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2. A New Framework for Enhancing VANETs through Layer 2 DLT Architectures with Multiparty Threshold Key Management and PETs

Author

Haitham Y. Adarbah, Mehmet Sabir Kiraz, Suleyman Kardas, Ali H. Al-Bayatti, and Hilal M. Y. Al-Bayatti

Subjects
VANETs, Homomorphic Encryption, Decentralised Ledger Technologies, Layer 2 DLT, Information technology, T58.5-58.64
Abstract

This work proposes a new architectural approach to enhance the security, privacy, and scalability of VANETs through threshold key management and Privacy Enhancing Technologies (PETs), such as homomorphic encryption and secure multiparty computation, integrated with Decentralized Ledger Technologies (DLTs). These advanced mechanisms are employed to eliminate centralization and protect the privacy of transferred and processed information in VANETs, thereby addressing privacy concerns. We begin by discussing the weaknesses of existing VANET architectures concerning trust, privacy, and scalability and then introduce a new architectural framework that shifts from centralized to decentralized approaches. This transition applies a decentralized ledger mechanism to ensure correctness, reliability, accuracy, and security against various known attacks. The use of Layer 2 DLTs in our framework enhances key management, trust distribution, and data privacy, offering cost and speed advantages over Layer 1 DLTs, thereby enabling secure vehicle-to-everything (V2X) communication. The proposed framework is superior to other frameworks as it improves decentralized trust management, adopts more efficient PETs, and leverages Layer 2 DLT for scalability. The integration of multiparty threshold key management and homomorphic encryption also enhances data confidentiality and integrity, thus securing against various existing cryptographic attacks. Finally, we discuss potential future developments to improve the security and reliability of VANETs in the next generation of networks, including 5G networks.

Published
2024
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3. Correction: Prophylactic abdominal drainage or no drainage after distal pancreatectomy (PANDORINA): a study protocol of a binational multicenter randomized controlled trial

Author

Vissers, F. L., Balduzzi, A., van Bodegraven, E. A., van Hilst, J., Festen, S., Hilal, M. Abu, Asbun, H. J., Mieog, J. S. D., Koerkamp, B. Groot, Busch, O. R., Daams, F., Luyer, M., De Pastena, M., Malleo, G., Marchegiani, G., Klaase, J., Molenaar, I. Q., Salvia, R., van Santvoort, H. C., Stommel, M., Lips, D., Coolsen, M., Bassi, C., van Eijck, C., and Besselink, M. G.

Published
2023
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5. Pastoralism in Changthang, Ladakh: Adaptations, Challenges, and Pathways for Sustainability

Author

Arif Pandit, Masood Mir, Mohsin Mir, Yaqoob Wani, Irfan Bisati, Saif Un Nisa, Hilal M. Khan, and Riaz A. Shah

Subjects
changthang, ladakh, livestock, pastoralism, transhumance, Environmental sciences, GE1-350
Abstract

In the Changthang region of Ladakh, India, pastoralism serves as the cornerstone of both the local economy and the local way of life. However, recent socioeconomic shifts and environmental constraints put this economic structure, which has been expertly adapted to the difficult trans-Himalayan geography, in danger of becoming unsustainable. To explore methods for balancing development, ecology, and Indigenous culture, this review analyzes pastoralism in Changthang. The sole dependable method of food production for generations has been mobile pastoralism, supported by high-elevation rangelands. Breeds of native livestock adapted to scant vegetation and seasonal variation have been selectively bred by generations of pastoralists. Sale of wool and cashmere provides financial stability for pastoralist families, mitigating income vulnerability to climate shocks and market fluctuations that would otherwise disrupt predominantly livestock-rearing livelihoods. However, traditional transhumance cycles and collective resource management have been hampered by sedentarization, population growth, conservation constraints, and market integration. Climate change and unrestricted grazing contribute to grassland degradation. Promising programs combine conventional methods with innovations like mobile veterinary services and satellite forecasting to preserve breeds and grazing resources while increasing productivity and climate resilience. These initiatives seek to support regulated grazing practices. Comanagement practices that involve communities in conservation planning are essential. This production system and culture can be maintained through integrated strategies respecting pastoralists' stewardship.

Published
2024
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6. Silver nanoparticles from Saudi and syrian black cumin seed extracts: Green synthesis, ADME, toxicity, comparative research, and biological appraisal

Author

Mohammad Rashid, Md Tanwir Athar, Mohammed Abdelmageed, Mohammed Hilal M Al-Harbi, Asif Husain, Dheeraj Bisht, and Rajeshwar Kamal Kant Arya

Subjects
% dpph, antibacterial activity, nigella sativa, pkcsm and protox-ii, silver nanoparticle, swiss-adme, Pharmacy and materia medica, RS1-441, Analytical chemistry, QD71-142
Abstract

Objective: The current study's objective is to highlight the value of using plant resources to identify key bioactive molecules and implement green chemistry in research and development to meet market demand. Materials and Methods: The black cumin seeds (Saudi and Syria originated) were utilized to make silver nanoparticles (Ag-NPs), which were subsequently confirmed using a UV spectrophotometer and color analysis of reaction mixtures. The antibacterial activity of Ag-NPs was tested against E. coli, K. pneumoniae, and S. aureus, and antioxidant activity was measured using the DPPH assay. Swiss-ADME, pkCSM, and ProTox-II were also used to assess the pharmacokinetics, oral bioavailability, toxicity, and safety endpoints of molecules. Result: The antibacterial effect of Ag-NPs from Saudi-origin black cumin seeds was observed higher. In comparison to the standard, the Saudi and Syrian Ag-NPs combined displayed synergistic antibacterial effects and were found to be more susceptible to S. aureus. In comparison to the reference, the antioxidant activity of Ag-NPs indicated 60–85% radical scavenging. All molecules passed the Lipinski rule, the filter (Veber, Egan, and Muegge), PAINS, and the Brenk structural alert (zero violations), and the synthetic score was also found to be in the easy limit (1 to 2). The compounds were found to be non-substrate for p-glycoprotein, high GIA% (>90%), non-inhibitor for CYP3A4, CYP2C19, CYP2C9, CYP2D6 (except 5 and 10), Log Po/w (1.71 to 3.26), TPSA 150 2 and MR 155. The compounds likewise had high Caco2 values (log Papp >0.9) with the exception of 4 and 9 (log Papp 0.9), were non-inhibitors of P-gp-I and II and hERG I and II, and showed no AMES toxicity. Except for molecule 11, no organ damage (hepatotoxicity) or endpoint toxicity (mutagenicity, immunotoxicity, carcinogenicity, and cytotoxicity) was identified in ProTox-II. Conclusion: The current study sheds new light on the significance of bioactive molecules found in black cumin seeds, with molecules 3 and 6 identified as potential leads (highest GIA%, no AMES toxicity, oral rat acute and chronic toxicity, lack of renal OCT2 substrate, high total clearance, and lack of organ toxicity) for further research for a variety of medical applications.

Published
2023
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7. A review of seawater desalination with membrane distillation: material development and energy requirements

Author

Jimoh Kayode Adewole, Hilal M. Al Maawali, Tahereh Jafary, Amin Firouzi, and Habeebllah Oladipo

Subjects
desalination, fouling, membrane distillation, renewable energy, solar energy, wastewater treatment, Water supply for domestic and industrial purposes, TD201-500, River, lake, and water-supply engineering (General), TC401-506
Abstract

The importance of membrane technology development in our daily life cannot be overemphasized. Over the past decades, membrane technology has become very popular in providing potable water for mankind. However, old technologies (such as reverse osmosis and ultrafiltration) which are highly energy intensive are still very common in water treatment industries. In this review, the capability of low energy consumption membrane distillation (MD) technology is reviewed with emphasis on material development and energy requirement. We begin by reviewing the history of the MD process, configurations, module types, membrane materials, material fabrication methods, material properties, material modification techniques, application, and energy requirements. Factors which influence the performance of MD – both design and operating conditions – are then extensively discussed. Furthermore, we report desalination and wastewater treatment as the hottest areas of application where MD has gained significant interest. Membrane hydrophobicity and fouling resistance are identified as pivotal areas where improvement in MD performance is being sought. We then discuss various industries where MD is presently being applied. We conclude by highlighting the energy requirements of MD and identify solar energy as a renewable energy resource which could meet the energy requirement of MD technology. It is hoped that this review paper will foster interest in and provide insights on material development for membrane distillation application. HIGHLIGHTS Material selection is pivotal to membrane performance for MD application.; MD strongly depends on both membrane properties and operating conditions.; Both energy efficiency and water flux are important factors in MD performance evaluation.; Water desalination and wastewater treatment have received significant attention in MD application.;

Published
2022
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8. Dragon 1 Protocol Manuscript: Training, Accreditation, Implementation and Safety Evaluation of Portal and Hepatic Vein Embolization (PVE/HVE) to Accelerate Future Liver Remnant (FLR) Hypertrophy

Author

Korenblik, R., Olij, B., Aldrighetti, L. A., Hilal, M. Abu, Ahle, M., Arslan, B., van Baardewijk, L. J., Baclija, I., Bent, C., Bertrand, C. L., Björnsson, B., de Boer, M. T., de Boer, S. W., Bokkers, R. P. H., Rinkes, I. H. M. Borel, Breitenstein, S., Bruijnen, R. C. G., Bruners, P., Büchler, M. W., Camacho, J. C., Cappelli, A., Carling, U., Chan, B. K. Y., Chang, D. H., choi, J., Font, J. Codina, Crawford, M., Croagh, D., Cugat, E., Davis, R., De Boo, D. W., De Cobelli, F., De Wispelaere, J. F., van Delden, O. M., Delle, M., Detry, O., Díaz-Nieto, R., Dili, A., Erdmann, J. I., Fisher, O., Fondevila, C., Fretland, Å., Borobia, F. Garcia, Gelabert, A., Gérard, L., Giuliante, F., Gobardhan, P. D., Gómez, F., Grünberger, T., Grünhagen, D. J., Guitart, J., Hagendoorn, J., Heil, J., Heise, D., Herrero, E., Hess, G. F., Hoffmann, M. H., Iezzi, R., Imani, F., Nguyen, J., Jovine, E., Kalff, J. C., Kazemier, G., Kingham, T. P., Kleeff, J., Kollmar, O., Leclercq, W. K. G., Ben, S. Lopez, Lucidi, V., MacDonald, A., Madoff, D. C., Manekeller, S., Martel, G., Mehrabi, A., Mehrzad, H., Meijerink, M. R., Menon, K., Metrakos, P., Meyer, C., Moelker, A., Modi, S., Montanari, N., Navines, J., Neumann, U. P., Peddu, P., Primrose, J. N., Qu, X., Raptis, D., Ratti, F., Ridouani, F., Rogan, C., Ronellenfitsch, U., Ryan, S., Sallemi, C., Moragues, J. Sampere, Sandström, P., Sarriá, L., Schnitzbauer, A., Serenari, M., Serrablo, A., Smits, M. L. J., Sparrelid, E., Spüntrup, E., Stavrou, G. A., Sutcliffe, R. P., Tancredi, I., Tasse, J. C., Udupa, V., Valenti, D., Fundora, Y., Vogl, T. J., Wang, X., White, S. A., Wohlgemuth, W. A., Yu, D., Zijlstra, I. A. J., Binkert, C. A., Bemelmans, M. H. A., van der Leij, C., Schadde, E., and van Dam, R. M.

Published
2022
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10. Prophylactic abdominal drainage or no drainage after distal pancreatectomy (PANDORINA): a study protocol of a binational multicenter randomized controlled trial

Author

Vissers, F. L., Balduzzi, A., van Bodegraven, E. A., van Hilst, J., Festen, S., Hilal, M. Abu, Asbun, H. J., Mieog, J. S. D., Koerkamp, B. Groot, Busch, O. R., Daams, F., Luyer, M., De Pastena, M., Malleo, G., Marchegiani, G., Klaase, J., Molenaar, I. Q., Salvia, R., van Santvoort, H. C., Stommel, M., Lips, D., Coolsen, M., Bassi, C., van Eijck, C., and Besselink, M. G.

Published
2022
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11. A New Framework for Enhancing VANETs through Layer 2 DLT Architectures with Multiparty Threshold Key Management and PETs.

Author

Adarbah, Haitham Y., Kiraz, Mehmet Sabir, Kardas, Suleyman, Al-Bayatti, Ali H., and Al-Bayatti, Hilal M. Y.

Subjects
NEXT generation networks, VEHICULAR ad hoc networks, TRUST, 5G networks, DATA integrity
Abstract

This work proposes a new architectural approach to enhance the security, privacy, and scalability of VANETs through threshold key management and Privacy Enhancing Technologies (PETs), such as homomorphic encryption and secure multiparty computation, integrated with Decentralized Ledger Technologies (DLTs). These advanced mechanisms are employed to eliminate centralization and protect the privacy of transferred and processed information in VANETs, thereby addressing privacy concerns. We begin by discussing the weaknesses of existing VANET architectures concerning trust, privacy, and scalability and then introduce a new architectural framework that shifts from centralized to decentralized approaches. This transition applies a decentralized ledger mechanism to ensure correctness, reliability, accuracy, and security against various known attacks. The use of Layer 2 DLTs in our framework enhances key management, trust distribution, and data privacy, offering cost and speed advantages over Layer 1 DLTs, thereby enabling secure vehicle-to-everything (V2X) communication. The proposed framework is superior to other frameworks as it improves decentralized trust management, adopts more efficient PETs, and leverages Layer 2 DLT for scalability. The integration of multiparty threshold key management and homomorphic encryption also enhances data confidentiality and integrity, thus securing against various existing cryptographic attacks. Finally, we discuss potential future developments to improve the security and reliability of VANETs in the next generation of networks, including 5G networks. [ABSTRACT FROM AUTHOR]

Published
2024
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13. Machine Learning-Aided Design of Dielectric-Filled Slotted Waveguide Antennas With Specified Sidelobe Levels

Author

Tarek Naous, Amen Al Merie, Salwa K. Al Khatib, Mohammed Al-Husseini, Raed M. Shubair, and Hilal M. El Misilmani

Subjects
Antenna design, slotted waveguide antennas, dielectric-filled SWA, sidelobe level ratio, machine learning, neural networks, Electrical engineering. Electronics. Nuclear engineering, TK1-9971
Abstract

This paper presents the use of machine learning (ML) to facilitate the design of dielectric-filled Slotted Waveguide Antennas (SWAs) with specified sidelobe level ratios (SLR). Conventional design methods for air-filled SWAs require the simultaneous solving of complex equations to deduce the antenna’s design parameters, which typically requires further manual simulation-based optimization to reach the desired resonance frequency and SLR. The few works that investigated the design of filled SWAs, did not optimize the design for a specified SLR. For an accelerated design process in the case of specified SLRs, we formulate the design of dielectric-filled SWAs as a regression problem where based on input specifications of the antenna’s SLR, reflection coefficient, frequency of operation, and relative permittivity of the dielectric material, the developed ML model predicts the filled SWA’s design parameters with very low error. These parameters include the unified slots length and the non-uniform slot displacements required to achieve the desired performance. We experiment with several regressive ML algorithms and provide a comparative study of their results. Our numerical evaluations and validation experiments with the best performing ML models demonstrate the high efficiency of the proposed ML approach in estimating the dielectric-filled SWA’s design parameters in only a few milliseconds. A comparison to the design obtained through conventional optimization using the Genetic Algorithm also indicates superiority of the ML models in computation time and resulting antenna performance.

Published
2022
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14. Long-Term Quality of Life after Minimally Invasive vs Open Distal Pancreatectomy in the LEOPARD Randomized Trial

Author

van Santvoort, H.C., de Boer, M.T., Boerma, D., van den Boezem, P.B., van Dam, R.M., Dejong, C.H., van Duyn, E.B., van Eijck, C.H., Gerhards, M.F., de Hingh, I.H., Kazemier, G., de Kleine, R.H., van Laarhoven, C.J., Patijn, G.A., Steenvoorde, P., Suker, M., Hilal, M. Abu, Korrel, Maarten, Roelofs, Anne, van Hilst, Jony, Busch, Olivier R., Daams, Freek, Festen, Sebastiaan, Groot Koerkamp, Bas, Klaase, Joost, Luyer, Misha D., van Oijen, Martijn G., Verdonck-de Leeuw, Irma M., and Besselink, Marc G.

Published
2021
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17. Characteristic Mode Solution of Complex-Coefficient Complex-Solution Differential Equations

Author

Youssef , Khalid, Moussa, Maria, Al-Husseini, Mohammed, El Misilmani, Hilal M., Kabalan, Karim Y., El Didi, Ibrahim, Youssef , Khalid, Moussa, Maria, Al-Husseini, Mohammed, El Misilmani, Hilal M., Kabalan, Karim Y., and El Didi, Ibrahim

Abstract

Computation of complex-coefficient complex-solution differential equations is a problem that arises in various domains of science and engineering. This paper aims at applying the Theory of Characteristic Modes (TCM) approach along with the Method of Moments (MoM) in solving these problems with emphasis on procedures for higher differential equations. Several available methods, known in literatures, are available for solving the problem. The complexity of the available methods differs based on the accuracy of the solution. In this paper, the general method is first presented and then a simplified version of it is proposed to solve high order differential equations. Two examples are illustrated, a third and a fourth order complex-coefficients complex-solution differential equations, to show the simplicity of the proposed method. The proposed approach can be also introduced along with other methods to solve these special occurrences differential equations and other boundary value problems.

Published
2024

22. A Survey on Antenna Designs for Breast Cancer Detection Using Microwave Imaging

Author

Hilal M. El Misilmani, Tarek Naous, Salwa K. Al Khatib, and Karim Y. Kabalan

Subjects
Antenna design, antenna arrays, breast cancer detection, microwave breast imaging, ultra wideband antennas (UWB), Electrical engineering. Electronics. Nuclear engineering, TK1-9971
Abstract

With the prevalence of breast cancer among women and the shortcomings of conventional techniques in detecting breast cancer at its early stages, microwave breast imaging has been an active area of research and has gained momentum over the past few years, mainly due to the advantages and improved detection rates it has to offer. To achieve this outcome, specifically designed antennas are needed to satisfy the needs of such systems where an antenna array is typically used. These antennas need to comply with several criteria to make them suitable for such applications, which most importantly include bandwidth, size, design complexity, and cost of manufacturing. Many works in the literature proposed antennas designed to meet these criteria, but no works have classified and evaluated these antennas for the use in microwave breast imaging. This paper presents a comprehensive study of the different array configurations proposed for microwave breast imaging, with a thorough investigation of the antenna elements proposed to be used with these systems, classified per antenna type, and per the improvements that concern the operational bandwidth, the size of the antenna, the radiation characteristics, and the techniques used to achieve the improvement. At the end of the investigation, a qualitative evaluation of the antenna designs is presented, providing a comparison between the investigated antennas, and determining whether a design is suitable or not to be used in antenna arrays for microwave breast imaging, based on the performance of each. An evaluation of the investigated arrays is also presented, where the advantages and limitations of each array configuration are discussed.

Published
2020
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23. Post cholecystectomy bile duct injury: early, intermediate or late repair with hepaticojejunostomy – an E-AHPBA multi-center study

Author

Rystedt, Jenny M.L., Kleeff, Jörg, Salvia, Roberto, Besselink, Mark G., Prasad, Raj, Lesurtel, Mickael, Sturesson, Christian, Abu Hilal, M., Aljaiuossi, A., Antonucci, A., Ardito, F., Ausania, F., Bernon, M., Berrevoet, F., Björnsson, B., Bonsing, B.A., Boonstra, E.A., Bracke, B., Brusadin, R., Burda, L., Caraballo, M., Casellas-Robert, M., Çoker, A., Davide, J., De Gelder, A., De Rose, A.M., Djokic, M., Dudek, K., Ekmekçigil, E., Filauro, M., Fülöp, A., Gallagher, T., Gastaca, M., Gefen, R., Giuliante, F., Habibeh, H., Halle-Smith, J., Haraldsdottir, K.H., Hartman, V., Hauer, A., Hemmingsson, O., Hoskovec, D., Isaksson, B., Jonas, E., Khalaileh, A., Klug, R., Krige, J., Lignier, D., Lindemann, J., López-López, V., Lucidi, V., Mabrut, J.-Y., Månsson, C., Mieog, S., Mirza, D.F., Oldhafer, K.J., Omoshoro-Jones, J.A.O., Ortega-Torrecilla, N., Otto, W., Panaro, F., Pando, E., Paterna-López, S., Pekmezci, S., Pesce, A., Porte, R.J., Poves, I., Prieto Calvo, M., Primavesi, F., Puleo, S., Recordare, A., Rizell, M., Roberts, K., Robles-Campos, R., Sanchiz-Cardenas, E., Sandström, P., Saribeyoglu, K., Schauer, M., Schreuder, M., Siriwardena, A.K., Smith, M.D., Sousa Silva, D., Sparrelid, E., Stättner, S., Stavrou, G.A., Straka, M., Strömberg, C., Sutcliffe, R.P., Szijártó, A., Taflin, H., Trotovšek, B., van Gulik, T., Wallach, N., and Zieniewicz, K.

Published
2019
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24. The Effect of a Liver Transplant Program on the Outcomes of Resectable Hepatocellular Carcinoma: A Nationwide Multicenter Analysis

Author

Serenari, M, Lenzi, J, Cucchetti, A, Cipriani, F, Donadon, M, Ardito, F, Fazio, F, Nicolini, D, Iaria, M, Famularo, S, Perri, P, Ansaloni, L, Zanello, M, Lai, Q, Conci, S, Molfino, S, Ferrari, C, Germani, P, Zago, M, Romano, M, Zimmitti, G, Antonucci, A, Fumagalli, L, Troci, A, Ferraro, V, Memeo, R, Crespi, M, Chiarelli, M, Ercolani, G, Hilal, M, Zanus, G, Pinotti, E, Tarchi, P, Griseri, G, Baiocchi, G, Ruzzenente, A, Rossi, M, Jovine, E, Maestri, M, Grazi, G, Romano, F, Dalla Valle, R, Ravaioli, M, Vivarelli, M, Ferrero, A, Giuliante, F, Torzilli, G, Aldrighetti, L, Cescon, M, Gorgone, M, Ratti, F, Costa, G, Razionale, F, Russolillo, N, Marinelli, L, Giuffrida, M, Scotti, M, Garancini, M, De Peppo, V, De Stefano, F, Laureiro, Z, Marchitelli, I, Franceschi, A, Cosola, D, Corleone, P, Montuori, M, Salvador, L, Manzoni, A, La Barba, G, Calcagno, P, Pennacchi, L, Conticchio, M, Serenari M., Lenzi J., Cucchetti A., Cipriani F., Donadon M., Ardito F., Fazio F., Nicolini D., Iaria M., Famularo S., Perri P., Ansaloni L., Zanello M., Lai Q., Conci S., Molfino S., Ferrari C., Germani P., Zago M., Romano M., Zimmitti G., Antonucci A., Fumagalli L., Troci A., Ferraro V., Memeo R., Crespi M., Chiarelli M., Ercolani G., Hilal M. A., Zanus G., Pinotti E., Tarchi P., Griseri G., Baiocchi G. L., Ruzzenente A., Rossi M., Jovine E., Maestri M., Grazi G. L., Romano F., Dalla Valle R., Ravaioli M., Vivarelli M., Ferrero A., Giuliante F., Torzilli G., Aldrighetti L., Cescon M., Gorgone M., Ratti F., Costa G., Razionale F., Russolillo N., Marinelli L., Giuffrida M., Scotti M., Garancini M., De Peppo V., De Stefano F., Laureiro Z. L., Marchitelli I., Franceschi A., Cosola D., Corleone P., Montuori M., Salvador L., Manzoni A., La Barba G., Calcagno P., Pennacchi L., Conticchio M., Serenari, M, Lenzi, J, Cucchetti, A, Cipriani, F, Donadon, M, Ardito, F, Fazio, F, Nicolini, D, Iaria, M, Famularo, S, Perri, P, Ansaloni, L, Zanello, M, Lai, Q, Conci, S, Molfino, S, Ferrari, C, Germani, P, Zago, M, Romano, M, Zimmitti, G, Antonucci, A, Fumagalli, L, Troci, A, Ferraro, V, Memeo, R, Crespi, M, Chiarelli, M, Ercolani, G, Hilal, M, Zanus, G, Pinotti, E, Tarchi, P, Griseri, G, Baiocchi, G, Ruzzenente, A, Rossi, M, Jovine, E, Maestri, M, Grazi, G, Romano, F, Dalla Valle, R, Ravaioli, M, Vivarelli, M, Ferrero, A, Giuliante, F, Torzilli, G, Aldrighetti, L, Cescon, M, Gorgone, M, Ratti, F, Costa, G, Razionale, F, Russolillo, N, Marinelli, L, Giuffrida, M, Scotti, M, Garancini, M, De Peppo, V, De Stefano, F, Laureiro, Z, Marchitelli, I, Franceschi, A, Cosola, D, Corleone, P, Montuori, M, Salvador, L, Manzoni, A, La Barba, G, Calcagno, P, Pennacchi, L, Conticchio, M, Serenari M., Lenzi J., Cucchetti A., Cipriani F., Donadon M., Ardito F., Fazio F., Nicolini D., Iaria M., Famularo S., Perri P., Ansaloni L., Zanello M., Lai Q., Conci S., Molfino S., Ferrari C., Germani P., Zago M., Romano M., Zimmitti G., Antonucci A., Fumagalli L., Troci A., Ferraro V., Memeo R., Crespi M., Chiarelli M., Ercolani G., Hilal M. A., Zanus G., Pinotti E., Tarchi P., Griseri G., Baiocchi G. L., Ruzzenente A., Rossi M., Jovine E., Maestri M., Grazi G. L., Romano F., Dalla Valle R., Ravaioli M., Vivarelli M., Ferrero A., Giuliante F., Torzilli G., Aldrighetti L., Cescon M., Gorgone M., Ratti F., Costa G., Razionale F., Russolillo N., Marinelli L., Giuffrida M., Scotti M., Garancini M., De Peppo V., De Stefano F., Laureiro Z. L., Marchitelli I., Franceschi A., Cosola D., Corleone P., Montuori M., Salvador L., Manzoni A., La Barba G., Calcagno P., Pennacchi L., and Conticchio M.

Abstract

Objective: To evaluate the effect of a liver transplantation (LT) program on the outcomes of resectable hepatocellular carcinoma (HCC). Background: Surgical treatment of HCC includes both hepatic resection (HR) and LT. However, the presence of cirrhosis and the possibility of recurrence make the management of this disease complex and probably different according to the presence of a LT program. Methods: Patients undergoing HR for HCC between January 2005 and December 2019 were identified from a national database of HCC. The main study outcomes were major surgical complications according to the Comprehensive Complication Index, posthepatectomy liver failure (PHLF), 90-day mortality, overall survival, and disease-free survival. Secondary outcomes were salvage liver transplantation (SLT) and postrecurrence survival. Results: A total of 3202 patients were included from 25 hospitals over the study period. Three of 25 (12%) had an LT program. The presence of an LT program within a center was associated with a reduced probability of PHLF (odds ratio=0.38) but not with overall survival and disease-free survival. There was an increased probability of SLT when HR was performed in a transplant hospital (odds ratio=12.05). Among transplant-eligible patients, those who underwent LT had a significantly longer postrecurrence survival. Conclusions: This study showed that the presence of a LT program was associated with decreased PHLF rates and an increased probability to receive SLT in case of recurrence.

Published
2023

25. Multisocietal European consensus on the terminology, diagnosis, and management of patients with synchronous colorectal cancer and liver metastases: an E-AHPBA consensus in partnership with ESSO, ESCP, ESGAR, and CIRSE

Author

Siriwardena, A, Serrablo, A, Fretland, A, Wigmore, S, Ramia-Angel, J, Malik, H, Stattner, S, Soreide, K, Zmora, O, Meijerink, M, Kartalis, N, Lesurtel, M, Verhoef, K, Balakrishnan, A, Gruenberger, T, Jonas, E, Devar, J, Jamdar, S, Jones, R, Hilal, M, Andersson, B, Boudjema, K, Mullamitha, S, Stassen, L, Dasari, B, Frampton, A, Aldrighetti, L, Pellino, G, Buchwald, P, Gurses, B, Wasserberg, N, Gruenberger, B, Spiers, H, Jarnagin, W, Vauthey, J, Kokudo, N, Tejpar, S, Valdivieso, A, Adam, R, Lang, H, Smith, M, Deoliveira, M, Adair, A, Gilg, S, Swijnenburg, R, Jaekers, J, Jegatheeswaran, S, Buis, C, Parks, R, Bockhorn, M, Conroy, T, Petras, P, Primavesi, F, Chan, A, Cipriani, F, Rubbia-Brandt, L, Foster, L, Abdelaal, A, Yaqub, S, Rahbari, N, Fondevila, C, Abradelo, M, Kok, N, Tejedor, L, Martinez-Baena, D, Azoulay, D, Maglione, M, Serradilla-Martin, M, Azevedo, J, Romano, F, Line, P, Forcen, T, Panis, Y, Stylianides, N, Bale, R, Quaia, E, Yassin, N, Duque, V, Espin-Basany, E, Mellenhorst, J, Rees, A, Adeyeye, A, Tuynman, J, Simillis, C, Duff, S, Wilson, R, De Nardi, P, Palmer, G, Zakaria, A, Perra, T, Porcu, A, Tamini, N, Kelly, M, Metwally, I, Morarasu, S, Carbone, F, Estaire-Gomez, M, Perez, E, Seligmann, J, Gollins, S, Braun, M, Hessheimer, A, Alonso, V, Radhakrishna, G, Alam, N, Camposorias, C, Barriuoso, J, Ross, P, Ba-Ssalamah, A, Muthu, S, Filobbos, R, Nadarajah, V, Hattab, A, Newton, C, Barker, S, Sibbald, J, Hancock, J, de Liguori Carino, N, Deshpande, R, Lancellotti, F, Paterna, S, Gutierrez-Diez, M, Artigas, C, Siriwardena A. K., Serrablo A., Fretland A. A., Wigmore S. J., Ramia-Angel J. M., Malik H. Z., Stattner S., Soreide K., Zmora O., Meijerink M., Kartalis N., Lesurtel M., Verhoef K., Balakrishnan A., Gruenberger T., Jonas E., Devar J., Jamdar S., Jones R., Hilal M. A., Andersson B., Boudjema K., Mullamitha S., Stassen L., Dasari B. V. M., Frampton A. E., Aldrighetti L., Pellino G., Buchwald P., Gurses B., Wasserberg N., Gruenberger B., Spiers H. V. M., Jarnagin W., Vauthey J. -N., Kokudo N., Tejpar S., Valdivieso A., Adam R., Lang H., Smith M., deOliveira M. L., Adair A., Gilg S., Swijnenburg R. -J., Jaekers J., Jegatheeswaran S., Buis C., Parks R., Bockhorn M., Conroy T., Petras P., Primavesi F., Chan A. K. C., Cipriani F., Rubbia-Brandt L., Foster L., Abdelaal A., Yaqub S., Rahbari N., Fondevila C., Abradelo M., Kok N. F. M., Tejedor L., Martinez-Baena D., Azoulay D., Maglione M., Serradilla-Martin M., Azevedo J., Romano F., Line P. -D., Forcen T. A., Panis Y., Stylianides N., Bale R., Quaia E., Yassin N., Duque V., Espin-Basany E., Mellenhorst J., Rees A., Adeyeye A., Tuynman J. B., Simillis C., Duff S., Wilson R., De Nardi P., Palmer G. J., Zakaria A. D., Perra T., Porcu A., Tamini N., Kelly M. E., Metwally I., Morarasu S., Carbone F., Estaire-Gomez M., Perez E. M., Seligmann J., Gollins S., Braun M., Hessheimer A., Alonso V., Radhakrishna G., Alam N., Camposorias C., Barriuoso J., Ross P., Ba-Ssalamah A., Muthu S., Filobbos R., Nadarajah V., Hattab A., Newton C., Barker S., Sibbald J., Hancock J., de Liguori Carino N., Deshpande R., Lancellotti F., Paterna S., Gutierrez-Diez M., Artigas C., Siriwardena, A, Serrablo, A, Fretland, A, Wigmore, S, Ramia-Angel, J, Malik, H, Stattner, S, Soreide, K, Zmora, O, Meijerink, M, Kartalis, N, Lesurtel, M, Verhoef, K, Balakrishnan, A, Gruenberger, T, Jonas, E, Devar, J, Jamdar, S, Jones, R, Hilal, M, Andersson, B, Boudjema, K, Mullamitha, S, Stassen, L, Dasari, B, Frampton, A, Aldrighetti, L, Pellino, G, Buchwald, P, Gurses, B, Wasserberg, N, Gruenberger, B, Spiers, H, Jarnagin, W, Vauthey, J, Kokudo, N, Tejpar, S, Valdivieso, A, Adam, R, Lang, H, Smith, M, Deoliveira, M, Adair, A, Gilg, S, Swijnenburg, R, Jaekers, J, Jegatheeswaran, S, Buis, C, Parks, R, Bockhorn, M, Conroy, T, Petras, P, Primavesi, F, Chan, A, Cipriani, F, Rubbia-Brandt, L, Foster, L, Abdelaal, A, Yaqub, S, Rahbari, N, Fondevila, C, Abradelo, M, Kok, N, Tejedor, L, Martinez-Baena, D, Azoulay, D, Maglione, M, Serradilla-Martin, M, Azevedo, J, Romano, F, Line, P, Forcen, T, Panis, Y, Stylianides, N, Bale, R, Quaia, E, Yassin, N, Duque, V, Espin-Basany, E, Mellenhorst, J, Rees, A, Adeyeye, A, Tuynman, J, Simillis, C, Duff, S, Wilson, R, De Nardi, P, Palmer, G, Zakaria, A, Perra, T, Porcu, A, Tamini, N, Kelly, M, Metwally, I, Morarasu, S, Carbone, F, Estaire-Gomez, M, Perez, E, Seligmann, J, Gollins, S, Braun, M, Hessheimer, A, Alonso, V, Radhakrishna, G, Alam, N, Camposorias, C, Barriuoso, J, Ross, P, Ba-Ssalamah, A, Muthu, S, Filobbos, R, Nadarajah, V, Hattab, A, Newton, C, Barker, S, Sibbald, J, Hancock, J, de Liguori Carino, N, Deshpande, R, Lancellotti, F, Paterna, S, Gutierrez-Diez, M, Artigas, C, Siriwardena A. K., Serrablo A., Fretland A. A., Wigmore S. J., Ramia-Angel J. M., Malik H. Z., Stattner S., Soreide K., Zmora O., Meijerink M., Kartalis N., Lesurtel M., Verhoef K., Balakrishnan A., Gruenberger T., Jonas E., Devar J., Jamdar S., Jones R., Hilal M. A., Andersson B., Boudjema K., Mullamitha S., Stassen L., Dasari B. V. M., Frampton A. E., Aldrighetti L., Pellino G., Buchwald P., Gurses B., Wasserberg N., Gruenberger B., Spiers H. V. M., Jarnagin W., Vauthey J. -N., Kokudo N., Tejpar S., Valdivieso A., Adam R., Lang H., Smith M., deOliveira M. L., Adair A., Gilg S., Swijnenburg R. -J., Jaekers J., Jegatheeswaran S., Buis C., Parks R., Bockhorn M., Conroy T., Petras P., Primavesi F., Chan A. K. C., Cipriani F., Rubbia-Brandt L., Foster L., Abdelaal A., Yaqub S., Rahbari N., Fondevila C., Abradelo M., Kok N. F. M., Tejedor L., Martinez-Baena D., Azoulay D., Maglione M., Serradilla-Martin M., Azevedo J., Romano F., Line P. -D., Forcen T. A., Panis Y., Stylianides N., Bale R., Quaia E., Yassin N., Duque V., Espin-Basany E., Mellenhorst J., Rees A., Adeyeye A., Tuynman J. B., Simillis C., Duff S., Wilson R., De Nardi P., Palmer G. J., Zakaria A. D., Perra T., Porcu A., Tamini N., Kelly M. E., Metwally I., Morarasu S., Carbone F., Estaire-Gomez M., Perez E. M., Seligmann J., Gollins S., Braun M., Hessheimer A., Alonso V., Radhakrishna G., Alam N., Camposorias C., Barriuoso J., Ross P., Ba-Ssalamah A., Muthu S., Filobbos R., Nadarajah V., Hattab A., Newton C., Barker S., Sibbald J., Hancock J., de Liguori Carino N., Deshpande R., Lancellotti F., Paterna S., Gutierrez-Diez M., and Artigas C.

Abstract

Background: Contemporary management of patients with synchronous colorectal cancer and liver metastases is complex. The aim of this project was to provide a practical framework for care of patients with synchronous colorectal cancer and liver metastases, with a focus on terminology, diagnosis, and management. Methods: This project was a multiorganizational, multidisciplinary consensus. The consensus group produced statements which focused on terminology, diagnosis, and management. Statements were refined during an online Delphi process, and those with 70 per cent agreement or above were reviewed at a final meeting. Iterations of the report were shared by electronic mail to arrive at a final agreed document comprising 12 key statements. Results: Synchronous liver metastases are those detected at the time of presentation of the primary tumour. The term 'early metachronous metastases' applies to those absent at presentation but detected within 12 months of diagnosis of the primary tumour, the term 'late metachronous metastases' applies to those detected after 12 months. 'Disappearing metastases' applies to lesions that are no longer detectable on MRI after systemic chemotherapy. Guidance was provided on the recommended composition of tumour boards, and clinical assessment in emergency and elective settings. The consensus focused on treatment pathways, including systemic chemotherapy, synchronous surgery, and the staged approach with either colorectal or liver-directed surgery as first step. Management of pulmonary metastases and the role of minimally invasive surgery was discussed. Conclusion: The recommendations of this contemporary consensus provide information of practical value to clinicians managing patients with synchronous colorectal cancer and liver metastases.

Published
2023

26. The multi-societal European consensus on the terminology, diagnosis and management of patients with synchronous colorectal cancer and liver metastases: an E-AHPBA consensus in partnership with ESSO, ESCP, ESGAR, and CIRSE

Author

Siriwardena, A, Serrablo, A, Fretland, A, Wigmore, S, Ramia-Angel, J, Malik, H, Stattner, S, Soreide, K, Zmora, O, Meijerink, M, Kartalis, N, Lesurtel, M, Verhoef, C, Balakrishnan, A, Gruenberger, T, Jonas, E, Devar, J, Jamdar, S, Jones, R, Hilal, M, Andersson, B, Boudjema, K, Mullamitha, S, Stassen, L, Dasari, B, Frampton, A, Aldrighetti, L, Pellino, G, Buchwald, P, Gurses, B, Wasserberg, N, Gruenberger, B, Spiers, H, Jarnagin, W, Vauthey, J, Kokudo, N, Tejpar, S, Valdivieso, A, Adam, R, Hauke, L, Smith, M, Deoliveira, M, Adair, A, Gilg, S, Swijnenburg, R, Jaekers, J, Jegatheeswaran, S, Buis, C, Parks, R, Bockhorn, M, Conroy, T, Petras, P, Primavesi, F, Chan, A, Cipriani, F, Rubbia-Brandt, L, Foster, L, Abdelaal, A, Yaqub, S, Rahbari, N, Fondevila, C, Abradelo, M, Kok, N, Tejedor, L, Martinez-Baena, D, Azoulay, D, Maglione, M, Serradilla-Martin, M, Azevedo, J, Romano, F, Line, P, Forcen, T, Panis, Y, Stylianides, N, Bale, R, Quaia, E, Yassin, N, Duque, V, Espin-Basany, E, Mellenhorst, J, Rees, A, Adeyeye, A, Tuynman, J, Simillis, C, Duff, S, Wilson, R, De Nardi, P, Palmer, G, Zakaria, A, Perra, T, Porcu, A, Tamini, N, Kelly, M, Metwally, I, Morarasu, S, Carbone, F, Estaire-Gomez, M, Perez, E, Seligmann, J, Gollins, S, Braun, M, Hessheimer, A, Alonso, V, Radhakrishna, G, Alam, N, Camposorias, C, Barriuoso, J, Ross, P, Ba-Ssalamah, A, Muthu, S, Filobbos, R, Nadarajah, V, Hattab, A, Newton, C, Barker, S, Sibbald, J, Hancock, J, de Liguori Carino, N, Deshpande, R, Lancellotti, F, Paterna, S, Gutierrez-Diez, M, Artigas, C, Siriwardena A. K., Serrablo A., Fretland A. A., Wigmore S. J., Ramia-Angel J. M., Malik H. Z., Stattner S., Soreide K., Zmora O., Meijerink M., Kartalis N., Lesurtel M., Verhoef C., Balakrishnan A., Gruenberger T., Jonas E., Devar J., Jamdar S., Jones R., Hilal M. A., Andersson B., Boudjema K., Mullamitha S., Stassen L., Dasari B. V. M., Frampton A. E., Aldrighetti L., Pellino G., Buchwald P., Gurses B., Wasserberg N., Gruenberger B., Spiers H. V. M., Jarnagin W., Vauthey J. -N., Kokudo N., Tejpar S., Valdivieso A., Adam R., Hauke Lang, Smith M., deOliveira M. L., Adair A., Gilg S., Swijnenburg R. -J., Jaekers J., Jegatheeswaran S., Buis C., Parks R., Bockhorn M., Conroy T., Petras P., Primavesi F., Chan A. K. C., Cipriani F., Rubbia-Brandt L., Foster L., Abdelaal A., Yaqub S., Rahbari N., Fondevila C., Abradelo M., Kok N. F., Tejedor L., Martinez-Baena D., Azoulay D., Maglione M., Serradilla-Martin M., Azevedo J., Romano F., Line P. -D., Forcen T. A., Panis Y., Stylianides N., Bale R., Quaia E., Yassin N., Duque V., Espin-Basany E., Mellenhorst J., Rees A., Adeyeye A., Tuynman J. B., Simillis C., Duff S., Wilson R., De Nardi P., Palmer G. J., Zakaria A. D., Perra T., Porcu A., Tamini N., Kelly M. E., Metwally I., Morarasu S., Carbone F., Estaire-Gomez M., Perez E. M., Seligmann J., Gollins S., Braun M., Hessheimer A., Alonso V., Radhakrishna G., Alam N., Camposorias C., Barriuoso J., Ross P., Ba-Ssalamah A., Muthu S., Filobbos R., Nadarajah V., Hattab A., Newton C., Barker S., Sibbald J., Hancock J., de Liguori Carino N., Deshpande R., Lancellotti F., Paterna S., Gutierrez-Diez M., Artigas C., Siriwardena, A, Serrablo, A, Fretland, A, Wigmore, S, Ramia-Angel, J, Malik, H, Stattner, S, Soreide, K, Zmora, O, Meijerink, M, Kartalis, N, Lesurtel, M, Verhoef, C, Balakrishnan, A, Gruenberger, T, Jonas, E, Devar, J, Jamdar, S, Jones, R, Hilal, M, Andersson, B, Boudjema, K, Mullamitha, S, Stassen, L, Dasari, B, Frampton, A, Aldrighetti, L, Pellino, G, Buchwald, P, Gurses, B, Wasserberg, N, Gruenberger, B, Spiers, H, Jarnagin, W, Vauthey, J, Kokudo, N, Tejpar, S, Valdivieso, A, Adam, R, Hauke, L, Smith, M, Deoliveira, M, Adair, A, Gilg, S, Swijnenburg, R, Jaekers, J, Jegatheeswaran, S, Buis, C, Parks, R, Bockhorn, M, Conroy, T, Petras, P, Primavesi, F, Chan, A, Cipriani, F, Rubbia-Brandt, L, Foster, L, Abdelaal, A, Yaqub, S, Rahbari, N, Fondevila, C, Abradelo, M, Kok, N, Tejedor, L, Martinez-Baena, D, Azoulay, D, Maglione, M, Serradilla-Martin, M, Azevedo, J, Romano, F, Line, P, Forcen, T, Panis, Y, Stylianides, N, Bale, R, Quaia, E, Yassin, N, Duque, V, Espin-Basany, E, Mellenhorst, J, Rees, A, Adeyeye, A, Tuynman, J, Simillis, C, Duff, S, Wilson, R, De Nardi, P, Palmer, G, Zakaria, A, Perra, T, Porcu, A, Tamini, N, Kelly, M, Metwally, I, Morarasu, S, Carbone, F, Estaire-Gomez, M, Perez, E, Seligmann, J, Gollins, S, Braun, M, Hessheimer, A, Alonso, V, Radhakrishna, G, Alam, N, Camposorias, C, Barriuoso, J, Ross, P, Ba-Ssalamah, A, Muthu, S, Filobbos, R, Nadarajah, V, Hattab, A, Newton, C, Barker, S, Sibbald, J, Hancock, J, de Liguori Carino, N, Deshpande, R, Lancellotti, F, Paterna, S, Gutierrez-Diez, M, Artigas, C, Siriwardena A. K., Serrablo A., Fretland A. A., Wigmore S. J., Ramia-Angel J. M., Malik H. Z., Stattner S., Soreide K., Zmora O., Meijerink M., Kartalis N., Lesurtel M., Verhoef C., Balakrishnan A., Gruenberger T., Jonas E., Devar J., Jamdar S., Jones R., Hilal M. A., Andersson B., Boudjema K., Mullamitha S., Stassen L., Dasari B. V. M., Frampton A. E., Aldrighetti L., Pellino G., Buchwald P., Gurses B., Wasserberg N., Gruenberger B., Spiers H. V. M., Jarnagin W., Vauthey J. -N., Kokudo N., Tejpar S., Valdivieso A., Adam R., Hauke Lang, Smith M., deOliveira M. L., Adair A., Gilg S., Swijnenburg R. -J., Jaekers J., Jegatheeswaran S., Buis C., Parks R., Bockhorn M., Conroy T., Petras P., Primavesi F., Chan A. K. C., Cipriani F., Rubbia-Brandt L., Foster L., Abdelaal A., Yaqub S., Rahbari N., Fondevila C., Abradelo M., Kok N. F., Tejedor L., Martinez-Baena D., Azoulay D., Maglione M., Serradilla-Martin M., Azevedo J., Romano F., Line P. -D., Forcen T. A., Panis Y., Stylianides N., Bale R., Quaia E., Yassin N., Duque V., Espin-Basany E., Mellenhorst J., Rees A., Adeyeye A., Tuynman J. B., Simillis C., Duff S., Wilson R., De Nardi P., Palmer G. J., Zakaria A. D., Perra T., Porcu A., Tamini N., Kelly M. E., Metwally I., Morarasu S., Carbone F., Estaire-Gomez M., Perez E. M., Seligmann J., Gollins S., Braun M., Hessheimer A., Alonso V., Radhakrishna G., Alam N., Camposorias C., Barriuoso J., Ross P., Ba-Ssalamah A., Muthu S., Filobbos R., Nadarajah V., Hattab A., Newton C., Barker S., Sibbald J., Hancock J., de Liguori Carino N., Deshpande R., Lancellotti F., Paterna S., Gutierrez-Diez M., and Artigas C.

Abstract

Background: Contemporary management of patients with synchronous colorectal cancer and liver metastases is complex. The aim of this project was to provide a practical framework for care of patients with synchronous colorectal cancer and liver metastases with a focus on terminology, diagnosis and management. Methods: This project was a multi-organisational, multidisciplinary consensus. The consensus group produced statements which focused on terminology, diagnosis and management. Statements were refined during an online Delphi process and those with 70% agreement or above were reviewed at a final meeting. Iterations of the report were shared by electronic mail to arrive at a final agreed document comprising twelve key statements. Results: Synchronous liver metastases are those detected at the time of presentation of the primary tumour. The term “early metachronous metastases” applies to those absent at presentation but detected within 12 months of diagnosis of the primary tumour with “late metachronous metastases” applied to those detected after 12 months. Disappearing metastases applies to lesions which are no longer detectable on MR scan after systemic chemotherapy. Guidance was provided on the recommended composition of tumour boards and clinical assessment in emergency and elective settings. The consensus focused on treatment pathways including systemic chemotherapy, synchronous surgery and the staged approach with either colorectal or liver-directed surgery as first step. Management of pulmonary metastases and the role of minimally invasive surgery was discussed. Conclusions: The recommendations of this contemporary consensus provide information of practical value to clinicians managing patients with synchronous colorectal cancer and liver metastases.

Published
2023

27. Survival benefit of second line therapies for recurrent hepatocellular carcinoma: repeated hepatectomy, thermoablation and second-line transplant referral in a real life national scenario

Author

Famularo, S, Cillo, U, Lauterio, A, Donadon, M, Vitale, A, Serenari, M, Cipriani, F, Fazio, F, Giuffrida, M, Ardito, F, Dominioni, T, Garancini, M, Lai, Q, Nicolini, D, Molfino, S, Perri, P, Pinotti, E, Conci, S, Ferrari, C, Zanello, M, Patauner, S, Zimmitti, G, Germani, P, Chiarelli, M, Romano, M, De Angelis, M, La Barba, G, Troci, A, Ferraro, V, Izzo, F, Antonucci, A, Belli, A, Memeo, R, Crespi, M, Ercolani, G, Boccia, L, Zanus, G, Tarchi, P, Hilal, M, Frena, A, Jovine, E, Griseri, G, Ruzzenente, A, Zago, M, Grazi, G, Baiocchi, G, Vivarelli, M, Rossi, M, Romano, F, Maestri, M, Giuliante, F, Valle, R, Ferrero, A, Aldrighetti, L, De Carlis, L, Cescon, M, Torzilli, G, Milana, F, Bertacco, A, De Carlis, R, Ratti, F, Russolillo, N, Iaria, M, Razionale, F, Tartaglia, G, Ciulli, C, Carissimi, F, Laureiro, Z, Marinelli, L, Depeppo, V, Montuori, M, Marchitelli, I, Franceschi, A, Notte, F, Manzoni, A, Cosola, D, Corleone, P, Fumagalli, L, Salvador, L, Mantovani, G, Cucchetti, A, Cammarata, F, Conticchio, M, Patrone, R, Bernasconi, D, Famularo S., Cillo U., Lauterio A., Donadon M., Vitale A., Serenari M., Cipriani F., Fazio F., Giuffrida M., Ardito F., Dominioni T., Garancini M., Lai Q., Nicolini D., Molfino S., Perri P., Pinotti E., Conci S., Ferrari C., Zanello M., Patauner S., Zimmitti G., Germani P., Chiarelli M., Romano M., De Angelis M., La Barba G., Troci A., Ferraro V., Izzo F., Antonucci A., Belli A., Memeo R., Crespi M., Ercolani G., Boccia L., Zanus G., Tarchi P., Hilal M. A., Frena A., Jovine E., Griseri G., Ruzzenente A., Zago M., Grazi G., Baiocchi G. L., Vivarelli M., Rossi M., Romano F., Maestri M., Giuliante F., Valle R. D., Ferrero A., Aldrighetti L., De Carlis L., Cescon M., Torzilli G., Milana F., Bertacco A., De Carlis R., Ratti F., Russolillo N., Iaria M., Razionale F., Tartaglia G., Ciulli C., Carissimi F., Laureiro Z. L., Marinelli L., DePeppo V., Montuori M., Marchitelli I., Franceschi A., Notte F., Manzoni A., Cosola D., Corleone P., Fumagalli L., Salvador L., Mantovani G., Cucchetti A., Cammarata F., Conticchio M., Patrone R., Bernasconi D. P., Famularo, S, Cillo, U, Lauterio, A, Donadon, M, Vitale, A, Serenari, M, Cipriani, F, Fazio, F, Giuffrida, M, Ardito, F, Dominioni, T, Garancini, M, Lai, Q, Nicolini, D, Molfino, S, Perri, P, Pinotti, E, Conci, S, Ferrari, C, Zanello, M, Patauner, S, Zimmitti, G, Germani, P, Chiarelli, M, Romano, M, De Angelis, M, La Barba, G, Troci, A, Ferraro, V, Izzo, F, Antonucci, A, Belli, A, Memeo, R, Crespi, M, Ercolani, G, Boccia, L, Zanus, G, Tarchi, P, Hilal, M, Frena, A, Jovine, E, Griseri, G, Ruzzenente, A, Zago, M, Grazi, G, Baiocchi, G, Vivarelli, M, Rossi, M, Romano, F, Maestri, M, Giuliante, F, Valle, R, Ferrero, A, Aldrighetti, L, De Carlis, L, Cescon, M, Torzilli, G, Milana, F, Bertacco, A, De Carlis, R, Ratti, F, Russolillo, N, Iaria, M, Razionale, F, Tartaglia, G, Ciulli, C, Carissimi, F, Laureiro, Z, Marinelli, L, Depeppo, V, Montuori, M, Marchitelli, I, Franceschi, A, Notte, F, Manzoni, A, Cosola, D, Corleone, P, Fumagalli, L, Salvador, L, Mantovani, G, Cucchetti, A, Cammarata, F, Conticchio, M, Patrone, R, Bernasconi, D, Famularo S., Cillo U., Lauterio A., Donadon M., Vitale A., Serenari M., Cipriani F., Fazio F., Giuffrida M., Ardito F., Dominioni T., Garancini M., Lai Q., Nicolini D., Molfino S., Perri P., Pinotti E., Conci S., Ferrari C., Zanello M., Patauner S., Zimmitti G., Germani P., Chiarelli M., Romano M., De Angelis M., La Barba G., Troci A., Ferraro V., Izzo F., Antonucci A., Belli A., Memeo R., Crespi M., Ercolani G., Boccia L., Zanus G., Tarchi P., Hilal M. A., Frena A., Jovine E., Griseri G., Ruzzenente A., Zago M., Grazi G., Baiocchi G. L., Vivarelli M., Rossi M., Romano F., Maestri M., Giuliante F., Valle R. D., Ferrero A., Aldrighetti L., De Carlis L., Cescon M., Torzilli G., Milana F., Bertacco A., De Carlis R., Ratti F., Russolillo N., Iaria M., Razionale F., Tartaglia G., Ciulli C., Carissimi F., Laureiro Z. L., Marinelli L., DePeppo V., Montuori M., Marchitelli I., Franceschi A., Notte F., Manzoni A., Cosola D., Corleone P., Fumagalli L., Salvador L., Mantovani G., Cucchetti A., Cammarata F., Conticchio M., Patrone R., and Bernasconi D. P.

Abstract

Background: Despite second-line transplant(SLT) for recurrent hepatocellular carcinoma(rHCC) leads to the longest survival after recurrence(SAR), its real applicability has never been reported. The aim was to compare the SAR of SLT versus repeated hepatectomy and thermoablation(CUR group). Methods: Patients were enrolled from the Italian register HE.RC.O.LE.S. between 2008 and 2021. Two groups were created: CUR versus SLT. A propensity score matching (PSM) was run to balance the groups. Results: 743 patients were enrolled, CUR = 611 and SLT = 132. Median age at recurrence was 71(IQR 6575) years old and 60(IQR 53-64, p < 0.001) for CUR and SLT respectively. After PSM, median SAR for CUR was 43 months(95%CI = 37 – 93) and not reached for SLT(p < 0.001). SLT patients gained a survival benefit of 9.4 months if compared with CUR. MilanCriteria(MC)-In patients were 82.7% of the CUR group. SLT(HR 0.386, 95%CI = 0.23 – 0.63, p < 0.001) and the MELD score(HR 1.169, 95%CI = 1.07 – 1.27, p < 0.001) were the only predictors of mortality. In case of MC-Out, the only predictor of mortality was the number of nodules at recurrence(HR 1.45, 95%CI= 1.09 – 1.93, p = 0.011). Conclusion: It emerged an important transplant under referral in favour of repeated hepatectomy or thermoablation. In patients with MC-Out relapse, the benefit of SLT over CUR was not observed.

Published
2023

30. A Comparison of Trojan Virus Behavior in Linux and Windows Operating Systems

Author

Al-Saadoon, Ghossoon. M. W. and Al-Bayatti, Hilal M. Y.

Subjects
Computer Science - Cryptography and Security
Abstract

Trojan virus attacks pose one of the most serious threats to computer security. A Trojan horse is typically separated into two parts - a server and a client. It is the client that is cleverly disguised as significant software and positioned in peer-to-peer file sharing networks, or unauthorized download websites. The most common means of infection is through email attachments. The developer of the virus usually uses various spamming techniques in order to distribute the virus to unsuspecting users. Malware developers use chat software as another method to spread their Trojan horse viruses such as Yahoo Messenger and Skype. The objective of this paper is to explore the network packet information and detect the behavior of Trojan attacks to monitoring operating systems such as Windows and Linux. This is accomplished by detecting and analyzing the Trojan infected packet from a network segment -which passes through email attachment- before attacking a host computer. The results that have been obtained to detect information and to store infected packets through monitoring when using the web browser also compare the behaviors of Linux and Windows using the payload size after implementing the Wireshark sniffer packet results. Conclusions of the figures analysis from the packet captured data to analyze the control bit, and check the behavior of the control bits, and the usability of the operating systems Linux and Windows., Comment: 7 Pages

Published
2011

33. Are the current difficulty scores for laparoscopic liver surgery telling the whole story? An international survey and recommendations for the future

Author

Abu Hilal, M., Aldrighetti, L., Al Saati, H., Alseidi, A., Aroori, S., Belli, G., Besselink, M., Edwin, B., D'Hondt, M., Dagher, I., Dejong, C., Geller, D., Hamady, Z., Hamoui, M., Isaksson, B., Ivanecz, A., Le Roux, G., Lesurtel, M., O'Rouke, N., Prasad, R., Prieto Calvo, M., Reddy, S., Rotellar, F., Santoyo, J., Soonawalla, Z., Soubrane, O., Stavrou, G., Subar, D., Sutcliffe, R., Tanis, P., Troisi, R., Van Dam, Ronald, Wakabayashi, G., White, S., Halls, Mark C., Cherqui, Daniel, Taylor, Mark A., Primrose, John N., and Abu Hilal, Mohammed

Published
2018
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34. Design procedure for planar slotted waveguide antenna arrays with controllable sidelobe level ratio for high power microwave applications

Author

Hilal M. El Misilmani, Mohammed Al‐Husseini, and Karim Y. Kabalan

Subjects
antenna arrays, high power microwave applications, slotted waveguide antennas, sidelobe level ratio, Engineering (General). Civil engineering (General), TA1-2040, Electronic computers. Computer science, QA75.5-76.95
Abstract

Summary This article presents a complete design procedure for planar slotted waveguide antennas (SWA). For a desired sidelobe level ratio (SLR), the proposed method provides a pencil shape pattern with a narrow half power beamwidth, which makes the proposed system suitable for high power microwave applications. The proposed planar SWA is composed of only two layers, and uses longitudinal coupling slots rather than the conventional inclined coupling slots. For a desired SLR, the slots excitation in the radiating and feeder SWAs are calculated based on a specified distribution. Simplified closed‐form equations are then used to determine the slots nonuniform displacements, for both the radiating and feeder SWAs, without the need to use optimization algorithms. Using simplified equations, the slots lengths, widths, and their distribution along the length of the radiating and feeder SWAs can be found. The feeder dimensions and slots positions are deduced from the dimensions and total number of the radiating SWAs. An 8 × 8 planar SWA has been designed and tested to show the validity of the proposed method. The obtained measured and simulated results are in accordance with the design objectives.

Published
2020
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35. Successful laparoscope-assisted orchiectomy in three cryptorchid sheep

Author

Nida Handoo, Mujeeb R Fazili, Mohmmad A. Gayas, Riyaz A. Shah, Abrar Malik, Hakim Athar, and Hilal M. Khan

Subjects
Andrology, Cryptorchid, Epidural, Laparoscope, Ovine, Veterinary medicine, SF600-1100
Abstract

Three adult Corriedale cryptorchid sheep were subjected to laparoscope-assisted orchiectomy of the retained testicles. One (n = 2) or both (n = 1) the testicles were missing in their scrotal sac and inguinal regions. Ultrasonography was used to locate the retained testicles and their distance from the abdominal surface. The animals were restrained in dorsal recumbency and Trendlenburg posture under lumbosacral epidural anaesthesia using 2% lignocaine hydrochloride. Two laparoscopic ports were created in the caudal abdomen adjacent to the retained testicles. They were identified by their ovoid shape, white glistening surface (Tunica albuginea) and typical vasculature. Laparoscope-assisted exteriorization of the testicles after enlarging the ports, ligation of their blood supply and resection of the spermatic cord was performed successfully. The scrotal testes in two rams were then subjected to routine Burdizzoo castration. The laparoscopic port sites healed without complications and all the animals continued to do well subsequently. From this case report, it is concluded that in sheep the laparoscopy; a minimally invasive procedure can confirm abdominal retention of testicle/s and may also be used for their retrieval in a single sitting. Although total laparoscopic procedure is expected to reduce the incision size further but requires advanced laparoscopic instruments and expertise.

Published
2020
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39. The largest western experience on salvage hepatectomy for recurrent hepatocellular carcinoma: propensity score-matched analysis on behalf of He.RC.O.Le.Study Group

Author

Iaria, M, Bianchi, G, Fazio, F, Ardito, F, Perri, P, Pontarolo, N, Conci, S, Donadon, M, Zanello, M, Lai, Q, Famularo, S, Molfino, S, Sciannamea, I, Fumagalli, L, Germani, P, Floridi, A, Ferrari, C, Zimmitti, G, Troci, A, Zago, M, Ferraro, V, Cipriani, F, Patauner, S, La Barba, G, Romano, M, Zanus, G, Ercolani, G, Frena, A, Aldrighetti, L, Memeo, R, Pinotti, E, Crespi, M, Hilal, M, Griseri, G, Tarchi, P, Chiarelli, M, Antonucci, A, Baiocchi, G, Romano, F, Rossi, M, Jovine, E, Torzilli, G, Ruzzenente, A, Maestri, M, Grazi, G, Giuliante, F, Ferrero, A, Dalla Valle, R, Giuffrida, M, Russolillo, N, Razionale, F, De Peppo, V, Tomasoni, M, Marchitelli, I, Costa, G, Laureiro, Z, Scotti, M, Calcagno, P, Cosola, D, Franceschi, A, Manzoni, A, Pennacchi, L, Montuori, M, Conticchio, M, Ratti, F, Notte, F, Cucchetti, A, Salvador, L, Corleone, P, Garancini, M, Ciulli, C, Iaria M., Bianchi G., Fazio F., Ardito F., Perri P., Pontarolo N., Conci S., Donadon M., Zanello M., Lai Q., Famularo S., Molfino S., Sciannamea I., Fumagalli L., Germani P., Floridi A., Ferrari C., Zimmitti G., Troci A., Zago M., Ferraro V., Cipriani F., Patauner S., La Barba G., Romano M., Zanus G., Ercolani G., Frena A., Aldrighetti L., Memeo R., Pinotti E., Crespi M., Hilal M. A., Griseri G., Tarchi P., Chiarelli M., Antonucci A., Baiocchi G. L., Romano F., Rossi M., Jovine E., Torzilli G., Ruzzenente A., Maestri M., Grazi G. L., Giuliante F., Ferrero A., Dalla Valle R., Giuffrida M., Russolillo N., Razionale F., De Peppo V., Tomasoni M., Marchitelli I., Costa G., Laureiro Z. L., Scotti M., Calcagno P., Cosola D., Franceschi A., Manzoni A., Pennacchi L., Montuori M., Conticchio M., Ratti F., Notte F., Cucchetti A., Salvador L., Corleone P., Garancini M., Ciulli C., Iaria, M, Bianchi, G, Fazio, F, Ardito, F, Perri, P, Pontarolo, N, Conci, S, Donadon, M, Zanello, M, Lai, Q, Famularo, S, Molfino, S, Sciannamea, I, Fumagalli, L, Germani, P, Floridi, A, Ferrari, C, Zimmitti, G, Troci, A, Zago, M, Ferraro, V, Cipriani, F, Patauner, S, La Barba, G, Romano, M, Zanus, G, Ercolani, G, Frena, A, Aldrighetti, L, Memeo, R, Pinotti, E, Crespi, M, Hilal, M, Griseri, G, Tarchi, P, Chiarelli, M, Antonucci, A, Baiocchi, G, Romano, F, Rossi, M, Jovine, E, Torzilli, G, Ruzzenente, A, Maestri, M, Grazi, G, Giuliante, F, Ferrero, A, Dalla Valle, R, Giuffrida, M, Russolillo, N, Razionale, F, De Peppo, V, Tomasoni, M, Marchitelli, I, Costa, G, Laureiro, Z, Scotti, M, Calcagno, P, Cosola, D, Franceschi, A, Manzoni, A, Pennacchi, L, Montuori, M, Conticchio, M, Ratti, F, Notte, F, Cucchetti, A, Salvador, L, Corleone, P, Garancini, M, Ciulli, C, Iaria M., Bianchi G., Fazio F., Ardito F., Perri P., Pontarolo N., Conci S., Donadon M., Zanello M., Lai Q., Famularo S., Molfino S., Sciannamea I., Fumagalli L., Germani P., Floridi A., Ferrari C., Zimmitti G., Troci A., Zago M., Ferraro V., Cipriani F., Patauner S., La Barba G., Romano M., Zanus G., Ercolani G., Frena A., Aldrighetti L., Memeo R., Pinotti E., Crespi M., Hilal M. A., Griseri G., Tarchi P., Chiarelli M., Antonucci A., Baiocchi G. L., Romano F., Rossi M., Jovine E., Torzilli G., Ruzzenente A., Maestri M., Grazi G. L., Giuliante F., Ferrero A., Dalla Valle R., Giuffrida M., Russolillo N., Razionale F., De Peppo V., Tomasoni M., Marchitelli I., Costa G., Laureiro Z. L., Scotti M., Calcagno P., Cosola D., Franceschi A., Manzoni A., Pennacchi L., Montuori M., Conticchio M., Ratti F., Notte F., Cucchetti A., Salvador L., Corleone P., Garancini M., and Ciulli C.

Abstract

Background: We aimed to evaluate, in a large Western cohort, perioperative and long-term oncological outcomes of salvage hepatectomy (SH) for recurrent hepatocellular carcinoma (rHCC) after primary hepatectomy (PH) or locoregional treatments. Methods: Data were collected from the Hepatocarcinoma Recurrence on the Liver Study Group (He.RC.O.Le.S.) Italian Registry. After 1:1 propensity score-matched analysis (PSM), two groups were compared: the PH group (patients submitted to resection for a first HCC) and the SH group (patients resected for intrahepatic rHCC after previous HCC-related treatments). Results: 2689 patients were enrolled. PH included 2339 patients, SH 350. After PSM, 263 patients were selected in each group with major resected nodule median size, intraoperative blood loss and minimally invasive approach significantly lower in the SH group. Long-term outcomes were compared, with no difference in OS and DFS. Univariate and multivariate analyses revealed only microvascular invasion as an independent prognostic factor for OS. Conclusion: SH proved to be equivalent to PH in terms of safety, feasibility and long-term outcomes, consistent with data gathered from East Asia. In the awaiting of reliable treatment-allocating algorithms for rHCC, SH appears to be a suitable alternative in patients fit for surgery, regardless of the previous therapeutic modality implemented.

Published
2022

40. Impact of enhanced recovery protocols after pancreatoduodenectomy: Meta-Analysis

Author

Kuemmerli, C, Tschuor, C, Kasai, M, Alseidi, A, Balzano, G, Bouwense, S, Braga, M, Coolsen, M, Daniel, S, Dervenis, C, Falconi, M, Hwang, D, Kagedan, D, Kim, S, Lavu, H, Liang, T, Nussbaum, D, Partelli, S, Passeri, M, Pecorelli, N, Pillai, S, Pillarisetty, V, Pucci, M, Su, W, Sutcliffe, R, Tingstedt, B, Van Der Kolk, M, Vrochides, D, Wei, A, Yeo, C, Zani, S, Zouros, E, Abu Hilal, M, Kuemmerli C., Tschuor C., Kasai M., Alseidi A. A., Balzano G., Bouwense S., Braga M., Coolsen M., Daniel S. K., Dervenis C., Falconi M., Hwang D. W., Kagedan D. J., Kim S. C., Lavu H., Liang T., Nussbaum D., Partelli S., Passeri M. J., Pecorelli N., Pillai S. A., Pillarisetty V. G., Pucci M. J., Su W., Sutcliffe R. P., Tingstedt B., Van Der Kolk M., Vrochides D., Wei A., Yeo C. J., Zani S., Zouros E., Abu Hilal M., Kuemmerli, C, Tschuor, C, Kasai, M, Alseidi, A, Balzano, G, Bouwense, S, Braga, M, Coolsen, M, Daniel, S, Dervenis, C, Falconi, M, Hwang, D, Kagedan, D, Kim, S, Lavu, H, Liang, T, Nussbaum, D, Partelli, S, Passeri, M, Pecorelli, N, Pillai, S, Pillarisetty, V, Pucci, M, Su, W, Sutcliffe, R, Tingstedt, B, Van Der Kolk, M, Vrochides, D, Wei, A, Yeo, C, Zani, S, Zouros, E, Abu Hilal, M, Kuemmerli C., Tschuor C., Kasai M., Alseidi A. A., Balzano G., Bouwense S., Braga M., Coolsen M., Daniel S. K., Dervenis C., Falconi M., Hwang D. W., Kagedan D. J., Kim S. C., Lavu H., Liang T., Nussbaum D., Partelli S., Passeri M. J., Pecorelli N., Pillai S. A., Pillarisetty V. G., Pucci M. J., Su W., Sutcliffe R. P., Tingstedt B., Van Der Kolk M., Vrochides D., Wei A., Yeo C. J., Zani S., Zouros E., and Abu Hilal M.

Abstract

Background: This individual-patient data meta-Analysis investigated the effects of enhanced recovery after surgery (ERAS) protocols compared with conventional care on postoperative outcomes in patients undergoing pancreatoduodenectomy. Methods: The Cochrane Library, MEDLINE, Embase, Scopus, and Web of Science were searched systematically for articles reporting outcomes of ERAS after pancreatoduodenectomy published up to August 2020. Comparative studies were included. Main outcomes were postoperative functional recovery elements, postoperative morbidity, duration of hospital stay, and readmission. Results: Individual-patient data were obtained from 17 of 31 eligible studies comprising 3108 patients. Time to liquid (mean difference (MD)-3.23 (95 per cent c.i.-4.62 to-1.85) days; P < 0.001) and solid (-3.84 (-5.09 to-2.60) days; P < 0.001) intake, time to passage of first stool (MD-1.38 (-1.82 to-0.94) days; P < 0.001) and time to removal of the nasogastric tube (3.03 (-4.87 to-1.18) days; P = 0.001) were reduced with ERAS. ERAS was associated with lower overall morbidity (risk difference (RD)-0.04, 95 per cent c.i.-0.08 to-0.01; P = 0.015), less delayed gastric emptying (RD-0.11,-0.22 to-0.01; P = 0.039) and a shorter duration of hospital stay (MD-2.33 (-2.98 to-1.69) days; P < 0.001) without a higher readmission rate. Conclusion: ERAS improved postoperative outcome after pancreatoduodenectomy. Implementation should be encouraged.

Published
2022

42. The Accuracy of the Broselow™ Pediatric Emergency Tape for Weight Estimation in an Omani Paediatric Population

Author

Azher A. Al-Busaidi, Lakshmanan Jeyaseelan, and Hilal M. Al-Barwani

Subjects
paediatrics, body weight, body height, emergency medicine, oman., Medicine
Abstract

Objectives: This study aimed to evaluate the accuracy of the Broselow™ Pediatric Emergency Tape (BT) for estimating weight in an Omani paediatric population at a tertiary care hospital. Methods: This retrospective cross-sectional study was conducted during July 2015. The electronic medical records of Omani outpatients

Published
2017
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43. Learning Curves of Minimally Invasive Distal Pancreatectomy in Experienced Pancreatic Centers.

Author

Lof, S., Claassen, L., Hannink, G.J., Al-Sarireh, B., Björnsson, B., Boggi, U., Burdio, F., Butturini, G., Capretti, G., Casadei, R., Dokmak, S., Edwin, B., Esposito, A., Fabre, J.M., Ferrari, G., Fretland, A.A., Ftériche, F.S., Fusai, G.K., Giardino, A., Groot Koerkamp, B., D'Hondt, M., Jah, A., Kamarajah, S.K., Kauffmann, E.F., Keck, T., Laarhoven, S. van, Manzoni, A., Marino, M.V., Marudanayagam, R., Molenaar, I.Q., Pessaux, P., Rosso, E., Salvia, R., Soonawalla, Z., Souche, R., White, S., Workum, F.T.W.E. van, Zerbi, A., Rosman, C., Stommel, M.W.J., Abu Hilal, M., Besselink, M.G., Lof, S., Claassen, L., Hannink, G.J., Al-Sarireh, B., Björnsson, B., Boggi, U., Burdio, F., Butturini, G., Capretti, G., Casadei, R., Dokmak, S., Edwin, B., Esposito, A., Fabre, J.M., Ferrari, G., Fretland, A.A., Ftériche, F.S., Fusai, G.K., Giardino, A., Groot Koerkamp, B., D'Hondt, M., Jah, A., Kamarajah, S.K., Kauffmann, E.F., Keck, T., Laarhoven, S. van, Manzoni, A., Marino, M.V., Marudanayagam, R., Molenaar, I.Q., Pessaux, P., Rosso, E., Salvia, R., Soonawalla, Z., Souche, R., White, S., Workum, F.T.W.E. van, Zerbi, A., Rosman, C., Stommel, M.W.J., Abu Hilal, M., and Besselink, M.G.

Abstract

Contains fulltext : 296536.pdf (Publisher’s version ) (Closed access), IMPORTANCE: Understanding the learning curve of a new complex surgical technique helps to reduce potential patient harm. Current series on the learning curve of minimally invasive distal pancreatectomy (MIDP) are mostly small, single-center series, thus providing limited data. OBJECTIVE: To evaluate the length of pooled learning curves of MIDP in experienced centers. DESIGN, SETTING, AND PARTICIPANTS: This international, multicenter, retrospective cohort study included MIDP procedures performed from January 1, 2006, through June 30, 2019, in 26 European centers from 8 countries that each performed more than 15 distal pancreatectomies annually, with an overall experience exceeding 50 MIDP procedures. Consecutive patients who underwent elective laparoscopic or robotic distal pancreatectomy for all indications were included. Data were analyzed between September 1, 2021, and May 1, 2022. EXPOSURES: The learning curve for MIDP was estimated by pooling data from all centers. MAIN OUTCOMES AND MEASURES: The learning curve was assessed for the primary textbook outcome (TBO), which is a composite measure that reflects optimal outcome, and for surgical mastery. Generalized additive models and a 2-piece linear model with a break point were used to estimate the learning curve length of MIDP. Case mix-expected probabilities were plotted and compared with observed outcomes to assess the association of changing case mix with outcomes. The learning curve also was assessed for the secondary outcomes of operation time, intraoperative blood loss, conversion to open rate, and postoperative pancreatic fistula grade B/C. RESULTS: From a total of 2610 MIDP procedures, the learning curve analysis was conducted on 2041 procedures (mean [SD] patient age, 58 [15.3] years; among 2040 with reported sex, 1249 were female [61.2%] and 791 male [38.8%]). The 2-piece model showed an increase and eventually a break point for TBO at 85 procedures (95% CI, 13-157 procedures), with a plateau TBO rate at

Published
2023

44. The Feasibility, Proficiency, and Mastery Learning Curves in 635 Robotic Pancreatoduodenectomies Following A Multicenter Training Program: 'Standing on the Shoulders of Giants'

Author

Zwart, Maurice J W, van den Broek, Bram, de Graaf, Nine, Suurmeijer, J Annelie, Augustinus, Simone, Te Riele, Wouter W, van Santvoort, Hjalmar C, Hagendoorn, Jeroen, Borel Rinkes, Inne H M, van Dam, Jacob L, Takagi, Kosei, Tran, T C Khé, Schreinemakers, Jennifer, van der Schelling, George, Wijsman, Jan H, de Wilde, Roeland F, Festen, Sebastiaan, Daams, Freek, Luyer, Misha D, de Hingh, Ignace H J T, Mieog, J Sven D, Bonsing, Bert A, Lips, Daan J, Hilal, M Abu, Busch, Olivier R, Saint-Marc, Olivier, Zeh, Herbert J, Zureikat, Amer H, Hogg, Melissa E, Koerkamp, Bas Groot, Molenaar, I Quintus, Besselink, Marc G, Zwart, Maurice J W, van den Broek, Bram, de Graaf, Nine, Suurmeijer, J Annelie, Augustinus, Simone, Te Riele, Wouter W, van Santvoort, Hjalmar C, Hagendoorn, Jeroen, Borel Rinkes, Inne H M, van Dam, Jacob L, Takagi, Kosei, Tran, T C Khé, Schreinemakers, Jennifer, van der Schelling, George, Wijsman, Jan H, de Wilde, Roeland F, Festen, Sebastiaan, Daams, Freek, Luyer, Misha D, de Hingh, Ignace H J T, Mieog, J Sven D, Bonsing, Bert A, Lips, Daan J, Hilal, M Abu, Busch, Olivier R, Saint-Marc, Olivier, Zeh, Herbert J, Zureikat, Amer H, Hogg, Melissa E, Koerkamp, Bas Groot, Molenaar, I Quintus, and Besselink, Marc G

Abstract

OBJECTIVE: To assess the feasibility, proficiency, and mastery learning curves for robotic pancreatoduodenectomy (RPD) in "second-generation" RPD centers following a multicenter training program adhering to the IDEAL framework. BACKGROUND: The long learning curves for RPD reported from "pioneering" expert centers may discourage centers interested in starting an RPD program. However, the feasibility, proficiency, and mastery learning curves may be shorter in "second-generation" centers that participated in dedicated RPD training programs, although data are lacking. We report on the learning curves for RPD in "second-generation" centers trained in a dedicated nationwide program. METHODS: Post hoc analysis of all consecutive patients undergoing RPD in 7 centers that participated in the LAELAPS-3 training program, each with a minimum annual volume of 50 pancreatoduodenectomies, using the mandatory Dutch Pancreatic Cancer Audit (March 2016-December 2021). Cumulative sum analysis determined cutoffs for the 3 learning curves: operative time for the feasibility (1) risk-adjusted major complication (Clavien-Dindo grade ≥III) for the proficiency, (2) and textbook outcome for the mastery, (3) learning curve. Outcomes before and after the cutoffs were compared for the proficiency and mastery learning curves. A survey was used to assess changes in practice and the most valued "lessons learned." RESULTS: Overall, 635 RPD were performed by 17 trained surgeons, with a conversion rate of 6.6% (n=42). The median annual volume of RPD per center was 22.5±6.8. From 2016 to 2021, the nationwide annual use of RPD increased from 0% to 23% whereas the use of laparoscopic pancreatoduodenectomy decreased from 15% to 0%. The rate of major complications was 36.9% (n=234), surgical site infection 6.3% (n=40), postoperative pancreatic fistula (grade B/C) 26.9% (n=171), and 30-day/in-hospital mortality 3.5% (n=22). Cutoffs for the feasibility, proficiency, and mastery learning curves were reach

Published
2023

45. Prospective minimally invasive pancreatic resections from the IGOMIPS registry: a snapshot of daily practice in Italy on 1191 between 2019 and 2022

Author

Boggi, U., Donisi, G., Napoli, N., Partelli, S., Esposito, A., Ferrari, G., Butturini, G., Morelli, L., Abu Hilal, M., Viola, M., Di Benedetto, F., Troisi, R., Vivarelli, M., Jovine, E., Ferrero, A., Bracale, U., Alfieri, Sergio, Casadei, R., Ercolani, G., Moraldi, L., Molino, C., Dalla Valle, R., Ettorre, G., Memeo, R., Zanus, G., Belli, A., Gruttadauria, S., Brolese, A., Coratti, A., Garulli, G., Romagnoli, R., Massani, M., Borghi, F., Belli, G., Coppola, R., Falconi, M., Salvia, R., Zerbi, A., Kauffmann, E. F., Capretti, G., Genova, L., Matteo, P., Mazzola, M., Giardino, A., Palmieri, M., Manzoni, A., Barbieri, V., Ballarin, R., Rompianesi, G., Rossi, R., Mastrangelo, L., Langella, S., Ilardi, M., Menghi, Roberta, Ricci, C., Gardini, A., Campra, D., Crolla, E., Cecconi, S., Meniconi, R. L., Ferraro, V., Brizzolari, M., Izzo, F., Cintorino, D., Marcucci, S., Giuliani, G., Veneroni, L., Moro, F., Nistri, C., Caputo, D., Gianluca, B., Mazzaferro, V., Alfieri S. (ORCID:0000-0002-0404-724X), Menghi R., Boggi, U., Donisi, G., Napoli, N., Partelli, S., Esposito, A., Ferrari, G., Butturini, G., Morelli, L., Abu Hilal, M., Viola, M., Di Benedetto, F., Troisi, R., Vivarelli, M., Jovine, E., Ferrero, A., Bracale, U., Alfieri, Sergio, Casadei, R., Ercolani, G., Moraldi, L., Molino, C., Dalla Valle, R., Ettorre, G., Memeo, R., Zanus, G., Belli, A., Gruttadauria, S., Brolese, A., Coratti, A., Garulli, G., Romagnoli, R., Massani, M., Borghi, F., Belli, G., Coppola, R., Falconi, M., Salvia, R., Zerbi, A., Kauffmann, E. F., Capretti, G., Genova, L., Matteo, P., Mazzola, M., Giardino, A., Palmieri, M., Manzoni, A., Barbieri, V., Ballarin, R., Rompianesi, G., Rossi, R., Mastrangelo, L., Langella, S., Ilardi, M., Menghi, Roberta, Ricci, C., Gardini, A., Campra, D., Crolla, E., Cecconi, S., Meniconi, R. L., Ferraro, V., Brizzolari, M., Izzo, F., Cintorino, D., Marcucci, S., Giuliani, G., Veneroni, L., Moro, F., Nistri, C., Caputo, D., Gianluca, B., Mazzaferro, V., Alfieri S. (ORCID:0000-0002-0404-724X), and Menghi R.

Abstract

This retrospective analysis of the prospective IGOMIPS registry reports on 1191 minimally invasive pancreatic resections (MIPR) performed in Italy between 2019 and 2022, including 668 distal pancreatectomies (DP) (55.7%), 435 pancreatoduodenectomies (PD) (36.3%), 44 total pancreatectomies (3.7%), 36 tumor enucleations (3.0%), and 8 central pancreatectomies (0.7%). Spleen-preserving DP was performed in 109 patients (16.3%). Overall incidence of severe complications (Clavien-Dindo & GE; 3) was 17.6% with a 90-day mortality of 1.9%. This registry analysis provided some important information. First, robotic assistance was preferred for all MIPR but DP with splenectomy. Second, robotic assistance reduced conversion to open surgery and blood loss in comparison to laparoscopy. Robotic PD was also associated with lower incidence of severe postoperative complications and a trend toward lower mortality. Fourth, the annual cut-off of & GE; 20 MIPR and & GE; 20 MIPD improved selected outcome measures. Fifth, most MIPR were performed by a single surgeon. Sixth, only two-thirds of the centers performed spleen-preserving DP. Seventh, DP with splenectomy was associated with higher conversion rate when compared to spleen-preserving DP. Eighth, the use of pancreatojejunostomy was the prevalent reconstruction in PD. Ninth, final histology was similar for MIPR performed at high- and low-volume centers, but neoadjuvant chemotherapy was used more frequently at high-volume centers. Finally, this registry analysis raises important concerns about the reliability of R1 assessment underscoring the importance of standardized pathology of pancreatic specimens. In conclusion, MIPR can be safely implemented on a national scale. Further analyses are required to understand nuances of implementation of MIPR in Italy.

Published
2023

46. The Effect of a Liver Transplant Program on the Outcomes of Resectable Hepatocellular Carcinoma: A Nationwide Multicenter Analysis

Author

Serenari, M., Lenzi, J., Cucchetti, A., Cipriani, F., Donadon, M., Ardito, Francesco, Fazio, F., Nicolini, D., Iaria, M., Famularo, S., Perri, P., Ansaloni, L., Zanello, M., Lai, Q., Conci, S., Molfino, S., Ferrari, C., Germani, P., Zago, M., Romano, M., Zimmitti, G., Antonucci, A., Fumagalli, L., Troci, A., Ferraro, V., Memeo, R., Crespi, M., Chiarelli, M., Ercolani, G., Hilal, M. A., Zanus, G., Pinotti, E., Tarchi, P., Griseri, G., Baiocchi, G. L., Ruzzenente, A., Rossi, M., Jovine, E., Maestri, M., Grazi, G. L., Romano, F., Dalla Valle, R., Ravaioli, M., Vivarelli, M., Ferrero, A., Giuliante, Felice, Torzilli, G., Aldrighetti, L., Cescon, M., Gorgone, M., Ratti, F., Costa, G., Razionale, Francesco, Russolillo, N., Marinelli, Luca, Giuffrida, M., Scotti, M., Garancini, M., De Peppo, V., De Stefano, F., Laureiro, Z. L., Marchitelli, I., Franceschi, A., Cosola, D., Corleone, P., Montuori, M., Salvador, L., Manzoni, Annamaria, La Barba, G., Calcagno, P., Pennacchi, L., Conticchio, M., Ardito F. (ORCID:0000-0003-1596-2862), Giuliante F. (ORCID:0000-0001-9517-8220), Razionale F., Marinelli L., Manzoni A., Serenari, M., Lenzi, J., Cucchetti, A., Cipriani, F., Donadon, M., Ardito, Francesco, Fazio, F., Nicolini, D., Iaria, M., Famularo, S., Perri, P., Ansaloni, L., Zanello, M., Lai, Q., Conci, S., Molfino, S., Ferrari, C., Germani, P., Zago, M., Romano, M., Zimmitti, G., Antonucci, A., Fumagalli, L., Troci, A., Ferraro, V., Memeo, R., Crespi, M., Chiarelli, M., Ercolani, G., Hilal, M. A., Zanus, G., Pinotti, E., Tarchi, P., Griseri, G., Baiocchi, G. L., Ruzzenente, A., Rossi, M., Jovine, E., Maestri, M., Grazi, G. L., Romano, F., Dalla Valle, R., Ravaioli, M., Vivarelli, M., Ferrero, A., Giuliante, Felice, Torzilli, G., Aldrighetti, L., Cescon, M., Gorgone, M., Ratti, F., Costa, G., Razionale, Francesco, Russolillo, N., Marinelli, Luca, Giuffrida, M., Scotti, M., Garancini, M., De Peppo, V., De Stefano, F., Laureiro, Z. L., Marchitelli, I., Franceschi, A., Cosola, D., Corleone, P., Montuori, M., Salvador, L., Manzoni, Annamaria, La Barba, G., Calcagno, P., Pennacchi, L., Conticchio, M., Ardito F. (ORCID:0000-0003-1596-2862), Giuliante F. (ORCID:0000-0001-9517-8220), Razionale F., Marinelli L., and Manzoni A.

Abstract

Objective: To evaluate the effect of a liver transplantation (LT) program on the outcomes of resectable hepatocellular carcinoma (HCC). Background: Surgical treatment of HCC includes both hepatic resection (HR) and LT. However, the presence of cirrhosis and the possibility of recurrence make the management of this disease complex and probably different according to the presence of a LT program. Methods: Patients undergoing HR for HCC between January 2005 and December 2019 were identified from a national database of HCC. The main study outcomes were major surgical complications according to the Comprehensive Complication Index, posthepatectomy liver failure (PHLF), 90-day mortality, overall survival, and disease-free survival. Secondary outcomes were salvage liver transplantation (SLT) and postrecurrence survival. Results: A total of 3202 patients were included from 25 hospitals over the study period. Three of 25 (12%) had an LT program. The presence of an LT program within a center was associated with a reduced probability of PHLF (odds ratio=0.38) but not with overall survival and disease-free survival. There was an increased probability of SLT when HR was performed in a transplant hospital (odds ratio=12.05). Among transplant-eligible patients, those who underwent LT had a significantly longer postrecurrence survival. Conclusions: This study showed that the presence of a LT program was associated with decreased PHLF rates and an increased probability to receive SLT in case of recurrence.

Published
2023

47. Impact of neoadjuvant chemotherapy on the difficulty and outcomes of laparoscopic and robotic major liver resections for colorectal liver metastases: A propensity-score and coarsened exact-matched controlled study

Author

Ghotbi, J., Aghayan, D., Fretland, A., Edwin, B., Syn, N. L., Cipriani, F., Alzoubi, M., Lim, C., Scatton, O., Long, T. C. D., Herman, P., Coelho, F. F., Marino, M. V., Mazzaferro, V., Chiow, A. K. H., Sucandy, I., Ivanecz, A., Choi, S. -H., Lee, J. H., Prieto, M., Vivarelli, M., Giuliante, Felice, Ruzzenente, A., Yong, C. -C., Yin, M., Fondevila, C., Efanov, M., Morise, Z., Di Benedetto, F., Brustia, R., Dalla Valle, R., Boggi, U., Geller, D., Belli, A., Memeo, R., Mejia, A., Park, J. O., Rotellar, F., Choi, G. -H., Robles-Campos, R., Wang, X., Sutcliffe, R. P., Pratschke, J., Tang, C. -N., Chong, C. C. N., D'Hondt, M., Monden, K., Lopez-Ben, S., Kingham, T. P., Ferrero, A., Ettorre, G. M., Levi Sandri, G. B., Pascual, F., Cherqui, D., Liang, X., Mazzotta, A., Wakabayashi, G., Giglio, M., Troisi, R. I., Han, H. -S., Cheung, T. -T., Sugioka, A., Chen, K. -H., Liu, R., Soubrane, O., Fuks, D., Aldrighetti, L., Abu Hilal, M., Goh, B. K. P., Gastaca, M., Meurs, J., De Meyere, C., Lee, K. -F., Ng, K. K., Salimgereeva, D., Alikhanov, R., Lee, L. -S., Jang, J. Y., Kato, Y., Kojima, M., Pirola Kruger, J. A., Lopez-Lopez, V., Casellas I Robert, M., Montalti, R., Lee, B., D'Silva, M., Wang, H. -P., Saleh, M., Chen, Z., Yu, S., Vani, S., Ardito, Francesco, Giustizieri, U., Citterio, D., Mocchegiani, F., Colasanti, M., Guzman, Y., Labadie, K. P., Conticchio, M., Dogeas, E., Kauffmann, E. F., Giuffrida, M., Sommacale, D., Laurent, A., Magistri, P., Nghia, P. P., Mishima, K., Valle, B. D., Krenzien, F., Schmelzle, M., Kadam, P., Liu, Q., Lai, E. C. H., Zheng, J., Siow, T. F., Forchino, F., Giuliante F. (ORCID:0000-0001-9517-8220), Ardito F. (ORCID:0000-0003-1596-2862), Ghotbi, J., Aghayan, D., Fretland, A., Edwin, B., Syn, N. L., Cipriani, F., Alzoubi, M., Lim, C., Scatton, O., Long, T. C. D., Herman, P., Coelho, F. F., Marino, M. V., Mazzaferro, V., Chiow, A. K. H., Sucandy, I., Ivanecz, A., Choi, S. -H., Lee, J. H., Prieto, M., Vivarelli, M., Giuliante, Felice, Ruzzenente, A., Yong, C. -C., Yin, M., Fondevila, C., Efanov, M., Morise, Z., Di Benedetto, F., Brustia, R., Dalla Valle, R., Boggi, U., Geller, D., Belli, A., Memeo, R., Mejia, A., Park, J. O., Rotellar, F., Choi, G. -H., Robles-Campos, R., Wang, X., Sutcliffe, R. P., Pratschke, J., Tang, C. -N., Chong, C. C. N., D'Hondt, M., Monden, K., Lopez-Ben, S., Kingham, T. P., Ferrero, A., Ettorre, G. M., Levi Sandri, G. B., Pascual, F., Cherqui, D., Liang, X., Mazzotta, A., Wakabayashi, G., Giglio, M., Troisi, R. I., Han, H. -S., Cheung, T. -T., Sugioka, A., Chen, K. -H., Liu, R., Soubrane, O., Fuks, D., Aldrighetti, L., Abu Hilal, M., Goh, B. K. P., Gastaca, M., Meurs, J., De Meyere, C., Lee, K. -F., Ng, K. K., Salimgereeva, D., Alikhanov, R., Lee, L. -S., Jang, J. Y., Kato, Y., Kojima, M., Pirola Kruger, J. A., Lopez-Lopez, V., Casellas I Robert, M., Montalti, R., Lee, B., D'Silva, M., Wang, H. -P., Saleh, M., Chen, Z., Yu, S., Vani, S., Ardito, Francesco, Giustizieri, U., Citterio, D., Mocchegiani, F., Colasanti, M., Guzman, Y., Labadie, K. P., Conticchio, M., Dogeas, E., Kauffmann, E. F., Giuffrida, M., Sommacale, D., Laurent, A., Magistri, P., Nghia, P. P., Mishima, K., Valle, B. D., Krenzien, F., Schmelzle, M., Kadam, P., Liu, Q., Lai, E. C. H., Zheng, J., Siow, T. F., Forchino, F., Giuliante F. (ORCID:0000-0001-9517-8220), and Ardito F. (ORCID:0000-0003-1596-2862)

Abstract

Background: Minimal invasive liver resections are a safe alternative to open surgery. Different scoring systems considering different risks factors have been developed to predict the risks associated with these procedures, especially challenging major liver resections (MLR). However, the impact of neoadjuvant chemotherapy (NAT) on the difficulty of minimally invasive MLRs remains poorly investigated. Methods: Patients who underwent laparoscopic and robotic MLRs for colorectal liver metastases (CRLM) performed across 57 centers between January 2005 to December 2021 were included in this analysis. Patients who did or did not receive NAT were matched based on 1:1 coarsened exact and 1:2 propensity-score matching. Pre- and post-matching comparisons were performed. Results: In total, the data of 5189 patients were reviewed. Of these, 1411 procedures were performed for CRLM, and 1061 cases met the inclusion criteria. After excluding 27 cases with missing data on NAT, 1034 patients (NAT: n = 641; non-NAT: n = 393) were included. Before matching, baseline characteristics were vastly different. Before matching, the morbidity rate was significantly higher in the NAT-group (33.2% vs. 27.2%, p-value = 0.043). No significant differences were seen in perioperative outcomes after the coarsened exact matching. After the propensity-score matching, statistically significant higher blood loss (mean, 300 (SD 128–596) vs. 250 (SD 100–400) ml, p-value = 0.047) but shorter hospital stay (mean, 6 [4-8] vs. 6 [5-9] days, p-value = 0.043) were found in the NAT-group. Conclusion: The current study demonstrated that NAT had minimal impact on the difficulty and outcomes of minimally-invasive MLR for CRLM.

Published
2023

48. Defining Global Benchmarks for Laparoscopic Liver Resections: An International Multicenter Study

Author

Goh, B. K. P., Han, H. -S., Chen, K. -H., Chua, D. W., Chan, C. -Y., Cipriani, F., Aghayan, D. L., Fretland, A. A., Sijberden, J., D'Silva, M., Siow, T. F., Kato, Y., Lim, C., Nghia, P. P., Herman, P., Marino, M. V., Mazzaferro, V., Chiow, A. K. H., Sucandy, I., Ivanecz, A., Choi, S. H., Lee, J. H., Gastaca, M., Vivarelli, M., Giuliante, Felice, Ruzzenente, A., Yong, C. -C., Yin, M., Chen, Z., Fondevila, C., Efanov, M., Rotellar, F., Choi, G. -H., Campos, R. R., Wang, X., Sutcliffe, R. P., Pratschke, J., Lai, E., Chong, C. C., D'Hondt, M., Monden, K., Lopez-Ben, S., Coelho, F. F., Kingham, T. P., Liu, R., Long, T. C. D., Ferrero, A., Sandri, G. B. L., Saleh, M., Cherqui, D., Scatton, O., Soubrane, O., Wakabayashi, G., Troisi, R. I., Cheung, T. -T., Sugioka, A., Hilal, M. A., Fuks, D., Edwin, B., Aldrighetti, L., Syn, N., Prieto, M., Schotte, H., De Meyere, C., Krenzien, F., Schmelzle, M., Lee, K. -F., Salimgereeva, D., Alikhanov, R., Lee, L. -S., Jang, J. Y., Kojima, M., Ghotbi, J., Kruger, J. A. P., Lopez-Lopez, V., Valle, B. D., Casellas I Robert, M., Mishima, K., Montalti, R., Giglio, M., Mazzotta, A., Lee, B., Wang, H. -P., Pascual, F., Kadam, P., Tang, C. -N., Yu, S., Ardito, Francesco, Vani, S., Giustizieri, U., Citterio, D., Mocchegiani, F., Ettorre, G. M., Colasanti, M., Guzman, Y., Giuliante F. (ORCID:0000-0001-9517-8220), Ardito F. (ORCID:0000-0003-1596-2862), Goh, B. K. P., Han, H. -S., Chen, K. -H., Chua, D. W., Chan, C. -Y., Cipriani, F., Aghayan, D. L., Fretland, A. A., Sijberden, J., D'Silva, M., Siow, T. F., Kato, Y., Lim, C., Nghia, P. P., Herman, P., Marino, M. V., Mazzaferro, V., Chiow, A. K. H., Sucandy, I., Ivanecz, A., Choi, S. H., Lee, J. H., Gastaca, M., Vivarelli, M., Giuliante, Felice, Ruzzenente, A., Yong, C. -C., Yin, M., Chen, Z., Fondevila, C., Efanov, M., Rotellar, F., Choi, G. -H., Campos, R. R., Wang, X., Sutcliffe, R. P., Pratschke, J., Lai, E., Chong, C. C., D'Hondt, M., Monden, K., Lopez-Ben, S., Coelho, F. F., Kingham, T. P., Liu, R., Long, T. C. D., Ferrero, A., Sandri, G. B. L., Saleh, M., Cherqui, D., Scatton, O., Soubrane, O., Wakabayashi, G., Troisi, R. I., Cheung, T. -T., Sugioka, A., Hilal, M. A., Fuks, D., Edwin, B., Aldrighetti, L., Syn, N., Prieto, M., Schotte, H., De Meyere, C., Krenzien, F., Schmelzle, M., Lee, K. -F., Salimgereeva, D., Alikhanov, R., Lee, L. -S., Jang, J. Y., Kojima, M., Ghotbi, J., Kruger, J. A. P., Lopez-Lopez, V., Valle, B. D., Casellas I Robert, M., Mishima, K., Montalti, R., Giglio, M., Mazzotta, A., Lee, B., Wang, H. -P., Pascual, F., Kadam, P., Tang, C. -N., Yu, S., Ardito, Francesco, Vani, S., Giustizieri, U., Citterio, D., Mocchegiani, F., Ettorre, G. M., Colasanti, M., Guzman, Y., Giuliante F. (ORCID:0000-0001-9517-8220), and Ardito F. (ORCID:0000-0003-1596-2862)

Abstract

Objective: To establish global benchmark outcomes indicators after laparoscopic liver resections (L-LR). Background: There is limited published data to date on the best achievable outcomes after L-LR. Methods: This is a post hoc analysis of a multicenter database of 11,983 patients undergoing L-LR in 45 international centers in 4 continents between 2015 and 2020. Three specific procedures: left lateral sectionectomy (LLS), left hepatectomy (LH), and right hepatectomy (RH) were selected to represent the 3 difficulty levels of L-LR. Fifteen outcome indicators were selected to establish benchmark cutoffs. Results: There were 3519 L-LR (LLS, LH, RH) of which 1258 L-LR (40.6%) cases performed in 34 benchmark expert centers qualified as low-risk benchmark cases. These included 659 LLS (52.4%), 306 LH (24.3%), and 293 RH (23.3%). The benchmark outcomes established for operation time, open conversion rate, blood loss ≥500 mL, blood transfusion rate, postoperative morbidity, major morbidity, and 90-day mortality after LLS, LH, and RH were 209.5, 302, and 426 minutes; 2.1%, 13.4%, and 13.0%; 3.2%, 20%, and 47.1%; 0%, 7.1%, and 10.5%; 11.1%, 20%, and 50%; 0%, 7.1%, and 20%; and 0%, 0%, and 0%, respectively. Conclusions: This study established the first global benchmark outcomes for L-LR in a large-scale international patient cohort. It provides an up-to-date reference regarding the "best achievable" results for L-LR for which centers adopting L-LR can use as a comparison to enable an objective assessment of performance gaps and learning curves.

Published
2023

49. Machine Learning Predictive Model to Guide Treatment Allocation for Recurrent Hepatocellular Carcinoma After Surgery

Author

Famularo, S., Donadon, M., Cipriani, F., Fazio, F., Ardito, Francesco, Iaria, M., Perri, P., Conci, S., Dominioni, T., Lai, Q., La Barba, G., Patauner, S., Molfino, S., Germani, P., Zimmitti, G., Pinotti, E., Zanello, M., Fumagalli, L., Ferrari, C., Romano, M., Delvecchio, A., Valsecchi, M. G., Antonucci, A., Piscaglia, F., Farinati, F., Kawaguchi, Y., Hasegawa, K., Memeo, R., Zanus, G., Griseri, G., Chiarelli, M., Jovine, E., Zago, M., Abu Hilal, M., Tarchi, P., Baiocchi, G. L., Frena, A., Ercolani, G., Rossi, M., Maestri, M., Ruzzenente, A., Grazi, G. L., Dalla Valle, R., Romano, F., Giuliante, Felice, Ferrero, A., Aldrighetti, L., Bernasconi, D. P., Torzilli, G., Ardito F. (ORCID:0000-0003-1596-2862), Giuliante F. (ORCID:0000-0001-9517-8220), Famularo, S., Donadon, M., Cipriani, F., Fazio, F., Ardito, Francesco, Iaria, M., Perri, P., Conci, S., Dominioni, T., Lai, Q., La Barba, G., Patauner, S., Molfino, S., Germani, P., Zimmitti, G., Pinotti, E., Zanello, M., Fumagalli, L., Ferrari, C., Romano, M., Delvecchio, A., Valsecchi, M. G., Antonucci, A., Piscaglia, F., Farinati, F., Kawaguchi, Y., Hasegawa, K., Memeo, R., Zanus, G., Griseri, G., Chiarelli, M., Jovine, E., Zago, M., Abu Hilal, M., Tarchi, P., Baiocchi, G. L., Frena, A., Ercolani, G., Rossi, M., Maestri, M., Ruzzenente, A., Grazi, G. L., Dalla Valle, R., Romano, F., Giuliante, Felice, Ferrero, A., Aldrighetti, L., Bernasconi, D. P., Torzilli, G., Ardito F. (ORCID:0000-0003-1596-2862), and Giuliante F. (ORCID:0000-0001-9517-8220)

Abstract

Importance: Clear indications on how to select retreatments for recurrent hepatocellular carcinoma (HCC) are still lacking. Objective: To create a machine learning predictive model of survival after HCC recurrence to allocate patients to their best potential treatment. Design, Setting, and Participants: Real-life data were obtained from an Italian registry of hepatocellular carcinoma between January 2008 and December 2019 after a median (IQR) follow-up of 27 (12-51) months. External validation was made on data derived by another Italian cohort and a Japanese cohort. Patients who experienced a recurrent HCC after a first surgical approach were included. Patients were profiled, and factors predicting survival after recurrence under different treatments that acted also as treatment effect modifiers were assessed. The model was then fitted individually to identify the best potential treatment. Analysis took place between January and April 2021. Exposures: Patients were enrolled if treated by reoperative hepatectomy or thermoablation, chemoembolization, or sorafenib. Main Outcomes and Measures: Survival after recurrence was the end point. Results: A total of 701 patients with recurrent HCC were enrolled (mean [SD] age, 71 [9] years; 151 [21.5%] female). Of those, 293 patients (41.8%) received reoperative hepatectomy or thermoablation, 188 (26.8%) received sorafenib, and 220 (31.4%) received chemoembolization. Treatment, age, cirrhosis, number, size, and lobar localization of the recurrent nodules, extrahepatic spread, and time to recurrence were all treatment effect modifiers and survival after recurrence predictors. The area under the receiver operating characteristic curve of the predictive model was 78.5% (95% CI, 71.7%-85.3%) at 5 years after recurrence. According to the model, 611 patients (87.2%) would have benefited from reoperative hepatectomy or thermoablation, 37 (5.2%) from sorafenib, and 53 (7.6%) from chemoembolization in terms of potential survival after re

Published
2023

50. Comparison between the difficulty of laparoscopic limited liver resections of tumors located in segment 7 versus segment 8: An international multicenter propensity-score matched study

Author

Efanov, M., Salimgereeva, D., Alikhanov, R., Wu, A. G. R., Geller, D., Cipriani, F., Aghayan, D. L., Fretland, A. A., Sijberden, J., Belli, A., Marino, M. V., Mazzaferro, V., Chiow, A. K. H., Sucandy, I., Ivanecz, A., Choi, S. H., Lee, J. H., Prieto, M., Vivarelli, M., Giuliante, Felice, Ruzzenente, A., Yong, C. -C., Fondevila, C., Rotellar, F., Choi, G. -H., Robless Campos, R., Wang, X., Sutcliffe, R. P., Pratschke, J., Lai, E., Chong, C. C., D'Hondt, M., Monden, K., Lopez-Ben, S., Herman, P., Di Benedetto, F., Kingham, T. P., Liu, R., Long, T. C. D., Ferrero, A., Levi Sandri, G. B., Cherqui, D., Scatton, O., Wakabayashi, G., Troisi, R. I., Cheung, T. -T., Sugioka, A., Han, H. -S., Abu Hilal, M., Soubrane, O., Fuks, D., Aldrighetti, L., Edwin, B., Goh, B. K. P., Chan, C. -Y., Syn, N., D'Silva, M., Lee, B., Lim, C., Nghia, P. P., Gastaca, M., Schotte, H., De Meyere, C., Krenzien, F., Schmelzle, M., Lee, K. -F., Lee, L. S., Jang, J. Y., Kojima, M., Kato, Y., Ghotbi, J., Kruger, J. A. P., Coelho, F. F., Lopez-Lopez, V., Valle, B. D., Robert, M. C. I., Mishima, K., Montalti, R., Giglio, M., Wang, H. -P., Pascual, F., Saleh, M., Kadam, P., Tang, C. -N., Ardito, Francesco, Vani, S., Giustizieri, U., Citterio, D., Mocchegiani, F., Ettorre, G. M., Colasanti, M., Guzman, Y., Dogeas, E., Magistri, P., Mazzotta, A., Giuliante F. (ORCID:0000-0001-9517-8220), Ardito F. (ORCID:0000-0003-1596-2862), Efanov, M., Salimgereeva, D., Alikhanov, R., Wu, A. G. R., Geller, D., Cipriani, F., Aghayan, D. L., Fretland, A. A., Sijberden, J., Belli, A., Marino, M. V., Mazzaferro, V., Chiow, A. K. H., Sucandy, I., Ivanecz, A., Choi, S. H., Lee, J. H., Prieto, M., Vivarelli, M., Giuliante, Felice, Ruzzenente, A., Yong, C. -C., Fondevila, C., Rotellar, F., Choi, G. -H., Robless Campos, R., Wang, X., Sutcliffe, R. P., Pratschke, J., Lai, E., Chong, C. C., D'Hondt, M., Monden, K., Lopez-Ben, S., Herman, P., Di Benedetto, F., Kingham, T. P., Liu, R., Long, T. C. D., Ferrero, A., Levi Sandri, G. B., Cherqui, D., Scatton, O., Wakabayashi, G., Troisi, R. I., Cheung, T. -T., Sugioka, A., Han, H. -S., Abu Hilal, M., Soubrane, O., Fuks, D., Aldrighetti, L., Edwin, B., Goh, B. K. P., Chan, C. -Y., Syn, N., D'Silva, M., Lee, B., Lim, C., Nghia, P. P., Gastaca, M., Schotte, H., De Meyere, C., Krenzien, F., Schmelzle, M., Lee, K. -F., Lee, L. S., Jang, J. Y., Kojima, M., Kato, Y., Ghotbi, J., Kruger, J. A. P., Coelho, F. F., Lopez-Lopez, V., Valle, B. D., Robert, M. C. I., Mishima, K., Montalti, R., Giglio, M., Wang, H. -P., Pascual, F., Saleh, M., Kadam, P., Tang, C. -N., Ardito, Francesco, Vani, S., Giustizieri, U., Citterio, D., Mocchegiani, F., Ettorre, G. M., Colasanti, M., Guzman, Y., Dogeas, E., Magistri, P., Mazzotta, A., Giuliante F. (ORCID:0000-0001-9517-8220), and Ardito F. (ORCID:0000-0003-1596-2862)

Abstract

Background: Presently, according to different difficulty scoring systems, there is no difference in complexity estimation of laparoscopic liver resection (LLR) of segments 7 and 8. However, there is no published data supporting this assumption. To date, no studies have compared the outcomes of laparoscopic parenchyma-sparing resection of the liver segments 7 and 8. Methods: A post hoc analysis of patients undergoing LLR of segments 7 and 8 in 46 centers between 2004 and 2020 was performed. 1:1 Propensity score matching (PSM) was used to compare isolated LLR of segments 7 and 8. Subset analyses were also performed to compare atypical resections and segmentectomies of 7 and 8. Results: A total of 2411 patients were identified, and 1691 patients met the inclusion criteria. Comparison after PSM between the entire cohort of segment 7 and segment 8 resections revealed inferior results for segment 7 resection in terms of increased blood loss, blood transfusions, and conversions to open surgery. Subset analyses of only atypical resections similarly demonstrated poorer outcomes for segment 7 in terms of increased blood loss, operation time, blood transfusions, and conversions to open surgery. Conversely, a subgroup analysis of segmentectomies after PSM found better outcomes for segment 7 in terms of a shorter operation time and hospital stay. Conclusion: Differences in the outcomes of segments 7 and 8 resections suggest a greater difficulty of laparoscopic atypical resection of segment 7 compared to segment 8, and greater difficulty of segmentectomy 8 compared to segmentectomy 7.

Published
2023

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