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27 results on '"Arain, Salman"'

2. Nationwide Outcomes following Percutaneous Cholecystostomy for Acute Calculous Cholecystitis and the Impact of Coronavirus Disease 2019: Results of the Multicentre Audit of Cholecystostomy and Further Interventions (MACAFI study)

Author

Brittenden, John, Stockell, David, Palanimuthu, Vinesh, Shahin, Yousef, Hersey, Naomi, Geh, Thomas, Kang, Joe, Sukhanenko, Maria, Yin, Zheng Dao, Pang, Wei Sheng, McGowan, Dominic, Saraswat, Lokesh, Ali, Nabil, Mahay, Usman, Harborne, Katrina, Chivate, Rahul, Nourzaie, Romman, Burke, Niall, Thomson, Benedict, Makris, Gregory, Clarke, Christopher, Yousuff, Mehreen, Davies, James, Sammut, John, George, Cherian, Arain, Salman Javed, Mullan, Damian, Moore, Katherine Sophie, King, Emile, Yang, Zelei, Liu, Chantal, Skervin, Alicia, Oyewole, Bankole, Belgaumkar, Ajay, Zamfir, Georgiana, Seager, Matthew John, Ramalingam Sethumadhavan, Dinesh Madhavan, Peddu, Praveen, Shiwani, Hunain, Ahmed, Niaz, Goga, Usman, Akthar, Mohammed Rashid, Bhondi, Arjun, Mohammad, Fahad, Hazar, Can, Aleman, Conor, Hardman, Alex, Murdoch, James, Kasem, Mohamed, Rahman, Syed, Wigmore, Edward, Bullock, Cameron, Gemmell, Andrew, Lewis, Omotolani, Lee, Joshua, Mason, Sabrina, Tham, Jun-Li, Poon, Choong Leng, Jones, Charlotte, Thorpe, Ashley, Doddaballapur, Vinay Kumar, Carlsson, Tarryn, White, Andrew, Forjoe, Tonia, Sundar, Gaurav, Greenwood, A.J., Lewis, Katherine, Yan Chan, Karen Man, Moussa, Amr, Tan, Kelvin, Crawford, Michael, Ali, Tariq, Sabir, Yasir, Basha, Amjad Chamsi, Liu, Wing Yan, Walker, Samuel, Siah, Tze Hung, Ganguly, Akash, Akram, Mohammad Haroon, Patel, Shian, Maclean, Drew, Williams-Gunn, Harriet, O'Brien, Matthew, Cliffe, Hannah, Parvulescu, Flavius, Fong, Joey, Kallampallil, Jins, Lechareas, Symeon, Valencia, Dexter, Piyatissa, Pubudu, Bakewell, Robert, Heptonstall, Nicholas, Shaida, Nadeem, Ryder, Michael, Gaikwad, Ketan, Gangadharan, Vinay, Habib, Abubakar, Menon, Gautam, Mohamed, Abdishakur, Pat, Jackson, Railton, Nick, Tam, Matthew, Hor, Yong Keen, Ryan, Claire, Guest, Timothy, Jagirdar, Naeem, Chetan, Madhurima R., Khan, Faraaz, MacDonald, Andrew, Kit Yeng Wong, Jim Zhong, Shah, Mahak, Burbidge, Simon, Anandarajah, Mayooreshan, MacCormick, Andrew, Jenkins, Paul, Zhong, Jim, Makris, Gregory C., Gafoor, Nelofer, and Chan, David

Published
2023
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5. Design of load-aware resource allocation for heterogeneous fog computing systems.

Author

Hassan, Syed Rizwan, Rehman, Ateeq Ur, Alsharabi, Naif, Arain, Salman, Quddus, Asim, and Hamam, Habib

Subjects
RESOURCE allocation, COMPUTER systems, EDGE computing, HETEROGENEOUS computing, CLOUD computing, ALGORITHMS
Abstract

The execution of delay-aware applications can be effectively handled by various computing paradigms, including the fog computing, edge computing, and cloudlets. Cloud computing offers services in a centralized way through a cloud server. On the contrary, the fog computing paradigm offers services in a dispersed manner providing services and computational facilities near the end devices. Due to the distributed provision of resources by the fog paradigm, this architecture is suitable for large-scale implementation of applications. Furthermore, fog computing offers a reduction in delay and network load as compared to cloud architecture. Resource distribution and load balancing are always important tasks in deploying efficient systems. In this research, we have proposed heuristic-based approach that achieves a reduction in network consumption and delays by efficiently utilizing fog resources according to the load generated by the clusters of edge nodes. The proposed algorithm considers the magnitude of data produced at the edge clusters while allocating the fog resources. The results of the evaluations performed on different scales confirm the efficacy of the proposed approach in achieving optimal performance. [ABSTRACT FROM AUTHOR]

Published
2024
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7. Coronary flow capacity and survival prediction after revascularization: physiological basis and clinical implications

Author

Gould, K Lance, primary, Johnson, Nils P, additional, Roby, Amanda E, additional, Bui, Linh, additional, Kitkungvan, Danai, additional, Patel, Monica B, additional, Nguyen, Tung, additional, Kirkeeide, Richard, additional, Haynie, Mary, additional, Arain, Salman A, additional, Charitakis, Konstantinos, additional, Dhoble, Abhijeet, additional, Smalling, Richard, additional, Nascimbene, Angelo, additional, Jumean, Marwan, additional, Kumar, Sachin, additional, Kar, Biswajit, additional, Sdringola, Stefano, additional, Estrera, Anthony, additional, Gregoric, Igor, additional, Lai, Dejian, additional, Li, Ruosha, additional, McPherson, David, additional, and Narula, Jagat, additional

Published
2023
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8. Coronary flow capacity and survival prediction after revascularization: physiological basis and clinical implications.

Author

Gould, K Lance, Johnson, Nils P, Roby, Amanda E, Bui, Linh, Kitkungvan, Danai, Patel, Monica B, Nguyen, Tung, Kirkeeide, Richard, Haynie, Mary, Arain, Salman A, Charitakis, Konstantinos, Dhoble, Abhijeet, Smalling, Richard, Nascimbene, Angelo, Jumean, Marwan, Kumar, Sachin, Kar, Biswajit, Sdringola, Stefano, Estrera, Anthony, and Gregoric, Igor

Subjects
MYOCARDIAL perfusion imaging, BLOOD flow measurement, POSITRON emission tomography, PERCUTANEOUS coronary intervention, CORONARY artery disease, MICROCIRCULATION disorders
Abstract

Background and Aims Coronary flow capacity (CFC) is associated with an observed 10-year survival probability for individual patients before and after actual revascularization for comparison to virtual hypothetical ideal complete revascularization. Methods Stress myocardial perfusion (mL/min/g) and coronary flow reserve (CFR) per pixel were quantified in 6979 coronary artery disease (CAD) subjects using Rb-82 positron emission tomography (PET) for CFC maps of artery-specific size-severity abnormalities expressed as percent left ventricle with prospective follow-up to define survival probability per-decade as fraction of 1.0. Results Severely reduced CFC in 6979 subjects predicted low survival probability that improved by 42% after revascularization compared with no revascularization for comparable severity (P =.0015). For 283 pre-and-post-procedure PET pairs, severely reduced regional CFC-associated survival probability improved heterogeneously after revascularization (P <.001), more so after bypass surgery than percutaneous coronary interventions (P <.001) but normalized in only 5.7%; non-severe baseline CFC or survival probability did not improve compared with severe CFC (P =.00001). Observed CFC-associated survival probability after actual revascularization was lower than virtual ideal hypothetical complete post-revascularization survival probability due to residual CAD or failed revascularization (P <.001) unrelated to gender or microvascular dysfunction. Severely reduced CFC in 2552 post-revascularization subjects associated with low survival probability also improved after repeat revascularization compared with no repeat procedures (P =.025). Conclusions Severely reduced CFC and associated observed survival probability improved after first and repeat revascularization compared with no revascularization for comparable CFC severity. Non-severe CFC showed no benefit. Discordance between observed actual and virtual hypothetical post-revascularization survival probability revealed residual CAD or failed revascularization. [ABSTRACT FROM AUTHOR]

Published
2024
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10. CANCER OUTCOMES, COST, AND DISPARITIES IN CHRONIC TOTAL OCCLUSION: MACHINE LEARNING AND PROPENSITY SCORE ANALYSIS OF 160,875 PERCUTANEOUS CORONARY INTERVENTIONS

Author

Monlezun, Dominique, primary, Bajwa, Muhammad T., additional, Park, Jong Kun, additional, Kim, Jin wan, additional, Patel, Rishi, additional, Koutroumpakis, Efstratios, additional, Javaid, Awad, additional, Honan, Kevin, additional, liu, Victor, additional, Cilingiroglu, Mehmet, additional, Marmagkiolis, Konstantinos, additional, Iliescu, Cezar, additional, and Arain, Salman Atiq, additional

Published
2023
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11. CANCER, RACIAL, AND URBAN DISPARITIES IN PERIPHERAL ANGIOGRAPHY: MACHINE LEARNING AUGMENTED NATIONALLY REPRESENTATIVE COST ANALYSIS OF 190,745 HOSPITALIZATIONS

Author

Patel, Rishi, primary, Monlezun, Dominique, additional, Iliescu, Cezar, additional, Arain, Salman Atiq, additional, Koutroumpakis, Efstratios, additional, Boudoulas, Konstantinos Dean, additional, Cilingiroglu, Mehmet, additional, Marmagkiolis, Konstantinos, additional, Desai, Shyam, additional, and Park, Jong Kun, additional

Published
2023
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14. C-38 | Improving TAVR Procedural Volume Disparities Among Active Cancer: Propensity Score and Machine Learning Case-control Analysis of 101 Million+ Hospitalizations From 2016-2018

Author

Kim, Jin wan, primary, Monlezun, Dominique J., additional, Honan, Kevin A., additional, Simbaqueba Clavijo, Cesar A., additional, Chauhan, Siddharth, additional, Badalamenti, Andrew, additional, Liu, Victor, additional, Javaid, Awad, additional, Balanescu, Dinu-Valentin V., additional, Palaskas, Nicolas, additional, Cilingiroglu, Mehmet, additional, Dhoble, Abhijeet, additional, Charitakis, Konstantinos, additional, Arain, Salman A., additional, Boudoulas, Konstantinos Dean, additional, Marmagkiolis, Konstantinos, additional, and Iliescu, Cezar A., additional

Published
2022
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15. B-7 | Impella Has Greater Mortality Benefit For Patients With Versus Without Cancer: Machine Learning Supported Propensity Score Case-control Analysis of 101 Million+ Hospitalizations From 2016-2018

Author

Honan, Kevin A., primary, Monlezun, Dominique J., additional, Badalamenti, Andrew, additional, Kim, Jin wan, additional, Liu, Victor, additional, Javaid, Awad, additional, Chauhan, Siddharth, additional, Simbaqueba Clavijo, Cesar A., additional, Balanescu, Dinu-Valentin V., additional, Palaskas, Nicolas, additional, Cilingiroglu, Mehmet, additional, Dhoble, Abhijeet, additional, Charitakis, Konstantinos, additional, Arain, Salman A., additional, Boudoulas, Konstantinos Dean, additional, Marmagkiolis, Konstantinos, additional, and Iliescu, Cezar A., additional

Published
2022
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20. Abstract 14411: Predictors of Delirium Among Hospitalized Older Adults With Cardiovascular Disease

Author

Lin, Kevin, primary, Bhetuwal, Rishtina, additional, Bonilla Moreno, Miguel, additional, Irizarry-Caro, Jorge, additional, Cerra, Zachary, additional, Chauhan, Siddharth, additional, Jeffrey, Chen, additional, Natasha, Cigarroa, additional, Datar, Saumil, additional, Gandhi, Puja, additional, Hollander, Jeffrey, additional, Keiser, Monika, additional, McAndrews, Kristine, additional, Ren, Yawen, additional, Arain, Salman A, additional, Dhoble, Abhijeet, additional, and Kwak, Min Ji, additional

Published
2021
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21. Abstract 13212: Chronic Total Occlusion Racial and Income Inequities by Mortality and Cost: Propensity Score and Machine Learning Augmented Nationally Representative Case-Control Study of 30 Million Hospitalizations

Author

Agrawal, Nikhil, primary, Monlezun, Dominique, additional, Grable, Cullen, additional, Graham, Jordan, additional, Marmagkiolis, Konstantinos, additional, Chauhan, Siddharth, additional, Hostetter, Logan, additional, Cilingiroglu, Mehmet, additional, Dhoble, Abhijeet, additional, Charitakis, Konstantinos, additional, Smalling, Richard W, additional, Palaskas, Nicolas L, additional, Arain, Salman A, additional, and Iliescu, Cezar, additional

Published
2021
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22. Abstract 10501: Clinical Outcomes After Transcatheter Edge-to-Edge Repair of the Mitral Valve with the Mitraclip TM System in Cancer Survivors

Author

Agrawal, Nikhil, primary, Lin, Kevin, additional, Battel, Lucas, additional, Garcia-Sayan, Enrique, additional, Lopez-Mattei, Juan, additional, Arain, Salman A, additional, Charitakis, Konstantinos, additional, Iliescu, Cezar, additional, Smalling, Richard W, additional, and Dhoble, Abhijeet, additional

Published
2021
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24. Percutaneous revascularization for the treatment of refractory digital ischemia in systemic sclerosis

Author

Romero-Karam, Lily A, Honan, Kevin A, Arain, Salman A, and Mayes, Maureen D.

Abstract

Objective: The objective of this study is to explore the role of adjunctive percutaneous revascularization of the hand in the management of patients with systemic sclerosis–associated refractory digital ischemia.Methods: We present our initial experience of using percutaneous upper extremity interventions to treat patients with systemic sclerosis and symptomatic Raynaud’s phenomenon who presented with either refractory digital ischemia or non-healing ulcers. We discuss patient characteristics, procedural findings, and short-term clinical outcomes of these interventions.Results: We performed 14 interventions in 6 patients with non-healing digital ulcers or refractory ischemia secondary to systemic sclerosis. Angioplasty was performed at or below the wrist in conjunction with intravenous prostaglandin therapy, started prior to or immediately after the revascularization procedure. All patients experienced symptomatic relief and demonstrated accelerated wound healing. Two patients required an additional procedure to treat recurrent ischemia (without new ulceration) in the treated digit. Three of the patients underwent multiple procedures during the study period to treat new ischemic lesions or Raynaud’s phenomenon symptoms, highlighting the progressive nature of the vascular occlusions in systemic sclerosis. There were no adverse events related to the interventions.Conclusions: Our retrospective analysis suggests that percutaneous revascularization in combination with vasodilator therapy in systemic sclerosis–associated digital ischemia is safe and can facilitate the healing of long-standing ulcers. Its role in the management of refractory digital ischemia in patients with systemic sclerosis should be explored further.

Published
2023
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25. Electronically Reconfigurable WLAN Band-Notched MIMO Antenna for Ultra-wideband Applications.

Author

Quddus, Asim, Saleem, Rashid, Arain, Salman, Hassan, Syed Rizwan, and Shafique, M. Farhan

Subjects
ULTRA-wideband antennas, PIN diodes, WIRELESS LANs, ANTENNA design, IMPEDANCE matching, ANTENNAS (Electronics), RADIATORS
Abstract

A low-profile electronically reconfigurable WLAN band-notched dual port multiple-input multipleoutput (MIMO) antenna design for ultra-wideband applications has been presented. Antenna elements exhibit good impedance match (S11 ≤ -10 dB) over entire ultrawideband (3.1 to 10.6 GHz) spectrum. The decoupling structure is used to improve isolation (S12/S21) above 20 dB over entire UWB band. Moreover, reconfigurable band-notching is achieved by inserting PIN diodes along the inverted L-shaped slots, in each radiator. Notch at WLAN (5.5 GHz) frequency band is achieved by switching the PIN diode to 'OFF' state. The antenna design is fabricated as well as measured, and the results suggests that the proposed design with switchable WLAN band-notch characteristics is suitable candidate for ultra-wideband applications. [ABSTRACT FROM AUTHOR]

Published
2021
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26. Abstract 14107: Racial and Income Inequities in Cardiovascular Disease in Cancer versus Non-Cancer Patients: Propensity Score and Machine Learning Augmented Nationally Representative Case-Control Study of Mortality and Cost Among 30 Million Hospitalizations

Author

Monlezun, Dominique, Agrawal, Nikhil, Palaskas, Nicolas L, Cilingiroglu, Mehmet, Marmagkiolis, Konstantinos, Dhoble, Abhijeet, Arain, Salman A, and Iliescu, Cezar

Abstract

Introduction:We conducted the first known nationally representative propensity score analysis of racial and income inequities in cardiovascular disease (CVD) for patients with and without active cancer.Methods:Propensity score adjusted and backward propagation neural network machine learning augmented multivariable regression was performed by race and income (and their interaction) for the above outcomes in this case-control study of the United States’ largest and first ICD10-coded all-payer hospitalized dataset, the 2016 National Inpatient Sample (NIS). Models were stratified by active cancer and CVD (defined by the 2021 WHO).Results:Of the 30,195,722 adult hospitalized patients, 25.64% had CVD, and 7.11% had active cancer. In fully adjusted regression among patients without cancer, Hispanic (OR 1.34, 95%CI 1.03-1.25; p=0.012) and Asian (OR 1.22; 95%CI 1.11-1.34; p<0.001) had significantly increased mortality compared to Caucasian patients as did the lowest (OR 1.11; 95%CI 1.07-1.15; p<0.001) and second lowest (OR 1.05; 95%CI 1.01-1.08; p=0.006) income quartiles compared to the highest. Among patients with cancer, similar significant racial inequities were noted but without income disparities. Mortality was not significantly increased by the interaction in either strata. Among patients without cancer, Hispanics ($14,196.68; 95%CI 12,887.86-15,505.51; p<0.001) and Asians ($19,377.06; 95%CI 17,939.38-20,814.74; p<0.001) had significantly increased costs compared to Caucasians; African American, Hispanic, and Asian patients in the lowest and second lowest income quartiles had significantly increased costs compared to Caucasians in the highest quartile. Patients with cancer had comparable cost inequities by race but not by income or the interaction.Conclusions:This nationally representative study suggests that significant income and racial inequities exist in inpatient mortality and cost among patients with CVD, though these disparities are less pronounced among cancer versus non-cancer patients.

Published
2021
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27. Abstract 10501: Clinical Outcomes After Transcatheter Edge-to-Edge Repair of the Mitral Valve with the MitraclipTMSystem in Cancer Survivors

Author

Agrawal, Nikhil, Lin, Kevin, Battel, Lucas, Garcia-Sayan, Enrique, Lopez-Mattei, Juan, Arain, Salman A, Charitakis, Konstantinos, Iliescu, Cezar, Smalling, Richard W, and Dhoble, Abhijeet

Abstract

Introduction:Valvular diseases, especially Mitral regurgitation (MR) confer a high cardiovascular burden in cancer survivors. Transcatheter Edge-to-Edge Repair (TEER) with the MitraClipTMsystem has shown promising results in the management of severe MR regardless of etiology. However, little is known about the impact of cancer history on patient outcomes.Methods:We studied 456 consecutive patients (cancer: 86; non-cancer: 370) with severe mitral regurgitation who underwent mitral valve TEER at our institution from 2005 to 2020. In addition to pre-and post-procedural characteristics, we examined imaging parameters and outcome data including all-cause mortality. We used Cox regression analysis to identify factors associated with mortality.Results:Patients were followed for a mean of 9.2 months (SD 19). Table 1 shows the baseline and follow-up characteristics for both groups. At 1-year follow-up, only 4 (5%) cancer survivors and 23 (6%) non-cancer patients had died. In a Cox regression analysis, short-term (<90 days) and long-term (1 year) mortality were similar in both cohorts (HR 0.8 and 1.2, respectively; p>0.05). Age and sex were also not significantly associated with mortality (p>0.05). In subgroup analyses, at 1-year follow-up, cancer survivors who had received prior radiation therapy were more likely to have died (11% vs 0; X2=5.07, p=0.024) and cancer survivors with solid tumors were more likely to have an NYHA functional class III-IV at 1-year follow-up than those with hematologic malignancies (X2=4.75, p=0.029).Conclusions:In this large retrospective study, short- and long-term all-cause mortality after mitral valve TEER were similar in both cancer survivors and non-cancer patients. Prior radiation therapy and history of solid tumors may be poor prognostic markers.

Published
2021
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