Search

Your search keyword '"N. Atsushi"' showing total 11 results
Start Over Author "N. Atsushi"
11 results on '"N. Atsushi"'

2. A new surface model based on a fibre bundle of 1-parameter groups

Author

Jongdae Kim, N. Atsushi, and Jinhui Chao

Subjects
Vector-valued differential form, Mathematics::Algebraic Geometry, Associated bundle, Mathematical analysis, Lie algebra, Object model, Fiber bundle, Topology, Principal bundle, Frame bundle, Direct product, Mathematics
Abstract

A new fibre bundle surface model is proposed for 3D object modeling. This fibre bundle model, consisting of local direct product of a base curve and a fibre curve, is able to represent arbitrary surfaces. In particular, the fibre bundle of 1-parameter groups, i.e. with fibres as 1-parameter groups are efficient in both synthesis and recognition. Indeed, the 1-parameter groups can be uniquely determined by finite, e.g. six invariants of their Lie algebras. Besides, the surfaces can be quickly generated by elementary functions without numerical integration errors. This model is also expected to be useful in object-based 3D image coding.

Published
2005
Full Text
View/download PDF

3. Tracking multiple people using distributed vision systems

Author

K. Hirokazu, I. Seiji, N. Atsushi, and H. Shinsaku

Subjects
Computer science, Image processor, business.industry, Machine vision, Real-time computing, Cognitive neuroscience of visual object recognition, Teleconference, Computer vision, Artificial intelligence, Information security, business, Tracking (particle physics), Task (project management)
Abstract

We describe a method for observing multiple targets in a wide-area spatial environment using a distributed vision system (DVS). The DVS is constructed of some 'watching stations' that consist of a camera, an image processor and a computer network that connects each systems. The system's goal is to track multiple people in a wide-area that cannot be watched by single visual sensor. Our approach is based on three algorithms; an algorithm for real-time human tracking, the task decision algorithms of individual watching stations, and the object-matching method used between stations. We also describe experimental results that show the validity of our approach.

Published
2003
Full Text
View/download PDF

7. Intraperitoneal Infusion of Docetaxel Combined with Oral S-1 for Metastatic or Recurrent Gastric Cancer Patients with Peritoneal Metastasis

Author

N. Atsushi, M. Aizawa, Hiroshi Yabusaki, and A. Matsuki

Subjects
medicine.medical_specialty, Chemotherapy, business.industry, Anemia, medicine.medical_treatment, Hematology, Neutropenia, medicine.disease, Gastroenterology, Oncology, Docetaxel, Laparotomy, Internal medicine, Medicine, Gastrectomy, business, Survival rate, Febrile neutropenia, medicine.drug
Abstract

Introduction Though many modalities of chemotherapy have been tried for metastatic or recurrent gastric cancer (GC) patients (pts) with peritoneal dissemination, it remains uncontrollable yet. Docetaxel (DOC) and S-1 have different mechanisms of anti-tumor activity and they are effective against advanced GC. Recently, intraperitoneal administration (IP) of DOC has proved to be effective for peritoneal dissemination. Material and methods Eligibility included metastatic or recurrent GC with peritoneal dissemination, capability of oral intake, adequate organ function, and good PS (0-2). IP catheters were placed for all patients after histological confirmation of peritoneal dissemination by laparoscopy or laparotomy. The treatment of oral S-1 (80 mg/m2 daily day 1-14, q4w) and DOC (35 ∼ 45 mg/m2 ip day 1 and 15, q4w) was repeated every 4 weeks until disease progression or unacceptable toxicities. Results Between Aug. 2001 and Mar. 2012, 52 pts (P3; 25, P2; 4, P0CY1; 23) including 27 males and 25 females, with a median age of 59 (21-80) were enrolled. Total No. of cycle was 334, the median No. of cycle was 6 (2-15), reduced courses were 109, delayed courses (>7 days) were 46. Reductive gastrectomy was performed for 7 cases. The grade 3/4 toxicities were neutropenia (5.8%), anemia (7.7%), anorexia (13.5%), fatigue (9.6%), and diarrhea (9.6%), respectively. However febrile neutropenia, grade 4 non-hematological toxicities and TRD were not observed. The incidence of cancer cell positive cytology (CY1) changed to negative (CY0) was 61.0% (25/41), but no obvious peritoneal metastasis (P1-P3) disappeared. The MST was 11.1 months and l-, 2- and 3-year survival rate was 48.1%, 23.1 and 9.6%, respectively. Conclusions With respect to low toxicity and high feasibility, IP infusion of DOC with oral S-1 is an alternate treatment for metastatic or recurrent GC with peritoneal dissemination. Disclosure All authors have declared no conflicts of interest.

Published
2012
Full Text
View/download PDF

8. TH-302 + Gemcitabine (G + T) vs Gemcitabine (G) in Patients with Previously Untreated advanced Pancreatic Cancer (PAC)

Author

Alain Duhamel, A. Tsuburaya, Mali Okada, S. Kuwabara, H. Hasegawa, A.L. Cohn, Anne Thirot-Bidault, J.R. Delgado, O.U. Unal, J. Isaacson, S. Khudayorov, Sue Ward, N. Mueller, Riccardo Lencioni, Giovanni Abbadessa, D. Takahari, T. Watanabe, Luca Faloppi, Y. Hamamoto, Julia Hocke, Elwyn Loh, M. Aizawa, E. Trejo, A. Novarino, A. Ohtsu, K. Okita, M.J. Flor, Riccardo Giampieri, C. Rose, D. Gonzalez-De-Castro, H. Isayama, M. Esaki, Jean-Pierre Bronowicki, S. Cereda, S. Hironaka, A. Sawaki, I. Iwanicki-Caron, L. Ferrari, J. Stephenson, F. Gerevini, E. Francois, T. Okusaka, S. De Minicis, Cristian Loretelli, S.Y. Roh, A. González-Vicente, F. Richard, H. Tuyev, A. Laforest, K. Lin, M. Milic´evic´, Chunming Li, Wolfgang Eisterer, P. Basile, Mohamed Gasmi, S. Hazama, M. Botta, Seiji Kawazoe, Jean-Luc Raoul, Y. Jiang, I. Trouilloud, B. Nagy, E. del Valle, Satoshi Yuki, K.W. Park, Hanno Riess, M. Bartosiewicz, L. Rolfe, H. Fang, E. Gardner, A. Benedetti, A. Carrato, E. Vasile, Takayuki Kii, N. Suzuki, Y. Shimada, S.F. Ang, S. Fushida, V. Vaccaro, Y. Liu, E. Castanon Alvarez, Y. Ozaki, D. Mirabelli, Ozgur Ozyilkan, J.E. Battley, C.H.S. Kim, N. Weijl, B. Bui, J.C. Sabourin, M. Hejna, Raymond Miller, N. Besova, Jinhui Xu, Ian Chau, J.-L. Van Laethem, Eric Vibert, Philippe Mathurin, H. Yabusaki, Melissa Frizziero, J. Soberino García, S. Salvagni, M. Zhu, Christoph Schuhmacher, Y. Yamada, A. Hubert, R. Libener, S.T. Dimoudis, Jonathan Wadsley, J. Martinez-Galan, Coskun U, V. Karavasilis, Cem Parlak, N. Jain, T. Gamucci, Elisa Giovannetti, R. Gupta, Suleyman Buyukberber, Jose Javier Sanchez, Taro Tokui, Kenneth K. Tanabe, V. Nerich, G. Dyson, Y. Kawachi, J. Reis-Filho, Junichi Sakamoto, A. Mohar-Betancourt, Masahide Mori, Aytug Uner, S. Martin Algarra, C.-J. Yen, J.J. Critchfield, Y. Naomoto, Julien Taieb, Young Seon Hong, Hironori Yamaguchi, S. Jiao, Alan P. Venook, C. Pericay, R.H. Wilson, D. Ferrari, Peter R. Galle, S. Falcon, Emilio Bria, L. Paz-Ares, Anna Tomezzoli, S. Al-Batran, G. Luppi, Jean-Marie Boher, I. Park, F. De Vita, Roland Leung, M. Abdelwahab, A. Ravaioli, Takuya Suzuki, C. Szczylik, C. González-Rivas, Sarita Dubey, Y. Miyashita, J.Y. Lim, Y. Chen, F. El Hajbi, Ichinosuke Hyodo, Tsutomu Chiba, C. Kondo, S. Ye, Thomas Aparicio, M. Nesrine, T. Ganten, T. Nishina, G. Grazi, A.C. Dupont-Gossard, I. Oze, F. Nosrati, J.H. Yook, C. Yoo, N.A. Adu-Aryee, M. Choi, Narikazu Boku, P. Chan, John Bridgewater, A. Gimenez-Capitan, Hamim Zahir, R. Hela, T. Villegas, Stefano Barbi, György Bodoky, D. Degiovanni, Y. Honma, A. Croitoru, K. Koufuji, Lorenza Rimassa, A. Tsuji, Yueyang Shen, Nathan Bahary, S. Abdelwahab, N. Matsuura, Parsee Tomar, L. Yu, Mohammed Elbassiouny, B. Ryoo, S. Adachi, Jean-Robert Delpero, V.D.N.K. Vanderpuye, S.T. Oh, E. Samantas, Amit Bahl, N. Karachaliou, Thierry Lecomte, S. Yoshino, H. Hahn, A. Matsuki, K. Nakamura, D.S. Johnston, M. Del Prete, Per Stål, R. Greil, Dirk Arnold, K. Ridwelski, J. Zhao, K. Shirouzu, Meltem Baykara, G. De Manzoni, I. Lang, K. Aoyagi, A. Fukutomi, Joji Kitayama, Antonieta Salud, K. Beecham, Y. Inoue, Armando Santoro, R. Rosell, P. Malfertheiner, Tsutomu Fujii, Jeong-Yeol Park, S. Taylor, K. Nakajima, Matus Studeny, H. Jiang, M. Shimada, O. Abdelrhman, Camillo Porta, P. Ballesteros, S. Lecleire, K. Han, G. Svegliati Baroni, Michitaka Nagase, François Paye, W. Rodriguez Pantigoso, M.M. Eatock, H.C. Toh, M. Ikeda, Hironori Ishigami, N. Stankovic, H. Kumada, K. Shitara, X. Zhang, E. Arevalo, R. Poon, M. Allard, Y.-Y. Lin, D. Egamberdiev, Shin'ichi Miyamoto, P. Afchain, Harpreet Wasan, Mitesh J. Borad, J. Blay, Dong Sup Yoon, H. Kawai, L. Jin, Margaret Sheehan, T. Otsuji, M. Lichinitser, Ahmet Ozet, R. Savage, Heind Smith, L. Zubiri, Tim Meyer, Erkan Topkan, Ross C. Donehower, Joanne Chiu, T. Tsuda, P. Jimenez Fonseca, U. Selek, N. Musha, B. Liu, A. Magnusson, S.C. Sharma, C. Purcell, H. Wong, E. Lucchini, Jean-Marc Phelip, E. Jeon, J. Fujita, Kelly S. Oliner, W. Schelman, W. Mao, S. Hato, A-L Cheng, D.-L. Ou, Tarek Sahmoud, J. Waters, Jorge A. Marrero, David Malka, P. Xavier, M. Haibo, S. Takiguchi, Q. Pan, S. Ohkawa, J. Kizaki, I.P. Le, A. Roveta, D.H. Koo, H.J. Kim, H. Choi, T. Göhler, A. Gelibter, C. Borg, X. Qiang, Masaya Suenaga, Ozan Cem Guler, Niall C. Tebbutt, M. Emi, S. Ota, N. Nagata, S. Iwasa, Mira Ayadi, K. Matsuo, Henk M.W. Verheul, Christoph C. Zielinski, S. Choo, M.W. Büchler, René Adam, M. Pistelli, J.A. Gonzalez, Charles S. Fuchs, G. Vallati, G. Pentheroudakis, S. Tokunaga, U. Demirci, Lin Shen, B. Heyd, X. Zhou, T. Ioka, Toshiyoshi Fujiwara, O. Testori, Y.S. Park, A. Allen, Rakesh Kapoor, Bruno Daniele, T. Hirai, Z. Lakkis, I.B. Tan, Y-K Kang, S.A. Aledavood, N. Reynoso, F. Serejo, Sergio Ricci, Jennifer Gansert, M. Miyagi, S. Santi, A. Parthan, A C Wotherspoon, L. Chaigneau, Sumera Rizvi, M.G. Fabrini, Véronique Vendrely, W. Su, V. Shalenkov, L. Tu, G. Numico, Joon Seong Park, J.H. Kim, Hope E. Uronis, Mustafa Benekli, I. Aoyama, M. Gauthier, S. Lazzarelli, W. Liguigli, N. Atsushi, H. Kastrissios, J. Thaler, Z. Zou, T. Tsujinaka, S. Barbero, F. Fiteni, Irene Kührer, Aldo Scarpa, C. Desauw, J.F. Seitz, Takahiro Horimatsu, R. von Roemeling, T. Yamamoto, H.R. Alexander, Timothy Iveson, F.M. Negri, Ermek Tangsakar, Pascal Artru, Jia Zhang, S. Lee, Satoshi Morita, E. Garralda, M. Moore, J. Lee, M. Seilanian Tousi, J. Gornet, Yasuhiro Kodera, Werner Scheithauer, L. Marthey, D. Atanackovic, P. Zhao, D. Wang, I. Davidenko, T.S. Waddell, S. Takeda, N. Fan, R. Kawabata, M. Raponi, Giampaolo Tortora, M. Ogasawara, B. Gruenberger, Guido Gerken, Ivan Borbath, N. Fuse, Denis Smith, Emmanuel Mitry, Vikki Tang, I. Stilidi, Min-Hee Ryu, Tulay Akman, C. Saffery, Roopinder Gillmore, K. Ligier, R. Coriat, T. Namikawa, L. Sun, R. Xu, Gary Middleton, W. Tröger, F. Keil, Bruno Chauffert, K. Achilles, David Cunningham, H. Raies, M.Y. Teo, Y. Hamai, S. Tjulandin, I. Boukovinas, J. Kazakin, J. Beebe-Dimmer, Pippa Corrie, J.A. Ortega, A. Cueff, C. Costa, V. Da Prat, Y. Tanaka, F. Rivera, K. Hashimoto, Tianshu Liu, K. Kato, J.C. Plaza, G. Fountzilas, N. Chaiet, Byung Sik Kim, K. Ueda, Pierre Laurent-Puig, Y.-C. Cheng, Mendel Jansen, T. Salman, C. Papandreou, T. Carothers, H. Van Vlierberghe, M. Rios, S. Barni, Y. Arai, G. Afc, Julia Klech, Bryan C. Fuchs, S.T. Fan, A. Falcone, J-B. Bachet, Y. Fujiwara, S. Navruzov, Fumihiko Kanai, H. Shiah, J. Xia, N. Xu, X. Garcia del Muro, M. Lucchesi, Jae Yong Cho, A. Leon, W. Jin, C. Eng, A.U. Yilmaz, L.-T. Chen, Laurent Bedenne, I. Vynnychenko, Brian Schwartz, J. Ruíz Vozmediano, Toshihiro Tanaka, Jinwan Wang, F. Musante, C. Belli, K. Imanaka, W. Fang, J.P. Fusco, S. Gupta, Daniel H. Palmer, M. Ninomiya, N. Ryuge, M. Djuraev, B. Benzidane, H. Yasui, P.G. Betta, M. Sanon, J. Mizusawa, M. Hou, H. Pan, Y. Osaki, Darren Sigal, E. Schott, J. Rodriguez, E. Wöll, S. Nakamori, Anthony F. Shields, Yasuo Ohashi, M. Raikou, M.W. Bennett, Zhilong Zhao, G. Colucci, R. Stauber, M. Nakamura, T. Nguyen, Xin Li, C. Greco, K. Hanazaki, C. Mao, Y. Matsumura, S. Emoto, Maristella Bianconi, Yoon Ho Ko, E. Trusilova, J. Coombs, H. Iwase, V.A. Gorbunova, M. Lencioni, M. Svrcek, S. Leo, Mahmoud Ellithy, N. Silvestris, Y.H. Min, N. Urata, A. Sainato, K. Yoshimura, U. Boggi, D.C. Huang, T. Tsuzuki, S.H. Hong, K. Ikeda, Mohammed Shaker, Olivier Turrini, Arsene-Bienvenu Loembe, Jaffer A. Ajani, G. Pelletier, Stefano Cascinu, F. Bergamo, I.T. Unek, T. Di Palma, H. Li, Maria Lamar, H. Inagaki, M. Ratti, M. Iida, F. Pons Valladares, S. Caponi, A. Sa-Cunha, A. Passardi, J. Wei, S. Azevedo, W. Wang, S. Luelmo, M. Brighenti, A. Mezlini, Y. Zheng, S. Reddy, M. Milella, S. Nered, D. Li, Carsten Bokemeyer, Manabu Muto, C. Krüger, X.J. Sun, T. Ueno, M. Harrison, F. Cognetti, Y. Kida, M. Kobayashi, S. Akamaru, G. Leonard, Y. Inaba, A. Jayaram, Özgür Ekinci, Y. Bai, F. Subtil, Wasaburo Koizumi, M.A. Fridrik, Pierre Michel, R.C. Turkington, D. Galun, N. De Lio, A. Le Cesne, L. Toppo, Thorsten Füreder, R. Poli, V. Moiseyenko, Jean-Louis Jouve, Y. Lu, A. Babaev, N. Okumura, Isamu Okamoto, G.C. Ruiz, I. Oztop, T. Isobe, W. Fischbach, A. Takashima, Alessandro Bittoni, Y-C Chang, K. Yamaguchi, Vincent J. Picozzi, K. Muro, M. Sebagh, Y. Shindo, S. Beghelli, M. Skoblar Vidmar, Alessandra Mandolesi, M. Reni, K. Nishikawa, Marine Gilabert, Y. Maeda, Francesco Massari, E.B. Ruiz, K. Pan, H. Lou, H.S. Won, C. Diaz, J.P. O'Brien, Shuichi Kaneko, C. Gomez-Martin, J. Sgouros, A. Funakoshi, W. Figg, F. Chai, M.S. Pino, X. Pivot, K. Anvari, J. Turnes, M. Reif, F. Lopez-Rios, W. Cheung, David P. Ryan, M. Oka, I. Varthalitis, A. Deptala, Masatoshi Kudo, F. Romeder, J. Qian, J. Hihara, T. Shibata, T. Yamatsuji, B. Gonzalez-Astorga, B. Allani, Y. Tsuji, J. Liu, Thomas Yau, S. Lim, F. Grosso, Y.D. Zheng, R. Passalacqua, J. Chen, I. Sperduti, H. C. Kwon, C. Cappelli, C. Guettier, O. Nematov, Lanjun Zhou, C. Caparello, F. Bonnetain, R. Ferrara, A. Nashimoto, A. Schumann, Richard Martin Bambury, C. Mazzara, T. Aramaki, B. Saracino, M. Takagi, G. Di Lucca, Philip A. Philip, A. Aloui, Philippe Bachellier, N. Hirabayashi, S. Osanto, S. So, N. Fukushima, K.-H. Yeh, Y. Aoki, M. Baretti, Y-L. Gong, Koichiro Yamakado, C.-H. Hsu, R. Buder, D.G. Power, H. Matsumoto, Chiara Costantini, Y. Xu, G. Tomasello, A. Lopez Pousa, D.K. Lee, F. Di Fiore, O. Polat, K. Suzuki, L. Arbea, R. McDermott, S.-H. Kim, E. Toure, O. Bouche, A. Zaanan, T. Hamaguchi, Mary Geitona, M.H. Tan, M. Antonietti, Italo Bearzi, Juan W. Valle, D. Castaing, H. Shoji, Eylem Pınar Eser, Mario Scartozzi, R. Abdul Rahman, Yukinori Kurokawa, F. Pardo, T. Sasatomi, Y. Kimura, Suguru Yamada, K. El Ouagari, F. Mosca, Yuichiro Doki, A.O. Singh, Goro Nakayama, Lara Lipton, H.J. An, B. Kato, Y. Ezoe, M. Salem, Samantha Bersani, B. Paule, O.E. Carranza Rua, Gabriela Kornek, L. Gray, S. Tamura, J.-F. Blanc, and L. Ginocchi

Subjects
medicine.medical_specialty, Gastrointestinal tumors, Performance status, business.industry, Hematology, Severe hypoxia, Neutropenia, medicine.disease, Rash, Gastroenterology, Discontinuation, Non colorectal, Oncology, Internal medicine, Toxicity, medicine, medicine.symptom, business
Abstract

Background TH-302 is a hypoxia targeted prodrug with a hypoxia-triggered 2-nitroimidazole component designed to release the DNA alkylator, bromo-isophosphoramide mustard (Br-IPM), when reduced in severe hypoxia. A randomized Phase 2B study (NCT01144455) was conducted to assess the benefit of G + T to standard dose G as first-line therapy of PAC. Materials and methods An open-label multi-center study of two dose levels of TH-302 (240 mg/m2 or 340 mg/m2) in combination with G versus G alone (randomized 1:1:1). G (1000 mg/m2) and T were administered IV over 30-60 minutes on Days 1, 8 and 15 of a 28-day cycle. Patients on the G could crossover after progression and be randomized to a G + T arm. The primary efficacy endpoint was a comparison of progression-free survival (PFS) between the combination arms and G alone (80% power to detect 50% improvement in PFS with one-sided alpha of 10%). Summary PFS outcome has previously been reported; more detailed PFS as well as the initial overall survival (OS) data are presented. Results 214 pts were treated; 164 (77%) Stage IV and 50 (23%) Stage IIIB. Median age 65 (range 29-86); 126 M/88 F; 40% ECOG 0/60% ECOG 1. Receiving 6 or more cycles: 32% G; 45% G + T240; 55% G + T340. Median PFS was 3.6 mo in G vs 5.5 mo in G + T240 (p = 0.031) and 6.0 mo in G + T340 (p = 0.008). Poorer prognostic factors (older age, poorer performance status, reduced albumin) were associated with larger treatment effect. Median OS was 7.0 mo in G vs 9.0 in G + T240 and 9.5 mo in G + T340. RECIST best response was 12% in G vs 17% in G + T240 and 27% in G + T340. CA19-9 decreases were significantly greater G + T340. A >50% CA19-9 decrease was 52% with G vs 50% with G + T240 and 70% with G + T340. AEs leading to discontinuation were: 16% G, 15% G + T240 and 11% G + T340. Rash (45% in G + T340) and stomatitis (36% in G + T340) were greater in combination, 4 pts Grade 3 rash. Grd 3/4 thrombocytopenia were 11% G, 39% G + T240 and 59% G + T340 and Grd 3/4 neutropenia were 28% G, 56% G + T240 and 59% G + T340. Conclusions The combination of G plus TH-302 improved the efficacy of G. A TH-302 dose of 340 mg2 was identified for future studies. Skin and mucosal toxicity and myelosuppression were the most common TH-302 related AEs with no increase in treatment discontinuation. Disclosure All authors have declared no conflicts of interest.

Published
2012
Full Text
View/download PDF

10. Single-incision laparoscopy-assisted subtotal gastrectomy for intractable gastric ulcer: a case report.

Author

Nonaka T, Hidaka S, Takafumi A, Fukuoka H, Takeshita H, Atsushi N, Sawai T, Yasutake T, and Nagayasu T

Subjects
Adult, Anastomosis, Roux-en-Y, Chronic Disease, Female, Hernia, Hiatal surgery, Herniorrhaphy methods, Humans, Intestinal Volvulus surgery, Length of Stay, Operative Time, Gastrectomy methods, Laparoscopy methods, Stomach Ulcer surgery
Abstract

Purpose: Single-incision laparoscopic surgery (SILS) offers excellent cosmetic results and may be associated with decreased postoperative pain and accelerated recovery. Although there have been reports of cholecystectomy and appendectomy using SILS, there have been few reports of gastric resection with intracorporeal reconstruction of the digestive tract using SILS. The first single-incision laparoscopic gastrectomy with intracorporeal reconstruction is reported., Methods: Preliminary experience with single-incision laparoscopic gastrectomy with intracorporeal reconstruction for a patient with an intractable gastric ulcer is reported., Results: Single-incision laparoscopy-assisted subtotal gastrectomy and Roux-en-Y reconstruction were performed. Operative time for gastrectomy and paraduodenal hernioplasty was 412 minutes, and blood loss was 90 g. No intraoperative or postoperative complications developed., Conclusions: Single-incision laparoscopy-assisted gastrectomy for intractable gastric ulcer is technically feasible. Intracorporeal reconstruction of the digestive tract was performed safely using a linear endoscopic stapler. This surgical approach is a further advance toward scarless surgery of the stomach.

Published
2012
Full Text
View/download PDF

11. Computed tomographic scanning and selective laparoscopy in the diagnosis of blunt bowel injury: a prospective study.

Author

Mitsuhide K, Junichi S, Atsushi N, Masakazu D, Shinobu H, Tomohisa E, and Hiroshi Y

Subjects
Adolescent, Adult, Aged, Aged, 80 and over, Child, Child, Preschool, Clinical Protocols, Female, Humans, Intestinal Perforation complications, Intestinal Perforation diagnosis, Intestinal Perforation surgery, Laparotomy, Male, Middle Aged, Peritonitis etiology, Prospective Studies, Tomography, X-Ray Computed, Wounds, Nonpenetrating complications, Wounds, Nonpenetrating diagnostic imaging, Wounds, Nonpenetrating surgery, Intestine, Small injuries, Laparoscopy, Wounds, Nonpenetrating diagnosis
Abstract

Background: We prospectively evaluated whether computed tomographic (CT) scanning and selective laparoscopy (LP) for the diagnosis of blunt bowel injury (BBI) could prevent nontherapeutic laparotomy and delayed diagnosis., Methods: Between April 1994 and May 2002, hemodynamically stable patients suspected of having BBI were enrolled in this study. Patients with hemodynamic instability or solid organ injuries with hemoperitoneum were excluded. All patients underwent a physical examination and contrast CT scanning at admission and once again approximately 12 hours (range, 6-24 hours) after admission. LP was performed under general anesthesia in patients who had local peritoneal signs and indirect CT signs (bowel thickening or isolated intraperitoneal fluid) or in whom abdominal pain or tenderness increased or intraperitoneal fluid increased on the repeat CT scan. The indications for a celiotomy were diffuse peritonitis, pneumoperitoneum on the abdominal CT scan, or bowel perforation visible on LP., Results: During the study period, 399 of 1,074 patients admitted for blunt torso injuries were enrolled in this study. Eleven patients underwent emergency celiotomy and 11 underwent LP immediately after admission to the emergency department. One nontherapeutic laparotomy was performed among the patients who underwent celiotomy. The LPs revealed seven bowel perforations and one mesenteric laceration. After a repeat CT scan, three and seven of the patients underwent laparotomy and LP, respectively. Four bowel perforations were found by LP. The remaining 198 patients were treated conservatively, and no complications related to a delayed BBI diagnosis occurred., Conclusion: CT scanning and selective LP can prevent nontherapeutic laparotomy and delayed diagnosis in patients with suspected BBI.

Published
2005
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results