1.The management of donor livers in living related donor liver transplantation
Chinese Journal of Organ Transplantation 1999;20(4):234-236
Objective To investigate the management of donor livers in partial living liver transplantation.Methods Nine cases of partial living related donor liver transplantation in Kyoto University served as subjects.The donor liver perfusion time and method,and preparation and preservation were studied.Results The donor livers in 9 cases were successfully removed with the liver removal accounting for 20%to 29%of the total livers.The recipients were alive well.Conclusion The donor liver perfusion time and method.and preparation and preservation were the keys in partial living related donor liver transplantation.
2.Aortic Surgery in Dialysis Patients
Hiroshi TANAKA ; Koichi MATSUO
Japanese Journal of Cardiovascular Surgery 2021;50(5):5-xxv-5-xxix
3.Treatment and prevention of biliary complications after living donor liver transplantation
Jianmin QIN ; Takada YASUTSUGU ; Uemoto SHINJI ; Tanaka KOICHI
Chinese Journal of Hepatobiliary Surgery 2008;14(10):684-687
Objective To discuss the treatment and prevention of bile duct complications after living donor liver transplantation. Methods The clinical data of 84 cases of living donor liver trans-plantation including 56 adult recipients and 28 pediatric recipients were analyzed. Amongst the 84 pa-tients, 66 had benign end-stage liver diseases and 18 hepatocellular carcinoma. Duct-to-duct biliary re-construction was performed in 50 cases. One recipient received an end-to-end and end-to-side anasto-mosis of hepatic duct of donor and hepatic duct and common bile duct of recipient and another under-went end-to-end anastomosis of hepatic duct of donor and hepatic duct and cystic duct of recipient while the other 32 cases hepaticojejunostomy. 4Fr or 6Fr stent was routinely inserted into bile duct af-ter biliary reconstruction and elicited from the anterior wall of common bile duct or lateral wall of jeju-nal caecum of recipient in all the 84 cases. Results Twenty-four cases had biliary complications and the incidence was 28.5 %. The incidence of biliary leakage was significantly different between duct-to-duct reconstruction and hepaticojejunostomy (8.3% νs 16.7%, P<0.05). The incidence of biliary stricture was markedly different between duct-to-duct reconstruction and hepaticojejunostomy (50% νs 16.7%, P<0.05). The biliary complication was remarkably different between single hepatic duct and multiple hepatic duct (20.8% νs 79.2, P<0.05). Four cases of biliary leakage were cured with con-servative treatment and the other 4 need reoperation. Four cases of biliary stricture were cured by way of endoscopic dilation and nose-biliary drainage, 2 cases turned to be better. Six cases were cured by conversion of hepaticojejunostomy and 4 turned to be better by way of percutaneous transhepatic biliar-y dilation and drainage. The recipients didn't die of biliary complications. Conclusion It is necessary to decrease the biliary complications after living donor liver transplantation, to be satisfactory blood supply and anastomotic technigue and select appropriato biliary reconstruction.
4.An operative case of aneurysm of peripheral pulmonary artery.
Junichi NINOMIYA ; Shigeo TANAKA ; Koichi HAYASHI ; Tetsuro MOROTA ; Tasuku SHOJI
Japanese Journal of Cardiovascular Surgery 1990;19(6):1124-1127
Aneurysm of peripheral pulmonary artery was rarely reported. A 51-year-old man who was pointed out a coin lesion at the right hilus region on the chest X-ray film complained back chest pain. Selective pulmonary arteriography revealed the peripheral pulmonary aneurysm of saccular dilatation running into the middle lobe. Aneurysmectomy was performed successfully and the patient returned to social work. Pathologic specimen revealed partly necrosis of medial cell. Eleven surgical cases including this case were reported in Japan. A brief review of the literature was made.
5.A Survey of the Awareness and Ability of Health Care Providers to Cope with Language Barriers at Medical Facilities in Hyogo, Japan
Tomohiro Nakata ; Nozomi Fujisawa ; Takako Yamada ; Koichi Tanaka
Journal of International Health 2011;26(4):331-340
OBJECTIVE:
This study aims to examine the awareness and ability of health care providers to cope with language barriers at medical facilities in Hyogo Prefecture, Japan, and to clarify the issues concerning health care for foreigners.
METHODS:
In total, 2100 copies of self-report questionnaires on issues of health care for foreigners were mailed to health care providers of 352 hospitals in Hyogo. The survey was conducted from February to March 2010.
RESULTS:
The response rate of medical facilities was 21.6% (76/352), whereas that of the health care providers was 15.2% (320/2100). Approximately 10% hospitals handled foreign patients at least once per month, and they dealt with patients using several languages, including English, Chinese, Korean, and others. The providers' main issue was communication with their foreign patients. The documents and booklets for guidance regarding some health care procedures at the hospitals were also poorly prepared. It is therefore exceedingly necessary for hospitals to provide common documents in different languages; moreover, the government or local authorities should arrange for public medical interpretation services.
DISCUSSION:
Medical facilities in Hyogo have been struggling to improve their linguistic capabilities, and it is difficult to indicate whether public organizations concerned with medical interpretation are being recognized. Efforts on the part of medical facilities and local and national governments, as well as cooperation of nonprofit organizations, are immensely essential to resolve the issue of multilingual health care. This survey suggests that to help people with diverse languages, the health care system in Japan should be improved rapidly, particularly with regard to the establishment of licensed professional medical interpreters.
6."Small-for-size Graft" and "Small-for-size Syndrome" in Living Donor Liver Transplantation.
Koichi TANAKA ; Yasuhiro OGURA
Yonsei Medical Journal 2004;45(6):1089-1094
The indications for living donor liver transplantation (LDLT) were successfully expanded from pediatric to adult cases last 15 years. During this process, graft type has been shifted from left side liver to right side liver. Although the introduction of right lobe graft can successfully increase the actual graft size in LDLT, problem related to "small-for-size grafts" have gradually come to light. "Small-for-size syndrome", such as poor bile production, delayed synthetic function, prolonged cholestasis, and intractable ascites, leading to septic complications and higher mortality, are neither specific nor inevitable in low-weight liver grafts. Many factors other than actual graft weight contribute to the occurrence of "small-for-size syndrome". In the clinical setting, surgical modification targeting portal hemodynamics and tissue congestion is a key to overcome "small-for-size syndrome". Until now, several therapeutic options were reported, but further elucidation of the pathogenesis in "small-for-size syndrome" will be a solution for improving the outcomes in adult-to-adult LDLT.
Humans
;
Liver/*pathology/*physiopathology
;
Liver Transplantation/*adverse effects
;
*Living Donors
;
Organ Size
;
Transplants
7.A Case of Surgical Therapy for Coronary Aneurysm with Kawasaki Disease
Koyu Tanaka ; Yoshihito Irie ; Takao Imazeki ; Kyu Rokkaku ; Masahito Saito ; Yohei Okita ; Koichi Ryu
Japanese Journal of Cardiovascular Surgery 2010;39(6):305-308
A 51-year-old man admitted to our hospital because of an ECG abnormality pointed out by his local doctor. He had been hospitalized for scarlet fever at age 10. A coronary artery CT scan showed coronary artery aneurysm of the left main trunk (LMT), and coronary angiography showed 3-vessel disease including a chronic total occlusion of the right coronary artery (RCA). We performed conventional coronary artery bypass grafting (CABG) using an arterial graft and aneurysmectomy. The patency of the graft was confirmed by coronary angiography postoperatively. The pathological diagnosis of the coronary aneurysm was Kawasaki disease. CABG is a standard procedure for coronary artery aneurysms with Kawasaki disease. However, there are no established treatment guidelines on whether to perform aneurysmectomy. We chose CABG with aneurysmectomy because of the possibility of intra-aneurysmal thrombosis leading to peripheral occlusion, and the cause of the coronary artery aneurysm could not be determined. However, even if additional treatment by percutaneous coronary intervention (PCI) is not possible, it is important to avoid occlusion of the graft.
8.A Case of Minimally Structural Deterioration in Starr-Edwards Caged-Disk Valve 39 Years after Implantation
Koji Akasu ; Tomofumi Fukuda ; Kosuke Saku ; Keishi Hashimoto ; Satoshi Kikusaki ; Koichi Arinaga ; Hiroyuki Tanaka
Japanese Journal of Cardiovascular Surgery 2017;46(6):282-284
The durability of the Starr-Edwards (SE) mitral caged-disk valve, model 6520, is not clearly known. We reported that SE mitral caged-disk valves implanted >20 years previously should be carefully followed up, and that SE caged-disk valves implanted >30 years previously should be electively replaced with modern prosthetic valves in our experience. We found the removed valve 39 years after implantation, which seemed minimal structural deterioration. The patient was discharged on the 10th postoperative day without any complications.
9.Ruptured Dacron Prosthesis by Blunt Trauma 8 Years after Implantation for Axillo-femoral Bypass.
Masami OCHI ; Hitoshi YAMAUCHI ; Masatoshi IKESHITA ; Shigeo TANAKA ; Tasuku SHOJI ; Koichi TAMURA
Japanese Journal of Cardiovascular Surgery 1992;21(3):287-291
A case of a 77-year-old man is reported, who developed late rupture of the knitted Darcon velour graft by blunt trauma 8 years after implantation for axillo-femoral bypass. Dacron fiber deterioration, which led the graft to fragility, might have played a main role in the clinical setting. This case clearly emphasizes that with its possibility to be deteriorated life-long care and follow up should be taken for the patients who undergo arterial reconstructive surgery using Dacron prostheses.
10.Cabrol, Technique Performed on a Patient with Corrected Transposition of the Great Arteries, Complicated by Annuloaortic Ectasia and Aortic Regurgitation.
Noriyoshi Kutsukata ; Koichi Terada ; Masami Ochi ; Tetsuo Asano ; Masafumi Hioki ; Shigeo Tanaka
Japanese Journal of Cardiovascular Surgery 1998;27(2):104-106
Cabrol's technique was performed on a patient with corrected transposition of the great arteries (SLL), complicated by annuloaortic ectasia (AAE) and aortic regurgitation (AR). The patient, a 52-year-old male, complained mainly of dyspnea on physical exertion. In 1983, he underwent implantation of a pacemaker to treat advanced atrioventricular block. In 1994, his cardiac function deteriorated to NYHA III. Cardiac catheter examinations exhibited 2nd degree Seller's aortic valve insufficiency and 2nd degree insufficient closure of the left atrioventricular valve. The patient was Cardell classification B3, with a Shaher Type 4 coronary artery. A composite graft was made using a 27mm St. Jude Medical valve and a 30mm woven Dacron graft. The left atrioventricular valve had three leaflets, accessible from the right atrium using the septal approach. Kay's method was used to suture the posterior leaflet and reduce regurgitation. The patient has made favorable progress during the two-year follow-up period.