Document Detail


Clinical effects of ventricular assist system in end-stage cardiac failure. Advantages of left ventricular blood drainage for recovery from cardiac dysfunction.
MedLine Citation:
PMID:  10965617     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: Heart transplantation is extremely limited currently in Japan. As a consequence ventricular assist system implantation is employed the patient falls into end-stage cardiogenic shock. This preliminary report describes our initial clinical experience with use of 2 kinds of ventricular assist system for 13 Japanese patients. METHODS: 7 patients were supported by a left ventricular assist system with blood drainage from the left atrium (LA drainage Group) using a Toyobo ventricular assist system, while another 6 patients were supported by a left ventricular assist system with blood drainage from the left ventricle (LV drainage Group) using the Toyobo ventricular assist system (1 patient) or TCI-LVAS (5 patients). RESULTS: The average duration of ventricular assist system support in the LV drainage Group was 112 days including two on-going patients (now at 39 days and 241 days) and in the LA drainage Group was 49 days. The average left ventricular ejection fraction at 3 weeks after ventricular assist system implantation was improved from 12.3 to 54% using the TCI-LVAS and from 14 to 33% using the Toyobo ventricular assist system with drainage from the left ventricle. However, this was decreased from 20 to 10% using the Toyobo ventricular assist system with drainage from the left atrium. The ventricular assist system was explanted in 4 patients (31%) with recovery of cardiac dysfunction and 3 were long survivors. The 2 on-going patients are awaiting heart transplantation. Thus the current survival rate overall is 38%. The survival rate (67%) is excellent in the LV drainage Group including 2 long survivors after explantation. CONCLUSION: Ventricular assist system support with drainage from the left ventricle seems to be more advantageous for cardiac functional recovery than from the left atrium for end-stage heart failure.
Authors:
S Kyo; H Tanabe; H Asano; H Ohuchi; H Nogaki; M Ishikawa; Y Yokote; T Koyanagi; H Noda; R Omoto
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  The Japanese journal of thoracic and cardiovascular surgery : official publication of the Japanese Association for Thoracic Surgery = Nihon Kyōbu Geka Gakkai zasshi     Volume:  48     ISSN:  1344-4964     ISO Abbreviation:  Jpn. J. Thorac. Cardiovasc. Surg.     Publication Date:  2000 Jul 
Date Detail:
Created Date:  2000-10-19     Completed Date:  2000-10-19     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  100884261     Medline TA:  Jpn J Thorac Cardiovasc Surg     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  440-6     Citation Subset:  IM    
Affiliation:
Department of Surgery, Saitama Medical School, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Heart-Assist Devices*
Humans
Male
Shock, Cardiogenic / mortality,  therapy*
Ventricular Dysfunction, Left / therapy*
Ventricular Function, Left / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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