Document Detail

A single skeletal muscle powered ventricle that assists both systemic and pulmonary circulations.
MedLine Citation:
PMID:  8573849     Owner:  NLM     Status:  MEDLINE    
Extraaortic counterpulsation using skeletal muscle powered ventricles (SMPVs) has been studied mainly for the purpose of assisting the systemic circulation. The purpose of this study was to investigate the possibility of assisting both the systemic and pulmonary circulations using a single SMPV. An SMPV that counterpulses the systemic circulation is placed beside the right atrium (RA) or the right ventricle (RV), the former after procedures such as a Fontan operation, and the latter in cases of biventricular failure. Because the SMPV dilates passively during cardiac systole, it is designed to press the RA or the RV directly from outside. This study is a preliminary report, and only the ability of a specially constructed SMPV to dilate was assessed. Using seven dogs with heart failure, the SMPV dilated with an internal pressure of 88 mmHg and 1.0 cm, while the volume inside increased by 10.8 ml. From these results, it is suggested that the SMPV has enough dilating power to press the RA or to assist the RV while counterpulsing the systemic circulation.
S Taguchi; R Yozu; R Takahashi; H Iseki; H Shimizu; S Kawada
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  ASAIO journal (American Society for Artificial Internal Organs : 1992)     Volume:  41     ISSN:  1058-2916     ISO Abbreviation:  ASAIO J.     Publication Date:    1995 Jul-Sep
Date Detail:
Created Date:  1996-03-12     Completed Date:  1996-03-12     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9204109     Medline TA:  ASAIO J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  M472-5     Citation Subset:  IM    
Department of Surgery, School of Medicine, Keio University, Tokyo, Japan.
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MeSH Terms
Bioelectric Energy Sources*
Blood Circulation
Blood Pressure
Cardiomyoplasty / methods*
Evaluation Studies as Topic
Heart-Assist Devices*
Muscle, Skeletal / physiology*
Pulmonary Circulation

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