Document Detail

A novel technique for cardiopulmonary bypass using vacuum system for venous drainage with pressure relief valve: an experimental study.
MedLine Citation:
PMID:  9555965     Owner:  NLM     Status:  MEDLINE    
To decrease the circuit priming volume, develop safety, and simplify the equipment, a cardiopulmonary bypass (CPB) circuit using a vacuum suction venous drainage system with a pressure relief valve was developed. The efficacy of this vacuum system was compared to that of a conventional siphon system. The system contains a powerful vacuum generator and a pressure relief valve to keep the negative pressure constant when blood suction is used. Using 8 mongrel dogs, the feasibility and the efficacy of this CPB system was tested. The changes in the negative pressure in the reservoir were within 5 mm Hg whether the suction lines were switched on or off. In all animals the amount of blood in the venous reservoir was stable throughout bypass. The decrease of priming volume was from 725 ml (siphon system) to 250 ml (vacuum system). At the end of CPB, the levels of hemoglobin in the vacuum system were significantly higher than those in the siphon system. These results demonstrated that this vacuum drainage system can provide simplification and a miniaturization of the cardiopulmonary bypass circuit resulting in low hemodilution during CPB.
S Taketani; Y Sawa; T Masai; H Ichikawa; K Kagisaki; T Yamaguchi; S Ohtake; H Matsuda
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Artificial organs     Volume:  22     ISSN:  0160-564X     ISO Abbreviation:  Artif Organs     Publication Date:  1998 Apr 
Date Detail:
Created Date:  1998-06-17     Completed Date:  1998-06-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7802778     Medline TA:  Artif Organs     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  337-41     Citation Subset:  IM    
First Department of Surgery, Osaka University Medical School, Suita, Japan.
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MeSH Terms
Cardiopulmonary Bypass / instrumentation,  methods*
Feasibility Studies

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

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