Document Detail

Left intraventricular balloon pump optimization during intractable cardiac arrest.
MedLine Citation:
PMID:  8841857     Owner:  NLM     Status:  MEDLINE    
This work aims to determine optimal balloon shape and volume during left intraventricular balloon pumping (IABP) in the fibrillating dog heart. A balloon volume equal to the left ventricular end-diastolic volume (LVEDV) maintained a higher systolic aortic pressure and flow (106.4 +/- 2.7 mmHg and 84.7 +/- 2.35 ml/kg/min, x +/- SEM, respectively) than a 25% smaller (97.8 +/- 3.3 mmHg, P = 0.002 and 63.7 +/- 4.1 ml/kg/min, P = 0.002, respectively) or a 25% larger balloon (87.4 +/- 2.3 mmHg, P = 0.002 and 70.9 +/- 3.4 ml/kg/min, P = 0.002, respectively). Among 5 different balloon shapes tested, a pear-shaped balloon inflated from the apex to the base of the left ventricle induced the highest (P varying from 0.042 to 0.01, compared to the remaining balloon shapes) systolic aortic pressure and flow (104.6 +/- 4.5 mmHg and 77.9 +/- 1.7 mg/kg/min, respectively). In conclusion, a pear shaped balloon, inflated to a volume equal to the LVEDV, from the apex to the base of the left ventricle, induced an optimal hemodynamic effect during LVBP.
S F Stamatelopoulos; L Kochilas; N S Saridakis; N A Zakopoulos; S D Moulopoulos
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The International journal of artificial organs     Volume:  19     ISSN:  0391-3988     ISO Abbreviation:  Int J Artif Organs     Publication Date:  1996 Jul 
Date Detail:
Created Date:  1996-12-12     Completed Date:  1996-12-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7802649     Medline TA:  Int J Artif Organs     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  422-30     Citation Subset:  IM    
Department of Clinical Therapeutics, Alexandra General Hospital, Athens University Medical School, Greece.
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MeSH Terms
Analysis of Variance
Blood Pressure / physiology
Disease Models, Animal
Heart Arrest / therapy*
Heart-Assist Devices / standards*
Intra-Aortic Balloon Pumping*

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