Document Detail

Static left latissimus dorsi cardiomyoplasty: effect on left ventricular function.
MedLine Citation:
PMID:  8312303     Owner:  NLM     Status:  MEDLINE    
When the latissimus dorsi is used for ventricular augmentation in cardiomyoplasty, a delay of several weeks occurs before the muscle revascularizes, adheres to the heart, and is transformed to fatigue-resistant status. This study analyzes the effect of static (unstimulated) cardiomyoplasty on left ventricular function. Four mongrel dogs underwent staged left latissimus dorsi cardiomyoplasty. Left ventricular pressure was measured with a micromanometer catheter. Left ventricular volume was measured by sonomicrometry. Cardiac output, heart rate, preload recruitable stroke work, maximum elastance, left ventricular end-diastolic volume, left ventricular end-diastolic pressure, stroke work, and the diastolic relaxation constant were measured before and immediately after cardiomyoplasty with the myoplasty static. Results, expressed as mean +/- standard error of the mean, showed no significant differences in indexes of systolic function (stroke work, 1017 +/- 223 to 984 +/- 403; preload recruitable stroke work, 110 +/- 13 to 115 +/- 19.8; maximum elastance, 10.38 +/- 5.6 mm Hg/ml to 13.59 +/- 6.5 mm Hg/ml; cardiac output 4.51 +/- 0.43 L/min to 4.21 +/- 0.34 L/min) or diastolic function (left ventricular end-diastolic volume, 21 +/- 5.2 ml to 20 +/- 5.3 ml; left ventricular end-diastolic pressure, 13 +/- 3.5 mm Hg to 15 +/- 3 mm Hg; diastolic relaxation constant 42.8 +/- 5.2 msec to 42.5 +/- 4.5 msec). Heart rate also remained unchanged (131 +/- 8.9 beats/min to 140 +/- 9.8 beats/min). The static (unstimulated) left latissimus dorsi cardioplasty can be done with little effect on left ventricular systolic or diastolic function in the normal canine heart.
R R Lazzara; S E Park; B L Cmolik; D R Trumble; J A Magovern
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation     Volume:  12     ISSN:  1053-2498     ISO Abbreviation:  J. Heart Lung Transplant.     Publication Date:    1993 Nov-Dec
Date Detail:
Created Date:  1994-03-23     Completed Date:  1994-03-23     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9102703     Medline TA:  J Heart Lung Transplant     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1024-8     Citation Subset:  IM    
Department of Surgery, Allegheny General Hospital, Pittsburgh, PA 15212.
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MeSH Terms
Assisted Circulation*
Cardiac Output
Cardiac Surgical Procedures*
Heart Rate
Stroke Volume
Surgical Flaps*
Ventricular Function, Left*
Grant Support

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

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