Document Detail

Evaluation of myocardial performance index to predict mild rejection in cardiac transplantation.
MedLine Citation:
PMID:  15237696     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Early diagnosis of heart transplant rejection is mandatory, since even mild rejection can rapidly progress to more severe rejection. Noninvasive diagnosis of heart transplant rejection still remains a challenge. HYPOTHESIS: The purpose of the study was to determine a possible association between myocardial performance index (MPI) and biopsy score of the heart transplant. METHODS: This is a retrospective cohort analysis of 99 complete Doppler echocardiographic studies from 24 consecutive patients (23 men) performed within 24 h of endomyocardial biopsy. Mean age of the cohort was 50 +/- 9 years and mean time from transplantation was 19 +/- 21 months (1-81). All patients were in sinus rhythm. Myocardial performance index was calculated as the ratio of isovolumic contraction time plus isovolumic relaxation time divided by ejection time. Left ventricular dimensions, left ventricular mass, ejection fraction, and a number of Doppler indices (E-point velocity, A-point velocity, deceleration time, and deceleration slope) were also measured. The International Society for Heart and Lung Transplantation (ISHLT) grading system was used for the classification of endomyocardial biopsies. RESULTS: Myocardial performance index was significantly prolonged (0.60 +/- 0.13, 0.68 +/- 0.08, 0.75 +/- 0.20, in biopsy scores 0, IA, and IB, respectively; p<0.001). Isovolumic contraction time was significantly prolonged; isovolumic relaxation time was not significantly changed. Ejection time and deceleration time were significantly shortened. Multivariate stepwise regression analysis revealed that MPI and deceleration time were the only independent predictors of biopsy score (r=0.48, F=10.53, p<0.0001). CONCLUSION: Myocardial performance index seems to be a useful adjunct in the follow-up of cardiac transplant patients. These preliminary data suggest that a larger study may be indicated to clarify the relevance of myocardial performance index.
Savvas T Toumanidis; Electra S Papadopoulou; Nikolaos S Saridakis; Anna T Kalantaridou; Emmanuel V Agapitos; John N Nanas; Stamatios F Stamatelopoulos
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical cardiology     Volume:  27     ISSN:  0160-9289     ISO Abbreviation:  Clin Cardiol     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-07-07     Completed Date:  2004-10-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7903272     Medline TA:  Clin Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  352-8     Citation Subset:  IM    
Department of Clinical Therapeutics, School of Medicine, University of Athens, Alexandra Hospital, Athens, Greece.
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MeSH Terms
Echocardiography, Doppler
Graft Rejection / immunology,  prevention & control,  ultrasonography*
Heart Transplantation / adverse effects*,  immunology,  ultrasonography
Middle Aged
Myocardial Contraction / immunology,  physiology*
Myocardium / immunology,  pathology*
Reference Values
Retrospective Studies
Time Factors

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

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