Document Detail


Predictors of early post-cardiac transplant exercise capacity.
MedLine Citation:
PMID:  10609189     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: This study was conducted to identify which pre- and perioperative clinical parameters were predictive of predischarge submaximal exercise capacity and early postdischarge maximal exercise capacity in cardiac transplant recipients. METHODS: We studied 24 patients (mean age = 46; 25% African American) who underwent cardiac transplantation followed by an early (immediately posttransplant) postoperative exercise training program. The patients' submaximal exercise capacity was measured at hospital discharge (25 days posttransplant) using the 6-minute distance walk test. Maximal cardiopulmonary exercise testing was done within 4 months of hospital discharge (68 days) to measure peak exercise oxygen consumption (VO2) and to estimate peak exercise capacity as measured by metabolic equivalents (METs). Six clinical variables were assessed for their relationship with predischarge submaximal exercise capacity and 10 clinical variables were evaluated for their relationship with early posttransplant maximal exercise capacity. RESULTS: Predischarge submaximal exercise capacity was correlated with postdischarge estimated METs (r = 0.43; P = 0.04). No predictors of predischarge submaximal exercise capacity were identified. Predictors of estimated peak exercise METs following discharge were younger age, longer time since resolution of rejection, and shorter postoperative hospitalization. Younger age was the only predictor of peak VO2. CONCLUSION: Postoperative physical training may improve exercise capacity early after transplantation and minimize effects of preoperative clinical factors that could negatively affect exercise capacity. Interpretation of these results, however, is limited by the small sample and absence of a nonexercising control group. Older recipients, those with a longer length of hospital stay, and shorter duration of time since resolution of rejection may be at risk of reduced early postoperative maximal exercise capacity. Identification of these predictors is important to maximize early reconditioning efforts and plan outpatient rehabilitation.
Authors:
J Salyer; D V Jewell; R J Quigg
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of cardiopulmonary rehabilitation     Volume:  19     ISSN:  0883-9212     ISO Abbreviation:  J Cardiopulm Rehabil     Publication Date:    1999 Nov-Dec
Date Detail:
Created Date:  2000-01-20     Completed Date:  2000-01-20     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8511296     Medline TA:  J Cardiopulm Rehabil     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  381-8     Citation Subset:  IM    
Affiliation:
Medical College of Virginia Hospitals, Richmond, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Exercise Test
Exercise Tolerance*
Female
Heart Transplantation / physiology*,  rehabilitation*
Humans
Male
Middle Aged
Oxygen Consumption
Predictive Value of Tests
Regression Analysis

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


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