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Influence of size disparity of transplanted hearts on cardiac growth in infants and children.
MedLine Citation:
PMID:  22036258     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: We aimed to evaluate the influence of size disparity of the transplanted heart on cardiac growth in infant and child recipients by comparing donor body surface area (BSA) and cardiac dimensions during transplantation to the corresponding parameters of the recipient over a period of time. METHODS: A retrospective review of medical and echocardiographic records of 147 children (5.3 ± 4.0; median, 4.1; range, 1 month-15 years) who underwent orthotopic heart transplantation was done. The patients were divided into age groups as follows: less than 1 year (n = 23), 1 to 2 years (n = 26), more than 2 to 5 years (n = 18), more than 5 to 10 years (n = 27), and more than 10 to 15 years (n = 53). Donor/recipient BSA ratio was determined during transplantation. Cardiac dimensions were measured 30 days after transplantation and compared at 1 year, 2 to 5 years, and 5 to 10 years after transplantation. RESULTS: There were no significant differences in the ventricular end-diastolic diameter, volumes, and mass among those with a donor/recipient BSA ratio of less than 0.80, 0.8 to 1.2, and more than 1.2 (P = .80, .44, and .48, respectively). In all the cardiac dimensions and volumes measured, donor-recipient mismatch did not influence the continuous growth of the heart, as indicated by the measured parameters, in accordance with the recipients' increase in BSA over time. All calculated Z-scores at 1 year, 2 to 5 years, and 6 to 10 years after transplantation were normal when indexed to BSA. CONCLUSIONS: This study demonstrates that despite size disparity of a transplanted heart, it undergoes normal growth in diastolic dimensions, volumes, and myocardial mass over time as appropriate for body growth after cardiac transplantation in infants and children.
Authors:
Eva Maria Delmo Walter; Michael Huebler; Stephan Schubert; Hans Lehmkuhl; Yuguo Weng; Felix Berger; Roland Hetzer
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-26
Journal Detail:
Title:  The Journal of thoracic and cardiovascular surgery     Volume:  -     ISSN:  1097-685X     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376343     Medline TA:  J Thorac Cardiovasc Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 The American Association for Thoracic Surgery. Published by Mosby, Inc. All rights reserved.
Affiliation:
Departments of Cardiothoracic and Vascular Surgery, Deutsches Herzzentrum Berlin, Berlin, Germany.
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