Document Detail

Restrictive physiology in tetralogy of Fallot: exercise and arrhythmogenesis.
MedLine Citation:
PMID:  16868099     Owner:  NLM     Status:  MEDLINE    
The effect of right ventricular restrictive physiology on exercise capacity and arrhythmogenesis after correction of tetralogy of Fallot was assessed in 80 patients aged 7.9 +/- 3.6 years. Right ventricular restrictive physiology was defined as the presence of an A wave across the pulmonary artery on 2-dimensional echocardiography. At the 6 month follow-up, 52 patients had restrictive physiology (group 1). A transannular patch was used in 36 patients in group 1 (62%) and in 19 (86%) of the 28 patients without restrictive physiology (group 2). Maximum heart rate attained (69% vs. 77%), maximum predicted heart rate (211 +/- 12.6 vs. 226 +/- 24.2 beats x min(-1)), and metabolic equivalents (7.6 +/- 3.2 vs. 8.1 +/- 2.6) were higher in group 2, but not significantly. The chronotropic index was similar in both groups. In group 1, 14% of patients presented with ventricular premature complexes at 6 months. No effect on exercise capacity and arrhythmogenesis could be attributed to restrictive physiology, but both groups had chronotropic incompetence compared to normal children.
Kaushalendra S Rathore; Surendra K Agrawal; Aditya Kapoor
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Asian cardiovascular & thoracic annals     Volume:  14     ISSN:  1816-5370     ISO Abbreviation:  Asian Cardiovasc Thorac Ann     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-07-26     Completed Date:  2008-05-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9503417     Medline TA:  Asian Cardiovasc Thorac Ann     Country:  Singapore    
Other Details:
Languages:  eng     Pagination:  279-83     Citation Subset:  IM    
Department of Cardiovascular and Thoracic Surgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India.
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MeSH Terms
Arrhythmias, Cardiac / etiology*
Child, Preschool
Exercise Tolerance*
Prospective Studies
Tetralogy of Fallot / complications,  physiopathology*,  surgery
Ventricular Function, Right*

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