Document Detail

Ventricular premature contraction after repair of tetralogy of Fallot--the influence of postoperative factors, particularly the right ventricular regional wall motion.
MedLine Citation:
PMID:  2473225     Owner:  NLM     Status:  MEDLINE    
The presence and severity of ventricular premature contraction (VPC) in 35 patients with tetralogy of Fallot (TF) were studied, 5 to 10 years after intracardiac repair (ICR), using treadmill exercise testing and 24-hour ambulatory monitoring. VPCs were observed in 24 patients (68.6%). The patients were classified into two groups according to the types of VPCs: group A (23 patients) without VPCs or with VPCs of Lown's grade 1 and group B (12 patients) with VPCs of Lown's grade 2, 3 or 4. Group B patients were found to have significantly higher right to left ventricular peak-systolic pressure ratios and higher right ventricular peak systolic pressures than those of group A. But there were no significant differences between the two groups in operative age, the time lapse between ICR and evaluation, the duration of exercise and so on. Group B patients also showed significantly decreased right ventricular regional wall motions in the right ventricular outflow tracts (ROTs), indicating akinetic or paradoxical movements than group A patients. It is thought that postoperative right ventricular hypertension and the akinetic or paradoxical wall movement of the ROT may have some effect on the genesis of postoperative VPCs after repair of TF.
Y Kori; K Suwa; K Shiroma
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese circulation journal     Volume:  53     ISSN:  0047-1828     ISO Abbreviation:  Jpn. Circ. J.     Publication Date:  1989 Mar 
Date Detail:
Created Date:  1989-08-23     Completed Date:  1989-08-23     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7806868     Medline TA:  Jpn Circ J     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  213-8     Citation Subset:  IM    
Department of Cardiovascular Surgery, Tokyo Women's Medical College Second Hospital, Japan.
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MeSH Terms
Cardiac Complexes, Premature / etiology*
Child, Preschool
Exercise Test
Myocardial Contraction
Postoperative Complications
Tetralogy of Fallot / physiopathology,  surgery*

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