Document Detail

Late onset of heart block after open heart surgery for congenital heart disease.
MedLine Citation:
PMID:  17768649     Owner:  NLM     Status:  MEDLINE    
Late onset of complete heart block is a potentially dangerous complication after open heart surgery for congenital heart disease. The characteristics of patients with late-onset heart block have not been well described. A retrospective review of a pacemaker database was done to identify patients who presented with new onset heart block between 1988 and 2006, after they had been discharged from the hospital after open heart surgery with normal AV conduction. Fifteen patients were identified. The age at the time of the last surgery before the onset of heart block was 2.0 +/- 3.2 years (range: 3 days to 10 years). Nine had a ventricular septal defect repair, four had an atrioventricular canal, and two other patients had other types of heart defect. The last EKG available for analysis before the onset of heart block had been obtained 5.1 +/- 6.5 years (range: 7 days to 16 years) after surgery. The symptoms at the time of presentation were variable. Four patients presented with fatigue or exercise intolerance, two with syncope, two with congestive heart failure, and one with irritability, and the remaining six patients were diagnosed during routine follow-up. The time between open heart surgery and placement of a permanent pacemaker was 6.8 +/- 7.3 years (range: 2 months to 19 years). There were seven patients in whom the onset of heart block was more than 6 years after surgery. Late onset of complete heart block after open heart surgery could be dangerous when presenting without warning. These data would support the notion that patients should be followed for life after repair of congenital heart defects, with special attention to the conduction system, particularly after repair of septal defects.
Leonardo Liberman; Robert H Pass; Allan J Hordof; Henry M Spotnitz
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Publication Detail:
Type:  Journal Article     Date:  2007-09-01
Journal Detail:
Title:  Pediatric cardiology     Volume:  29     ISSN:  0172-0643     ISO Abbreviation:  Pediatr Cardiol     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-18     Completed Date:  2008-05-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003849     Medline TA:  Pediatr Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  56-9     Citation Subset:  IM    
Pediatric Arrhythmia Service, Department of Pediatrics, Morgan Stanley Children's Hospital, Columbia University, New York, NY, USA.
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MeSH Terms
Cardiac Surgical Procedures / adverse effects*
Child, Preschool
Heart Block / diagnosis,  etiology*,  therapy
Heart Defects, Congenital / surgery*
Heart Septal Defects, Ventricular / surgery
Infant, Newborn
Pacemaker, Artificial
Retrospective Studies
Time Factors

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

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