Document Detail


Is complete heart block after surgical closure of ventricular septum defects still an issue?
MedLine Citation:
PMID:  16928514     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: A serious complication after surgical closure of ventricular septal defect (VSD) is complete heart block. In this retrospective study, we reviewed the incidence of complete heart block after surgical closure of a VSD at Great Ormond Street Hospital from 1976 to 2001 to identify any particular anatomic features that still predisposed patients to surgically-induced complete heart block and to provide anatomic guidelines to avoid this in future. METHODS: Data were extracted from our local database for patients having (1) isolated VSD or VSD in the setting of (2) tetralogy of Fallot with pulmonary stenosis or (3) tetralogy of Fallot with pulmonary atresia; (4) absent pulmonary valve syndrome; (5 and 6) coarctation or interruption of the aortic arch; and (7) subaortic fibrous shelf. We carefully reviewed the operative notes from all patients with postoperative complete heart block to discover any predisposing anatomical reasons to explain the complication. RESULTS: Two thousand seventy-nine patients had a VSD closure. Permanent complete heart block developed in 7 of 996 patients (0.7%) with an isolated defect and in 1 of 847 patients (0.1%) with tetralogy of Fallot. Four more patients had postoperative complete heart block. CONCLUSIONS: Instances of iatrogenic complete heart block continue to occur after surgical VSD closure, either because of unexpected biological variations or because of unawareness of the disposition of the atrioventricular conduction axis in particular circumstances. This report emphasizes the latter aspect in details and suggests a risk of iatrogenic complete heart block of less than 1%.
Authors:
Henrik Ø Andersen; Marc R de Leval; Victor T Tsang; Martin J Elliott; Robert H Anderson; Andrew C Cook
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  82     ISSN:  1552-6259     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-08-24     Completed Date:  2006-09-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  948-56     Citation Subset:  AIM; IM    
Affiliation:
Department of Cardiothoracic Surgery, Rigshospitalet, Denmark. hoandersen@dadlnet.dk
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MeSH Terms
Descriptor/Qualifier:
Aortic Coarctation / surgery
Bundle of His / injuries
Cardiac Surgical Procedures / mortality,  statistics & numerical data
Child, Preschool
Female
Heart Block / epidemiology,  etiology*,  surgery
Heart Septal Defects, Ventricular / surgery*
Humans
Iatrogenic Disease
Incidence
Infant
London / epidemiology
Male
Pacemaker, Artificial
Postoperative Complications / epidemiology,  etiology*,  surgery
Pulmonary Atresia / surgery
Pulmonary Valve / abnormalities
Pulmonary Valve Stenosis / surgery
Retrospective Studies
Risk
Stress, Mechanical
Suture Techniques / adverse effects
Tetralogy of Fallot / surgery
Comments/Corrections
Comment In:
Ann Thorac Surg. 2006 Sep;82(3):956-7   [PMID:  16928515 ]

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


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