Document Detail

Improvement of left ventricular function after changing the pacing site in a child with isolated congenital complete atrioventricular block and dilated cardiomyopathy.
MedLine Citation:
PMID:  15793658     Owner:  NLM     Status:  MEDLINE    
We report a case of isolated congenital complete atrioventricular block with left ventricular dysfunction after pacemaker implantation that improved after the pacing site was changed. During the neonatal period, a pacemaker wire was implanted on the right ventricular epicardium and pacing was initiated. Decreased ejection fraction and a perfusion defect around the septum on myocardial scintigraphy were observed during follow-up. Induced left bundle branch block was thought to be causing interventricular asynchrony, and the pacing site was change to the left ventricular epicardium. Ejection fraction improved and the perfusion defect resolved. Lead relocation may be useful for left ventricular dysfunction that develops during right ventricular pacing.
H Takasugi; K Watanabe; Y Ono; S Echigo
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Pediatric cardiology     Volume:  26     ISSN:  0172-0643     ISO Abbreviation:  Pediatr Cardiol     Publication Date:    2005 Jan-Feb
Date Detail:
Created Date:  2005-03-28     Completed Date:  2005-05-03     Revised Date:  2008-02-20    
Medline Journal Info:
Nlm Unique ID:  8003849     Medline TA:  Pediatr Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  87-9     Citation Subset:  IM    
Department of Pediatrics, National Cardiovascular Center, 5-7-1, Suita, Osaka 565-8565, Japan.
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MeSH Terms
Cardiac Pacing, Artificial* / adverse effects,  methods
Cardiomyopathy, Dilated / physiopathology,  radionuclide imaging,  therapy*
Child, Preschool
Heart Block* / congenital
Stroke Volume
Ventricular Dysfunction, Left / etiology,  physiopathology

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