Document Detail


Pacemaker-induced mitral regurgitation as a cause of refractory congestive heart failure during pacing therapy in a patient with hypertrophic obstructive cardiomyopathy.
MedLine Citation:
PMID:  16596049     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This report describes a woman with hypertrophic obstructive cardiomyopathy in whom initial hemodynamic improvement by dual chamber (DDD) pacing with short atrioventricular delay was excellent, but severe mitral regurgitation developed during the subsequent follow-up period, resulting in refractory congestive heart failure. There were two possible explanations for the origin of the complicating mitral regurgitation in this patient: pacing-induced semiclosure of the mitral valve, or left ventricular asynchrony caused by right ventricular pacing. Heart failure in patients with hypertrophic obstructive cardiomyopathy who undergo placement of a DDD pacemaker to improve not only mitral regurgitation but also heart failure symptoms can be associated with systolic mitral regurgitation as the cause of failure in DDD pacing therapy.
Authors:
Hajime Kataoka
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Congestive heart failure (Greenwich, Conn.)     Volume:  12     ISSN:  1527-5299     ISO Abbreviation:  Congest Heart Fail     Publication Date:    2006 Mar-Apr
Date Detail:
Created Date:  2006-04-05     Completed Date:  2006-06-13     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9714174     Medline TA:  Congest Heart Fail     Country:  United States    
Other Details:
Languages:  eng     Pagination:  112-5     Citation Subset:  IM    
Affiliation:
Nishida Hospital, Oita, Japan. n-keiri@nisida-med.jp
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MeSH Terms
Descriptor/Qualifier:
Aged
Cardiac Pacing, Artificial / adverse effects*
Cardiomyopathy, Hypertrophic / therapy*
Female
Heart Failure / etiology*
Humans
Mitral Valve Insufficiency / etiology*

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


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