| Pacemaker-induced change in prosthetic valvular sounds. | |
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MedLine Citation:
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PMID: 1261315 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Variable intensity and timing of valvular sounds were noted in two patients with permanent pacemakers and prosthetic valves. In the first patient, who had a mitral and a tricuspid prosthesis, valvular opening sounds became widely separated with a change from nodal to ventricular paced rhythm. In a second patient, who had a mitral prosthesis in sinus rhythm with first-degree atrioventricular block, a very quiet closing sound increased markedly in intensity with the onset of ventricular pacing. The mechanism for these changes is described using a technique which at brief intervals throughout the cardiac cycle permitted documentation of simultaneously recorded phonocardiogram, electrocardiogram, and pulse tracings with a visible image of the prosthesis. In the usual patient with a prosthetic valve auscultatory changes should arouse a suspicion of malfunction; however, in the relatively uncommon patient with a prosthesis and an artificial pacemaker, it should be recognized that auscultatory changes may well have a physiologic explanation. |
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Authors:
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D F Brown; G Prescott |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Chest Volume: 69 ISSN: 0012-3692 ISO Abbreviation: Chest Publication Date: 1976 Apr |
Date Detail:
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Created Date: 1976-07-06 Completed Date: 1976-07-06 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0231335 Medline TA: Chest Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 490-4 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Electrocardiography Female Heart Auscultation* Heart Sounds* Heart Valve Prosthesis* Humans Male Middle Aged Mitral Valve / surgery Pacemaker, Artificial* Phonocardiography Tricuspid Valve / surgery |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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