| Optimization of atrioventricular delay and follow-up in a patient with congestive heart failure with an implanted DDD pacemaker: case report. | |
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MedLine Citation:
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PMID: 11153821 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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It has been reported that cardiac function can be improved by implanting a DDD pacemaker (PM) and setting a short atrioventricular (AV) delay in patients with impaired cardiac function. A previous report found that the critical AV delay that induces diastolic mitral regurgitation (MR) may represent the upper limit of the optimal AV delay. The optimal AV delay can be predicted by a simple method: slightly prolonged AV delay minus the interval between the end of the atrial kick and complete closure of the mitral valve (duration of diastolic MR) at the AV delay setting. The patient was a 84-year-old man with an old myocardial infarction. He had repeated admissions to hospital for congestive heart failure. ECG showed prolongation of the PQ interval (0.28 s) and complete left bundle branch block. Cardiac function was improved by AV sequential pacing when the AV delay was set at 120ms. After DDD-PM implantation, the cardiothoracic ratio decreased from 57 to 45% and cardiac function was improved from New York Heart Association class III to I. The AV delay was optimized during follow-up. Four years after PM implantation, the patient was in good condition without further hospital admission. |
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Authors:
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T Ishikawa; S Sumita; M Kosuge; I Kobayashi; T Sugano; T Shigemasa; T Endo; K Kimura; T Usui; S Umemura |
Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Japanese circulation journal Volume: 65 ISSN: 0047-1828 ISO Abbreviation: Jpn. Circ. J. Publication Date: 2001 Jan |
Date Detail:
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Created Date: 2001-01-10 Completed Date: 2001-05-17 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7806868 Medline TA: Jpn Circ J Country: Australia |
Other Details:
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Languages: eng Pagination: 46-9 Citation Subset: IM |
Affiliation:
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Second Department of Internal Medicine, Yokohama City University School of Medicine, Yokohama, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Cardiac Pacing, Artificial / methods*, standards Echocardiography, Doppler Electrophysiologic Techniques, Cardiac / instrumentation, methods Heart Failure / therapy* Humans Male Mitral Valve Insufficiency / prevention & control Models, Biological Pacemaker, Artificial / adverse effects, standards |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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