| Abolition of ischemic response to atrial pacing following aortocoronary bypass surgery. | |
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MedLine Citation:
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PMID: 1084809 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To determine the effect of successful aortocoronary bypass surgery (ACBS) on left ventricular (LV) function, the ischemic response to right atrial pacing (RAP) was studied in 22 angina patients before and 3.8 +/- 1.1 months after surgery. All patients were free of angina after ACBS and had at least one patent graft. Before ACBS, RAP induced angina in 15 patients (Group 1) but not in 7 patients (Group 2). After ACBS, no patient had angina with RAP despite the increased maximum rate of pacing. Post-pacing LV end-diastolic pressure (LVEDP) after ACBS decreased in Group 1 from 25 +/- 6 to 15 +/- 6 mm Hg (P less than 0.01), but not in Group 2. Changes in ejection fraction, cardiac output, resting LVEDP, or LVEDP after LV angiography were not significant in either group and were therefore not useful in evaluating the result of ACBS. However the ischemic response to right atrial pacing was abolished by successful aortocoronary bypass surgery, suggesting improved myocardial perfusion during stress. |
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Authors:
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B I Jugdutt; S J Lee; R F Taylor |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Circulation Volume: 54 ISSN: 0009-7322 ISO Abbreviation: Circulation Publication Date: 1976 Aug |
Date Detail:
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Created Date: 1976-09-25 Completed Date: 1976-09-25 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0147763 Medline TA: Circulation Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 225-9 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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Angina Pectoris
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surgery Blood Pressure Cardiac Output Coronary Artery Bypass* Coronary Circulation Coronary Disease / physiopathology* Electric Stimulation* Electrocardiography Female Heart Atria* Heart Rate Heart Ventricles / physiopathology Humans Male Middle Aged Myocardial Contraction Myocardial Infarction / physiopathology Postoperative Complications / physiopathology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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