| Intraoperative evaluation of coronary anastomosis by transit-time ultrasonic flow measurement. | |
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MedLine Citation:
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PMID: 12022531 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Intraoperative assessment of the anastomosis is important during coronary bypass on a beating heart. The purpose of this study is to predict the quality of anastomosis using transit-time flow measurement and to find out the most accurate indicator. METHODS: Eight swine underwent internal thoracic-anterior descending coronary artery bypass grafting on a beating heart. Flow measurement and angiography were performed at various degrees of stenosis created on the graft. As flow parameters, total flow, systolic flow, diastolic flow, diastolic/total flow ratio, systolic peak flow, diastolic peak flow, systolic/diastolic peak flow index, and pulsatility index were used. Mixed procedure and probability test (negative means successful anastomosis) were used to analyze the diagnostic ability. RESULTS: Diastolic flow, diastolic/total flow ratio, diastolic peak flow, systolic/diastolic peak flow index, and pulsatility index showed significant variance with increased stenosis. Among these measures, diastolic/total flow ratio showed the highest value of area under the curve (0.91) and the highest specificity (82%) at 90% sensitivity with actual value of 42%. CONCLUSIONS: Diastolic/total flow ratio was the most reliable indicator to predict critical stenosis in coronary artery bypass grafting. |
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Authors:
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Tetsuro Morota; Francis G Duhaylongsod; William R Burfeind; Ching-Tsorng Huang |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Annals of thoracic surgery Volume: 73 ISSN: 0003-4975 ISO Abbreviation: Ann. Thorac. Surg. Publication Date: 2002 May |
Date Detail:
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Created Date: 2002-05-22 Completed Date: 2002-06-10 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 15030100R Medline TA: Ann Thorac Surg Country: United States |
Other Details:
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Languages: eng Pagination: 1446-50 Citation Subset: AIM; IM |
Affiliation:
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Department of Surgery, Duke University Medical Center, Durham, North Carolina, USA. morotat-sur@h.u-tokyo.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anastomosis, Surgical
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methods* Animals Blood Flow Velocity / physiology* Coronary Artery Bypass / methods* Coronary Circulation / physiology* Diastole / physiology Echocardiography, Doppler Male Pulsatile Flow / physiology Surgical Procedures, Minimally Invasive* Swine Systole / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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