| Detection of patency of internal mammary artery grafts to the left anterior descending artery by transthoracic Doppler echocardiography. | |
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MedLine Citation:
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PMID: 16999692 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: To determine whether a coronary artery bypass graft (CABG) is patent, we examined the flow of the left internal mammary artery (LIMA) to the left anterior descending artery (LAD) by transthoracic Doppler echocardiography (TTDE). PATIENTS AND METHODS: Eighty-seven patients with CABG (LIMA to distal LAD) were enrolled in the study. The flows from each subject were analyzed by three criteria: mosaic flow at the anastomosis site, distal anterograde flow (ante flow), and proximal retrograde flow (retro flow). RESULTS: On angiography, 79 grafts were patent and eight were not. TTDE study of 79 patent grafts demonstrated mosaic, ante, and retro flow in 63 (79.7%), 74 (93.7%), and 35 grafts (49.4%), respectively. The averaged diastolic peak velocity of ante flow was 26.3 +/- 11.0 cm/sec, significantly higher than that (4.8 +/- 7.1 cm/sec, P < or = 0.0001) in eight patients without patent grafts. These eight patients had no mosaic or retro flow and only three had ante flow. The accuracies to predict patency were 81.6%, 90.8%, and 49.4% for mosaic, ante, and retro flows, respectively. CONCLUSIONS: The existence of mosaic, retro, or sufficient ante flows strongly indicated the patency of LIMA to the LAD. When symptoms are possible to be derived from the occlusion of CABG to LAD, TTDE is a promising method to examine whether a LIMA to LAD bypass is patent. |
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Authors:
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Hiromi Tasaki; Kazuhito Yamashita; Noriko Hirakawa; Hiroshi Suzuka; Tsuyoshi Morishita; Masahiro Okazaki; Yasuhide Nakashima; Ichiro Nagano |
Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Echocardiography (Mount Kisco, N.Y.) Volume: 23 ISSN: 0742-2822 ISO Abbreviation: Echocardiography Publication Date: 2006 Oct |
Date Detail:
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Created Date: 2006-09-26 Completed Date: 2007-05-25 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8511187 Medline TA: Echocardiography Country: United States |
Other Details:
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Languages: eng Pagination: 741-9 Citation Subset: IM |
Affiliation:
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Second Department of Internal Medicine and Division of Cardiovascular Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishku, Kitakyushu 807-8555, Japan. h-tasaki@med.uoeh-u.ac.jp |
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Angina Pectoris / diagnosis, physiopathology, surgery Blood Flow Velocity Confounding Factors (Epidemiology) Coronary Angiography Coronary Circulation Coronary Stenosis / diagnosis, physiopathology, surgery Coronary Vessels / physiopathology*, transplantation, ultrasonography* Echocardiography, Doppler* Female Graft Occlusion, Vascular / diagnosis*, epidemiology, etiology, physiopathology Heart Failure / diagnosis, physiopathology, surgery Humans Image Processing, Computer-Assisted Internal Mammary-Coronary Artery Anastomosis* Male Mammary Arteries* / physiopathology, radiography, transplantation, ultrasonography Middle Aged Myocardial Contraction Risk Factors Sensitivity and Specificity Vascular Patency* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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