| Should use of the internal thoracic artery be avoided under conditions of low free flow? Postoperative hemodynamic assessment using pulsed Doppler echocardiography. | |
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MedLine Citation:
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PMID: 10462020 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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There are cases in which it is thought advisable to avoid the use of the left internal thoracic artery (LITA) in coronary artery bypass grafting (CABG) due to its low free flow (FF). However, even though the LITA flow is very low, anastomosis without any further maneuvers intraluminally is recommended. The present study investigated the clinical results of CABG, using a LITA with low FF. The 60 cases of CABG were divided into 2 groups: (i) Group L (n = 23), in which LITA FF was less than 20 ml/min; and (ii) Group H (n = 37) in which it was more than 20 ml/min. A comparative study on the basis of coronary angiography and pulsed Doppler echocardiography was performed. In both groups, no LITA graft occlusion was identified, and the 'string sign' was also absent. In the LITA blood waveform, all cases exhibited a biphasic pattern with a higher mid-diastolic and a lower end-systolic component. There were no significant differences in the LITA flow diastolic peak velocity, velocity time integrals and the diastolic/systolic peak velocity ratios. These results suggest that the LITA can be used for CABG even when the free flow is less than 20 ml/min. |
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Authors:
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M Hata; M Shiono; Y Orime; H Hata; S Yagi; T Yamamoto; S Tsukamoto; H Okumura; S Kimura; A Sezai; S Kashiwazaki; S Choh; N Negishi; Y Sezai; N Tanigawa; A Shindoh |
Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Japanese circulation journal Volume: 63 ISSN: 0047-1828 ISO Abbreviation: Jpn. Circ. J. Publication Date: 1999 Jul |
Date Detail:
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Created Date: 1999-10-08 Completed Date: 1999-10-08 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: 533-6 Citation Subset: IM |
Affiliation:
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Second Department of Surgery, Nihon University School of Medicine, Tokyo, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Blood Flow Velocity / physiology Coronary Angiography / methods Coronary Artery Bypass / adverse effects Coronary Disease / surgery Echocardiography, Doppler, Pulsed / methods Female Graft Occlusion, Vascular Hemodynamics / physiology Humans Male Middle Aged Postoperative Period Risk Factors Thoracic Arteries / transplantation* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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