Document Detail


Non-invasive Doppler technique for detection of flow velocity in left internal mammary artery grafts.
MedLine Citation:
PMID:  8049947     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The capability of Doppler to detect patency of left internal mammary artery grafts through the supraclavicular approach was evaluated. A total of 37 patients with a left internal mammary artery graft to the left anterior descending artery were divided into three groups, according to postoperative coronary angiographic studies. Group 1 comprised 20 patients with no significant stenosis of the left internal mammary artery and subtotal or total obstruction in the left anterior descending coronary artery proximal to the anastomotic site. There were ten patients with no significant stenosis of the left internal mammary artery and 75% stenosis of the left anterior descending coronary artery in group 2. Seven patients with significant stenosis of the left internal mammary artery formed group 3. Analysis of the flow velocity pattern in the left internal mammary artery graft included: (1) systolic peak velocity (SPV), (2) diastolic peak velocity (DPV), (3) systolic time velocity integral (SI), (4) diastolic time velocity integral (DI), (5) diastolic peak velocity/systolic peak velocity and (6) diastolic time velocity integral/diastolic time velocity integral+systolic time velocity integral. There were no significant differences in systolic peak velocity and systolic time velocity integral between the three groups. The diastolic peak velocity and diastolic time velocity integral were greater in group 1 than in groups 2 (P < 0.05, P < 0.01) and 3 (P < 0.05). The diastolic peak velocity/systolic peak velocity and diastolic time velocity integral/diastolic time velocity integral+systolic time velocity integral ratios in group 3 were significantly smaller than in groups 1 and 2 (P < 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
M Nasu; T Takagi; T Akasaka; M Shinkai; H Fujiwara; J Sono; Y Okada; S Miyamoto; S Nishiuchi; T Shomura
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cardiovascular surgery (London, England)     Volume:  2     ISSN:  0967-2109     ISO Abbreviation:  Cardiovasc Surg     Publication Date:  1994 Apr 
Date Detail:
Created Date:  1994-09-08     Completed Date:  1994-09-08     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9308765     Medline TA:  Cardiovasc Surg     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  207-11     Citation Subset:  IM    
Affiliation:
Department of Thoracic and Cardiovascular Surgery, Kobe City General Hospital, Japan.
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MeSH Terms
Descriptor/Qualifier:
Blood Flow Velocity / physiology
Constriction, Pathologic / physiopathology,  ultrasonography
Coronary Circulation / physiology
Coronary Vessels / physiopathology,  ultrasonography
Diastole
Echocardiography, Doppler*
Humans
Internal Mammary-Coronary Artery Anastomosis*
Mammary Arteries / ultrasonography*
Regional Blood Flow / physiology
Sensitivity and Specificity
Systole
Vascular Patency / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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