Effects of competitive blood flow on arterial graft patency and diameter. Medium-term postoperative follow-up.
J Thorac Cardiovasc Surg
; 111(2): 399-407, 1996 Feb.
Article
em En
| MEDLINE
| ID: mdl-8583813
ABSTRACT
To identify predictors of arterial graft patency, we followed up 30 internal thoracic arterial grafts and 23 right gastroepiploic arterial grafts in situ with patency documented during postoperative angiography. After 24 months of follow-up on average, repeat angiography detected that one internal thoracic artery and two gastroepiploic arteries were anatomically occluded and that the other three gastroepiploic arteries were nonfunctioning. The logistic regression model identified a relationship between graft patency and competitive flow, which was detected as stenosis in the recipient coronary arteries (coefficients, p < 0.05; model, Hosmer-Lemeshow chi2 statistic 3.59, p = 0.89). The linear regression model demonstrated that changes in graft luminal diameter correlated with competitive flow (p < 0.01), smoking history (p < 0.05), and type of arterial grafts (p < 0.001) (R2 = 0.40, adjusted R2 = 0.36). The findings suggest a temporal relationship between competitive flow and prognosis of arterial graft.
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Base de dados:
MEDLINE
Assunto principal:
Artérias
/
Artérias Torácicas
/
Grau de Desobstrução Vascular
/
Ponte de Artéria Coronária
/
Músculos Abdominais
Idioma:
En
Ano de publicação:
1996
Tipo de documento:
Article