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The Impact of Diabetes on Early and Midterm Outcome of Patients Undergoing Coronary Artery Bypass Grafting Surgery

AUTHORS

B Sohrabi 1 , AR Yaghoubi 1 , Samad Ghaffari 1 , *

1 Cardiovascular Research Department, Tabriz University of Medical Sciences, Tabriz, Iran

How to Cite: Sohrabi B , Yaghoubi A , Ghaffari S. The Impact of Diabetes on Early and Midterm Outcome of Patients Undergoing Coronary Artery Bypass Grafting Surgery, Int Cardio Res J. 2010 ; 4(2):e65012.

ARTICLE INFORMATION

International Cardiovascular Research Journal: 4 (2); e65012
Published Online: June 30, 2010
Article Type: Research Article
Received: December 17, 2017
Accepted: June 30, 2010

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Abstract

Background: Diabetic patients constitute about 25% of patients undergoing coronary artery bypass graft surgery
(CABG). The impact of diabetes on the results of this operation, especially in Asian patients is not well
understood. The present study aims to evaluate the effect of this important risk factor on the early and midterm
outcome following CABG.
Methods: This study was performed in Shahid Madani Heart Hospital, Tabriz, Iran from April 1998 to April
2003. Considering our inclusion and exclusion criteria, 1269 patients available for follow up were enrolled and
evaluated for their early (30 days) and midterm mortality.
Results: Diabetic patients constituted 332 (26.2%) of our patients. Female gender, hypertension, hyperlipidemia
and peripheral arterial disease (PAD) were more prevalent in diabetics. Early mortality was not significantly
different between two groups (6.6% in diabetics vs. 5% in non-diabetics, P=0.300) and this was true
for early cardiac death (6.3% in diabetics vs. 4.7% in nondiabetics, P=0.200). However, in midterm follow up
of 4.1 ± 1.6 years, diabetic patients had significantly higher mortality (18.7% in diabetics vs. 11.2% in nondiabetics,
P<0.001). Also total mortality was significantly higher in diabetics (25.3% in diabetics vs. 16.2% in
non-diabetics, P<0.001). In univariate regression analyses diabetes was an independent risk factor for midterm
mortality.
Conclusion: Diabetes may not be an independent risk factor for early death following CABG. However, it is
an important predictor of midterm mortality.

Keywords

Coronary Artery Bypass Diabetes Mellitus Outcome

© 0, Shiraz University of Medical Sciences.

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