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Eur J Cardiothorac Surg. 2010 May;37(5):1068-74. doi: 10.1016/j.ejcts.2009.11.042. Epub 2009 Dec 24.

Diabetes and survival after coronary artery bypass grafting: comparison with an age- and sex-matched population.

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  • 1Department of Cardio-Thoracic Surgery, Catharina Hospital, Eindhoven, The Netherlands.

Abstract

OBJECTIVE:

Long-term outcome after coronary artery bypass grafting is worse in diabetic than in non-diabetic patients. No data are currently available regarding survival rates of diabetic and non-diabetic patients after coronary revascularisation compared with cohorts from the general population in the Netherlands, which were matched for age and sex (normal Dutch survival).

METHODS:

We retrospectively analysed the data from 10626 patients who underwent coronary artery bypass grafting between January 1998 and December 2007. Of these, 8287 patients were non-diabetic, 1587 were non-insulin-dependent and 630 were insulin-dependent diabetic patients (122 patients were lost to follow-up). Survival of these patient groups was compared with the normal Dutch survival.

RESULTS:

Multivariate analyses revealed non-insulin-dependent diabetes to be a risk factor for early mortality and both insulin-dependent and non-insulin-dependent diabetes as risk factors for late mortality. The 1-, 5- and 10-year survival rates for non-diabetic patients were 94.1%+/-0.3%, 86.8%+/-0.4% and 75.1%+/-1.7%, respectively, which was better than the normal Dutch survival. For insulin-dependent diabetic patients, 1-, 5- and 10-year survival rates were 90.3%+/-1.2%, 78.0%+/-2.0% and 60.5%+/-4.6%, respectively, and for non-insulin-dependent diabetic patients 91.4%+/-0.7%, 79.0%+/-1.3% and 58.9%+/-3.4%, respectively, which was worse than the normal Dutch survival.

CONCLUSIONS:

Non-insulin-dependent diabetes was a risk factor for early mortality and both types of diabetes were risk factors for late mortality after revascularisation. Compared with age- and sex-matched cohorts from the general Dutch population, the 10-year survival of non-diabetic patients was better; whereas the survival of both types of diabetic patients was worse.

Copyright 2009 European Association for Cardio-Thoracic Surgery. Published by Elsevier B.V. All rights reserved.

PMID:
20036136
[PubMed - indexed for MEDLINE]
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