The effect of diabetes mellitus on patients undergoing coronary surgery: a risk-adjusted analysis

C Rajakaruna, CA Rogers, C Suranimala, G Angelini, R Ascione

Research output: Contribution to journalArticle (Academic Journal)

64 Citations (Scopus)

Abstract

Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom. BACKGROUND: Surgical case-mix is seriously worsening, and the results of surgical revascularization on high-risk cohorts should be continuously evaluated. This study investigates the influence of diabetes mellitus on the short and midterm outcome in the modern era of coronary surgery. METHODS AND RESULTS: Patients who underwent first-time coronary artery bypass grafting from April 1996 to October 2003 were classified into diabetic and nondiabetic groups. Data were prospectively collected and retrospectively analyzed. A total of 5259 patients were studied, and of these 877 (17%) were diabetic. Patients with diabetes were more likely to be female, have a higher body mass index, be in an advanced New York Heart Association class and Canadian Cardiovascular Society class, have a history of congestive heart failure, have a poor ejection fraction, renal failure, and more extensive coronary artery disease than the nondiabetic group (P <.001 for all). In-hospital mortality was 2.2% and 1% for diabetic and nondiabetic patients, respectively; however, diabetes was not found to be an independent risk factor for in-hospital mortality (odds ratio = 1.63; 95% confidence interval 0.92-2.88; P = .089). Postoperative complications were comparable in the two groups, with only renal, neurologic, and gastrointestinal complications significantly associated with diabetes (all P <or = .05). There was no association between diabetes mellitus and postoperative infective complications. Diabetes remained an independent predictor of 5-year mortality (hazard ratio 1.55; 95% confidence interval 1.22-1.96; P <.001) and of lower 5-year cardiac-related event-free survival. CONCLUSION: Despite a worsening cohort, diabetic patients could be surgically revascularized with low morbidity and mortality, comparable with control patients. The negative effect of diabetes mellitus on the longer-term mortality and morbidity remains a problem. PMID: 17000291 [PubMed - indexed for MEDLINE]
Translated title of the contributionThe effect of diabetes mellitus on patients undergoing coronary surgery: a risk-adjusted analysis
Original languageEnglish
Pages (from-to)802 - 810
Number of pages9
JournalJournal of Thoracic and Cardiovascular Surgery
Volume132(4)
Publication statusPublished - Oct 2006

Structured keywords

  • BTC (Bristol Trials Centre)

Fingerprint Dive into the research topics of 'The effect of diabetes mellitus on patients undergoing coronary surgery: a risk-adjusted analysis'. Together they form a unique fingerprint.

  • Cite this