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Diabetic control and coronary artery bypass: effect on short-term outcomes

Stephen Strahan1, Ryan M Harvey, Andrew Campbell-Lloyd

  • 1Department of Cardiac Surgery, Princesses Alexandria Hospital, Brisbane, Queensland, Australia.

Asian Cardiovascular & Thoracic Annals
|February 27, 2014
PubMed

Insights

Preoperative glycemic control and treatment type did not impact short-term outcomes for diabetic patients undergoing coronary artery bypass grafting. Strict perioperative glucose management may explain these findings.

Area of Science:

  • Cardiology
  • Diabetology
  • Surgical Outcomes

Background:

  • Diabetic patients represent a significant portion of individuals undergoing coronary artery bypass grafting (CABG).
  • Preoperative glycemic control is a critical factor influencing surgical outcomes in diabetic patients.
  • Understanding the impact of glycemic control on morbidity and mortality in CABG is essential for optimizing patient care.

Purpose of the Study:

  • To investigate the association between preoperative glycemic control and hospital morbidity and mortality.
  • To evaluate the effect of different diabetic treatment modalities on outcomes in patients undergoing primary CABG.
  • To compare outcomes between diabetic patients and a non-diabetic control group.

Main Methods:

  • A retrospective analysis of prospectively collected data from 3857 patients undergoing primary CABG.
  • Categorization of 1109 diabetic patients based on treatment (diet, oral hypoglycemic agents, insulin) and glycemic control (hemoglobin A1c <7% vs. ≥7%).
  • Comparison of complication rates between diabetic subgroups and 2748 non-diabetic controls.

Main Results:

  • Diabetic patients exhibited higher prevalence of preoperative risk factors like hypertension, hyperlipidemia, renal failure, peripheral vascular disease, and COPD.
  • No significant difference in major complications between diabetic and control groups (p=0.33).
  • Minor complications were less frequent in diabetic patients (p=0.03), with no significant differences among treatment or glycemic control subgroups.

Conclusions:

  • Preoperative glycemic control and treatment type did not significantly affect short-term morbidity or mortality in diabetic patients undergoing primary CABG.
  • Strict protocol-driven glycemic control during the perioperative period may mitigate the impact of preoperative glycemic status.
  • These findings suggest that standardized perioperative glucose management is crucial for diabetic patients undergoing cardiac surgery.
Abstract

Keywords:
Blood glucosecoronary artery bypassdiabetes mellituspostoperative complicationstreatment outcome

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