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Effects of glycemia on immediate complications following CABG

Glenn R Cunningham1, Daoud Daoud, Susan Baimbridge

  • 1St. Luke's Episcopal Hospital Baylor College of Medicine.

Endocrine Practice : Official Journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists
|June 29, 2013
PubMed

Insights

High blood sugar after coronary artery bypass grafting (CABG) increased complications in low-risk patients. Postoperative hyperglycemia did not significantly impact mortality in these patients.

Area of Science:

  • Cardiovascular Surgery
  • Metabolic Disorders

Background:

  • Postoperative glucose control is crucial in cardiac surgery.
  • Understanding hyperglycemia's impact on outcomes after coronary artery bypass grafting (CABG) is essential.

Purpose of the Study:

  • To investigate the association between early postoperative glucose levels and immediate outcomes in patients undergoing isolated CABG.
  • To analyze the correlation between glucose levels and complications or mortality based on preoperative mortality risk (MR).

Main Methods:

  • Retrospective analysis of 2,558 patients undergoing isolated CABG.
  • Stratification into three mortality risk groups (low, medium, high) using Society of Thoracic Surgeons' criteria.
  • Analysis of average glucose levels for the first three postoperative days, examining quartiles and their relationship with outcomes.

Main Results:

  • Hyperglycemia on postoperative days 1 and 2 was significantly correlated with total complications in low and medium MR groups.
  • No significant correlation was found between glycemic control and mortality.
  • The strongest correlations between glucose levels and outcomes were observed in the low MR group within the first two days post-surgery.

Conclusions:

  • Early postoperative hyperglycemia adversely affects total complications in patients with low and medium mortality risk after CABG.
  • Hyperglycemia in the initial two days post-CABG did not significantly influence hospital mortality in the studied patient cohorts.
Abstract

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