Related Experiment Videos
Complications of coronary artery surgery in diabetic patients
R Fietsam1, J Bassett, J L Glover
1Department of Surgery, William Beaumont Hospital, Royal Oak, Michigan.
Insights
Diabetic patients undergoing coronary artery bypass grafting (CABG) had higher complication rates, particularly wound infections and respiratory failure, despite similar mortality to nondiabetic patients. This highlights specific risks for diabetic individuals in cardiac surgery.
Area of Science:
- Cardiology
- Diabetology
- Surgical Outcomes
Background:
- Diabetes mellitus is a significant comorbidity affecting cardiovascular health.
- Coronary artery bypass grafting (CABG) is a common procedure for managing coronary artery disease.
- Understanding the impact of diabetes on CABG outcomes is crucial for patient management.
Purpose of the Study:
- To compare postoperative mortality and morbidity between diabetic and nondiabetic patients undergoing primary CABG.
- To identify specific complications that occur more frequently in diabetic patients post-CABG.
- To analyze the influence of diabetic status on overall surgical outcomes.
Main Methods:
- Retrospective analysis of 711 patients undergoing primary CABG in 1988.
- Comparison of demographic and preoperative clinical characteristics between diabetic (n=146) and nondiabetic (n=565) groups.
- Statistical analysis of postoperative mortality, morbidity, and specific complication rates.
Main Results:
- Diabetic patients had significantly higher overall complication rates (18.5% vs. 8.3%).
- Specific complications like wound infections, postoperative arrhythmias, and respiratory failure were significantly more common in diabetics.
- Mortality rates were similar between groups, but emergent/urgent procedures and female gender were associated with higher mortality, independent of diabetic status.
Conclusions:
- Diabetic patients experience a higher incidence of specific postoperative complications after primary CABG.
- While overall mortality may be similar, increased morbidity necessitates targeted preventive strategies for diabetic patients.
- Further research into optimizing perioperative care for diabetic patients undergoing CABG is warranted.
Abstract:
Postoperative mortality and morbidity of diabetic versus nondiabetic patients undergoing primary coronary artery bypass grafting (CABG) were analyzed. In 1988, 711 patients had CABG procedures, of which 565 were nondiabetic and 146 diabetic. The two groups of patients were statistically similar in regard to age, weight, tobacco and ethanol use, and preoperative levels of cholesterol, triglycerides, blood urea nitrogen (BUN), and creatinine. Preoperative serum glucose levels were significantly elevated in diabetic patients (182 vs. 106, P less than .001). Cardiac output, ejection fraction, and bypass, crossclamp time, and total operating room times were not different for the two groups. Emergent and urgent procedures had a significantly higher mortality rate than elective cases (11.3% and 6.6% vs. 1.7%, respectively; P less than 0.05), but this was independent of the patient's diabetic status. Women had a higher mortality rate than men (6.5% vs. 2.9%; P = 0.05) although within each gender group, there were no differences between diabetics and nondiabetics. There were 27 patients with complications in the diabetic group (18.5%) and 47 in the nondiabetic group (8.3%; P less than .001). The types of complications within the two groups differed in that wound infections (7.5%), postoperative arrhythmias (4.8%), respiratory failure (4.1%), and intra-aortic balloon pump use (4.1%) were significantly greater (P less than .05) in the diabetic patients compared to the nondiabetic (0.9%, 1.8%, 0.4%, and 1.4%, respectively). Occurrences of postoperative pneumothorax, reoperation, myocardial infarction, stroke, urinary tract infection, and pneumonia were similar in both groups.(ABSTRACT TRUNCATED AT 250 WORDS)