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Coronary angiography and coronary artery by-pass grafts in diabetics
1Sydney Adventist Hospital, Australia.
Insights
Diabetics undergoing coronary artery bypass graft surgery experience more severe atherosclerosis, complicating vessel grafting. However, their outcomes, including mortality and hospitalization, are comparable to non-diabetic patients.
Area of Science:
- Cardiovascular Surgery
- Diabetology
- Vascular Biology
Background:
- Diabetic patients often present with more advanced cardiovascular disease.
- Coronary artery bypass graft (CABG) surgery is a common intervention for severe coronary artery disease.
Purpose of the Study:
- To compare the severity of atherosclerosis and surgical outcomes in diabetic versus non-diabetic patients undergoing CABG.
- To evaluate the impact of diabetes on the characteristics of epicardial arteries and the success of bypass grafting.
Main Methods:
- Retrospective comparison of angiographic and intraoperative findings.
- 118 diabetic patients were matched with 98 non-diabetic patients based on sex and age.
- Analysis of vessel quality for saphenous vein grafting and internal mammary artery anastomoses.
Main Results:
- Diabetic patients exhibited more severe atherosclerosis in epicardial arteries.
- Diabetic vessels showed increased fragility, irregularity, calcification, thickening, and atherosclerotic plaques, hindering grafting.
- Despite vessel quality differences, post-operative mortality and morbidity were not higher in diabetics.
- Hospitalization duration was comparable between diabetic and non-diabetic groups.
Conclusions:
- While diabetes exacerbates atherosclerosis and complicates CABG vessel preparation, it does not adversely affect short-term surgical outcomes.
- Careful surgical technique is crucial when managing diabetic vessels during CABG.
- Further research into long-term outcomes and specific management strategies for diabetic patients undergoing CABG is warranted.
Abstract:
Angiographic data and findings at operation in 118 diabetics undergoing coronary artery bypass graft have been compared with those from 98 non-diabetic patients matched for sex and age. Atherosclerosis in the epicardial arteries in diabetics is more severe than in the general population. Saphenous vein grafting and internal mammary artery anastomoses are hampered by the fragility, irregularity, calcification and thickening as well as extensive atherosclerotic plaques in diabetic vessels. However, post-operative mortality and morbidity are no higher in diabetics and the length of hospitalisation is comparable with those of non-diabetics undergoing these procedures.