A Comparison Between Culprit Versus Complete Revascularization in Diabetic Patients With Acute Myocardial Infarction
Naser Aslanabadi1, Sina Mashayekhi1, Maziar Rezvani1
1Department of Cardiology, Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Insights
Complete revascularization in diabetic patients with myocardial infarction significantly lowers cardiac death rates. Staged complete repair of all significant coronary lesions improves outcomes compared to treating only the culprit lesion.
Area of Science:
- Cardiology
- Interventional Cardiology
- Diabetic Complications
Background:
- The optimal management strategy for acute myocardial infarction (AMI) in diabetic patients remains a critical clinical question.
- Complete revascularization benefits in this high-risk population are not fully established.
- This study investigates the efficacy of complete versus culprit-lesion-only revascularization in diabetic AMI patients.
Purpose of the Study:
- To determine the optimal revascularization strategy for diabetic patients experiencing acute myocardial infarction.
- To compare outcomes between staged complete revascularization and culprit-lesion-only percutaneous coronary intervention (PCI) in this cohort.
Main Methods:
- A cohort study was conducted at Madani Hospital, Tabriz, Iran, analyzing diabetic patients with AMI undergoing PCI.
- Patients were divided into two groups: staged complete revascularization of nonculprit lesions versus no further revascularization.
- Functionally significant nonculprit lesions were identified via angiography. Primary outcomes included 1-year readmission, cardiac death, nonfatal myocardial re-infarction, and overall mortality.
Main Results:
- Out of 393 diabetic AMI patients, 271 (68.9%) had culprit-lesion-only PCI (Group 1) and 122 (31.1%) underwent staged complete revascularization (Group 2).
- Group 2 showed significantly lower cardiac death rates (6.5% vs. 17.7%, p ≤ 0.05) compared to Group 1.
- While Group 2 had slightly higher readmission rates (79.5% vs. 75.3%), it demonstrated a trend towards better overall outcomes.
Conclusions:
- Staged complete revascularization in diabetic patients with AMI is associated with a lower incidence of cardiac death.
- This strategy appears superior to culprit-lesion-only revascularization in reducing adverse cardiovascular events.
- Complete revascularization should be considered for diabetic patients with AMI to improve long-term prognosis.
Introduction:
The benefit of complete revascularization in diabetic patients with myocardial infarction remains unclear. this study aims to find the optimal strategy of total vascular repair for diabetic patients with acute myocardial infarction.
Methods:
In an analysis of a cohort, we assigned diabetic patients with myocardial infarction who were undergoing percutaneous coronary intervention (PCI) of the culprit lesion to receive either staged complete revascularization of nonculprit lesions or to receive no further revascularization in Madani Hospital (Tabriz, Iran). Functionally significant nonculprit lesions were identified either by angiography. The primary outcome was rates of readmission, cardiac deaths, nonfatal myocardial re-infarction, and overall mortality at 1 year.
Results:
In our center, a total of 1186 patients underwent primary-PCI treatment, among which 521 were diagnosed with diabetes. Ultimately, 393 patients were selected for inclusion in the study. Within this cohort, 271 individuals (68.9%) underwent repair of only the culprit vessels (group 1), while 122 individuals (31.1%) received a comprehensive staged restoration of the vessels (group 2). During this time, group 1 in comparison with group 2 experienced 204 (75.3%) versus 97 (79.5%) cases of readmission, 48 (17.7%) versus 8 (6.5%) instances of cardiac death, 22 (8.1%) versus 18 (14.7%) occurrences of nonfatal myocardial re-infarction. Notably, the incidence of cardiac death in group 2 were significantly lower than that in group 1 (p ≤ 0.05).
Conclusions:
For individuals diagnosed with diabetes, staged complete revascularization demonstrated a lower frequency of readmission, cardiac deaths, nonfatal myocardial reinfarction, and overall mortality, in contrast to revascularization that targeted only the culprit lesion.
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