Background: Although the introduction of primary percutaneous coronary interventions (PCI) improved the outcome of patients with acute myocardial infarction (MI), diabetes remains a significant factor which worsens prognosis.
Aim: To compare the immediate and in-hospital results of PCI in patients with acute MI with or without diabetes.
Methods: The outcome of 139 patients with diabetes and 528 patients without diabetes was compared. Thrombolytic therapy was administered prior to PCI to 43.2% of patients with diabetes and 42.4% of patients without diabetes.
Results: Patients with diabetes were older, more frequently of female gender and had higher incidence of hypertension as well as multi-vessel coronary artery disease. PCI was effective in 85.6% of diabetics and 90.2% of non-diabetic patients (NS). The reocclusion rate was significantly higher in diabetics than in non-diabetics (11.5% vs 5.5%, p=0.012) whereas the incidence of haemorrhagic complications was similar. Mortality rates were comparable in both groups (7.2% in diabetics vs 5.9% in non-diabetics, NS).
Conclusions: 1) Immediate efficacy of primary PCI for acute MI is similar in diabetics and non-diabetics, however, the in-hospital reocclusion rate is higher in the former group of patients. 2) In-hospital mortality is not affected by the presence of diabetes. 3) Thrombolytic and invasive treatment of diabetic patients with acute MI is not associated with an increased risk of bleeding.