OBJECTIVE: To investigate the association between hyperglycemia and outcome in elderly patients with acute ST segment elevation myocardial infarction (STEMI) underwent primary percutaneous coronary intervention (PCI). METHODS: This retrospective analysis was performed on 284 elderly patients (age > or = 60 years) with acute STEMI underwent primary PCI between January 2000 to April 2004 in our department. Patients were divided into 3 groups according to the level of blood glucose on admission: group A, < 7.8 mmol/L; group B, 7.8 - 10.9 mmol/L; group C, > or = 11.0 mmol/L. RESULTS: (1) The proportion of female in group B and group C was greater than that of group A (33.3% vs. 26.5%, P < 0.01; 40.2% vs. 26.5%, P < 0.01). The hospital stay time of group B and group C was significantly longer than that of group A (16.0 days vs. 13.9 days, P < 0.05; 16.6 days vs. 13.9 days, P < 0.05). There were more patients with history of hypertension in group C than that in group A (72.1% vs. 54.9%, P < 0.01). (2) After PCI, the proportion of patients with TIMI myocardial perfusion grade (TMPG) 0-1 in group B and C was greater than that of group A (22.6% vs. 13.3%, P < 0.05; 34.1% vs. 13.3%, P < 0.05). The proportion of patients with TMPG 3 in group B and C was less than that in group A (74.3% vs. 84.4%, P < 0.05; 57.6% vs. 84.4%, P < 0.05). The complication rate of PCI was significantly higher in group C than in group A (42.5% vs. 20.6%, P < 0.01) and group B (42.5% vs. 26.6%, P < 0.01). IABP use was significantly more in group C than that in group A (19.5% vs. 4.9%, P < 0.01) and group B (19.5% vs. 6.4%, P < 0.01). (3) There were more patients with grade of Killip class > or = 2 in group C than that in group A (44.8% vs. 23.5%, P < 0.01) and group B (44.8% vs. 27.7%, P < 0.01). The in-hospital mortality rate (8.0% vs. 1.1%, P < 0.05) and one-year mortality rate (18.7% vs. 3.4%, P < 0.05) of group C were significantly higher than those in group A. CONCLUSION: Hyperglycemia at admission was associated with poor tissue perfusion, cardiac function and prognosis in elderly patients with acute STEMI underwent primary PCI.
OBJECTIVE: To investigate the association between hyperglycemia and outcome in elderly patients with acute ST segment elevation myocardial infarction (STEMI) underwent primary percutaneous coronary intervention (PCI). METHODS: This retrospective analysis was performed on 284 elderly patients (age > or = 60 years) with acute STEMI underwent primary PCI between January 2000 to April 2004 in our department. Patients were divided into 3 groups according to the level of blood glucose on admission: group A, < 7.8 mmol/L; group B, 7.8 - 10.9 mmol/L; group C, > or = 11.0 mmol/L. RESULTS: (1) The proportion of female in group B and group C was greater than that of group A (33.3% vs. 26.5%, P < 0.01; 40.2% vs. 26.5%, P < 0.01). The hospital stay time of group B and group C was significantly longer than that of group A (16.0 days vs. 13.9 days, P < 0.05; 16.6 days vs. 13.9 days, P < 0.05). There were more patients with history of hypertension in group C than that in group A (72.1% vs. 54.9%, P < 0.01). (2) After PCI, the proportion of patients with TIMI myocardial perfusion grade (TMPG) 0-1 in group B and C was greater than that of group A (22.6% vs. 13.3%, P < 0.05; 34.1% vs. 13.3%, P < 0.05). The proportion of patients with TMPG 3 in group B and C was less than that in group A (74.3% vs. 84.4%, P < 0.05; 57.6% vs. 84.4%, P < 0.05). The complication rate of PCI was significantly higher in group C than in group A (42.5% vs. 20.6%, P < 0.01) and group B (42.5% vs. 26.6%, P < 0.01). IABP use was significantly more in group C than that in group A (19.5% vs. 4.9%, P < 0.01) and group B (19.5% vs. 6.4%, P < 0.01). (3) There were more patients with grade of Killip class > or = 2 in group C than that in group A (44.8% vs. 23.5%, P < 0.01) and group B (44.8% vs. 27.7%, P < 0.01). The in-hospital mortality rate (8.0% vs. 1.1%, P < 0.05) and one-year mortality rate (18.7% vs. 3.4%, P < 0.05) of group C were significantly higher than those in group A. CONCLUSION:Hyperglycemia at admission was associated with poor tissue perfusion, cardiac function and prognosis in elderly patients with acute STEMI underwent primary PCI.