OBJECTIVES: Diabetes mellitus is associated with the risk of restenosis and mortality after coronary stenting, but the relation between glycosylated hemoglobin (hemoglobin A1c) and prognosis has not yet been fully elucidated in patients with diabetes mellitus. The purpose of this study was to evaluate whether hemoglobin A1c is associated with a risk of major adverse cardiac events (MACE) after successful drug-eluting stent (DES) implantation in patients with diabetes mellitus. METHODS: In a retrospective study with a prospective follow-up, 206 patients with diabetes mellitus undergoing successful DES implantation were enrolled in this study. Hemoglobin A1c levels were measured within 1 month before coronary stenting. RESULTS: During a period of 4,811 person-months, we confirmed 40 cases of MACE. Higher hemoglobin A1c levels increased the incidence of MACE. Based on multivariate analysis, hemoglobin A1c was a significant predictor of MACE. The multiple-adjusted hazard ratio for a 1% increase in hemoglobin A1c levels was 1.40 (95% CI: 1.13-1.74, p = 0.002) for MACE after adjustment for age, gender, ejection fraction, chronic renal failure on hemodialysis, and statins. CONCLUSIONS: Hemoglobin A1c is associated with an increased risk of MACE after successful DES implantation in patients with diabetes mellitus. Copyright (c) 2010 S. Karger AG, Basel.
OBJECTIVES:Diabetes mellitus is associated with the risk of restenosis and mortality after coronary stenting, but the relation between glycosylated hemoglobin (hemoglobin A1c) and prognosis has not yet been fully elucidated in patients with diabetes mellitus. The purpose of this study was to evaluate whether hemoglobin A1c is associated with a risk of major adverse cardiac events (MACE) after successful drug-eluting stent (DES) implantation in patients with diabetes mellitus. METHODS: In a retrospective study with a prospective follow-up, 206 patients with diabetes mellitus undergoing successful DES implantation were enrolled in this study. Hemoglobin A1c levels were measured within 1 month before coronary stenting. RESULTS: During a period of 4,811 person-months, we confirmed 40 cases of MACE. Higher hemoglobin A1c levels increased the incidence of MACE. Based on multivariate analysis, hemoglobin A1c was a significant predictor of MACE. The multiple-adjusted hazard ratio for a 1% increase in hemoglobin A1c levels was 1.40 (95% CI: 1.13-1.74, p = 0.002) for MACE after adjustment for age, gender, ejection fraction, chronic renal failure on hemodialysis, and statins. CONCLUSIONS: Hemoglobin A1c is associated with an increased risk of MACE after successful DES implantation in patients with diabetes mellitus. Copyright (c) 2010 S. Karger AG, Basel.
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