The predictive value of admission hyperglycemia in hospital and long-term mortality of diabetics versus non-diabetics with acute coronary syndrome / 中华内科杂志

ABSTRACT

Objective To evaluate whether the predictive value of admission hyperglycemia for mortality differs between diabetics and non-diabetics with acute coronary syndrome (ACS).Methods A total of 1534 consecutive patients admitted with ACS to Central Control Unit of Beijing Friendship Hospital were analyzed.Among these patients,1332 patients who had a venous plasma glucose record at admission were retrospectively enrolled and were stratified according to admission glucose levels with or without diabetes.The primary end point was in-hospital and 2-year all-cause mortality.Results In patients without a history of diabetes,649 patients had glucose level ≤7.8 mmol/L(group A),204 patients with 7.8-11.0 mmol/L (group B) and 142 patients ＞ 11.0 mmol/L (group C).Of those with diabetes,124 patients were in group A,142 in group B and 126 in group C.By Cox regression analysis,admission hyperglycemia (group B,HR 1.48,P =0.05 ; group C,HR 2.78,P ＜ 0.001) was an independent predictor of long-term all-cause mortality in patients without diabetes.In patients with diabetes,blood glucose ＞ 11.0 mmol/L (group C,HR 2.68,P ＜ 0.001) also independently predicted long-term all-cause mortality.Conclusions Compared with the diabetic patients,elevation of blood glucose at admission is common in ACS patients without definite history of diabetes.Admission hyperglycemia should be considered as a risk factor strongly correlated with in-hospital and 2-year all-cause mortality in patients with ACS.