Prevalence and Prognostic Significance of Dysglicemia in Patients With Type 2 Diabetes Mellitus at the Stage of Decompensation of Chronic Cardiac Failure

The aim was to study the prevalence of dysglycemia and glycemic variability (GV) during hospitalization for chronic heart failure (CHF) decompensation and their effect on four-years survival. Methods: A retrospective analysis of the hospital records of 279 patients with type 2 diabetes mellitus (DM), hospitalized with CHF decompensation to the First City Clinical Hospital in Arkhangelsk was performed. Mann - Whitney tests were used for numeric variables. Simple and multiple logistic regression analyses were used to determine the effect of glycemia at admission, GV indicators on the early and long-term prognosis. Results: Median blood glucose at hospitalization was 8.80 (6.74; 11.04) mmol/l. Off-target glycemia was observed in 245 (87.8 %) patients. More than half of the measured tests during hospitalization had glycemic values beyond the recommended levels for the hospitalization period (82.6 %). In patients who died in the long-term period (n = 64, 28.1 %), hyperglycemia of more than 10.0 mmol/l was observed in 43.8 % of the measured tests during hospitalization, in 18.3 % - hyperglycemia from 7.8 to 10.0 mmol/l. Patients who died in the long-term period had higher indices of GV in comparison with the survivors (p = 0.004 for glycemic level variation, p = 0.008 for standard deviation and p = 0.001 for variation coefficient). High GV was associated (OR: 1.943; CI 1.013-3.725, p = 0.046) with the outcome, regardless of gender, manifestations of heart failure and renal function. Conclusions. Altogether, 87.8 % of patients had dysglycemia during the period of hospitalization. High GV during hospitalization was observed in 50.2 % of patients. High GV during hospitalization is an independent risk factor for for-years mortality

Cardiac decompensation · Cardiology · Decompensation · Diabetes mellitus · Glycemic · Heart failure · Insulin · Logistic regression · Cardiovascular Function and Risk Factors · Diabetes Treatment and Management · Hyperglycemia and glycemic control in critically ill and hospitalized patients · Medicine · Endocrinology · Internal Medicine