Association of QT interval indices with cardiac autonomic neuropathy in diabetic patients

Background. Cardiovascular autonomic neuropathy (CAN) is a severely debilitating yet underdiagnosed condition in patients with diabetes mellitus. The prevalence can range from 2.5% (based on the primary prevention cohort Diabetes Control and Complications Trial) to as high 90% of diabetic patients. Clinical manifestations orthostasis myocardial infarction. diagnosis made using multiple function tests assess both sympathetic parasympathetic function. This study was conducted relationship between Cardiac QT interval. Material methods. cross-sectional 100 attending tertiary care hospital India. Deep breathing test, Valsalva ratio, immediate heart rate response standing 30 : 15, BP rise sustained hand grip postural hypotension were evaluated. Scoring done for cardiac neuropathy. interval QTc determined association CAN obtained. Results. Out type 2 patients, 60% males 40% females. 25 having no had prolonged While, 75 associated early severe significantly when compared without controls (P < 0.0001). grading score CAD showed that 75% cases > 25% 2. 44 2–4 31 above 4. A significant Diabetic observed non controls. Conclusions. increase prolongation intervals. Hence, there need regular checkup nervous system patient prevent further complications.