A study of electrocardiographic and 2D echocardiographic changes in type 2 diabetes mellitus patients without cardiovascular symptoms

CONTEXT: Cardiovascular diseases in diabetic patients are mostly asymptomatic due to autonomic neuropathy. Many patients with left ventricular dysfunction remain undiagnosed and untreated until advance disease causes disability. This delay could be avoided if screening techniques are used to identify left ventricular dysfunction in its preclinical phase. AIMS: This study was undertaken to find out the incidence of electrocardiographic (ECG) and 2D echocardiographic (2 D Echo) abnormalities in diabetic patients without cardiovascular symptoms. The correlation of control of diabetes with these abnormalities was also studied. SETTINGS AND DESIGN: A hospital-based, cross-sectional observational study. METHODS AND MATERIAL: Type 2 diabetic patients (outpatient and indoor) without cardiovascular symptoms like palpitations, chest pain, syncope, and breathlessness were included in the study. Their ECG and 2D Echo findings were noted and correlated with their blood sugar levels. STATISTICAL ANALYSIS USED: Chi-square test. RESULTS: Type 2 diabetic patients without cardiovascular symptoms had significant abnormal findings on ECG and 2D Echo. Control of postprandial blood sugar level was of primary importance to prevent cardiovascular abnormalities. CONCLUSIONS: Type 2 diabetics without cardiovascular symptoms must be screened for cardiovascular abnormalities so that early interventions can be done to prevent further progression to symptomatic cardiovascular abnormalities. There is a significant number of people having normal ECG but abnormal 2D Echo and vice versa, so not only ECG but also 2D Echo should be done to predict cardiovascular risk in type 2 diabetic patients without cardiovascular symptoms.