ABSTRACT
Background: There is a substantial increase in the coincidence of diabetes mellitus and cardiomyopathy. The cardiomyopathy may occur in patients who have no evidence of large vessel disease or abnormalities. The early and commonest hemodynamic derangement of diabetic cardiomyopathy is left ventricular diastolic dysfunction. So, the present study was undertaken to assess the prevalence of diastolic dysfunction in patients with type 2 diabetes and to assess the correlation of diastolic dysfunction and HbA1c% levels. Materials and methods: A total of 100 diabetic patients with minimum 5 years duration of diabetes were selected from Malla Reddy Hospital, Suraram from August 2020 to June 2022. Patients with minimum history of 5 years of type 2 diabetes were scrutinized for Doppler echo cardiography and HbA1c levels. Results: Diastolic dysfunction of left ventricle was observed in 58 patients out of 100, of which 54 (93.1%) patients had HbA1c% of > 6.4. 2 (3.4%) patients belong to HbA1c% group of 5.7-6.4. and 2(3.4%) patients belong to HbA1c% of < 5. Conclusion: Our findings indicate that myocardial damage in patients with diabetes affects diastolic function before systolic function. Diabetic cardiomyopathy is characterized by an early diastolic dysfunction and a later systolic dysfunction. Impaired diastolic function was not affected by sex or type of diabetes. Even young patients with diabetics with normal systolic ventricular function have diastolic dysfunction, which serves as a marker of a diabetic cardiomyopathy. Diastolic seems not to correlate with disease duration. HbA1c% can be a very good indicator of long term prognosis. Strong corelation exists between diastolic dysfunction and HbA1c.