AIMS: Cross sectional observational study in a tertiary care hospital on prevalence of ECG changes among patients of hypothyroidism.

MATERIAL AND METHODS: 30 subjects (8 male and 22 female) were selected for the study and evaluated with ECG.

RESULTS: Result shows that 80% of patients had abnormal ECG while 20% had normal ECG. There was ST–T wave changes, like flattening, depression with/without low voltage and T–Wave changes, like flattening, inverted, low amplitude was found among 70% patients. Low voltage complexes with ST–T changes was found among 50%.

CONCLUSION: ST flattening was the commonest abnormality in ECG seen in hypothyroidism, ECG abnormality was more common in patients with more than than 40plU/ml of TSH.