Electrocardiographic Changes In Primary Hypothyroid Patients

Abstract

Background: Slight change in level of thyroid hormones can lead to vast effects on very sensitive cardiovascular system. This study was done to assess the changes in electrocardiographic parameters in newly diagnosed primary hypothyroid patients. Materials & Methods: The present study included 50 patients and 50 controls , and it was conducted at B.J. Medical college, Ahmedabad. Patients under the study were investigated for Thyroid function tests, Lipid profile and Electrocardiogram. A 12 lead resting ECG was recorded via the ECG machine (Allengers Pisces A-103i) of all patients and control group. Hypothyroid patients with major ECG changes who were symptomatic for any Cardiovascular diseases were subjected for further investigations. Results: In hypothyroid patients, ECG changes observed were Sinus bradycardia in 40%, Low voltage complexes in 18%, T Wave inversion in 12%, RBBB in 6%, ST depression in 4% , PR interval prolongation in 8% and QTc prolongation in 18% cases. Conclusion: ECG during routine investigations of hypothyroid patients is very much important for early detection of cardiovascular complications, so further measures can be taken to reduce it. [Amin R Natl J Integr Res Med, 2020; 11(2):80-82]