Arun Gopalakrishnan1, Kavassery Mahadevan Krishnamoorthy2, Ajitkumar Valaparambil2. 1. Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, 695011, India. arungopalakrishnan99@gmail.com. 2. Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, 695011, India.