IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-7-35889 Original Research Paper Study of Speckle Tracking Echocardiography in Ischemic and Non Ischemic Left Bundle Branch Block Kota Sabari Girish Dr. Dr. Vinodh Kumar Paulpandi Dr. Balasubramaniam Ramakrishnan Dr. July 2021 10 7 01 02