Introduction: The Heart – Our Lifeline, Our Focus Different Types of Cardiac Devices and Their Purpose: A Comprehensive Guide in 2025 by Dr. Kuntal Bhattacharya, Sr. Consultant Interventional Cardiologist, Kolkata Hello, I am Dr. Kuntal Bhattacharya, Sr. Consultant Interventional Cardiologist  at NH Rabindranath Tagore International Institute of Cardiac Sciences, Kolkata. [...]