Longevity and Innovation: Cardiac Resynchronization Therapy in a 100-Year-Old Patient With Severe Heart Failure-A 4-Year Follow-Up.

Cardiac resynchronization therapy (CRT) has been shown to improve outcomes in patients with severe left ventricular systolic dysfunction (LVSD) and electrical dyssynchrony. This case report presents a 100-year-old male with a history of atrial fibrillation (AF), left bundle branch block (LBBB), and ischemic heart disease, who was admitted with chest pain and episodes of bradycardia. After careful consideration, CRT-P was successfully implanted. The patient's condition was closely monitored postimplantation, and a 4-year follow-up revealed significant symptomatic improvement and functional independence. This report highlights the importance of CRT-P in improving quality of life and managing heart failure in very elderly patients.