Dr. Wu Jinjin, M.D., Ph.D., Associate Chief Physician, Department of Cardiology, Shanghai Children's Medical Center. Specializing in clinical and basic research on pediatric arrhythmias. Performs approximately 200 pediatric arrhythmia radiofrequency ablation procedures annually, including radiofrequency ablation for various types of tachycardia associated with congenital heart disease, complex atrial tachycardia, and malignant ventricular tachycardia. Currently serves as a Youth Committee Member of the Chinese Society of Pacing and Electrophysiology (CSPE), a Youth Committee Member of the Chinese Medical Doctor Association Committee of Cardiac Arrhythmia, a Youth Committee Member of the Pediatric Cardiovascular Group of the Chinese Pediatric Society, Secretary of the Pediatric Heart Rhythm Working Committee of the Chinese Society of Pacing and Electrophysiology, a Committee Member of the Heart Rhythm Professional Committee of the Shanghai Society of Biomedical Engineering, Standing Committee Member of the Youth Group, Committee Member of the Electrocardiology Group, and Committee Member of the Female Electrophysiologists Group. Overseas training: Completed advanced training in cardiac electrophysiology diagnostic and therapeutic techniques at the German Heart Center Munich, and conducted research on arrhythmias related to postoperative congenital heart disease. Main research directions: Mechanisms of arrhythmia development and progression after complex congenital heart disease surgery, and mechanisms of cardiac remodeling associated with arrhythmias.