Medico-Legal Traps in Congenital & Valvular Heart Disease is a forensic cardiology risk manual for cardiologists, pediatric cardiologists, electrophysiologists, cardiac surgeons, hospital quality leaders, medico-legal consultants, postgraduate trainees, and institutional libraries working in environments where diagnostic uncertainty, lifelong follow-up obligations, complex interventions, and fragmented documentation can rapidly transform appropriate care into indefensible practice; spanning high-risk conditions from aortic coarctation, Tetralogy of Fallot, Ebstein anomaly, Eisenmenger syndrome, CCTGA, and Wolff–Parkinson–White syndrome to prosthetic valve dysfunction, mitral and aortic valve disease, infective and Libman-Sacks endocarditis, pulmonary hypertension, and post-repair complications, this volume dissects how delayed diagnosis, inadequate referral, poor transition from pediatric to adult care, weak consent processes, missed surveillance, and incomplete records repeatedly surface in audits, courts, and mortality reviews; each chapter integrates guideline-aligned diagnostics and management strategies with real medico-legal case analyses, identifies failure points in imaging, escalation, communication, and follow-up, exposes documentation gaps that undermine otherwise sound decisions, and concludes with a clear thumb rule commandment that converts complex cardiac care into defensible, audit-ready clinical action; designed for international regulatory and insurance environments and aligned with ESC and AHA/ACC standards, the book strengthens institutional governance, sharpens clinical judgment under pressure, reinforces longitudinal accountability, and prepares clinicians to withstand litigation, regulatory inquiry, and peer review, affirming a central truth of congenital and valvular cardiology: long-term survival depends on timely intervention, but professional protection depends on traceable reasoning, transparent records, and sustained, provable responsibility.