In this video, we will learn about Tetralogy of Fallot (TOF) one of the most common congenital heart diseases. You'll understand its four defects, causes, clinical features like cyanosis and "blue baby syndrome," pathophysiology, investigations, and treatment options including surgery. Perfect for medical, nursing, and paramedical students preparing for exams, or anyone curious about congenital heart conditions. Topics Covered: What is Tetralogy of Fallot? The four key defects (VSD, Pulmonary stenosis, Overriding aorta, Right ventricular hypertrophy) Clinical features and "Tet spells" Pathophysiology simplified Diagnosis and treatment options Don't forget to Like, Share & Subscribe for more medical education content!