Lecture on Congenital Heart Defects: Dextrocardia, Tetralogy of Fallot & PDA | MBBS | TSMC

In this session, we explore the embryological basis for positional anomalies, septal defects, and combined syndromes. Master the critical concepts required for your anatomy and embryology exams, including the unique "Four Components" of Fallot's Tetralogy and the clinical signs of central vs. peripheral cyanosis. In this video, you will learn: Dextrocardia & Situs Inversus: Understanding the "Mirror Image" heart and its relation to the leftward bending of the heart tube [00:11]. Ectopia Cordis: Analyzing how the failure of lateral folding during weeks 4-6 leaves the heart exposed outside the thorax [03:21]. Spiral Septum Defects: A review of Patent Truncus Arteriosis and the common vessel origin of the aorta and pulmonary trunk [07:00]. Atrial Septal Defects (ASD): Differentiating between Septum Primum, Septum Secundum, and Patent Foramen Ovale malformations [10:56]. Tetralogy of Fallot (ToF): The most common cyanotic heart disease, including overriding aorta, pulmonary stenosis, VSD, and right ventricular hypertrophy [13:58]. Patent Ductus Arteriosus (PDA): Comparing functional vs. anatomical closure and the consequences of shunting blood back into pulmonary circulation [16:40]. Clinical Correlations: Recognizing Cyanosis and breathlessness as key symptoms of mixed oxygenated and deoxygenated blood [12:06]. Key Embryology Concepts Covered: Cranio-caudal vs. Lateral folding of the embryo. Parts of the Heart Tube: Sinus venosus, Primitive atrium, Ventricle, and Bulbus cordis. The role of the Truncus Arteriosis in aorta and pulmonary trunk formation. Subscribe to Tripura Santiniketan Medical College for more in-depth MBBS lectures and clinical anatomy insights! TRIPURA SANTINIKETAN MEDICAL COLLEGE & HOSPITAL Real time Classroom Demonstration/ ANATOMY LECTURE ON- CONGENITAL ANOMALIES OF HEART , BY- DR. POOJA M (MBBS Batch: 2025-26) Conducted on: 28-02-26 #mbbsclass #medical #class #education #mbbs #tsmc #students #everyoneシ゚viralシviralシfypシ゚viralシalシ #flowers #tripurasantiniketanmedicalcollege