Prevalence and Etiology Anatomy Pathophysiology Presentation and Symptomatology Clinical Findings Investigations Natural History Treatment Annotated References References 32 Ventricular Septal Defect Abstract Introduction Prevalence Morphology and Morphogenesis Features Requiring Description Morphogenesis Pathophysiology Clinical Features Investigations Diagnosis Course and Prognosis Management Annotated References References 33 Diseases of the Tricuspid Valve Abstract Introduction Ebstein Malformation Pathophysiology and Clinical Aspects of Ebstein Malformation Other Tricuspid Valvar Abnormalities Acknowledgments Annotated References References 34 Diseases of the Mitral Valve Abstract Morphogenesis of the Mitral Valve Morphology Incidence and Etiology Pathophysiology Clinical Presentation and Symptomatology Investigations Differential Diagnosis Course and Prognosis Functional Classification of Mitral Valve Diseases Medical Management Surgical Management Annotated References References 35 Tetralogy of Fallot With Pulmonary Stenosis Abstract Introduction Incidence, Prevalence, and Etiology Anatomy and Morphogenesis Recommendations for Long-Term Follow-up Nursing Considerations Annotated References References 36 Tetralogy of Fallot With Pulmonary Atresia Abstract