Cardiovascular Disorders Hypertension p 671 Ateriosclerosis silent killer

Cardiovascular Disorders

Hypertension p 671 • Ateriosclerosis • “silent killer” • Heart muscle can die due to lack of Oxygen • Increases chances of CVA: cerebral vascular accident

Coronary Artery Disease • Accumulation of plaque buildup on walls of arteries. • arteriosclerosis

Heart Attack • Mycardial infarction • Caused by an obstructured vessel in heart thrombus, embolus • deprivation of oxygen (normally…body releases hypoxia induced factor which stimulates angiogenesis) • If angiogenesis isn’t successful…part of heart dies

Heart Attack Animation • http: //www. healthcentral. com/cholesterol/u nderstanding-cholesterol-13 -115. html • http: //www. medindia. net/animation/heart_a ttack. asp

Pericarditis • Inflammation of pericardial sac due to viral or bacterial infection • Chest pain, interferes with heart movements

Mitral Valve Prolapse • One or both cusps of mitral valve stretches and bulges into left atrium during ventricular contraction • Blood can regurgitate into the left atrium • Palpitations, fatigue, anxiety, chest pains • associated with arrhythmias (atrial fibrillation) that may progress

Familial Amyloidosis • Amyloid protein deposits into heart • Causes chest pain, failure of cardiac muscles, disturbance of heart rhythm • the deposits physically disrupt tissue architecture; some cases lead to cell death • WHY? calcium ion concentration imbalances • Ultrasound: echocardiogram can detect

Transposition of Great Arteries