Part 6 Antianginal Drugs Organic nitrates βreceptor blockers Calcium channel blockers
Part 6 Antianginal Drugs • Organic nitrates • receptor blockers • Calcium channel blockers
1. OVERVIEW brachiocephalic left subclavian artery vena cava eft pulmonary arteries right pulmonary arteries left pulmonary veins right pulmonary veins -left atrium aorta right atrium left cardiac supenor pulmonary vein vena cava trunk right coronary left coronary eft ventricle ght ventricle ngl inferior vena cava apex vena cava Coronary vessels: blood supply for the heart
Coronary vessels: blood supply for the heart 1. OVERVIEW
lumen of vessel coronary ulceration cholesterol plaque Coronary atherosclerosis: cause ot cardiac ischemia
Coronary atherosclerosis: cause of cardiac ischemia
endocardium myocardium base of heart (heart muscle) coronary vessel epicardium (visceral pericardium) parietal pericardium fibrous pericardium (pericardial sac apex of heart Distribution of coronary arteries in the heart
Distribution of coronary arteries in the heart
AV Contractile Oxygen State Difference OXYGEN OXYGEN DEMAND SUPPLY Regional Heart Myocardial Rate ≠ Distnbution Wall Coronary Tension Blood ISCHEMIA Flow Coronary LV Ventricular Vascular Aortic Pressure Volume Resistance Pressure Ischemia(angina pectoris ) imbalance between oxygen demand and supply
Ischemia (angina pectoris ): imbalance between oxygen demand and supply