In myocardial infarction (MI) there is necrosis of cardiac muscle due to inadequate coronary circulation. Sudden death may occur when obstruction to coronary flow is precarious. Most deaths occurring within 24 hours of the onset of attack are due to ventricular fibrillation. Anatomy of Coronary Arteries: There are three main sources of coronary arterial blood supply: (1) The anterior descending [...]
The term Cor Pulmonale was introduced by Stuart Harris (1952), Chronic Pulmonary Heart Disease (CPHD) or chronic cor pulmonale; is characterised by hypertrophy of the right ventricle, due to hypertension in the pulmonary circuit caused by chronic lung disease or pulmonary vascular pathology. But CPHD does not include cardiac damage due to pulmonary hypertension of mitral stenosis or congenital heart [...]
Heart Disease Mitral valve disease is the commonest form of chronic rheumatic valve disease, the valve being affected m about 85 per cent of cases. The affected valve may be either stenosed offering obstruction to the flow of blood from the left atrium to the left ventricle or the valve may be incompetent resulting in regurgitation of blood from the [...]