Cardiology is a subspecialty of internal medicine dealing with disorders of the heart and blood vessels. The field includes diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology. Physicians specializing in this field of medicine are called cardiologists. Cardiologists should not be confused with cardiac surgeons who are surgeons who perform cardiac surgery - operative procedures on the heart and great vessels.
The Cardiac Muscle
1.1 Cardiac pacemaker (Electrical system of the heart)
1.2 Basic cardiac physiology
2 Disorders of the heart
3 Disorders of the coronary circulation
4 Sudden cardiac death (The abrupt cessation of blood flow, leading to death)
4.1 Treatment of sudden cardiac death
5 Disorders of the myocardium (muscle of the heart)
6 Disorders of the pericardium (outer lining of the heart)
7 Disorders of the heart valves
8 Disorders of the electrical system of the heart (Cardiac electrophysiology)
9 Inflammation and infection of the heart
10 Congenital heart disease
11 Diseases of blood vessels (Vascular diseases)
12 Procedures done for coronary artery disease
13 Devices used in cardiology
14 Diagnostic tests and procedures
15 Cardiac pharmaceutical agents
The Pacemaker of the Heart
The pacemaker of the heart, a tiny area of specialized nervous tissue in the right atrium, sets the heart beating about seventy times a minute. Without it the heart would beat only forty times per minute, which is too slow for the body's needs. The pacemaker, or sinuatrial node, regularly sends out nerve impulses which spread through the two atria, causing them to contract. From the atrioventricular node the contraction spreads down special conducting tissue, the bundle of His, causing the ventricles to contract and pump blood out of the heart.
ECG interptretation
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