Heart Arrhythmia – Definition, Symptoms and Treatment

Definition of Arrhythmia Arrhythmia is irregularity or abnormality of the heart’s contractions. Arrhythmias can result from numerous causes including electrical disturbances of the heart’s pacing mechanisms, physical damage to the heart such as might occur with heart attack, interruptions of the heart’s blood supply that cause myocardial hypoxia (oxygen depletion), severe electrolyte imbalances, and medication side effects. Cocaine use can initiate sudden […]

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Carotid Stenosis – Definition and Treatment

Definition of Carotid Stenosis Carotid Stenosis is narrowing of the carotid artery in the neck due to atherosclerosis. Often carotid stenosis shows no symptoms until it results in a stroke. The doctor may detect carotid stenosis during routine physical examination when listening to the carotid arteries with a stethoscope, which reveals the characteristic murmur sound, carotid bruit, that indicates the stenosis. […]

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Microinfarction

Definition of Microinfarction Tiny arterial occlusions that briefly block the flow of blood to the brain, causing transient ischemic attacks (TIAs), or to the heart. What microinfarction lacks in initial effect it makes up through frequency. It may also affect other key organs such as the kidneys and liver. Conditions that can result in microinfarction […]

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Torsade de Pointes – Definition and Treatment

Definition of Torsade de Pointes A life-threatening ventricular tachycardia (rapid contractions of the ventricles) that is the most serious complication of the arrhythmia disorder long qt syndrome (lqts). Torsade de pointes is a distinctive pattern of QRS complex electrical activity, QRS being the points on the electrocardiogram (ecg) that identify ventricular contraction. The term “torsade de pointes” means “twisting around […]

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Congenital Heart Disease

Definition of Congenital Heart Disease Congenital Heart Disease – heart conditions, including structural anomalies of the heart, that are present from birth. Some forms of congenital heart disease are mild to moderate and require minimal or one-time intervention to correct. Congenital heart malformations are among the most common birth defects in the United States. Though still the […]

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Myocardial Infarction – Definition, Symptoms, Treatment and ECG

Definition of Myocardial Infarction Death of heart tissue. The most common cause of myocardial infarction is occlusion of the coronary arteries such as occurs as a consequence of coronary artery disease (cad) or less frequently of coronary artery spasm. Myocardial infarction is the clinical term doctors use for heart attack. the myocardium has very high oxygen needs, as oxygen is the only […]

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Triglycerides Blood Levels and cholesterol

Definition of Triglycerides Blood Levels The amount of the fatty acid group, triglycerides, that is present in the blood circulation. Most of the body’s fats are in the chemical form of triglycerides, which provide the body with energy. The cells draw triglycerides from the blood to meet their immediate energy needs. The body acquires triglycerides […]

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Coronary Artery Disease (CAD)

Definition of Coronary Artery Disease Atherosclerosis of the coronary arteries that reduces blood flow to the heart. About 14 million Americans have Coronary Artery Disease (CAD), though many of them do not know it until heart attack strikes. Coronary Artery Disease (CAD) causes 1.2 million heart attacks and more than 600,000 deaths in the United States every year. Autopsy findings show that two […]

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Myocarditis – Symptoms, Treatment and Causes

Definition of Myocarditis and Causes Myocarditis is inflammation of the heart muscle, often as a consequence of viral infection that originates elsewhere in the body (such as a cold). Viruses known to cause myocarditis include measles, rubella, coxsackie, and cytomegalovirus (cmv). Myocarditis also may be bacterial, or the consequence of cardiotoxic exposure (such as to radiation […]

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Valvular Heart Disease – Symptoms and Treatment

Definition of Valvular Heart Disease The collective term for the malformations and disorders that can affect the valves of the heart. Valvular heart disease may affect any of the heart’s four valves: mitral, pulmonary, aortic, and tricuspid. The most common forms of valvular heart disease are Stenosis, in which the valve does not open completely […]

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