heart arrhythmia
121T wave alternans — (TWA) is a periodic beat to beat variation in the amplitude or shape of the T wave in an electrocardiogram (ECG or EKG). T wave of ECG TWA was first described in 1908. At that time, only large variations ( macroscopic TWA) could be detected.… …
122disease — I (New American Roget s College Thesaurus) Condition of ill health Nouns 1. disease, illness, sickness, ailment, ailing; morbidity, infirmity, ailment, indisposition; complaint, disorder, malady; functional disorder. 2. condition, affliction,… …
123Implantable cardioverter-defibrillator — An implantable cardioverter defibrillator (ICD) is a small battery powered electrical impulse generator which is implanted in patients who are at risk of sudden cardiac death due to ventricular fibrillation. The device is programmed to detect… …
124D. George Wyse — Dr. D. George Wyse MD, FRCPC, PHD is currently the Chair of the International Experts Advisory Committee of the Libin Cardiovascular Institute of Alberta (LCIA).[1] Dr. Wyse is a recognized and decorated international expert in the area of… …
125atrial fibrillation — Irregular rhythm (arrhythmia) of contraction of the atria (upper heart chambers). The most common major arrhythmia, it may result as a consequence of increased fibrous tissue in the aging heart, of heart disease, or in association with severe… …
126Long QT syndrome — An inherited defect in the heart s rhythm. In the U.S. it is estimated that 4,000 American children and young adults die yearly of the long QT syndrome. It is a common cause of sudden death among school athletes, as well as the cause of many… …
127ventricular fibrillation — Pathol. a cardiac arrhythmia characterized by rapid, chaotic electrical impulses to the ventricles, incomplete ventricular contractions, and resultant loss of pulse and blood pressure. * * * Uncoordinated contraction of the muscle fibres of the… …
128Clinical trials with surprising outcomes — Medicine is an evolving field as new knowledge is acquired through discoveries in the laboratory and through clinical trials. With the acceptance of evidence based medicine, some practices that were thought to be standard of care or represent… …
