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Congestive heart failure patients that were implanted with an ICD had an all-cause death risk 23% lower than placebo and an absolute decrease in mortality of 7.2 percentage points after five years in the overall population. 1 Reporting in 1999, the Antiarrhythmics Versus Implantable Defibrillators (AVID) trial consisted of 1,016 patients, and ...
cyclic perimenstrual pain and discomfort [1] (premenstrual syndrome) CPR: cardiopulmonary resuscitation: CPT: Current Procedural Terminology: CR: complete remission (complete response) controlled release: Cr: creatinine: CRC: colorectal cancer: CrCl: creatinine clearance (Note: Looks similar to, but does not mean, the chromium chlorides—CrCl ...
The CAC score is an independent marker of risk for cardiac events, cardiac mortality, and all-cause mortality. [2] In addition, it provides additional prognostic information to other cardiovascular risk markers. [2] Obstructions may be present even with an Agatston score of zero, especially in younger patients. [3] A typical coronary CT calcium ...
Class II agents are beta blockers which inhibit SA and AV node depolarization and slow heart rate. They also decrease cardiac oxygen demand and can prevent cardiac remodeling. Not all beta blockers are the same; some are cardio selective (affecting only beta 1 receptors) while others are non-selective (affecting beta 1 and 2 receptors).
Coronary CT angiography (CTA or CCTA) is the use of computed tomography (CT) angiography to assess the coronary arteries of the heart.The patient receives an intravenous injection of radiocontrast and then the heart is scanned using a high speed CT scanner, allowing physicians to assess the extent of occlusion in the coronary arteries, usually in order to diagnose coronary artery disease.
Limited number of episodes of abnormal activity can be stored, [2] with the most recent episode replacing the oldest. [3] Recording can be activated in two ways. First, recording may be activated automatically according to heart rate ranges previously defined and set in the ILR by the physician. If the heart rate drops below, or rises above ...
Cardiac CT (CCT) is a modified form of the traditional chest CT due to the difficulty of imaging the complex, moving heart. [16] This is achieved through the use of thin slices and high-resolution scanning, as well as the addition of electrocardiogram (ECG) gating or triggering to capture a motion-free image.
The first CDI system to be discovered was a Type V secretion system, encoded by the cdiBAI gene cluster found widespread throughout pathogenic Gram-negative bacteria. The first protein encoded in the operon, CdiB, is an outer membrane beta-barrel protein that exports CdiA, presenting it on the cell surface of a CDI-expressing (CDI+) bacterium.