| ABBR | ABBR - Abbreviation - Description | — |
| AF | A-fib | AF | A-fib - Atrial fibrillation - an abnormal heart rhythm characterized by rapid and irregular beating. The disease increases the risk of heart failure, dementia, and stroke. | |
| AHI | AI | AHI - Apnoea/Hypopnoea index, Apnoea-Hypopnoea index | AI - Apnoea index - The Apnea–Hypopnea Index or Apnoea–Hypopnoea Index (AHI) is an index used to indicate the severity of sleep apnea. It is represented by the number of apnea (pause in breathing) and hypopnea (disorder which involves episodes of overly shallow breathing) events per hour of sleep. | |
| AIDR | AIDR - Artificial intervertebral disc replacement - Artificial disc replacement (ADR), or total disc replacement (TDR), is a type of arthroplasty. It is a surgical procedure in which degenerated intervertebral discs in the spinal column are replaced with artificial devices in the lumbar (lower) or cervical (upper) spine. | |
| APD | APD - Automated Peritoneal Dialysis - a treatment for patients with severe chronic kidney disease. The process uses the patient's peritoneum in the abdomen as a membrane across which fluids and dissolved substances (electrolytes, urea, glucose, albumin and other small molecules) are exchanged from the blood. | |
| APHAB | APHAB - Abbreviated Profile of Hearing Aid Benefit - The APHAB is a 24-item self-assessment inventory in which patients report the amount of trouble they are having with communication or noises in various everyday situations. | |
| AUC | AUROC | AUC - Area under the curve - When using normalized units, the area under the curve (often referred to as simply the AUC, or AUROC) is equal to the probability that a classifier will rank a randomly chosen positive instance higher than a randomly chosen negative one (assuming 'positive' ranks higher than 'negative') | |
| BIS | Bispectral index (BIS) is one of several technologies used to monitor depth of anesthesia. BIS monitors are intended to replace or supplement Guedel's classification system for determining depth of anesthesia. | |
| BSCVA | BSCVA - Best spectacle-corrected visual acuity. Visual acuity (VA) is acuteness or clearness of vision. It depends on optical and neural factors, i.e., (i) the sharpness of the retinal focus within the eye, (ii) the intactness and functioning of the retina, and (iii) the sensitivity of the interpretative faculty of the brain. | |
| CAD | CAD - Computer-aided detection | computer-aided diagnosis - CAD is a technology designed to decrease observational oversights—and thus the false negative rates—of physicians interpreting medical images. | |
| CAD | IHD | CAD - Coronary artery disease - Coronary artery disease (CAD), also known as ischemic heart disease (IHD), atherosclerotic heart disease, atherosclerotic cardiovascular disease, and coronary heart disease, is a group of diseases that includes: stable angina, unstable angina, myocardial infarction, and sudden coronary death. | |
| CBCT | CBCT - Cone-beam computed tomography - Cone beam computed tomography (or CBCT, also referred to as C-arm CT, cone beam volume CT, or flat panel CT) is a medical imaging technique consisting of X-ray computed tomography where the X-rays are divergent, forming a cone. | |
| CE-CCT | CE-CCT - Contrast enhanced coronary computed tomography - (CECT) Contrast agents are used during contrast enhanced computed (or computerized) tomography examinations to highlight specific tissues and parts of the body. | |
| COSI | COSI - Client Oriented Scale of Improvement - In the Client Oriented Scale of Improvement (COSI) method, the client effectively writes the self-report questionnaire by nominating up to five listening situations in which help with hearing is required. | |
| CPAP | CPAP - Continuous Positive Airway Pressure - CPAP) is a form of positive airway pressure ventilator, which applies mild air pressure on a continuous basis to keep the airways continuously open in a patient who is able to breathe spontaneously on his or her own. | |
| CRT-D | CRT-D - Cardiac Resynchronisation Therapy including Defibrillator - An implanted cardiac resynchronization device is a medical device used in cardiac resynchronization therapy (CRT). It resynchronizes the contractions of the heart’s ventricles by sending tiny electrical impulses to the heart muscle, which can help the heart pump blood throughout the body more efficiently. | |
| CTCAE | CTCAE - Common Terminology Criteria for Adverse Events - CTCAE, formerly called the Common Toxicity Criteria (CTC or NCI-CTC), are a set of criteria for the standardized classification of adverse effects of drugs used in cancer therapy. The CTCAE system is a product of the US National Cancer Institute (NCI). | |
| CTC | CTC - Computed tomographic colonography - CT colonography, also known as virtual colonoscopy, uses low dose radiation CT scanning to obtain an interior view of the colon (the large intestine) that is otherwise only seen with a more invasive procedure where an endoscope is inserted into the rectum and passed through the entire colon. | |
| CT | CT - Computed tomography - Computed tomography (CT) is an imaging procedure that uses special x-ray equipment to create a series of detailed pictures, or scans, of areas inside the body. It is also called computerized tomography and computerized axial tomography (CAT) scanning. | |
| CVC | CVC - Central venous catheters - In medicine, a central venous catheter ("central line", "CVC", "central venous line" or "central venous access catheter") is a catheter placed into a large vein in the neck (internal jugular vein), chest (subclavian vein or axillary vein) or groin (femoral vein). | |
| CVP | MVP | CVP - Central venous pressure - CVP, also known as mean venous pressure (MVP) is the pressure of blood in the thoracic vena cava, near the right atrium of the heart. CVP reflects the amount of blood returning to the heart and the ability of the heart to pump the blood into the arterial system. | |
| DAP | DAP - Decision Analytic Protocol - Decision analysis (DA) is the discipline comprising the philosophy, theory, methodology, and professional practice necessary to address important decisions in a formal manner. Decision analysis includes many procedures, methods, and tools for identifying, clearly representing, and formally assessing important aspects of a decision, for prescribing a recommended course of action by applying the maximum expected utility action axiom to a well-formed representation of the decision, and for translating the formal representation of a decision and its corresponding recommendation into insight for the decision maker and other stakeholders. | |
| DBS | DBS - Deep brain stimulation - Deep brain stimulation (DBS) is a neurosurgical procedure involving the implantation of a medical device called a brain pacemaker, which sends electrical impulses, through implanted electrodes, to specific parts of the brain (brain nucleus) for the treatment of movement and affective disorders. | |
| DGF | DGF - Delayed graft function - Delayed graft function is a form of acute renal failure resulting in post-transplantation oliguria, increased allograft immunogenicity and risk of acute rejection episodes, and decreased long-term survival. | |
| DOR | DOR - Diagnostic odds ratio - In medical testing with binary classification, the diagnostic odds ratio is a measure of the effectiveness of a diagnostic test. It is defined as the ratio of the odds of the test being positive if the subject has a disease relative to the odds of the test being positive if the subject does not have the disease. | |