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Defibrillation
Defibrillation The use of a carefully controlled electric shock, administered either through a device on the exterior of the chest wall or directly to the exposed heart muscle, to restart or normalize heart rhythms.
RELATED TERMS--------------------------------------
Shock
Impaired body function due to blood loss or a disturbance in the circulatory system.
Chest
The area of the body located between the neck and the abdomen. The chest contains the lungs, the heart and part of the aorta. The walls of the chest are supported by the dorsal vertebrae, the ribs, and the sternum.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Muscle
Tissue made up of bundles of long, slender cells that contract when stimulated.
SIMILAR TERMS--------------------------------------
Defiance Regional Medical Center
The Defiance Regional Medical Center is a hospital in Defiance, Ohio, United States.
Defibrillator
An electronic device used to establish normal heartbeat.
Defibrillator, implantable cardiac
A device put within the body that is designed to recognize certain types of abnormal heart rhythms (arrhythmias) and correct them.
Deficiency diseases
Any disorder caused by a lack of essential nutrients.
Deficiency, adenosine deaminase (ADA)
A genetic (inherited) condition that results in a immune deficiency disorder called severe combined immunodeficiency disease. Adenosine deaminase is an enzyme that plays a key role in salvaging purine molecules.
Deficiency, ankyrin
Known also as hereditary spherocytosis (HS), this is a genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing) and splenomegaly (enlargement of the spleen), due to deficiency of ankyrin, a protein in the membrane of the red cell.
Deficiency, ceruloplasmin
Lack of the protein ceruloplasmin from the blood and accumulation of iron in the pancreas, liver and brain, causing diabetes and progressive nervous system degeneration with the tremors and gait abnormalities characteristic of Parkinson disease. Ceruloplasmin deficiency is agenetic condition, also known as aceruloplasminemia.
Deficiency, FALDH
Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a triad of clinical findings consisting of ichthyosis (thickened fish-like skin), spastic paraplegia (spasticity of the legs) and mental retardation.
Deficiency, GALT
Lack of the enzyme called GALT (galactose-1-phosphate uridyl transferase) which causes the genetic metabolic disease galactosemia, one of the diseases in many newborn screening panels. The disease can be fatal, if undetected. If detected, it can be treated by avoiding galactose in the diet.
Deficiency, glucocerebrosidase
Causes type 1 Gaucher disease, a progressive genetic disease due to an enzyme defect. The enzyme, glucocerebrosidase, is needed to break down the chemical glucocerebroside. The enzyme defect leads to the progressive accumulation of glucocerebroside in the spleen, liver, and lymph nodes.
Deficiency, glucose-6-phosphate dehydrogenase
Deficiency of G6PD is the commonest disease-causing enzyme defect in humans affecting an estimated 400 million people. The G6PD gene is on the X chromosome. Males with the enzyme deficiency develop anemia due to breakup of their red blood cells when they are exposed to oxidant drugs such as the antimalarial primaquine, the sulfonamide antibiotics or sulfones, naphthalene moth balls, or fava beans.
Deficiency, iron
The most common known form of nutritional disorder in the world, iron deficiency results in anemia because iron is necessary to make hemoglobin, key molecule in red blood cells responsible for the transport of oxygen. In iron deficiency anemia, the red cells appear abnormal and are unusually small (microcytic) and pale (hypochromic). The pallor of the red cells reflects their low hemoglobin content.
Deficiency, lactase
Not enough of an enzyme called lactase in the small intestine to digest lactose, a prominent component of milk and most other dairy products. Lactose is sometimes also used as an ingredient in other foods, so anyone with lactase deficiency should check food labels with care.
Deficiency, LCHAD
Acute fatty liver of pregnancy (AFLP) has been found to be associated in some cases with an abnormality of fatty-acid metabolism. This abnormality is a deficiency of the enzyme long-chain-3-hydroxyacyl-CoA dehydrogenease (LCHAD).
Deficiency, magnesium
Can occur due to inadequate intake or impaired intestinal absorption of magnesium. Low magnesium (hypomagnesemia) is often associated with low calcium (hypocalcemia) and potassium (hypokalemia) levels. Deficiency of magnesium causes increased irritability of the nervous system with tetany (spasms of the hands and feet, muscular twitching and cramps, spasm of the larynx, etc.).
Deficiency, protein C
Protein C is a protein in plasma that enters into the cascade of biochemical events leading to the formation of a clot. Deficiency of protein C results in thrombotic (clotting) disease.
Deficiency, selenium
Lack of the essential mineral selenium, which can cause Keshan disease, a fatal form of cardiomyopathy (disease of the heart muscle) that was first observed in Keshan province in China and has since found elsewhere. Treatment involves ensuring adequate selenium. The recommended dietary allowance (RDA) is currently 55 micrograms of selenium per day for adult men and women, 60 micrograms per day for women during pregnancy and 70 micrograms per day for women during lactation. Food sources of selenium include seafoods, some meats such as kidney and liver, and some grains and seeds.
Deficiency, sphingomyelinase
Also called Niemann-Pick disease, this is a disorder of the metabolism of a lipid (fat) called sphingomyelin that usually causes the progressive development of enlargement of the liver and spleen (hepatosplenomegaly), "swollen glands" (lymphadenopathy), anemia and mental and physical deterioration.
Deficiency, UDP-glucuronosyltransferase
Underactivity of a liver enzyme that is essential to the disposal of bilirubin (the chemical that results from the normal breakdown of hemoglobin from red blood cells).
Deficiency, zinc
According to the National Academy of Sciences, the Recommended Dietary Allowances of zinc are 12 milligrams per day for women and 10 milligrams per day for men. Food sources of zinc include meat including liver, eggs, seafood, nuts and cereal.
Definity
Definity is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): perflutren .
PREVIOUS AND NEXT TERMS--------------------------------------
Defect, enzyme
An abnormality in the protein (enzyme) important in catalyzing a normal biochemical reaction in the body. Disorders result from a deficiency (or functional abnormality) of an enzyme.
Defect, neural tube
A major birth defect caused by abnormal development of the neural tube, the structure present during embryonic life which gives rise to the central nervous system - the brain and spinal cord. Neural tube defects (NTDs) are among the most common birth defects that cause infant mortality (death) and serious disability.
Defect, ventricular septal (VSD)
A hole in the septum (the wall) between the lower chambers of the heart (the ventricles).
Defensin
A family of potent antibiotics made within the body by neutrophils (a type of white blood cell) and macrophages (cells that can engulf foreign particles). The defensins play important roles against invading microbes. They act against bacteria, fungi and viruses by binding to their membranes and increasing membrane permeability. On a chemical level, the defensins are small peptides unusually rich in the amino acid cysteine (Cys).The human defensins are classified into the alpha-defensins and beta-defensins on the basis of their sequence homology and their Cys residues.
Defensive medicine
Medical practices designed to avert the future possibility of malpractice suits. In defensive medicine, responses are undertaken primarily to avoid liability rather than to benefit the patient. Doctors may order tests, procedures, or visits, or avoid high-risk patients or procedures primarily (but not necessarily solely) to reduce their exposure to malpractice liability. Defensive medicine is one of the least desirable effects of the rise in medical litigation. Defensive medicine increases the cost of health care and may expose patients to unnecessary risks.
Defibrillation
Defibrillator, implantable cardiac
A device put within the body that is designed to recognize certain types of abnormal heart rhythms (arrhythmias) and correct them.
Deficiency, adenosine deaminase (ADA)
A genetic (inherited) condition that results in a immune deficiency disorder called severe combined immunodeficiency disease. Adenosine deaminase is an enzyme that plays a key role in salvaging purine molecules.
Deficiency, ankyrin
Known also as hereditary spherocytosis (HS), this is a genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing) and splenomegaly (enlargement of the spleen), due to deficiency of ankyrin, a protein in the membrane of the red cell.
Deficiency, ceruloplasmin
Lack of the protein ceruloplasmin from the blood and accumulation of iron in the pancreas, liver and brain, causing diabetes and progressive nervous system degeneration with the tremors and gait abnormalities characteristic of Parkinson disease. Ceruloplasmin deficiency is agenetic condition, also known as aceruloplasminemia.
Deficiency, FALDH
Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a triad of clinical findings consisting of ichthyosis (thickened fish-like skin), spastic paraplegia (spasticity of the legs) and mental retardation.
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