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 normalize the rhythm of the heart or restart it.
Defibrillator: A device that corrects an abnormal heart rhythm by delivering electrical shocks to restore a normal heartbeat.
- Defibrillator storm
Defibrillator storm: A condition that arises when a defibrillator implanted in the chest to right an arrhythmia (an abnormal heart rhythm) fires off frequently –sometimes several times a day or even more often — each time with a jolt like a boxer’s punch to the chest, because of far advanced heart disease. Defibrillator storm is […]
- Defibrillator, automated external
Defibrillator, automated external: See: Automated external defibrillator.
- Defibrillator, implantable cardiac
Defibrillator, implantable cardiac: A device that is designed to be put in the body to recognize certain types of abnormal heart rhythms (arrhythmias) and correct them by delivering precisely calibrated and timed electrical shocks to restore a normal heartbeat. Defibrillators continuously monitor the heart rhythm in order to detect overly rapid life-threatening arrhythmias, such as […]
- Deficiency, adenosine deaminase (ADA)
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. ADA deficiency is of special interest in the history of genetics. The first successful instance of gene therapy in humans was […]