IMPLANTABLE DEFIBRILLATOR Meaning and
Definition
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An implantable defibrillator, also known as an implantable cardioverter-defibrillator (ICD), is a medical device designed to monitor and correct life-threatening irregular heart rhythms, specifically ventricular tachycardia and ventricular fibrillation. It is surgically implanted beneath the skin, typically near the left collarbone, and connected to leads that are placed within the heart or blood vessels.
The implantable defibrillator functions by continuously monitoring the heart's electrical activity. If it detects an abnormal heart rhythm, it delivers an electrical shock or pacing impulses to restore the heart's normal rhythm. These shocks, delivered through the leads, help to prevent sudden cardiac arrest, a condition in which the heart suddenly stops beating. Implantable defibrillators can also be programmed to deliver anti-tachycardia pacing (ATP), which involves delivering rapid pacing pulses to stop tachycardias without the need for a shock.
The device is equipped with sensors and algorithms that determine when a shock or pacing intervention is necessary. It constantly analyzes the heart's rhythm and adjusts therapy based on specific programmed settings.
Implantable defibrillators are primarily used for patients who have a history of life-threatening arrhythmias, survived sudden cardiac arrest, or are at a high risk of experiencing a life-threatening heart rhythm. This medically advanced device has undoubtedly revolutionized cardiac care, providing an effective and potentially life-saving solution for individuals at risk of sudden cardiac death.
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Etymology of IMPLANTABLE DEFIBRILLATOR
The word "implantable defibrillator" is composed of two main elements: "implantable" and "defibrillator".
1. Implantable: The word "implantable" comes from the Latin word "implantare", which means "to graft in". It is derived from the combination of "in" (meaning "in" or "into") and "plantare" (meaning "to plant"). This term refers to something that can be inserted or placed into the body through a surgical procedure.
2. Defibrillator: The word "defibrillator" consists of two parts: "defibrillate" and the suffix "-or".
- "Defibrillate" is derived from the Latin word "de-" (meaning "remove" or "undo") and "fibrilla" (referring to small fibers), combining to mean "to remove fibrillation".
