|
| | |
Lead Extraction
Lead Extraction A lead is a special wire that delivers energy from a pacemaker or implantable cardioverter defibrillator (ICD) to the heart muscle.A lead extraction is the removal of one or more leads from inside the heart. Leads that are placed outside the heart during open heart surgery cannot be removed during this type of procedure.
RELATED TERMS--------------------------------------
Pacemaker
An electronic device that is surgically implanted into the patient's heart and chest to regulate heartbeat.
Cardioverter
Although cardioversion (the conversion of one cardiac rhythm to another) may sometimes be done with medications, a cardioverter is now synonymous with a defibrillator.
Defibrillator
An electronic device used to establish normal heartbeat.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Extraction
Removal of a tooth
Surgery
Treating diseases or other medical conditions by operating on a patient to remove or repair parts of the body.
SIMILAR TERMS--------------------------------------
Lead poisoning
When lead, most often from old, peeling paint, is ingested and damages thebody. In high doses, lead causes severe brain damage in children; in smallerdoses it can slow a child's physical growth, cause learning disabilities,and damage the kidneys.
PREVIOUS AND NEXT TERMS--------------------------------------
Lipoatrophy
Small depressions in the subcutaneous tissues just under the skin that form when a person keeps injecting insulin into the same spot. Injecting around the depressed area can very slowly fill in the depression (over a period of many months).
Lipodystrophy
Lumps (lipohypertrophy) or depressions (lipoatrophy) below the surface of the skin that form when a person keeps injecting insulin into the same spot. Both forms of lipodystrophies are harmless. People can decrease this problem by changing (rotating) the places where they inject their insulin. Using purified insulins may also help.
Lipohypertrophy
Bulging of an area of the skin (due to fat accumulation) that forms when a person keeps injecting insulin into the same spot. Continued injection into these lumpy areas delays the absorption of insulin, and is not recommended even though injecting into the lumpy area is painless (as there are no nerve endings in the lump).
Lispro Insulin
Lispro insulin is an insulin analog in which the position of two amino acids are switched. The resulting lispro insulin does not form hexamers (clumps of six molecules linked together) and is thus faster acting than regular insulin. It can be injected immediately before a meal, compared with regular which should be injected 30 minutes or more before a meal.
LASERS
Recently high intensity light (lasers) has been developed for use in the dental field. Dental lasers allow for an easier and cleaner way to cut soft tissue and recently have been improved to enable the dentist to cut hard tissue (enamel) as well. The lasers used in dentistry come in three different variations. The greatest difference is in the laser beam and the depth of cut and temperature at the surface of the cut being made by the laser. The two most common types of soft tissue lasers are the CO2 laser and the YAG laser. The CO2 cuts more on the surface and does not raise the temperature very high on the surface to be treated which allows the tissue a better response to healing. The YAG laser will cut deeper and at a higher temperature so it can overheat some of the underlying structures below the tissue surface. The third type of laser is the newly developed laser for cutting hard tissue (enamel) called the erbium laser. An attribute of the erbium laser is that it does not overheat the tooth so that the tooth pulp (nerve) will not die. The erbium laser is currently being utilized in a small number of dental practices in the United States but may be more generally available in the near future.
Lead Extraction
Leaflets
Thin pieces of tissue or flaps that make up a valve.
Left Ventricular Assist Device (LVAD)
In patients with end-stage heart disease whose hearts do not pump a sufficient amount of blood to keep the body healthy, it is possible to place a mechanical device that aids in the pumping function of the blood. This device is known as a left ventricular assist device. There are many devices available for implantation.
Legal Guardian
A person charged (usually by court appointment) with the power and duty of taking care of and managing the property and rights of another person who is unable to take care of their own affairs.
Leukocyte (white blood cell)
Cells in the blood that seeks and destroys disease-causing microorganisms.
Life-Sustaining Treatment
A medical treatment given to a patient that prolongs life and delays death.
We thank you for using the Health Dictionary to search for Lead Extraction. If you have a better definition for Lead Extraction than the one presented here, please let us know by making use of the suggest a term option. This definition of Lead Extraction may be disputed by other professionals. Our attempt is to provide easy definitions on Lead Extraction and any other medical topic for the public at large.This dictionary contains 25007 terms. |
|
|
