- A procedure for opening up an artery by removing the plaque (atheroma) produced by the build-up of cholesterol and other fatty substances in the inner lining of the artery from atherosclerosis ("hardening of the arteries"). Atherectomy is done most often in major arteries — such as the coronary arteries within the heart muscle and the carotid and vertebral arteries leading up to the head and brain — that have experienced the occlusive effects of atherosclerosis. Atherectomy can be done by various means, including a conventional surgical incision to open up the vessel or a catheter inserted into the artery the same way as in angioplasty. The catheter may have a laser that vaporizes the plaque, a rotating shaver (a "burr" device) on the end of the catheter, or a dissectional device that shaves off the plaque.
Balloon angioplasty or stenting may then be done after the atherectomy. In the US, atherectomy is also called the "Rotorooter" procedure (after the name of a company that reams out drainage pipes).
* * *Any removal by surgery or specialized catheterization of an atheroma in the coronary or any other artery.
* * *ath·er·ec·to·my .ath-ə-'rek-tə-mē n, pl -mies surgical removal of atheromatous plaque from within a blood vessel by threading a catheter with a rotating cutting blade through blood vessels to the point of the lesion and using the blade to shave away the plaque
* * *ath·er·ec·to·my (ath″ər-ekґtə-me) [ather- + ectomy] the removal of atherosclerotic plaque from an artery using a rotary cutter inside a special catheter guided radiographically; it does not extend to the tunica intima as endarterectomy does.
Medical dictionary. 2011.
Look at other dictionaries:
atherectomy — /ath euh rek teuh mee/, n., pl. atherectomies. the removal of plaque from an artery by means of a tiny rotating cutting blade inserted through a catheter. [ATHER(OMA) + ECTOMY] * * * … Universalium
atherectomy — noun The surgical procedure to remove plaque from an artery … Wiktionary
atherectomy — /ath euh rek teuh mee/, n., pl. atherectomies. the removal of plaque from an artery by means of a tiny rotating cutting blade inserted through a catheter. [ATHER(OMA) + ECTOMY] … Useful english dictionary
atherectomy catheter — a catheter containing a rotating cutter and a collecting chamber for debris, used for atherectomy and endarterectomy; it is inserted percutaneously under radiographic guidance … Medical dictionary
directional atherectomy — atherectomy performed using a directional atherectomy catheter … Medical dictionary
directional atherectomy catheter — a type of atherectomy catheter whose direction can be shifted to shave off additional plaque … Medical dictionary
rotational atherectomy — rotablation … Medical dictionary
transluminal atherectomy — see under endarterectomy … Medical dictionary
Angioplasty — Intervention Balloon angioplasty. ICD 9 CM … Wikipedia
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