angioplasty


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

angioplasty

(ăn`jēōplăs'tē), any surgical repair of a blood vessel, especially balloon angioplasty or percutaneous transluminal coronary angioplasty, a treatment of coronary artery diseasecoronary artery disease,
condition that results when the coronary arteries are narrowed or occluded, most commonly by atherosclerotic deposits of fibrous and fatty tissue. Coronary artery disease is the most common underlying cause of cardiovascular disability and death.
..... Click the link for more information.
. In balloon angioplasty a balloon-tipped catheter is inserted through the skin into a blood vessel and maneuvered to the clogged portion of the artery. There it is threaded into the blockage and inflated, compressing the plaque against the arterial walls. Frequent postoperative reclogging (restenosis) of the treated area has led to the use of alternative techniques such as laser angioplasty, which employs a laser to burn away or vaporize the plaque, and to the study of various drugs, gene therapies, and mechanical devices such as a stainless steel coil, or stent (most often now coated with a drug that inhibits restenosis), designed to hold the plaque back.

angioplasty

[′an·jē·ə‚plas·tē]
(medicine)
A procedure for alleviating blockage of an artery in which a balloon-tipped catheter is threaded into an artery to a point of obstruction and inflated to push the vessel open.
References in periodicals archive ?
The TOBA III study is a prospective, multi-center, single-arm study designed to investigate the safety and efficacy of the Tack Endovascular System in combination with the Medtronic Admiral drug-coated angioplasty balloon in the treatment of peripheral arterial disease in the superficial femoral and popliteal arteries.
In 6 patients angioplasty could not be done as the cardiac catheterization guide wire could not be passed through the occluded artery leading to defective reperfusion.
The angioplasty was successful in all 9 patients with stenosis decreasing from 87 percent to 6 percent.
The idea of having a medical procedure, even a minimally invasive one such as percutaneous angioplasty or stent placement, may be a tough sell to a patient with no outward symptoms.
The researchers then randomly selected half of the patients to receive angioplasty.
Several studies have demonstrated the superiority of emergent angioplasty over thrombolysis for acute MI, but these studies took place in experienced angioplasty centers.
Of the 790 subjects randomly assigned to primary angioplasty, 223 arrived at a facility with angioplasty capabilities and were treated there; 567 had to be transferred to a hospital with angioplasty capability.
Dr Stables said 1,000 patients, who were chosen from 53 centres in Europe and Canada, were given either the stent-assisted angioplasty or by-pass treatment at random.
Food and Drug Administration for ANGIOMAX for use as an anticoagulant in combination with aspirin in patients with unstable angina undergoing coronary balloon angioplasty.
The researchers found that, 30 days after the heart attack, 16% of patients who did not have facilitated angioplasty either had died, suffered another heart attack, or needed an urgent procedure to reopen the artery, compared with 5.
In the first long-term study to directly compare the two approaches, the investigators studied outcomes in 194 MI patients randomly assigned to undergo primary angioplasty and 201 assigned to receive streptokinase.
Boniface Hospital Research Centre is involved in a research program which aims to reduce the effects of angioplasty on arteries and the need to repeat the procedure.