percutaneous transluminal coronary angioplasty


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Related to percutaneous transluminal coronary angioplasty: Percutaneous Transluminal Angioplasty

angioplasty

 [an´je-o-plas″te]
an angiographic procedure for elimination of areas of narrowing in blood vessels.
balloon angioplasty angioplasty in which a balloon catheter is inflated inside an artery, stretching the intima and leaving a ragged interior surface after deflation, which triggers a healing response and breaking up of plaque.
percutaneous transluminal angioplasty a type of balloon angioplasty in which the catheter is inserted through the skin and through the lumen of the vessel to the site of the narrowing.
percutaneous transluminal coronary angioplasty (PTCA) percutaneous transluminal angioplasty to enlarge the lumen of a sclerotic coronary artery (see accompanying illustration). This provides an alternative to cardiac bypass surgery for selected patients with ischemic heart disease. See also heart.
 Percutaneous transluminal coronary angioplasty (PTCA). A, Balloon-tipped catheter positioned in blocked artery. B, Balloon is centered. C, Balloon expands to (D) compress blockage. E, Artery diameter opened. From Polaski and Tatro, 1996.

per·cu·ta·ne·ous trans·lu·mi·nal cor·o·nar·y an·gi·o·plas·ty (PTCA),

an operation for enlarging the narrowed lumen of a coronary artery by inflating and withdrawing through the stenotic region a balloon on the tip of an angiographic catheter.

PTCA is a minimally invasive surgical procedure for the treatment of coronary atherosclerosis. A balloon-tipped catheter is inserted percutaneously into the arterial circulation, advanced to the aortic root, and directed with a flexible guide wire to the site of coronary stenosis. Having been positioned within the narrowed arterial segment, the balloon is inflated so as to stretch the lumen, fracture the obstructing plaque, or both. Balloon angioplasty is considered successful when there is more than a 20% increase in the caliber of the stenotic artery and restoration of at least 50% of normal patency, without acute complications. The procedure has approximately a 90% immediate success rate. It offers advantages in symptom improvement and exercise tolerance when compared with medical therapy, particularly in the short term, and is less hazardous and has a shorter recovery period than coronary artery bypass grafting (CABG). Operative mortality is about 2%. There is a 1-3% risk of nonfatal acute myocardial infarction during the procedure and a 1-3% risk that emergency CABG will be required. Hence, the procedure is contraindicated unless a coronary bypass surgical team is immediately available. It is also contraindicated in people without demonstrated significant vascular obstruction, as well as in those with severe multivessel disease or more than 50% stenosis of the left main coronary artery. Angioplasty performed within 2 hours after onset of pain in acute myocardial infarction yields a lower mortality rate and lower rates of nonfatal reinfarction and hemorrhagic stroke than thrombolytic therapy. Despite the advantages of PTCA, 30-50% of patients require repeat balloon angioplasty or CABG for restenosis within 6 months. Insertion of a stainless steel stent at the time of balloon angioplasty to maintain arterial patency has improved initial success and reduced the 6-month restenosis rate. Paclitaxel- and sirolimus-eluting stents further reduce the risk of restenosis.

percutaneous transluminal coronary angioplasty

(trăns-lo͞o′mə-nəl, trănz-)
n.
A procedure for enlarging a narrowed arterial lumen by peripheral introduction of a balloon-tip catheter followed by dilation of the lumen as the inflated catheter tip is withdrawn.

percutaneous transluminal coronary angioplasty

A term which is now being retired in favour of percutaneous coronary intervention, a term which is broader in scope and includes use of balloons, stents, and atherectomy as means of increasing blood flow through native coronary arteries.

percutaneous transluminal coronary angioplasty

PCTA Interventional cardiology A procedure in which an angioplasty balloon is inserted percutaneously into the arteries advanced to a stenosis, and inflated, reopening the lumen Indications Single and multivessel CAD, stable angina on exertion, unstable angina, acute MI–'primary' PCTA, stenosed renal arteries, arteries with fibromuscular hyperplasia, post-thrombolytic therapy Success rate 90%; re-stenosis in 30%; success is lower with stenoses that are chronic, long, eccentric, angulated, calcified, at branching, or with intraluminal thrombi, unstable angina, ↑ age, ♀. See Balloon angioplasty, Coronary artery bypass surgery, Excimer laser therapy. Cf Balloon valvoplasty.

per·cu·ta·ne·ous trans·lu·mi·nal cor·o·nar·y an·gi·o·plas·ty

(PTCA) (pĕr'kyū-tānĕ-ŭs trans-lūmi-năl kōrŏ-nar-ē anjē-ō-plastē)
Surgical operation for enlarging the narrowed lumen of a coronary artery by inflating and withdrawing through the stenotic region a balloon on the tip of an angiographic catheter.

per·cu·ta·ne·ous trans·lu·mi·nal cor·o·nar·y an·gi·o·plas·ty

(PTCA) (pĕr'kyū-tānĕ-ŭs trans-lūmi-năl kōrŏ-nar-ē anjē-ō-plastē)
Surgical operation for enlarging the narrowed lumen of a coronary artery by inflating and withdrawing through the stenotic region a balloon on the tip of an angiographic catheter.
References in periodicals archive ?
Papadantonaki, Stotts, and Paul (1994) noted percutaneous transluminal coronary angioplasty is a less invasive procedure.
1993 Men 1.4 1.4 ([double dagger]) Women 1.3 1.4 ([double dagger]) * Percutaneous transluminal coronary angioplasty. ([dagger]) Coronary artery bypass grafting.
Early and long-term results of percutaneous transluminal coronary angioplasty in patients age 70 years of age and older with angina pectoris.
Percutaneous transluminal coronary angioplasty (PTCA) is a nonsurgical procedure designed to dilate (widen or expand) narrowed coronary arteries.
Effect of percutaneous transluminal coronary angioplasty on QT dispersion and heart rate variability parameters.
At that time, cardiac rehab was covered only for acute myocardial infarction within the preceding 12 months, coronary artery bypass surgery, current stable angina pectoris, heart valve repair or replacement, percutaneous transluminal coronary angioplasty or coronary stenting, and a heart or heart-lung transplant.
The patient underwent successful percutaneous transluminal coronary angioplasty with stent placement.
Pebax SA MED grades have become an industry standard in cardiovascular devices, including percutaneous transluminal coronary angioplasty (PTCA) catheters.
Luminal narrowing after percutaneous transluminal coronary angioplasty: a multivariate analysis of clinical, procedural and lesion related factors affecting long-term angiographic outcome in the PARK study.
The expanded coverage includes heart valve repair or replacement, percutaneous transluminal coronary angioplasty (PTCA) or coronary stenting, and heart or combined heart-lung transplantation.
Percutaneous coronary intervention (PCI), which includes percutaneous transluminal coronary angioplasty (PTCA) and coronary stenting, has continued expanding its role in the management of coronary atherosclerosis.
Recent evidence[1] suggests that coronary artery bypass grafting (CABG) reduces long-term mortality better than percutaneous transluminal coronary angioplasty (PTCA), but the protective effect of CABG for patients with diabetes who have a future acute myocardial infarction is not known.

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