Percutaneous transluminal coronary angioplasty: Difference between revisions
imported>Robert Badgett |
imported>Robert Badgett |
||
| Line 6: | Line 6: | ||
==Stenting== | ==Stenting== | ||
{{main|Stent}} | {{main|Stent}} | ||
{{Image|Coronary stent.jpg|right|350px|Insertion of the stent on the delivery catheter, expansion of the stent, and lastly appearance after withdrawal of the delivery catheter.}} | |||
{{ | [[Stent]]ing reduces the rate of restenosis, but should not be done if the patient has extensive stenoses, the stenosis is in a very small coronary artery, or if bypass surgery is planned within a few days.<ref name="pmid17202455"/> | ||
Drug eluting stents can reduce restenosis rate<ref name="pmid16971716">{{cite journal |author=Spaulding C, Henry P, Teiger E, ''et al'' |title=Sirolimus-eluting versus uncoated stents in acute myocardial infarction |journal=N. Engl. J. Med. |volume=355 |issue=11 |pages=1093–104 |year=2006 |month=September |pmid=16971716 |doi=10.1056/NEJMoa062006 |url=http://content.nejm.org/cgi/pmidlookup?view=short&pmid=16971716&promo=ONFLNS19 |issn=}}</ref>, but should not be used if the patient cannot take [[clopidogrel]]. | |||
==Complications== | ==Complications== | ||
Revision as of 10:00, 22 October 2009
In medicine, percutaneous transluminal coronary angioplasty (PTCA), also called percutaneous coronary intervention (PCI), is a form of myocardial revascularization in which occurs "dilatation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply."[1]
PTCA may be a treatment for myocardial infarction and an intravascular stent may or may not be left at the site of the stenosis in order to prevent restenosis.[2]
Stenting
Stenting reduces the rate of restenosis, but should not be done if the patient has extensive stenoses, the stenosis is in a very small coronary artery, or if bypass surgery is planned within a few days.[2]
Drug eluting stents can reduce restenosis rate[3], but should not be used if the patient cannot take clopidogrel.
Complications
Ventricular dysrhythmia during PTCA for myocardial infarction indicates an increased risk for mortality at 3 months.[4]
References
- ↑ Anonymous (2024), Percutaneous transluminal coronary angioplasty (English). Medical Subject Headings. U.S. National Library of Medicine.
- ↑ 2.0 2.1 Keeley EC, Hillis LD (2007). "Primary PCI for myocardial infarction with ST-segment elevation". N. Engl. J. Med. 356 (1): 47-54. DOI:10.1056/NEJMct063503. PMID 17202455. Research Blogging.
- ↑ Spaulding C, Henry P, Teiger E, et al (September 2006). "Sirolimus-eluting versus uncoated stents in acute myocardial infarction". N. Engl. J. Med. 355 (11): 1093–104. DOI:10.1056/NEJMoa062006. PMID 16971716. Research Blogging.
- ↑ Mehta, Rajendra H.; Aijing Z. Starr, Renato D. Lopes, Judith S. Hochman, Petr Widimsky, Karen S. Pieper, Paul W. Armstrong, Christopher B. Granger, for the APEX AMI Investigators (2009-05-06). "Incidence of and Outcomes Associated With Ventricular Tachycardia or Fibrillation in Patients Undergoing Primary Percutaneous Coronary Intervention". JAMA 301 (17): 1779-1789. DOI:10.1001/jama.2009.600. Retrieved on 2009-05-06. Research Blogging.