Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1992-2-20
pubmed:abstractText
Coronary atherectomy implies removing atheromatous material from the diseased coronary arterial wall. This technique has emerged as an attractive alternative to conventional percutaneous transluminal coronary angioplasty procedures, in an attempt to diminish both initial procedural failure and restenosis rate. Among different technologies, the Simpson's atherotome provides a means of performing directional (i.e. selective) coronary atherectomy (DCA). This device implements a coaxial catheter which is advanced into the lesion over a steerable guidewire. Its distal tip includes a hollow metallic cylinder with a lateral window. Removal of the material is accomplished by a rotating cutter which can be moved distally, once the device's window has been orientated facing the lesion. We have performed 14 DCA in 14 patients. Mean age was 58 years and 12 patients were male. The technique was indicated for unstable angina (7 patients), stable angina (4 patients) and silent myocardial ischemia (3 patients). Fifteen lesions were attempted (13 original and two with restenosis), located as follows: nine in the left anterior descending coronary artery, three in the right coronary artery and three in the left circumflex artery. Eleven lesions were proximal and four were located in mid coronary segments. Twelve lesions (80%) were eccentric, and five (33%) were irregular. Initial angiographic success (residual stenosis less than 50%) was obtained in all 15 lesions (100%). Pre-DCA stenosis was 84 +/- 5% and post-DCA stenosis was 16 +/- 6%. There was no need for urgent coronary artery by-pass surgery and no patient developed an acute myocardial infarction in relation to the procedure. A 82-year-old woman died after the procedure in cardiogenic shock.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
spa
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0300-8932
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
520-6
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
[Guided coronary atherectomy: preliminary results].
pubmed:affiliation
Servicio de Exploración Cardiopulmonar, Hospital Universitario San Carlos, Madrid.
pubmed:publicationType
Journal Article, English Abstract