title: Stent implantation in acute myocardial infarction.
abstract: Among 138 patients treated with coronary angioplasty during acute myocardial infarction (AMI), 35 (25%) had stent implantation. Mean age was 56 years and 83% were men. Mean onset of chest pain was 6.0 +/- 5.3 hours, and previous thrombolytic therapy was given to 10 patients (29%). Infarct location was anterior in 19 (54%), inferior in 14 (40%), and lateral in 2 patients (6%). Thrombolysis in Myocardial Infarction trial flows 0,1, and 2 were seen in 24 (69%), 6 (17%), and 5 patients (14%), respectively. The culprit vessel was the left anterior descending artery in 18 (51%), right coronary artery in 14 (40%), left circumflex in 2 (6%), and left main coronary artery in 1 patient (3%). Mean vessel diameter was 3.3 +/- 0.3 mm. Indications were: primary in 5 (14%), suboptimal result in 8 (23%), nonocclusive dissection in 14 (40%), and occlusive dissection in 8 patients (23%). Angiographic thrombus after initial angioplasty was present in 12 patients (34%). A total of 46 stents were implanted; mean balloon diameter and pressure were 3.4 +/- 0.4 mm and 15.5 +/- 2.2 atm, respectively. Residual diameter stenosis was 4 +/- 7%. There were 2 deaths; sudden 1, and after elective coronary artery bypass grafting in the other; 2 patients (6%) had groin hematomas. Mean hospitalization was 9.9 +/- 5.0 days. Repeat angiography revealed no stent occlusion. With initial intravenous heparin for 3 to 7 days, all patients received aspirin and ticlopidine for 1 month. Thus, AMI is not a contraindication for stent implantation. The benefits of stenting are a high success rte, low residual diameter stenosis, and low incidence of in-hospital recurrent ischemia. Reduction in restenosis rate in this setting is likely but remains to be determined.
authors.affiliation: Hôpital Cochin, Université René Descartes, Paris.
authors.forename: E
authors.initials: E
authors.lastname: Garcia-Cantu
authors.forename: C
authors.initials: C
authors.lastname: Spaulding
authors.forename: T
authors.initials: T
authors.lastname: Corcos
authors.forename: K B
authors.initials: KB
authors.lastname: Hamda
authors.forename: L
authors.initials: L
authors.lastname: Roussel
authors.forename: X
authors.initials: X
authors.lastname: Favereau
authors.forename: Y
authors.initials: Y
authors.lastname: Guérin
authors.lastname: ChaletY
authors.forename: G
authors.initials: G
authors.lastname: Souffrant
authors.forename: F
authors.initials: F
authors.lastname: Guérin
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000601:surgery*; D009204:Myocardial Revascularization / Q000379:methods*; D015607:Stents; D016896:Treatment Outcome