title: [Coronary stent in acute myocardial infarction].
abstract: From December 1995 to March 1997 fifty patients with acute myocardial infarction, had 57 stents implanted. Mean time since the beginning of symptoms to the procedure was 3.7 +/- 2.9 hours. Twenty-four stents were implanted "de novo", 17 for "sub-optimal" results, 5 for threatened closure and eleven for complex dissection. The arteries treated with stent were left anterior descending in 42%, right coronary in 42%, circumflex in 10%, vein grafts in 4%, intermedial branch in 1% and marginal obtuse branch in 1%. Stent used in most of the cases was AVE in 67% followed by Palmaz-Schatz, Wiktor, Crown, Gianturco-Roubin and Wallstent. Before procedure, coronary flow was TIMI 0 in 66% TIMI 1 in 10% and TIMI 2 in 24%. After procedure, TIMI 3 coronary flow was achieved in 92% of the arteries and other four had "no-reflow" phenomenon. Mean stenosis before procedure was 96% +/- 3.1 and after stenting was 1.76% +/- 2.6 with a stent/artery diameter rate of 1.01. Technical success was 100% and clinical success was achieved in 96% of the cases. Two cases were not successfully due to acute thrombotic closure in one patient and in another one because of cardiogenic shock after two days of a technical successful implantation of stent in LAD artery. There were not recurrent ischemic events (CABG, re-infarction or new coronary angioplasty procedure). Other two patients died for non-cardiac events (acute pancreatitis in one and by septic shock in other). At the time of discharge 96% of patients were treated with aspirin and ticlopidine. Major hematoma was evident in only one case. At a mean follow-up time of 5.6 months +/- 4.2 in 45 patients showed that 73% were in functional class I and none of them had re-infarction, death or needed a new revascularization.
  
  
  CONCLUSIONS
  Stent implantation in acute myocardial infarction is feasible and safe procedure with a low rate of ischemic recurrent events.
authors.affiliation: Departamento de Hemodinámica, Instituto Nacional de Cardiología Ignacio Chávez INCICH, México, D.F.
authors.forename: R
authors.initials: R
authors.lastname: Villavicencio Fernández
authors.forename: A
authors.initials: A
authors.lastname: Marchena Noriega
authors.forename: G
authors.initials: G
authors.lastname: Eid Lidt
authors.forename: A L
authors.initials: AL
authors.lastname: Martín del Campo
authors.forename: M A
authors.initials: MA
authors.lastname: Peña Duque
authors.forename: J
authors.initials: J
authors.lastname: Gaspar Hernández
authors.forename: E
authors.initials: E
authors.lastname: Ban Hayashi
authors.forename: H
authors.initials: H
authors.lastname: Ariza González
authors.forename: M A
authors.initials: MA
authors.lastname: Martínez Ríos
mesh_terms: D000328:Adult; D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D003326:Coronary Circulation; D003627:Data Interpretation, Statistical; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000628:therapy*; D015607:Stents; D013997:Time Factors
vernacular_title: Stent coronario en el infarto agudo del miocardio.