title: [Predictors of no-reflow phenomenon after primary percutaneous coronary intervention].
abstract: BACKGROUND
  No-reflow phenomenon is a common event in patients with acute myocardial infarction with ST elevation (STEMI) who underwent primary percutaneous coronary intervention. The objective is to determine the cumulative incidence of no-reflow phenomenon and some predictors related to its occurrence.
  
  
  METHODS
  We retrospectively analyzed the reports of 71 patients with STEMI. Subjects were categorized in two groups, those with no-reflow phenomenon and those without it; their clinical findings were compared. Predictive factors were identified by logistic regression analysis.
  
  
  RESULTS
  We identified 20 patients with no-reflow phenomenon (with a cumulative incidence of 28.1 %) and 51 with adequate reperfusion. In the univariate analysis the following predictors were related to the no-reflow phenomenon: CK-MB = 160 UI/L, Killip class = II, TIMI flow 0, having more than two Q waves in ECG, the form of reperfusion therapy and the presence of intracoronary thrombus. The multivariate logistic regression analysis identified Killip class = II (OR = 9.3, p = 0.008), = two Q waves in ECG (OR = 1.8, p = 0.05), angioplasty as unique reperfusion therapy (OR = 19.9, p = 0.017) and the presence of intracoronary thrombus (OR = 11.9, p = 0.008) as predictors of no-reflow phenomenon.
  
  
  CONCLUSIONS
  The early detection of predictors of no-reflow phenomenon will establish measures aimed to reduce its presentation.
authors.affiliation: Servicio de Cardiología, Hospital Civil de Guadalajara "Doctor Juan I. Menchaca", Guadalajara, Jalisco, México. drmbedbar@gmail.com.
authors.forename: Bernardo M
authors.initials: BM
authors.lastname: Rivera-Linares
authors.forename: Martín
authors.initials: M
authors.lastname: Bedolla-Barajas
authors.forename: Jaime
authors.initials: J
authors.lastname: Morales-Romero
authors.forename: J Eugenio
authors.initials: JE
authors.lastname: Jiménez-Gómez
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000601:surgery; D054318:No-Reflow Phenomenon / Q000453:epidemiology*; D062645:Percutaneous Coronary Intervention; D011183:Postoperative Complications / Q000453:epidemiology*; D011379:Prognosis; D012189:Retrospective Studies
keywords: Myocardial infarction; No-reflow phenomenon; Predictor; Primary percutaneous coronary intervention