title: ST-segment resolution assessed immediately after primary percutaneous coronary intervention correlates with infarct size and left ventricular function in cardiac magnetic resonance at 1-year follow-up.
abstract: BACKGROUND
  Little is known about the predictive value of electrocardiographic ST-segment resolution (STR) assessed immediately after primary percutaneous coronary intervention (PCI). The aim of the study was to analyze the value of STR and maximum single-lead ST-segment elevation assessed immediately after primary PCI in prediction of infarct size and left ventricular function in cardiac magnetic resonance (CMR) at 1-year follow-up.
  
  
  RESULTS
  A total of 28 patients with anterior wall ST-segment elevation myocardial infarction treated with primary PCI entered the study. There was a significant correlation of STR and maximum single-lead ST-segment elevation assessed immediately after primary PCI and CMR infarct size and left ventricular function after 1 year. When analyzed according to standard optimal reperfusion cutoff (70% for STR and 1 mm for single-lead elevation), both electrocardiographic parameters were also good predictors of CMR infarct size and left ventricular function after 1 year.
  
  
  CONCLUSIONS
  ST-segment resolution and the single-lead maximum ST-segment elevation assessed immediately after primary PCI for ST-segment elevation myocardial infarction are good predictors of infarct size and left ventricular function in 1-year follow-up.
authors.affiliation: Second Department of Cardiology, Jagiellonian University Medical College, Krakow, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Rakowski
authors.forename: Artur
authors.initials: A
authors.lastname: Dziewierz
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Siudak
authors.forename: Waldemar
authors.initials: W
authors.lastname: Mielecki
authors.forename: Agata
authors.initials: A
authors.lastname: Brzozowska-Czarnek
authors.forename: Jacek
authors.initials: J
authors.lastname: Legutko
authors.forename: Lukasz
authors.initials: L
authors.lastname: Rzeszutko
authors.forename: Andrzej
authors.initials: A
authors.lastname: Urbanik
authors.forename: Jacek S
authors.initials: JS
authors.lastname: Dubiel
authors.forename: Dariusz
authors.initials: D
authors.lastname: Dudek
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D016896:Treatment Outcome; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery*; D055815:Young Adult