• Tomasz Rakowski, Artur Dziewierz, Zbigniew Siudak, Waldemar Mielecki, Agata Brzozowska-Czarnek, Jacek Legutko, Lukasz Rzeszutko, Andrzej Urbanik, Jacek S Dubiel, and Dariusz Dudek.
• Second Department of Cardiology, Jagiellonian University Medical College, Krakow, Poland.
• J Electrocardiol. 2009 Mar 1;42(2):152-6.

BackgroundLittle 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.Methods And ResultsA 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.ConclusionsST-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.

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