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Table 1 Infarct size and MO phenomenon have been associated with adverse ventricular remodeling following STEMI. The relative contribution of these factors is unknown. Infarct size appears to be a stronger determinant of final ejection fraction and left ventricular volumes.

From: 2003 The prognostic significance of the "no-reflow" phenomenon and infarct size to left ventricular remodeling following ST segment elevation acute myocardial infarction

  MOpresent MO absent p
EF% baseline 43.8 ± 11.2 54.9 ± 11.3 < 0.05
EF% follow-up 49 ± 8.6 59.1 ± 11.4 < 0.05
LVEDVml baseline 153 ± 24.6 130.2 ± 28.1 = 0.05
LVEDVml follow-up 192,8 ± 52.9 144.7 ± 24.8 < 0.05
LVESV ml baseline 88.2 ± 28.5 58.2 ± 26.5 < 0.01
LVESV ml follow-up 101.1 ± 42.7 58.5 ± 26.5 < 0.01
Infarct size% LV mass, bseline 134.7 ± 11.7 19.6 ± 14 < 0.05