Key result
Earlier IV metoprolol in anterior STEMI is linked to smaller infarct size and higher LVEF.
Why the study?
Does earlier administration of IV metoprolol reduce infarct size and improve LVEF in anterior STEMI patients undergoing primary angioplasty?
Does earlier administration of IV metoprolol reduce infarct size and improve LVEF in anterior STEMI patients undergoing primary angioplasty?
Earlier administration of IV metoprolol during anterior STEMI is associated with reduced infarct size and improved ventricular function.
May support earlier IV metoprolol in anterior STEMI; leaves open confirmation in larger RCTs before practice change.
In anterior STEMI patients undergoing primary angioplasty, the sooner IV metoprolol is administered in the course of infarction, the smaller the infarct and the higher the LVEF. These hypothesis-generating clinical data are supported by a dedicated experimental large animal study.
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García‐Ruiz et al. (2016) studied this question. Earlier administration of IV metoprolol during anterior STEMI was associated with smaller infarct size and higher left ventricular ejection fraction (LVEF).
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