Approximately 50% of patients with ST-segment elevation myocardial infarction (STEMI) who undergo primary percutaneous coronary intervention (PCI) have multivessel (MV) coronary artery disease (CAD) (1). These patients have higher risk of mortality in comparison with patients with single vessel CAD. Up to date, several retrospective studies and few randomized trials have compared the different strategies of revascularization of these patients (Table 1), including: (I) infarct-related artery (IRA)-only PCI; (II) single procedure MV-PCI; and (III) staged MV-PCI, defined as PCI limited to the IRA during the index procedure followed by planned PCI of significant non-IRA lesions at a different time. However, most randomized trials were either underpowered for comparing the three revascularization strategies or compared only one type of complete revascularization. Therefore, up to 15 meta-analysis (6-20) have been conducted in order to clarify this issue (Figure 1), concluding most of them that complete revascularization is associated to a reduced need of new revascularizations, although no clear benefit of revascularization strategy respect to another one in terms of mortality has been demonstrated thus far.