“…Coronary artery perforation (CAP) is a rare complication of percutaneous coronary intervention (PCI) with an incidence of about 0.2-0.5% [1,2]. It is more common in complex PCI, such as chronic total occlusion (CTO) PCI (4%) [3], especially with retrograde approach (15%) [4], unprotected left main PCI (0.9%) [5], bypass graft PCI (0.32-0.68%) [6], and PCI in women and the elderly [7]. CAP is associated with high risk in-hospital and late major adverse cardiac events, as it can lead to cardiac tamponade, hemodynamic compromise and death [7].…”