Key result
Microcatheter retrograde CTO-PCI causes septal collateral artery rupture and cardiac tamponade.
Why the study?
Microcatheters are commonly used in retrograde PCI for chronic total occlusion, but complications related to septal collateral artery dilation and rupture are not well documented.
Case Report (n=1)
Highlights a rare but severe complication of septal collateral artery dilation and rupture causing cardiac tamponade after microcatheter removal during retrograde PCI for CTO.
Alerts operators to septal rupture and tamponade risk after microcatheter use in retrograde CTO PCI; case report leaves open incidence and prevention strategies.
Microcatheters are often used for percutaneous coronary intervention via the retrograde approach through a collateral channel for chronic total occlusion lesions. Recently, we encountered an alarming case in which a septal collateral artery was dilated after the removal of a microcatheter. This dilated septal artery ruptured spontaneously and resulted in a cardiac tamponade, which was successfully treated by pericardiocentesis and coil embolization.
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Hashidomi et al. (2010) conducted a case report in Chronic total occlusion (n=1). Retrograde percutaneous coronary intervention using a microcatheter was evaluated on Dilation and spontaneous rupture of a septal collateral artery resulting in cardiac tamponade. Retrograde percutaneous coronary intervention using a microcatheter for chronic total occlusion was complicated by septal collateral artery dilation, spontaneous rupture, and cardiac tamponade.
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