Coil-assisted N-butyl cyanoacrylate embolization vs covered stent implantation for delayed hemorrhage in hepatobiliary and pancreatic surgery

Figure 2 Coil-assisted N-butyl cyanoacrylate embolization for the embolization of the bleeding site (black arrow) after confirming the infeasibility of superselective arterial embolization and covered stent implantation. A: A 3-F microcatheter (light blue) was inserted and advanced through the parent artery (black upward-pointing arrow) distal to the origin of the bleeding artery (black right arrow); B: A detachable coil was placed in the parent artery distal to the origin of the bleeding artery; C and D: An N-butyl cyanoacrylate-lipiodol mixture was gradually injected, with the microcatheter retreating from the coil site up to the parent artery proximal to the origin of the bleeding artery.