n-Butyl-2-Cyanoacrylate Packing of True Visceral Artery Aneurysms: A Retrospective Study of an Alternative Embolization Method.

This retrospective study evaluated the feasibility and effectiveness of n-butyl-2-cyanoacrylate (nBCA) packing for true, unruptured visceral artery aneurysms (VAAs) in 18 patients. The cohort included 11 females and 7 males with a mean age of 55.8 years (SD ± 15; range, 27-79 years). The aneurysms had a mean size of 25 mm (SD ± 12; range, 11-58 mm) and consisted of 12 splenic artery aneurysms, 2 superior mesenteric artery aneurysms, 2 inferior pancreaticoduodenal artery aneurysms, and 2 gastroduodenal artery aneurysms. No recanalization was detected on follow-up computed tomography (CT). Partial splenic infarction occurred in 10 patients with splenic artery aneurysms. One patient with myeloproliferative disease developed pancreatic ischemia and splenic vein thrombus after embolization of a splenic artery aneurysm. Another patient with liver graft failure had a subcutaneous hematoma around the puncture site. This study suggests that nBCA packing is a feasible option for the embolization of true VAAs.