Departmental Bulletin Paper Accessory left gastric artery aneurysms in granulomatosis with polyangiitis : a case report and literature review

Tomosugi, Toshihide  ,  Takahashi, Takuji  ,  Kawase, Yoshihisa  ,  Yoshida, Koichi  ,  Hayashi, Shogo  ,  Sugiyama, Takefumi  ,  Shimizu, Mitsuya  ,  Shoka, Michita  ,  Sawaki, Kohichi  ,  Onishi, Eiji  ,  Hayashi, Naomi  ,  Matsushita, Hidenobu  ,  Okochi, Osamu

79 ( 1 )  , pp.75 - 83 , 2017-02 , Nagoya University Graduate School of Medicine, School of Medicine
ISSN:0027-7622
Description
Aneurysm formation is a potential complication of granulomatosis with polyangiitis (GPA), previously known as Wegener’s granulomatosis. It is a very rare complication, but immediate diagnosis and therapy should be performed because an aneurysm can be life-threatening if it ruptures. An accessory left gastric artery (ALGA) is also a rare variant gastric artery that may obtain its blood supply from the left hepatic artery and left gastric artery. We herein describe a 57-year-old Japanese man who was diagnosed with GPA complicated by aneurysm rupture in an ALGA. Emergency surgery was performed after failure of arterial coil embolization to interrupt blood flow in the ALGA. The patient underwent partial resection of the lesser omentum, which contained all aneurysms. During partial resection of the lesser omentum, both the left gastric artery and ALGA were ligated because they were thought to be feeders of the aneurysms. Postoperative recovery was uneventful; no bleeding or recurrence of the aneurysms occurred. Immediate diagnosis and therapy should be performed for patients with GPA with symptoms of vascular ischemia or aortitis. Endovascular intervention is the first-choice therapy especially for hemodynamically stable patients with ruptured aneurysms or aneurysms located on variant arteries, which may have multiple blood supplies. In the present case, although endovascular treatment failed, the approach described herein was helpful during open surgery.
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