Acute Remodeling of an Adjoining Aneurysm after Endovascular Treatment of a Ruptured Splanchnic Arterial Aneurysm: A Case of Clinically Diagnosed Segmental Arterial Mediolysis

Yoshitaka Nishikawa; Katsuyuki Hoshina; Hiroki Sasaki; Akihiro Hosaka; Kota Yamamoto; Hiroyuki Okamoto; Kunihiro Shigematsu; Tetsuro Miyata

doi:10.3400/avd.cr.12.00060

Case Reports

Acute Remodeling of an Adjoining Aneurysm after Endovascular Treatment of a Ruptured Splanchnic Arterial Aneurysm: A Case of Clinically Diagnosed Segmental Arterial Mediolysis

Yoshitaka Nishikawa, Katsuyuki Hoshina, Hiroki Sasaki, Akihiro Hosaka, Kota Yamamoto, Hiroyuki Okamoto, Kunihiro Shigematsu, Tetsuro Miyata

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Yoshitaka Nishikawa
Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
Katsuyuki Hoshina
Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
Hiroki Sasaki
Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
Akihiro Hosaka
Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
Kota Yamamoto
Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
Hiroyuki Okamoto
Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
Kunihiro Shigematsu
Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
Tetsuro Miyata
Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

Keywords: segmental arterial mediolysis, splanchnic arterial aneurysms, endovascular repair

JOURNAL FREE ACCESS

2012 Volume 5 Issue 4 Pages 449-453

DOI https://doi.org/10.3400/avd.cr.12.00060

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Abstract

A 61-year-old woman with multiple splanchnic arterial aneurysms (SAAs) was transferred to our hospital in a state of shock. She underwent coil embolization under the diagnosis of ruptured pancreaticoduodenal artery aneurysm. Follow-up computed tomography performed 2 weeks later showed rapid enlargement of a gastric artery aneurysm, and she underwent an additional embolization. Atherosclerotic, inflammatory or hereditary causes were excluded, and the patient was clinically diagnosed with segmental arterial mediolysis accompanied by multiple SAAs, one of which showed acute remodeling after endovascular treatment.

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