Peripheral Inflammatory Superior Mesenteric Artery Aneurysm Diagnosed by Intraoperative and Histological Findings: A

Yasuo Suehiro1, Hiroyuki Seo1, Yuko Kubota1

  • 1Department of Cardiovascular Surgery, Osaka Saiseikai Noe Hospital, Osaka, Osaka, Japan.

Insights

Superior mesenteric artery aneurysms (SMAAs) are rare but dangerous. This case study details successful surgical repair of a 36-mm SMAA using an autologous vein graft, preserving mesenteric circulation.

Area of Science:

  • Vascular Surgery
  • Gastrointestinal Surgery
  • Medical Case Reports

Background:

  • Superior mesenteric artery aneurysms (SMAAs) are uncommon vascular lesions.
  • SMAAs carry a significant risk of rupture and associated mortality.
  • Prompt diagnosis and management are crucial for favorable outcomes.

Purpose of the Study:

  • To report a case of incidentally discovered superior mesenteric artery aneurysm (SMAA).
  • To describe the surgical management of a peripheral SMAA.
  • To emphasize the importance of preserving mesenteric circulation during SMAA repair.

Main Methods:

  • A case of an 80-year-old male presenting with acute cholecystitis is described.
  • Incidental finding of a 36-mm peripheral superior mesenteric artery aneurysm (SMAA).
  • Surgical intervention involved SMAA resection and autologous vein graft reconstruction of the superior mesenteric artery (SMA).

Main Results:

  • Intraoperative and histological findings confirmed an inflammatory aneurysm.
  • The patient experienced an uneventful postoperative recovery.
  • Successful preservation of mesenteric blood flow was achieved.

Conclusions:

  • Surgical resection and reconstruction is the preferred treatment for SMAAs.
  • Autologous vein grafting is a viable option for SMA reconstruction.
  • Maintaining adequate mesenteric circulation is paramount after SMAA repair.

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