RESECTION AND RECONSTRUCTION OF SUPERIOR MESENTERIC VEIN ANEURYSM WITH ANTITHROMBOTIC CATHETER BYPASS - A CASE REPORT watanabe@med.u-toyama.ac.jp

PE086

RESECTION AND RECONSTRUCTION OF SUPERIOR MESENTERIC VEIN ANEURYSM WITH ANTITHROMBOTIC CATHETER BYPASS - A CASE REPORT

6

 

 

 

 

Japan

Poster Exhibition only

The superior mesenteric vein aneurysm (SMVA) is a rare disease, and surgical indications and procedures have not been established.

We report a case which we performed surgery safely for the SMVA.

A 59 years old female was diagnosed with SMVA on contrast-enhanced computed tomography (CECT), during her follow-up for other diseases. Two years later, the CECT showed that it had increased to 25 × 20 mm in size. Since there was a possibility that the SMVA would rupture, we decided to perform surgery after explaining her condition for her. The procedure was performed by the upper midline abdominal incision. The SMVA was present at caudal to the confluence of the superior mesenteric vein and the splenic vein and had a maximum diameter of 28 mm. We inserted an antithrombogenic bypass catheter into the vein of the small mesentery and the right great saphenous vein to return portal blood flow to the vein before resection and reconstruction of the SMVA. We resected a SMV about 20mm containing the SMVA and reconstructed with end-to-end anastomosis. She was discharged on the eighth postoperative day without major complications.

Surgery for SMVA may be considered in cases with a tendency toward enlargement due to the risk of rupture. We were able to reconstruct SMV with a margin of safety using an antithrombotic bypass catheter.