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Updated: Jun 3, 2025

Microsurgical Venous Pouch Arterial-Bifurcation Aneurysms in the Rabbit Model: Technical Aspects
Published on: May 11, 2011
A Giant Aneurysm of Vieussens' Arterial Ring With Pulmonary Artery Fistula
Kosuke Nakata1,2, Shuji Moriyama1, Takashi Yoshinaga2
1Department of Cardiovascular Surgery, Kumamoto Rosai Hospital, Yatsushiro, Kumamoto, Japan.
Abstract:
A 79-year-old woman presented with a systolic murmur and dyspnea on exertion. Transthoracic echocardiography and multidetector-row computed tomography revealed a giant aneurysm in an abnormal vessel known as Vieussens' arterial ring (VAR). A pulmonary artery VAR fistula was also observed. Cardiac catheterization revealed a high pulmonary-to-systemic flow ratio (Qp/Qs = 2.1). We ligated the VAR, resected the aneurysm, and closed the fistula using a bovine pericardial patch. The patient's postoperative clinical course was uneventful.
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