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(Radiology. 2000;215:594-599.)
© RSNA, 2000

Technical Developments

Endovascular Stent-Graft Deployment: Temporary Vena Caval Occlusion with Balloons to Control Aortic Blood Flow-Experimental Canine Study and Initial Clinical Experience1

Tsuneo Ishiguchi, MD, Naomichi Nishikimi, MD, Akihiko Usui, MD and Takeo Ishigaki, MD

1 From the Departments of Radiology (T. Ishiguchi, T. Ishigaki), First Department of Surgery (N.N.), and Thoracic Surgery (A.U.), Nagoya University School of Medicine, 65 Tsurumai-cho, Showaku, Nagoya 466-8550, Japan. From the 1998 RSNA scientific assembly. Received March 5, 1999; revision requested June 2; revision received July 2; accepted July 22. Address correspondence to T. Ishiguchi (e-mail: ishiguti@met.nagoya-u.ac.jp).

Vena caval occlusion was evaluated in animal experiments. In five patients with thoracic aortic aneurysms, two balloon catheters were introduced via the femoral vein to the inferior vena cava and superior vena cava and inflated before stent-graft deployment. Aortic pressure and flow were immediately decreased, which minimized the downstream shift of the stent-grafts. Temporary vena caval occlusion is safe and effective for precise aortic stent-graft deployment.

Index terms: Aneurysm, aortic, 943.73, 981.73 • Animals • Aorta, grafts and prostheses, 943.1268, 981.1268 • Grafts, interventional procedures, 943.1268, 981.1268 • Venae cavae, interventional procedures, 946. 1268, 982.1268




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