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Updated: Jun 24, 2026

Computed Tomography (CT) Guided Implantation of a Totally Implantable Venous Access Port (TIVAP) through Subclavian Vein
Published on: January 13, 2026
Superior vena cava clamping for brachiocephalic vein cannulation during heart surgery
1Department of Cardiovascular Surgery, UFUK University, Asagi Ayranci, Ankara 06540, Turkey. erkanece2000@yahoo.com
Abstract:
A new central venous catheterization during open heart surgery is seldom required. Clamping of superior vena cava (SVC) causes adequate brachiocephalic vein distension which facilitates vein puncture. In our experience, approximately 20 s is enough for adequate brachiocephalic vein distension. I usually prefer subclavian vein puncture by supraclavicular approach. By this approach, average superior vein clamping time is about 45 s.
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