Modified Inside-Out Technique for Continued Use of Chronically Occluded Upper Central Veins
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Updated: Mar 3, 2026

Occlusion of the Great and Small Saphenous Vein Using Copolymeric Glue Based on N-Butyl Cyanoacrylate and Methacryloxy Sulfolane
Published on: December 9, 2022
Adnan Hadziomerovic1, Zameer Hirji2, Niamh Coffey2
1Section of Angiography and Interventional Radiology, Department of Radiology (A.H., N.C.), University of Ottawa, 501 Smyth Road, Ottawa, OntarioK1H8L6, Canada; and Department of Radiology (Z.H.), University of British Columbia, New Westminster, BC, Canada..
Abstract:
This report describes a 2-step, inside-out procedure for upper body central venous access in patients with chronic central venous occlusions. Blunt cephalad dissection through the mediastinum was achieved with a curved metal cannula and guide wire followed by percutaneous puncture of an open snare from a right supraclavicular approach and dilation of the tract for a tunneled central venous catheter insertion. Of 9 patients, all had a successful placement of a tunneled central venous catheter using this method. Although this 2-step, inside-out technique is effective for creating access in the presence of central venous occlusion, further clinical evaluation is warranted.
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