A Novel Strategy to Supercharge a Deep Inferior Epigastric Artery Perforator Flap after Port-a-Cath Removal
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Updated: Mar 6, 2026

An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
Published on: December 5, 2025
Chad M Teven1, Adrian S H Ooi1, David W Chang1
1Section of Plastic and Reconstructive Surgery, Department of Surgery, The University of Chicago Medicine, Chicago, Ill.
Abstract:
Autologous breast reconstruction using the deep inferior epigastric artery perforator (DIEP) flap has become increasingly popular because of its unique advantages. However, compared with some other forms of abdominal-based autologous reconstruction, DIEP flaps are associated with an increased risk of venous congestion. Many techniques-or lifeboats-have been introduced to diagnose and treat this potentially devastating complication. In this case report, we describe a novel strategy to augment venous drainage when venous congestion is encountered. A patient presented requesting autologous reconstruction and removal of a venous access catheter that had been used for chemotherapy administration. We performed left delayed breast reconstruction using a single-perforator DIEP flap from the right hemiabdomen. The superficial inferior epigastric vein to this flap was preserved. After removal of the Port-a-Cath from the left chest, we anastomosed the superficial inferior epigastric vein to the fibrous capsular sheath that had formed around the indwelling catheter to allow additional venous drainage. Flow through this conduit was confirmed using Doppler ultrasound. There were no flap-related complications, and the patient was discharged in good condition. Further research is warranted to characterize the indications and limitations of this novel lifeboat.

