Evidence-based Algorithms for Free Deep Inferior Epigastric Perforator Flap Salvage in Autologous Breast...

Breast reconstruction with the deep inferior epigastric perforator (DIEP) free flap has become the gold standard for autologous breast reconstruction. Flap take-back to the operating room (OR) is an uncommon but difficult situation, requiring prompt and accessible resources. We conducted a literature review and independent expert review to inform evidence-based perioperative algorithms in the event of DIEP flap compromise.

A review of the literature was conducted, including MEDLINE, Embase, Google Scholar, and Cochrane Controlled Register of Trials. Publications examining free flap re-exploration in breast reconstruction were used to inform evidence-based clinical algorithms. The algorithms then underwent expert review and revisions from 6 international experts in microsurgery.

Three evidence-based management algorithms were created. The first algorithm outlines perioperative management strategies to optimize patient care and prompt return to the OR. Nonconstricting flap inset after take-back, salvage medical strategies and postoperative management following flap failure were additionally included. Algorithms 2 (venous congestion) and 3 (vascular thrombosis) provide specific intraoperative strategies surrounding mechanical decompression, pedicle exposure, assessment and extraction of thrombosis, identification and use of alternative recipient vessels, and the usage of intraoperative thrombolytics.

A coherent and stepwise approach to DIEP flap compromise in breast reconstruction was developed. These expert-reviewed algorithms provide an approachable and evidence-based structure to support return to the OR and serve as readily available resources.