Autologous Breast Reconstruction with SIEA Flaps: An Alternative in Selected Cases.

Background: The deep inferior epigastric perforator flap has been shown to be a reliable option for autologous breast reconstruction. A further refinement in the transfer of lower abdominal tissue is the superficial inferior epigastric artery (SIEA) flap that does not require any incision of the rectus abdominis fascia or muscle and is superior regarding donor-site morbidity.

Objectives: We conducted a retrospective study to assess reliability and outcomes of autologous breast reconstruction using SIEA flaps.

Methods: We performed autologous breast reconstruction in 1708 patients at our department between 2009 and 2018. Of those, 28 patients that underwent breast reconstruction using a SIEA flap were included for a retrospective chart review.

Results: Given an overall flap loss rate of 1.8%, we observed total flap necrosis following a SIEA flap in four patients (13%). All cases were secondary to arterial thrombosis. We further recognized a significant correlation between flap failure and a history of spontaneous deep vein thrombosis (p < 0.0001). There was no statistically significant relationship between flap failure and obesity (BMI > 30 kg/mp = 0.9) or flap failure and a history of abdominal operations (p = 0.6).

Conclusions: The SIEA flap provides a reasonable option for autologous breast reconstruction with the great advantage of minimal donor-site morbidity. Nevertheless, its use should be preserved to selected cases with favorable anatomy. We therefore recommend proper patient selection based on preoperative computed tomography angiography, intraoperative clinical evaluation and history of hypercoagulable state.

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