A Comparison Between Immediate and Babysitter Deep Inferior Epigastric Perforator Flap Breast Reconstruction in Postoperative Outcomes.

[BACKGROUND] Delayed-immediate, or "babysitter," deep inferior epigastric perforator (DIEP) flap reconstruction, defined as immediate tissue expander or implant placement at the time of mastectomy followed by eventual exchange for DIEP flap, is becoming increasingly popular in breast cancer patients anticipated to receive adjuvant radiotherapy. In this study, we aim to compare delayed-immediate to immediate DIEP flap patients in postoperative outcomes including major complications and surgical site morbidity.

[METHODS] A retrospective cohort study between immediate and delayed-immediate DIEP flap patients was performed. Patient demographics, comorbidities, and preoperative cancer treatment were compared between the 2 cohorts. Clinical outcomes of interest included dehiscence, necrosis, and infection of the breast, abdomen, and umbilicus in the 90-day postoperative period as well as breast hematoma, anastomotic failure, flap loss, and venous thromboembolism.

[RESULTS] Of the 248 patients (443 breasts) included in this study, 193 women (344 breasts) and 55 women (99 breasts) were in the immediate and delayed-immediate cohorts, respectively. The 2 cohorts were comparable in age, body mass index, and comorbidities (P > 0.05). Despite significantly higher rates of preoperative cancer treatment (P < 0.05), delayed-immediate patients were not at an elevated risk for major complications. The 2 cohorts were also comparable in surgical site outcomes, with the exception of breast skin necrosis, which was significantly higher in incidence in the immediate cohort (16.0% vs 2.0%, P < 0.001).

[CONCLUSIONS] This study is the first to directly compare delayed-immediate to immediate DIEP flap reconstruction in postoperative outcomes. Our findings show that babysitter DIEP flaps are a safe option for patients, even in those expected to undergo breast irradiation preoperatively.