Immediate prepectoral breast reconstruction in nipple-sparing mastectomy with Wise-pattern incision in large and ptotic breasts: Our experience and short-term results.

Current breast cancer treatment trends advocate nipple-sparing mastectomy (NSM) as the preferred technique for selected patients. A considerable and ptotic breast is often considered a relative contraindication for NSM due to the increased risk of skin and nipple necrosis. A retrospective review was performed for patients who underwent immediate prepectoral breast reconstruction (PPBR) after NSM with Wise-pattern incision between February 2020 and February 2023 at our institution. This procedure was offered to patients with grade II or III ptosis or large breasts eligible for NSM for therapeutic or prophylactic purpose. Exclusion criteria comprised a preoperative nipple-sternal notch distance greater than 30 cm, previous radiotherapy, pinch test <1 cm, body mass index (BMI) greater than 34 and active smoke. We present our short-term results with this technique. During the study period, 62 patients (76 breasts) had NSM with Wise-pattern incision. Patients had immediate PPBR with implant or tissue expander, both entirely wrapped with ADM. The median age of the patients was 57.0 years [The Interquartile Range (IQR 50.0-68.6)] with a median BMI of 25.5 (IQR 23.3-28.4). The median mastectomy specimen weight was 472 g (341-578). Median implant volume was 465 g (IQR 370-515). Major complications occurred in 8 patients (10.5%). Three patients experienced total nipple-areolar complex (NAC) necrosis (3.9%), and partial NAC necrosis occurred in 2 patients (2.6%). Two patients developed implant infection (2.6%). Univariate analysis showed a statistically significant correlation between major complications and the mastectomy specimen weight (p = 0.003). If oncologically indicated, NSM with Wise-pattern incision and immediate PPBR can safely be performed in selected patients with large and ptotic breasts.

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