Background: This study compared the reconstructive outcomes and fat necrosis of the profunda artery perforator (PAP) flap with the deep inferior epigastric artery perforator (DIEP) flap. Methods: Data on all DIEP and PAP flap breast reconstructions performed between 2018 and 2021 at Asan Medical Center were compared. The overall reconstructive outcomes and presence of fat necrosis were analyzed through ultrasound evaluation performed by a board-certified radiologist. Results: The PAP (n=43) and DIEP flaps (n=99) were used to reconstruct 31 and 99 breasts, respectively. The average age of the patients in the PAP flap group (39.1 ± 7.3 years) was lower than the DIEP flap group (47.4 ± 7.7 years), and the body mass index of patients undergoing PAP flap reconstruction (22.7 ± 2.8 kg/m²) was lower than those undergoing DIEP flap reconstruction (24.3 ± 3.4 kg/m²). There was no total loss of both flaps. Donor site morbidity was higher in the PAP flap group (11.1%) compared with the DIEP flap (1.0%). The rate of fat necrosis was higher in the PAP flaps (40.7%) than in the DIEP flaps (17.8%) during ultrasound. Conclusions: In our study, PAP flap reconstruction tended to be performed in patients who were younger with lower BMIs compared with the DIEP flap. Successful reconstructive outcomes were observed in both the PAP and DIEP flaps; however, a higher rate of necrosis was observed in the PAP flap compared with the DIEP flap.
Background: Prepectoral direct-to-implant insertion (DTI) with acellular dermal matrix (ADM) is the currently preferred operation for breast reconstruction. There are different placements of ADM, which are largely classified as wraparound placement or anterior coverage placement. Because there are limited data comparing these two placements, this study aimed to compare the outcomes of these two methods. Methods: This was a retrospective study of immediate prepectoral DTI breast reconstructions performed by a single surgeon between 2018 and 2020. Patients were classified depending on the ADM placement type used. Surgical outcomes and breast shape changes using nipple position during follow-up were compared. Results: A total of 159 patients were included in the study, with 87 in the wraparound group and 72 in the anterior coverage group. Demographics were similar between the two groups, excluding ADM amount used (154.1 cm 2 versus 137.8 cm 2 ; P = 0.01). There were no significant differences in the overall rate of complications between the two groups, including seroma (6.90% versus 5.56%; P = 1.0), total drainage amount (762.1 mL versus 805.9 mL; P = 0.45), and capsular contracture (4.6% versus 1.39%; P = 0.38). The wraparound group had a significantly longer distance change than that of the anterior coverage group in the sternal notch-to-nipple distance (4.44% versus 2.08%; P = 0.03) and midclavicle-to-nipple distance (4.94% versus 2.64%; P = 0.04). Conclusions: Wraparound and anterior coverage placement of ADM in prepectoral DTI breast reconstruction showed similar complication rates, including seroma, drainage amount, and capsular contracture. However, wraparound placement can make the breast more ptotic in shape compared with anterior coverage placement.
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