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Direct-to-implant breast reconstruction following nipple-sparing mastectomy: predictive factors of adverse surgical outcomes in Asian patients

  • Su, Chun-Lin (Division of Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital) ;
  • Yang, Jia-Ruei (Division of Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital) ;
  • Kuo, Wen-Ling (Department of General Surgery, Linkou Chang Gung Memorial Hospital) ;
  • Chen, Shin-Cheh (Department of General Surgery, Linkou Chang Gung Memorial Hospital) ;
  • Cheong, David Chon-Fok (Division of Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital) ;
  • Huang, Jung-Ju (Division of Reconstructive Microsurgery, Department of Plastic and Reconstructive Surgery, Linkou Chang Gung Memorial Hospital)
  • Received : 2021.02.20
  • Accepted : 2021.07.29
  • Published : 2021.09.15

Abstract

Background Direct-to-implant (DTI) breast reconstruction after nipple-sparing mastectomy (NSM) with the use of acellular dermal matrix (ADM) provides reliable outcomes; however, the use of ADM is associated with a higher risk of complications. We analyzed our experiences of post-NSM DTI without ADM and identified the predictive factors of adverse surgical outcomes. Methods Patients who underwent NSM and immediate DTI or two-stage tissue expander (TE) breast reconstruction from 2009 to 2020 were enrolled. Predictors of adverse endpoints were analyzed. Results There were 100 DTI and 29 TE reconstructions. The TE group had a higher rate of postmastectomy radiotherapy (31% vs. 11%; P=0.009), larger specimens (317.37±176.42 g vs. 272.08±126.33 g; P=0.047), larger implants (360.84±85.19 g vs. 298.83±81.13 g; P=0.004) and a higher implant/TE exposure ratio (10.3% vs. 1%; P=0.035). In DTI reconstruction, age over 50 years (odds ratio [OR], 5.43; 95% confidence interval [CI], 1.50-19.74; P=0.010) and a larger mastectomy weight (OR, 1.65; 95% CI, 1.08-2.51; P=0.021) were associated with a higher risk of acute complications. Intraoperative radiotherapy for the nipple-areolar complex increased the risk of acute complications (OR, 4.05; 95% CI, 1.07-15.27; P=0.039) and the likelihood of revision surgery (OR, 5.57; 95% CI, 1.25-24.93; P=0.025). Conclusions Immediate DTI breast reconstruction following NSM is feasible in Asian patients with smaller breasts.

Keywords

References

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