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Original Investigation
October 2018

Comparison of 2-Year Complication Rates Among Common Techniques for Postmastectomy Breast Reconstruction

Author Affiliations
  • 1Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor
  • 2Center for Statistical Consultation and Research, University of Michigan, Ann Arbor
  • 3Department of Biostatistics, University of Michigan, Ann Arbor
  • 4Plastic and Reconstructive Surgery, Brigham and Women's Hospital, Boston, Massachusetts
JAMA Surg. 2018;153(10):901-908. doi:10.1001/jamasurg.2018.1687
Key Points

Question  How do long-term complications compare across procedure types in postmastectomy breast reconstruction?

Findings  In this multicenter cohort study of 2343 patients, the overall complication rate was 32.9%. Patients undergoing all autologous reconstruction types had significantly higher odds of developing any complication compared with patients undergoing expander-implant techniques.

Meaning  Rates of complications after breast reconstruction are high and tend to be higher after autologous procedure types.

Abstract

Importance  In breast reconstruction, it is critical for patients and surgeons to have comprehensive information on the relative risks of the available options. However, previous studies that evaluated complications were limited by single-center designs, inadequate follow-up, and confounding.

Objective  To assess 2-year complication rates across common techniques for postmastectomy reconstruction in a multicenter patient population.

Design, Setting, and Participants  This longitudinal, multicenter, prospective cohort study conducted from February 1, 2012, through July 31, 2015, took place at the 11 study sites associated with the Mastectomy Reconstruction Outcomes Consortium study. Eligible patients included women 18 years and older presenting for first-time breast reconstruction with at least 2 years of follow-up. Procedures evaluated included direct-to-implant (DTI) technique, expander-implant (EI) technique, latissimus dorsi (LD) flap, pedicled transverse rectus abdominis myocutaneous (pTRAM) flap, free transverse rectus abdominis myocutaneous (fTRAM) flap, deep inferior epigastric perforator (DIEP) flap, and superficial inferior epigastric artery (SIEA) flap.

Interventions  Postmastectomy breast reconstruction.

Main Outcomes and Measures  Development of complications, reoperative complications, and wound infections during 2-year follow-up. Mixed-effects logistic regression analysis controlled for variability among centers and for demographic and clinical variables.

Results  A total of 2343 patients (mean [SD] age, 49.5 [10.1] years; mean [SD] body mass index, 26.6 [5.7]) met the inclusion criteria. A total of 1525 patients (65.1%) underwent EI reconstruction, with 112 (4.8%) receiving DTI reconstruction, 85 (3.6%) pTRAM flaps, 95 (4.1%) fTRAM flaps, 390 (16.6%) DIEP flaps, 71 (3.0%) LD flaps, and 65 (2.8%) SIEA flaps. Overall, complications were noted in 771 (32.9%), with reoperative complications in 453 (19.3%) and wound infections in 230 (9.8%). Two years postoperatively, patients undergoing any autologous reconstruction type had significantly higher odds of developing any complication compared with those undergoing EI reconstruction (pTRAM flap: odds ratio [OR], 1.91; 95% CI, 1.10-3.31; P = .02; fTRAM flap: OR, 2.05; 95% CI, 1.24-3.40; P = .005; DIEP flap: OR, 1.97; 95% CI, 1.41-2.76; P < .001; LD flaps: OR, 1.87; 95% CI, 1.03-3.40; P = .04; SIEA flap: OR, 4.71; 95% CI, 2.32-9.54; P < .001). With the exception of LD flap reconstructions, all flap procedures were associated with higher odds of reoperative complications (pTRAM flap: OR, 2.48; 95% CI, 1.33-4.64; P = .005; fTRAM flap: OR, 3.02; 95% CI, 1.73-5.29; P < .001; DIEP flap: OR, 2.76; 95% CI, 1.87-4.07; P < .001; SIEA flap: OR, 2.62; 95% CI, 1.24-5.53; P = .01) compared with EI techniques. Of the autologous reconstructions, only patients undergoing DIEP flaps had significantly lower odds of infection compared with those undergoing EI procedures (OR, 0.45; 95% CI, 0.25-0.29; P = .006). However, DTI and EI procedures had higher failure rates (EI and DTI techniques, 7.1%; pTRAM flap, 1.2%; fTRAM flap, 2.1%; DIEP flap, 1.3%; LD flap, 2.8%; and SIEA flap, 0%; P < .001).

Conclusions and Relevance  Significant differences were noted across reconstructive procedure types for overall and reoperative complications, which is critically important information for women and surgeons making breast reconstruction decisions.

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