Predictors for Prolonged TE-to-Implant Exchange During Implant-Based Breast Reconstruction: A Single Institution Experience

Aesthetic Plast Surg. 2023 Aug 10. doi: 10.1007/s00266-023-03536-3. Online ahead of print.

Abstract

Background: There is limited evidence regarding the factors causing a prolonged time for tissue expander (TE) exchange into a definitive implant using two-stage implant-based breast reconstruction (IBBR). This study aimed to review our experience with IBBR, focusing on the time for TE-to-implant exchange and determining which factors cause a prolonged time for exchange.

Methods: A retrospective review was performed to include women undergoing immediate two-stage IBBR with TEs after total mastectomy between January 2011 and May 2021. Reconstructions with irradiated TEs were excluded. Cases that had a prolonged time for TE-to-implant exchange were defined as those undergoing exchange longer than 232 days, which corresponds to the 75th percentile of the overall study group.

Results: We included 442 reconstructions in our analysis. The median age for our series was 51 years and the median body mass index was 26.43-kg/m2. The median time for TE-to-implant exchange was 155 days [IQR, 107-232]. Cases that had a prolonged time for TE-to-implant exchange were defined as those undergoing exchange on postoperative day 232 or afterward. Diabetes (OR 4.05, p = 0.006), neoadjuvant chemotherapy (OR 2.76, p = 0.006), an increased length of stay (OR 1.54, p = 0.013), and a lengthier time to complete outpatient expansions (OR 1.018, p < 0.001) were independently associated with a prolonged time for exchange.

Conclusion: As evident from our analysis, the time for exchange is highly heterogeneous among patients. Although several factors affect the timing for TE-to-implant exchange, efforts must be directed to finalize outpatient expansions as soon as possible to expedite the transition into a definitive implant.

Level of evidence iii: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Keywords: Breast implantation; Female; Postoperative complications; Tissue expansion devices; Treatment outcome.