Stacy Fan1, Hanny Chen2, Aaron Grant3, Tanya DeLyzer4. 1. Division of Plastic and Reconstructive Surgery, Western University, London, Ontario, Canada. 2. Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada. 3. Division of Plastic and Reconstructive Surgery, LHSC-University Hospital Campus, London, Ontario, Canada. 4. Division of Plastic and Reconstructive Surgery, LHSC-Victoria Hospital Campus, London, Ontario, Canada.
Abstract
Background: Immediate alloplastic breast reconstruction is traditionally avoided in patients who require post-mastectomy radiation therapy (PMRT). However, a subset of patients who undergo alloplastic reconstruction may unpredictably require adjuvant radiation. The purpose of this study was to compare outcomes and complications in patients at our institution who had undergone immediate alloplastic breast reconstruction and received PMRT to either the permanent implant or temporary tissue expander. Materials and Methods: A retrospective cohort study was performed looking at patients who underwent immediate alloplastic breast reconstruction over a 10-year period (2009-2019) at our regional breast centre. All patients who underwent immediate alloplastic breast reconstruction and had PMRT were included in the study. Major (wound dehiscence with device exposure, or reconstructive failure) and minor (infection, capsular contracture, revision surgery) complication rates between those patients receiving radiation to a tissue expander versus implant were compared using Fisher exact test (P < .05). Results: Six-hundred ninety-two patients were identified, and 43 patients met inclusion criteria. Of this group, 29 received PMRT to implants and 14 received PMRT to tissue expanders. Complication rates were similar between groups for superficial wound infection (3.4% vs 7.1%), periprosthetic infection (3.4% vs 7.1%), capsular contracture (41.4% vs 21.4%), revision surgery for aesthetics (41.4% vs 21.4%), wound dehiscence and device exposure (3.4% vs 21.3%), and reconstructive failure (10.3% vs 6.7%). Total complication rates were similar between groups (51.7% vs 42.9%). Discussion: Overall 6.4% of patients who underwent immediate alloplastic breast reconstruction required PMRT over a 10-year period. Complication rates for infection, capsular contracture, revision surgery, wound dehiscence and device exposure, and reconstructive failure were similar between both groups. Total complication rates were similar between groups. This information will help to inform decision-making regarding immediate alloplastic reconstruction and expected complications when PMRT is needed.
Background: Immediate alloplastic breast reconstruction is traditionally avoided in patients who require post-mastectomy radiation therapy (PMRT). However, a subset of patients who undergo alloplastic reconstruction may unpredictably require adjuvant radiation. The purpose of this study was to compare outcomes and complications in patients at our institution who had undergone immediate alloplastic breast reconstruction and received PMRT to either the permanent implant or temporary tissue expander. Materials and Methods: A retrospective cohort study was performed looking at patients who underwent immediate alloplastic breast reconstruction over a 10-year period (2009-2019) at our regional breast centre. All patients who underwent immediate alloplastic breast reconstruction and had PMRT were included in the study. Major (wound dehiscence with device exposure, or reconstructive failure) and minor (infection, capsular contracture, revision surgery) complication rates between those patients receiving radiation to a tissue expander versus implant were compared using Fisher exact test (P < .05). Results: Six-hundred ninety-two patients were identified, and 43 patients met inclusion criteria. Of this group, 29 received PMRT to implants and 14 received PMRT to tissue expanders. Complication rates were similar between groups for superficial wound infection (3.4% vs 7.1%), periprosthetic infection (3.4% vs 7.1%), capsular contracture (41.4% vs 21.4%), revision surgery for aesthetics (41.4% vs 21.4%), wound dehiscence and device exposure (3.4% vs 21.3%), and reconstructive failure (10.3% vs 6.7%). Total complication rates were similar between groups (51.7% vs 42.9%). Discussion: Overall 6.4% of patients who underwent immediate alloplastic breast reconstruction required PMRT over a 10-year period. Complication rates for infection, capsular contracture, revision surgery, wound dehiscence and device exposure, and reconstructive failure were similar between both groups. Total complication rates were similar between groups. This information will help to inform decision-making regarding immediate alloplastic reconstruction and expected complications when PMRT is needed.
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