Comparison of 30-day Clinical Outcomes with SimpliDerm and AlloDerm RTU in Immediate Breast Reconstruction

BACKGROUND: Acellular dermal matrix (ADM) is widely used in breast reconstruction, and outcomes of these procedures may be improved through optimized product design. SimpliDerm is a new human ADM designed to closely preserve the architecture of native dermis, with the goal of improving surgical outcomes. This study reports the initial (30-day) clinical experience with SimpliDerm compared with AlloDerm Ready-To-Use (RTU) in ADM-assisted breast reconstruction. METHODS: Clinical characteristics and outcomes of 59 consecutive patients who underwent immediate 2-stage reconstruction with SimpliDerm (n = 28) or AlloDerm RTU (n = 31) following mastectomy are reported. RESULTS: Fifty-nine women (108 breasts) underwent posmastectomy breast reconstruction with SimpliDerm or AlloDerm RTU. Mean patient age was 51.1 years, and mean body mass index was 28.2 kg/m(2). Reconstructions were predominantly prepectoral (95.4%), used tissue expanders (100%), and followed a skin-sparing (64%) approach to mastectomy. Mean time to final drain removal did not differ between groups (17.0 days, SimpliDerm versus 17.7 days, AlloDerm RTU). Adverse events occurred in 13 (22%) patients; none considered serious—all were mild or moderate in intensity. Adverse event rates did not differ between groups. The observed adverse event profiles and rates are similar to those published for other ADMs in immediate breast reconstruction. CONCLUSIONS: There remains a clinical need for ADMs with more optimal characteristics. This case series describes comparable outcomes with SimpliDerm and AlloDerm RTU over 30 days after immediate 2-stage breast reconstruction.