Complication Rate of Prepectoral Implant-based Breast Reconstruction Using Human Acellular Dermal Matrices

Background: Implant-based breast reconstruction (IBR) is currently the most frequently performed reconstructive technique post mastectomy. Even though submuscular IBR continues to be the most commonly used technique, mastectomy technique optimization, the possibility to check skin viability with indocyanine green angiography, the enhanced propensity of patients undergoing prophylactic mastectomies, and the introduction of acellular dermal matrices (ADMs) have paved the way to the rediscovery of the subcutaneous reconstruction technique. The aim of this article is to update the complication rate of immediate and delayed prepectoral IBR using human ADMs (hADMs). Methods: A literature search, using PubMed, Medline, Cochrane, and Google Scholar database according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines, was conducted to evaluate complication rates of prepectoral implant–based reconstructions using hADMs. The following MeSH terms were used: “prepectoral breast reconstruction acellular dermal matrix,” “prepectoral breast reconstruction ADM,” “human ADM breast reconstruction,” and “human acellular dermal matrix breast reconstruction” (period: 2005–2020; the last search took place on April 2, 2020). Results: This meta-analysis includes 1425 patients (2270 breasts) who had undergone immediate or delayed prepectoral IBR using different types of hADMs. The overall complication rate amounted to 19%. The most frequent complication was represented by infection (7.9%), followed by seroma (4.8%), mastectomy flap necrosis (3.4%), and implant loss (2.8%). Conclusions: The overall complication rate was 19%. The most frequent complications were infection, seroma, and mastectomy flap necrosis, while capsular contracture was rare.

Abstract licence: CC BY-NC-ND

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