Statement: several Patients implanted with a Meso BioMatrix Acellular Peritoneum Matrix suffered Breast Related Adverse Events in both reconstructed breasts.
Primary_evidence: Outcome Measurement:    Rate of Breast Related Adverse Events   Investigators evaluated each subject and each reconstructed breast for the occurrence of an adverse event from the first stage of reconstruction through the final follow-up visit. A breast related adverse event was defined as any untoward medical occurrence related to a reconstructed breast.   Time frame: 18 months Results 1:    Arm/Group Title: Meso BioMatrix Acellular Peritoneum Matrix   Arm/Group Description: All subjects had the Meso BioMatrix Acellular Peritoneum Matrix implanted along with a tissue expander during the first stage of breast reconstruction. After tissue expansion, the tissue expander was replaced with a breast implant during the second stage of reconstruction.   Overall Number of Participants Analyzed: 25   Overall Number of Units Analyzed   Type of Units Analyzed: Reconstructed breasts  Measure Type: NumberUnit of Measure: Reconstructed breasts affected: 12