title: Pilot study of association of bacteria on breast implants with capsular contracture.
abstract: Capsular contracture is the most common and frustrating complication in women who have undergone breast implantation. Its cause and, accordingly, treatment and prevention remain to be elucidated fully. The aim of this prospective observational pilot study was to test the hypothesis that the presence of bacteria on breast implants is associated with capsular contracture. We prospectively studied consecutive patients who underwent breast implant removal for reasons other than overt infection at the Mayo Clinic from February through September 2008. Removed breast implants were processed using a vortexing/sonication procedure and then subjected to semiquantitative culture. Twenty-seven of the 45 implants collected were removed due to significant capsular contracture, among which 9 (33%) had >or=20 CFU bacteria/10 ml sonicate fluid; 18 were removed for reasons other than significant capsular contracture, among which 1 (5%) had >or=20 CFU/10 ml sonicate fluid (P = 0.034). Propionibacterium species, coagulase-negative staphylococci, and Corynebacterium species were the microorganisms isolated. The results of this study demonstrate that there is a significant association between capsular contracture and the presence of bacteria on the implant. The role of these bacteria in the pathogenesis of capsular contracture deserves further study.
authors.affiliation: Division of Clinical Microbiology and Infectious Diseases, Mayo Clinic, Rochester, MN 55905, USA.
authors.forename: Jose L
authors.initials: JL
authors.lastname: Del Pozo
authors.forename: Nho V
authors.initials: NV
authors.lastname: Tran
authors.forename: Paul M
authors.initials: PM
authors.lastname: Petty
authors.forename: Craig H
authors.initials: CH
authors.lastname: Johnson
authors.forename: Molly F
authors.initials: MF
authors.lastname: Walsh
authors.forename: Uldis
authors.initials: U
authors.lastname: Bite
authors.forename: Ricky P
authors.initials: RP
authors.lastname: Clay
authors.forename: Jayawant N
authors.initials: JN
authors.lastname: Mandrekar
authors.forename: Kerryl E
authors.initials: KE
authors.lastname: Piper
authors.forename: James M
authors.initials: JM
authors.lastname: Steckelberg
authors.forename: Robin
authors.initials: R
authors.lastname: Patel
mesh_terms: D000328:Adult; D000368:Aged; D018427:Breast Implants / Q000009:adverse effects* / Q000382:microbiology*; D015169:Colony Count, Microbial; D003286:Contracture / Q000209:etiology* / Q000382:microbiology*; D003352:Corynebacterium / Q000302:isolation & purification*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010865:Pilot Projects; D011424:Propionibacterium / Q000302:isolation & purification*; D013210:Staphylococcus / Q000302:isolation & purification*