title: Contact dermatitis to silicone after cochlear implantation.
abstract: Complications, although rare, do occur with cochlear implantation. We present a 2-year old with persistent erythema and pruritus over the implantation site with serous discharge from the implanted ear. Patch testing revealed contact dermatitis to silicone LSR-30 encasing the Nuclear Contour-24 device. Hypersensitivity was also noted to silicone LSR-30 in the Med-el device but not to silicone LSR-70 in the Advance Bionics device. Device explantation resulted in complete resolution of symptoms. The patient was then successfully reimplanted with the Advance Bionics device. Erythema and irritation at the implantation site, without leukocytosis, should prompt evaluation for silicone contact dermatitis.
authors.affiliation: Department of Otolaryngology--Head and Neck Surgery, University of Arkansas for Medical Sciences. Little Rock, Arizona, USA.
authors.forename: Sajeev
authors.initials: S
authors.lastname: Puri
authors.forename: John L
authors.initials: JL
authors.lastname: Dornhoffer
authors.forename: Paula E
authors.initials: PE
authors.lastname: North
mesh_terms: D001672:Biocompatible Materials / Q000009:adverse effects*; D002675:Child, Preschool; D019929:Cochlear Implantation / Q000009:adverse effects*; D003054:Cochlear Implants / Q000009:adverse effects*; D017449:Dermatitis, Allergic Contact / Q000209:etiology*; D020878:Device Removal; D005260:Female; D006801:Humans; D012086:Reoperation; D012828:Silicones / Q000009:adverse effects*; D016896:Treatment Outcome
chemical_list: D001672:Biocompatible Materials; D012828:Silicones