Reliability and Complications of 500 Consecutive Cochlear Implantations

摘要: Objectives To assess device failures as well early postoperative, late and medical complications occurring after cochlear implantation to discuss their causes treatments. Study Design Retrospective study of 500 consecutive implantations. Setting Tertiary referral center. Patients All patients receiving implants at our institution between 1989 2006. Main Outcome Measures treatments were systematically reviewed with a maximum follow-up 18 years. The number reimplantations was calculated according duration determine the implant survival rate. Specific risks reimplantation for groups differing durations implantation. Results overall rate 16.0% (79 500), minor accounting 5.6%; major complications, 3.2%; reimplantations, 7.2%. Reasons revision surgery failure, infection, trauma, “soft failure” (failure despite normal results from integrity testing). Revision performed in 51 cases (10.2%), other managed medically (28 500; 5.6%). hard soft 6% (30 500). Seventy-two percent occurred within 5 risk severe infection (eventually requiring explantation) 1.4% (7 There 1 case transient facial palsy following (0.2%), incidence postsurgical meningitis 0. Conclusions Cochlear is safe technique relatively low complication rate; however, certain may require specific attention prevent or correct them.