The BAHA HC200/300 in comparison with conventional bone conduction hearingaids

A retrospective study was performed on 89 patients from a consecutive serie s who received a BAHA HC200/300 after having previously used conventional b one conduction hearing aids. The patients' performance with the BAHA HC 200 /300 was compared to their performance with conventional bone conduction he aring aids. The patients were divided into two groups, depending on the tim e of implantation (before or after May 1992). The patients in group I (long -term users) were asked to fill in a questionnaire, the same one as they ha d filled in at the initial BAHA fitting more than 5 years previously. The a nswers were compared to their original opinions and difference scores were calculated. The long-term clinical results from group 1 are also presented. Although they are encouraging, the patients' opinion about the BAHA deteri orated somewhat over time. The audiometric results of group 2 were highly c omparable with those of group 1. This confirms the positive results with th e BAHA found in previous studies.