Ensidig sensorineural dövhet – Resultat av tre interventioner för ensidig sensorineural grav hörselnedsättning: En randomiserad klinisk studie.

Objective: A comparison of three interventions for profound unilateral sensorineural hearing loss. Study Design: Prospective, Crossover Randomized Clinical Trial. Patients: Fifteen participants with profound unilateral sensorineural hearing loss. Interventions: Three technical interventions were compared: Bone Conduction Device (BCD), Contralateral Routing of Signal (CROS), and Remote Microphone (RM). Each intervention was randomly trialed for a period of three weeks, separated by a one week washout period. Outcome measures: Speech in noise recognition test performed under four conditions (squelch, masking, head shadow, and optimal condition) following each intervention. Standardized questionnaires were used in order to evaluate amplification benefit at baseline and following each intervention. Results: In total RM was the intervention with best significant results in the speech recognition in noise test. Participants did not rate a particular intervention as significantly better than any other on questionnaires of benefit. Following the study, CROS was the intervention preferred by the eight of fifteen participants (53%). The majority of participants (80%) chose to continue with an intervention. Conclusion: All interventions presented better speech recognition in noise and subjective benefits in comparison to baseline. People with SSD are a heterogeneous population when looking at perceived difficulties. Future research should focus on segmenting the population of SSD depending on etiology and age of acquired loss for the poorer ear. This would possibly benefit patient in terms of more individual-based clinical routines.