This project was funded by grants from the Heinsius Houbolt Fund, the KNO-Research Fund Nijmegen, the University of Antwerp (P.J.W. and G.V.C.), the Belgian Nationaal Fonds voor Wetenschappelijk Onderzoek (G.V.C.), and a grant from the German Else Kröner-Fresenius-Stiftung (P.J.W.).
Nonsyndromic Autosomal Dominant Progressive Sensorineural Hearing Loss: Audiologic Analysis of a Pedigree Linked to DFNA2†
Article first published online: 4 JAN 2009
Copyright © 1998 The Triological Society
Volume 108, Issue 1, pages 74–80, January 1998
How to Cite
Kunst, H., Marres, H., Huygen, P., Ensink, R., Van Camp, G., Van Hauwe, P., Coucke, P., Willems, P. and Cremers, C. (1998), Nonsyndromic Autosomal Dominant Progressive Sensorineural Hearing Loss: Audiologic Analysis of a Pedigree Linked to DFNA2. The Laryngoscope, 108: 74–80. doi: 10.1097/00005537-199801000-00014
- Issue published online: 4 JAN 2009
- Article first published online: 4 JAN 2009
- Manuscript Accepted: 1 MAY 1997
An analysis was performed of the regression of the individual hearing threshold on age in the affected persons in a six-generation Dutch family with nonsyndromic autosomal dominant sensorineural hearing loss, which showed linkage to the DFNA2(1p34) region, similar to at least four previously reported nonrelated families. The offset threshold was significantly higher at the high frequencies (around 30 dB at 2 to 8 kHz) than at the lower ones(approximately 0 dB at 0.25 to 1 kHz). Hearing impairment at the higher frequencies may therefore have been present already at birth or in early childhood. The regression coefficient, or the ‘annual threshold increase,’ expressed in dB/y, was about 1 dB/y on average, but the higher frequencies (1 to 8 kHz) showed significantly more rapid progression than the lower frequencies (0.25 to 0.5 kHz).