Erratum to: Eur Arch Otorhinolaryngol DOI 10.1007/s00405-011-1670-3

In addition to their article, the corresponding author wants to submit the following change. He regrets to remove the last sentence “Moreover, the trigeminal responses were absent in all the cases” from the abstract of the online published article, since they recorded trigeminal responses in 3 out of 9 patients.