Inclusion criteria  Major patient Man or woman Patient who has given their consent to the use of their data. Patient treated in the ENT department for dizziness between June 2020 and July 2021.  Non-inclusion criteria  Patient who expressed his opposition to participating in the study Inability to provide the subject with enlightened information (difficulties in understanding the subject, cognitive disorders) Subject under safeguard of justice Subject under guardianship or guardianship Neurological signs on clinical examination