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[Disability in patients with benign paroxysmal positional vertigo with posterior semicircular canal involvement]
B González del Pino1, N Pérez Fernández
1Departamento de Otorrinolaringología, Clínica Universitaria Reina Fabiola, Universidad Católica de Córdoba, Argentina.
Objective:
The aim of this work is to analyze the vestibular function and level of disability in two populations of patients with positional vertigo but with different results in the Dix-Hallpike test.
Material And Methods:
114 patients were assessed. In 65 the Dix-Hallpike test was positive (DH+) and in 49 negative (DH). The caloric test was performed as well as the assessment of disability with the pertinent questionnaires for vestibular disability.
Results:
Patients in the DH+ group showed a higher level of disability in the physical subscale of the DHI and a higher perception of a deteriorated quality of life. Patients in the DH- group showed a more severe disability in the emotional subscale of the DHI.
Conclusions:
Once the phenomenon of nystagmus fatigability is ruled out, patients with positional vertigo and DH- must not be considered a minor form of positional vertigo.