[Non-benign paroxysmal positional vertigo]. / Vértigo posicional paroxístico no benigno.

Positional vertigo is a frequent clinical manifestation of vertigo of very different etiologies, being the benign paroxystic positional vertigo (BPPV) the most frequent one of them, representing in some series even the most found etiology of peripheral vertigo. Usually of severe entities, positional vertigo may appear in the context of severe entities and of difficult diagnosis. In these cases, the bearing of the symptoms in spite of the repositioning manoeuvers, the association with otological or neurological symptoms, and the atypical nystagmus evoked by Dix-Hallpike manoeuver, must take the otolaryngologist to suspect of a feasible non benign pathology. We report a case of positional paroxysmal vertigo caused by an intracranial tumour and we review the clinical signs that shoved help us to suspect of non benign pathologies that can mimic a positional vertigo.

[Intra-tympanic gentamicin in the treatment of Ménière's disease: preliminary results ]. / Gentamicina intratimpánica en tratamiento de la enfermedad de Ménière: resultados preliminares.

In the majority of patients suffering of Ménière's disease, medical treatment is sufficient to control symptoms, albeit, in a small number of them, the high intensity and frequency of vertigo spells makes necessary to adopt more aggressive measures, like intratympanic or general aminoglycoside administration, as well as surgical procedures. We present a prospective and longitudinal descriptive study with the results of intratympanic gentamycin in 24 patients labeled of Ménière's disease in the Otolaryngology Department of "Miguel Servet Hospital" in the last two years, after a follow-up period of more than a year, during which controlled medical treatment had been proved unsuccesfull. We go over the efficacy in terms of frequency of vertigo crisis, audition average, logoaudiometry and functional level. We obtained good results over vertigo control (types A and B of the objective criteria based in the improvement index after treatment) in 16 out of the 24 patients (66.6%), (13 were type A with total absence of crisis and 3 were type B) and an acceptable result (type C) in three of them (12.5.%). In the other five patients (20.83%) results were disappointing (types D and E) compelling to apply surgical treatment. We have tried to evaluate intratympanic gentamycin as an alternative treatment to more aggressive technics and we consider it to be a good option, with a low risk and scarce complications in the no pharmacologically controlled Ménière's disease patients.

[Stapedectomy: long term results]. / Resultados a largo plazo de las estapedectomías.

Stapedectomy, with its most innovatory variations, constitutes the treatment of choice for otoesclerosis. Short term results are spectacular, getting GAP closures of less than 5 dB approximatelly in 94% patients, variations depending on the authors. Long term follow up check results show a gradual auditory deterioration. The aim of this study is to audiometric evolution of patients operated of stapedectomy 7 to 10 years ago in our department and to correlate the results with those obtained by other authors, in an attempt to unify conclusions.