Olfactory hallucinations in primary headache disorders: case series and literature review.
Cephalalgia
; 31(14): 1477-89, 2011 Oct.
Article
em En
| MEDLINE
| ID: mdl-21945891
ABSTRACT
BACKGROUND:
Olfactory hallucinations (phantosmias) have rarely been reported in migraine patients. Unlike visual, sensory, language, brainstem, and motor symptoms, they are not recognized as a form of aura by the International Classification of Headache Disorders.METHODS:
We examined the clinical features of 39 patients (14 new cases and 25 from the literature) with olfactory hallucinations in conjunction with their primary headache disorders.RESULTS:
In a 30-month period, the prevalence of phantosmias among all patients seen at our headache center was 0.66%. Phantosmias occurred most commonly in women with migraine, although they were also seen in several patients with other primary headache diagnoses. The typical hallucination lasted 5-60 minutes, occurred shortly before or simultaneous with the onset of head pain, and was of a highly specific and unpleasant odor, most commonly a burning smell. In the majority of patients, phantosmias diminished or disappeared with initiation of prophylactic therapy for headaches.CONCLUSIONS:
We propose that olfactory hallucinations are probably an uncommon but distinctive form of migraine aura, based on their semiology, timing and response to headache prophylaxis.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Transtornos da Cefaleia Primários
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Alucinações
Tipo de estudo:
Prevalence_studies
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Risk_factors_studies
Limite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article