Publicação
Cluster headache without autonomic symptoms: why is it different?
| Resumo: | BACKGROUND: Some patients with otherwise typical cluster headache (CH) have persistent attacks free of cranial autonomic symptoms (CAS). The factors responsible for this atypical presentation are not known. OBJECTIVES: To identify factors associated to the absence of CAS in patients with CH. METHODS: A prospective series of 157 patients with the diagnosis of CH was analyzed, comparing 148 typical CH patients with 9 CH patients without CAS. RESULTS: Patients without CAS reported significantly less intense attacks (P = .003) when compared to those with CAS. There was also a tendency (not reaching statistical significance) for a higher frequency of females and chronic CH among those without CAS. Otherwise, there were no differences between the two groups (in age, duration of illness, follow-up time, attack duration or frequency, nor side or site of pain). A logistic regression analysis showed that only pain intensity could explain the difference between the two groups, since the other explanatory variables were also associated with different intensity of attacks. CONCLUSIONS: These results support the hypothesis that CH without cranial autonomic symptoms represents a milder form of CH. |
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| Autores principais: | Martins, I |
| Outros Autores: | Gouveia, R; Parreira, E |
| Assunto: | Cluster headache Headache Cefaleia |
| Ano: | 2005 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Hospital Prof. Dr. Fernando Fonseca E.P.E. |
| Idioma: | inglês |
| Origem: | Repositório do Hospital Prof. Doutor Fernando Fonseca |
| Resumo: | BACKGROUND: Some patients with otherwise typical cluster headache (CH) have persistent attacks free of cranial autonomic symptoms (CAS). The factors responsible for this atypical presentation are not known. OBJECTIVES: To identify factors associated to the absence of CAS in patients with CH. METHODS: A prospective series of 157 patients with the diagnosis of CH was analyzed, comparing 148 typical CH patients with 9 CH patients without CAS. RESULTS: Patients without CAS reported significantly less intense attacks (P = .003) when compared to those with CAS. There was also a tendency (not reaching statistical significance) for a higher frequency of females and chronic CH among those without CAS. Otherwise, there were no differences between the two groups (in age, duration of illness, follow-up time, attack duration or frequency, nor side or site of pain). A logistic regression analysis showed that only pain intensity could explain the difference between the two groups, since the other explanatory variables were also associated with different intensity of attacks. CONCLUSIONS: These results support the hypothesis that CH without cranial autonomic symptoms represents a milder form of CH. |
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