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Allodynia in migraine patients during inter critical period

Alodinia em pacientes com migrânea no período intercrítico

Elder Machado Leite1*; Hugo André de Lima Martins2; Valdenilson Ribeiro Ribas3, Marcelo Moraes Valença4

Abstract

Allodynia can  be  defined as the painful sensation due to non-painful  stimuli, and  is highly prevalent between primary headache patients.  The migraine patients represent the second  larger group  of headache  patients, second  only to tension type headache ones,  and  the understanding  of the pathophysiologic  links between allodynia and this primary headache displays a more than relevant matter for clinical purposes. objective: The objective of this study was to evaluate the prevalence of allodynia complaints and allodynia in physical tests in migraine patients. Methodology:  31 patients were evaluated  by the same neurologist from January to March 2012, in the 19-46 age  group,  8  migraine with no aura  (MNA) patients (7 females and  1 male), and  23 migraine with aura (MWA) patients (22 female and 1 male), according  to the International Headache Society (IHS) criteria, published in 2004. PROCEFALEIA and allodynia questionnaires were used to evaluate prevalence of allodynia complaints in 31  migraine patients. Each patient underwent a complete physical and neurological examination. a SEMMES monofilament (10 g/cm2), a glass tube containing water at 10°C and at 50°C to the dermatomes V1,V2 and V3 of trigeminal nerve, right and left, and C5,  C6,  L3 and L5, also right and left. We used the Fisher exact test were still used to evaluate allodynia. There was a significant prevalence of allodynia in migraine patients (38%).