RESUMO
OBJECTIVE: To assess the prevalence of falls and fear of falling in patients with migraine compared with controls. DESIGN: Cross-sectional. SETTING: Tertiary headache clinic. PARTICIPANTS: This study consisted of 105 controls and 105 consecutive patients diagnosed with migraine with aura (MA, n=35), migraine without aura (MO, n=35) and chronic migraine (CM, n=35). MAIN OUTCOME MEASURES: Patients were interviewed using a questionnaire containing questions about the history of falls and impairment in balance, and completed the International Falls Efficacy Scale (FES-I). Groups were contrasted using Student's t-test and analysis of variance, and prevalence ratios were estimated. RESULTS: Falls and self-reported impairment in balance are more prevalent in patients with migraine (54% and 69%, respectively) than in controls (2% and 2%, respectively). In particular, patients with CM and MA reported a greater mean number of falls during the previous year {CM 1.4 [standard deviation (SD) 2.2]; MA 2.2 (SD 2.3)} compared with patients with MO [0.5 (SD 1.0); P <0.04] and controls [0.05 (SD 0.2); P <0.002]. The prevalence ratio of falls was greater in patients with MA (7.2; P <0.002) and CM (4.5; P <0.002) compared with controls. Patients with migraine experienced a high level of concern about falls during their daily activities compared with controls (29.8 vs 20.1 points in the FES-I questionnaire; P<0.0001). CONCLUSIONS: The balance impairment of patients with migraine may have a functional impact. Migraine is associated with risk of falling, and patients exhibit a higher prevalence of impairment in balance, falls and fear of falling.
Assuntos
Acidentes por Quedas/estatística & dados numéricos , Medo , Transtornos de Enxaqueca/epidemiologia , Transtornos de Enxaqueca/psicologia , Equilíbrio Postural/fisiologia , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Pessoa de Meia-Idade , Transtornos de Enxaqueca/fisiopatologia , Prevalência , Autorrelato , Adulto JovemRESUMO
A simplified method for the partial purification and enzyme assay of glucosyltransferase from human dental plaque is described. The enzyme obtained has a reasonable specific activity for the assay of soluble and insoluble polysaccharides synthesis. This method may be useful for nonacquainted people with enzymological methods and of great utility in the in vitro evaluation of antiplaque substances.
