Epidemiological and clinical factors impact on the benefit of riluzole in the survival rates of patients with ALS / Impacto de fatores epidemiológicos e clínicos sobre o benefício do riluzol nas taxas de sobrevida de pacientes com ELA

ABSTRACT Objective To investigate the impact of epidemiological and clinical factors on the benefit of riluzole in patients with amyotrophic lateral sclerosis (ALS). Methods The survival rate of 578 patients with ALS (1999-2011) was analyzed by descriptive statistics and Kaplan-Meier curves. Considering the median of the sample survival time (19 months), patients were divided in two groups: below (B19) and above the median (A19). Kaplan-Meier curves compared the survival rates of patients treated with riluzole and with patients who did not take the medication. Results Riluzole increased the survival rates of patients with lower limb onset who were diagnosed after the first appointment in B19. Patients with bulbar onset and diagnosed on the first, or after the first appointment showed higher survival rates in A19. Males lived longer than females in both groups. Conclusion Epidemiological and clinical factors influenced the benefit of riluzole in the survival rates of patients with ALS.

RESUMO Objetivo Investigar o impacto de fatores epidemiológicos e clínicos sobre o benefício do riluzole em pacientes com esclerose lateral amiotrófica (ELA). Métodos A sobrevida de 578 pacientes com ELA (1999-2011) foi analisada por estatística descritiva e curvas de Kaplan-Meier. Considerando a mediana do tempo de sobrevida (19 meses), a amostra foi subdividida em dois grupos: sobrevida abaixo (B19) e acima de 19 meses (A19). As curvas de Kaplan-Meier compararam a sobrevida de pacientes tratados com riluzole e com pacientes que não receberam tratamento. Resultados O riluzole aumentou a sobrevida de pacientes com início nos membros inferiores e diagnosticados após a primeira consulta no grupo B19. Pacientes com início bulbar e diagnosticados na primeira/ após a primeira consulta apresentaram maior sobrevida em A19. Os homens apresentaram sobrevida maior do que as mulheres. Conclusão Foram encontradas diferenças epidemiológicas e clínicas no benefício do riluzole em pacientes com ELA.

A síndrome de Villaret e o espaço retroparotídeo / Villaret syndrome and retroparotid space

A partir do relato de um caso sobre a síndrome de Villaret, o autor ressalta a importância da relação anátomo-clínica, aspectos clínicos e etiologias das síndromes que cursam com o comprometimento dos quatro últimos nervos cranianos quando da sua passagem extracranial.

From the case study of a patient with the Villaret syndrome the author emphasizes the importance of the anatomical-clinical relationship, clinical aspects, and etiologies of syndromes that are associated with the impairment of the last four cranial nerves during its out of skull passage.

Brown-vialetto-Van Laere syndrome: Egyptian case report

We report an Egyptian case with Brown-Vialetto-Van Laere syndrome. A five-year-oldgirl with progressive hearing loss was documented by brainstem auditory evoked potentials [BAEP] as sensorineural deafness, bilateral facial palsy and bilateral partial vocal cord paralysis in the paramedian position. There was no evidence of involvement of the upper motor neurons or spinalmotor nerves. There is no similar case in the family

A Brazilian family with Brown-Vialetto-van Laere syndrome with autosomal recessive inheritance

We report the first Brazilian family with Brown-Vialetto-van Laere syndrome. The presence of consanguineous marriages and illness affecting three sisters and one niece support an autosomal recessive transmission. The age at onset of the illness ranged from 12 to 20 years old. The time interval between hearing loss and involvement of other cranial nerves varied from 3 to 12 years. MRI demonstrated bulbar atrophy and also high intensity signal at T2 weighted and fluid attenuated inversion recovery (FLAIR) sequences.

Descrevemos a primeira família brasileira com síndrome de Brown-Vialetto-van Laere. Os pacientes são três irmãs e uma sobrinha provenientes de casamentos consangüíneos, o que fortalece a hipótese de transmissão autossômica recessiva. A idade de aparecimento dos sintomas variou entre 12 e 20 anos. A latência entre a perda auditiva e o envolvimento de outros nervos cranianos variou de 3 a 12 anos. O estudo de imagem por ressonância magnética demonstrou atrofia bulbar além de alteração de sinal nas seqüências ponderadas em T2 e FLAIR (fluid attenuated inversion recovery).

Evaluación fonodeglutoria en pacients con esclerosis lateral amiotrófica / Evaluation of speech and seallowing disorders in patients with amyotrophic lateral sclerosis

En la Esclerosis lateral Amiotrófica (ELA) el treinta por ciento de los pacientes comienza con síntomas bulbares que incluyen disfagia, disartria y alteraciones fonatorias. No es claro si el comporomiso bulbar implica el deterioro simultáneo de las tres funciones o si ellas pueden tener una evolución independiente. Existen escalas para evaluar individualmente esas funciones que son de dificil cuantificación clínica. La detección y la mensura adecuada de sus alteraciones permiten apreciar adecuadamente la discapacidad existente

Progressive bulbur paralysis (Fazio-Londe disease).

Progressive bulbar paralysis of childhood is characterised by progressive paralysis of muscles innervated by cranial nerves. The authors report a case of progressive bulbar paralysis of childhood in a 12-year-old child. Child was admitted with the complaints of drooping of eyelids, difficulty in swallowing and hoarse voice. She had involvement of III, VII, IX, X, XI and XII cranial nerves and the corticospinal tracts. Electromyography revealed spontaneous activity in the form of fasciculations, giant motor unit potential and discrete recruitment of motor neurons suggestive of denervation pattern. Hearing assessment was normal. Muscle biopsy was also suggestive of neurogenic atrophy.

Motor neuron diseases in the University Hospital of Fortaleza (Northeastern Brazil): a clinico-demographic analysis of 87 cases

In this retrospective (1980-1998) study, we have analyzed clinico-demographically, from the records of the University Hospital of Fortaleza (Brazil), a group of 87 patients showing signs and symptoms of motor neuron diseases (MNDs). Their diagnosis was determined clinically and laboratorially. The WFN criteria were used for amyotrophic lateral sclerosis (ALS) diagnosis. The clinico-demographic analysis of the 87 cases of MNDs showed that 4 were diagnosed as spinal muscular atrophy (SMA), 5 cases as ALS subsets: 2 as progressive bulbar paralysis (PBP), 2 as progressive muscular atrophy (PMA) and 1 as monomelic amyotrophy (MA), and 78 cases of ALS. The latter comprised 51 males and 27 females, with a mean age of 42.02 years. They were sub-divided into 4 groups according to age: from 15 to 29 years (n= 17), 30 to 39 years (n= 18), 40 to 69 years (n= 39) and 70 to 78 years (n= 4). From the 78 ALS patients, 76 were of the classic sporadic form whilst only 2 were of the familial form. The analysis of the 87 patients with MNDs from the University Hospital of Fortaleza showed a predominance of ALS patients, with a high number of cases of juvenile and early onset adult sporadic ALS

unusual association between oral sarcoma and bulbar palsy

A 90 year old male presented with symptoms and signs of right lower cranial nerves palsy. A small mass was found on the right side at the back of his mouth. Light microscopy and histoimmunochemical studies of the biopsy of the mass showed an alveolar soft part sarcoma arising from the right myohyoid muscle. The unusual location and presentation of this rare tumor is discussed

Elementary motor perseveration in early diagnosis of progressive supranuclear palsy

Em três casos de paralisia supranuclear progressiva (PSP) com diferentes manifestaçöes clínicas iniciais foram constatadas intensas perseveraçöes motoras elementares antes do aparecimento dos sinais neurológicos característicos da doença. Na perseveraçäo motora elementar, após o início de um elemento de movimento näo há inibiçäo no momento adequado, ocorrendo tendência à repetiçäo incessante. As perseveraçöes foram observadas nestes casos aos testes da diadococinesia, da capacidade de reproduçäo de estruturas rítmicas e às tentativas de desenhar formas geométricas simples. Embora este sinal ainda näo tenha sido descrito na PSP, é possível que sua pesquisa sistemática possa demonstrar que a perseveraçäo motora elementar seja sinal útil para o diagnóstico precoce e um elemento semiótico para a caracterizaçäo clínica da PSP

Paralisia bulbar: a propósito de dois casos da forma de Van Laere / Bulbar paralysis: apropos of 2 cases of Van Laere variant

Faz-se a análise clínica, histopatológica e eletromiográfica de dois casos de paralisisa bulbar progressiva da infância a adolescência com surdez (forma de Van Laere). Os autores tecem consideraçöes sobre a disposiçäo nosológica desta afecçäo, fazendo parte da esclerose lateral amiotrófica ou sendo uma variante de síndrome de Fazio-Londe, que merece melhor entendimento em estudo futuros