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A case of a spontaneous trigemino-pontine pneumocephalus in a 25-year-old man without any known risk factors is described. Other cases of spontaneous pneumocephalus in the literature are briefly reviewed.

RESUMO: O objetivo deste trabalho foi comparar a estimulação elétrica nervosa transcutânea (TENS) e a corrente de alta voltagem (AV ) em indivíduos saudáveis. Para concretizar tal análise, 20 voluntários realizaram as duas modalidades de eletroestimulação de forma cruzada. A nocicepção foi avaliada por meio de estímulos pressóricos e térmicos no membro superior esquerdo, foi aplicada aeletroanalgesia por 20 minutos, sobre a articulação do cotovelo. Os parâmetros da TENS foram: duração de fase de 200 μs e frequência de 100 Hz. Para AV: 50 μse 100 Hz, polo positivo sobre a região do nervo mediano e negativo sobre o ulnar. Os resultados do estudo não mostraram diferenças significativas para limiar de dor e intensidade da dor ao frio. A AV apresentou-se mais agradável e com maior número de acomodações. Desse modo, é possível constatar que os parâmetros utilizados não foram eficazes para alterar a dor em indivíduos saudáveis e a Alta Voltagem teve maior agradabilidade, porém acomodou mais vezes. PALAVRAS-CHAVE: Estimulação elétrica nervosa transcutânea;Medição da dor; Temperatura baixa.ABSTRACT: Current analysis compares transcutaneous electrical nerve stimulation and high voltage (HV ) on healthy subjects. Twenty volunteers experienced the two electro-stimulating modalities. Nociception was evaluated by pressure and thermal stimuli on the upper left limb and electro-analgesia was applied for 20 minutes on the elbow articulation. TENS parameters comprised: phase of 200 μs and frequency of 100 Hz. In the case of HV: 50 μs and 100 Hz, positive pole on the median nerve region and negative pole on the ulnar region. There were no significant paralimiar differences of pain and pain intensity to the cold. HV was more agreeable and with a great number of adaptations. Parameters employed were not efficacious to change pain in healthy subjects; HV had a greater agreeability albeit accommodated several times.KEY WORDS: Nerve transcutaneous electrical stimulation; Low temperature; Measurement of pain. INTRODUÇÃOA dor pode ser definida como uma experiência subjetiva, sensorial e emocional desagradável, associada a uma lesão tecidual real

BACKGROUND AND OBJECTIVES: There is a data gap regarding cold pain and pressure pain in healthy young individuals. The present study aimed to compare cold pain threshold and intensity and pressure threshold in young men and women with different fat percentages. METHODS: The study included 30 men and 42 women aged between 18 and 25 years, divided into two groups: normalbody mass index ≤24.9 and overweight-≥25. Fat percentage was estimated by tetrapolar bioimpedance, pain-pressure threshold by pressure algometer, cold pain threshold was timed, and the intensity measured by the visual analog scale. RESULTS: The intensity of pain caused by cold showed no significant difference between groups, as well as the cold pain threshold and the initial and final pain threshold. The same behavior happened within the men and women groups. When comparing the difference between genders, pressure pain and cold pain thresholds had significant differences. Pain intensity did not differ between genders. CONCLUSION: Fat percentage did not affect the response time of cold pain and pressure pain thresholds and pain intensity in young adults. When considering gender, although the cold pain threshold in men was higher than in women, pain intensity was similar.

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