17 research outputs found
Pulmonary hemorrhage syndrome associated with dengue fever, High-resolution computed tomography findings: a case report
Dengue hemorrhagic fever is an acute infectious disease caused by dengue virus. We described the high-resolution CT findings in a 70-year-old male with the disease, which was diagnosed by clinical examination and confirmed by serological methods. High-resolution CT demonstrated bilateral areas of consolidation with air bronchogram and ground glass opacities, as well as small bilateral pleural effusions. Dengue hemorrhagic fever should be considered in the differential diagnosis of diffuse pulmonary hemorrhage
A New Approach to Dengue Fatal Cases Diagnosis: NS1 Antigen Capture in Tissues
Dengue manifestations may vary from asymptomatic to potentially fatal
complications. With an increasing number of Dengue Hemorrhagic fever (DHF) and
fatal cases, the availability of new approaches useful for cases confirmation
plays an important role for the disease surveillance. The diagnosis of fatal
cases in frozen and fixed tissues from autopsies can be determined by techniques
such as viral RT-PCR, in situ hybridization, viral proteins detection by
immunohistochemistry and NS3 specific immunostaining. We aimed to assess for the
first time the usefulness of NS1 capture tests as a diagnostic technique to
demonstrate DENV antigens in human tissue specimens. The highest sensitivity was
obtained by a rapid ICT which was also the most sensitive in liver, lung,
kidney, brain, spleen and thymus. Despite a number of studies demonstrating the
usefulness of DENV NS1 antigen detection by different ELISAs in plasma and/or
sera of dengue patients, no research has been done previously to demonstrate NS1
presence in tissues of fatal dengue cases. Moreover, the application of NS1 kits
to demonstrate the presence of DENV may provide a better understanding of viral
tropism in fatal cases and may be useful for studies of pathogenesis in vivo and
in experimental animals
Evolução de parâmetros antropométricos em portadores do vÃrus da Imunodeficiência Humana ou com SÃndrome da Imunodeficiência Adquirida: um estudo prospectivo Changes in the anthropometric parameters of patients with the Human Immunodeficiency virus or Acquired Immunodeficiency Syndrome: a prospective study
OBJETIVO: Avaliar o estado nutricional e a evolução de parâmetros antropométricos para alterações morfológicas em pacientes vivendo com o vÃrus da Imunodeficiência Humana ou com SÃndrome da Imunodeficiência Adquirida em uso de terapia antirretroviral de alta atividade. MÉTODOS: Trata-se de estudo de coorte prospectiva com duração de 12 meses, envolvendo indivÃduos adultos, de ambos os sexos, em terapia antirretroviral recém introduzida. Os indicadores antropométricos estudados foram Ãndice de massa corporal, circunferência de cintura, dobras cutâneas subescapular, biciptal e triciptal, avaliados com intervalos de três meses, totalizando 4 medidas do tempo. Variáveis foram descritas segundo mediana e percentis 25 e 75 e analisadas por ANOVA para medidas repetidas. RESULTADOS: A população estudada foi composta por 53 indivÃduos, a maioria do sexo masculino (81%), entre 30 e 39 anos. Apenas a dobra cutânea subescapular apresentou significante variação no tempo (T1=13,7 vs T4=16,0; p<0,001), apontando para lipo-hipertrofia dorso-cervical. CONCLUSÃO: Os achados deste estudo, embora limitados, direcionam para a necessidade de vigilância de parâmetros antropométricos associados a alterações morfológicas, em especial, aqueles usados no diagnóstico de acúmulo de gordura abdominal e dorso-cervical.<br>OBJECTIVE: The objective of this study was to assess the nutritional status and changes in the anthropometric indicators of patients with the human Immunodeficiency virus or acquired immunodeficiency syndrome using the highly active antiretroviral therapy. METHODS: This is a 12-month prospective cohort study of adult males and females who recently started antiretroviral therapy. The anthropometric indicators studied were body mass index, waist circumference and subscapular, biceps and triceps skinfold thicknesses, taken 4 times during the year in 3-month intervals. The variables were described according to medians and 25 and 75 percentiles and analyzed by ANOVA for repeated measurements. RESULTS: The studied population consisted of 53 patients, mostly males (81%) aged 30 to 39 years. Only subscapular skinfold thickness changed significantly over time (T1=13.70 vs T4=16.00, p<0.001), indicating cervical lipohypertrophy (buffalo hump). CONCLUSION: The findings of this study, although limited, show the need to monitor anthropometric parameters associated with morphological changes, especially those used in the diagnosis of abdominal and dorsocervical fat accumulation