Clinical features and outcome of children and adolescents hospitalized with influenza A (H1N1) virus infection compared with flu-like symptoms and negative rapid tests for influenza A (H1N1) admitted in the same period of time.

This report describes the clinical features and outcome of 61 pediatric hospitalized patients with influenza-like infection. Fever, cough and respiratory distress were the most common symptoms of the infection. Fifteen patients presented positive RT-PCR results for influenza A (H1N1). The group with positive results was compared with the negative one. The main significant difference was antibiotic usage and the need of mechanical ventilation in the patients with H1N1-virus infection. Among the 11 patients who required intensive care due to respiratory failure, 3 from the positive group died and none from the negative group.

Factors associated with infant death after apparent life-threatening event (ALTE).

OBJECTIVE: To detect factors associated with greater risk of death in infants after an apparent life-threatening event (ALTE). METHODS: This cross-sectional, retrospective, descriptive and analytic study evaluated infants younger than 12 months who had a sudden event of cyanosis, pallor, hypotonia or apnea and were seen in the emergency department of a tertiary university hospital. Forward stepwise logistic regression (Wald) was used to calculate and adjust odds ratios to evaluate associations. RESULTS: Mean age of the 145 patients included in the study was 105 days (median = 65 days). Eleven (7.6%) died, and their mean age was 189 days (median = 218 days). Mean age of survivors was 98 days (median = 62 days) (p = 0.003). Activity before the event, prematurity and number of events were not associated with death. A significant association was found with pallor. Of the 11 infants, 3 had spontaneous resolution of ALTE, whereas 8 patients [27.6%; p < 0.001; OR = 14.3 (95%CI 3.51-58.3)] did not. The associations with respiratory or cardiovascular disease were also significant. In multivariate analysis, immediate spontaneous resolution [p = 0.015; OR = 6.06 (95%CI 1.02-35.94)] and diagnosis of cardiovascular disease [p = 0.047; OR = 164.27 (95%CI 7.34-3.673.78)] remained statistically significant. CONCLUSION: Infants who experienced an ALTE had a higher risk of subsequent death when their age was greater than 6 months and the event had a long duration, particularly when ALTE was associated with cardiovascular disease.

Fatores associados ao óbito em lactentes após eventos com aparente risco de morte (apparent life-threatening event, ALTE) / Factors associated with infant death after apparent life-threatening event (ALTE)

OBJETIVO: Identificar, na admissão dos lactentes com após eventos com aparente risco de morte (apparent life-threatening event, ALTE), fatores que possam indicar maior risco de evolução para o óbito. MÉTODOS: Estudo transversal retrospectivo, descritivo e analítico com lactentes menores de 12 meses, com evento súbito de cianose, palidez, hipotonia e/ou apneia, atendidos na unidade de emergência de hospital universitário de nível terciário. Para avaliação da associação, determinaram-se os valores de odds ratio bruto e ajustado por regressão logística (método stepwise forward Wald). RESULTADOS: Foram avaliados 145 pacientes com idade média de 105 dias (mediana = 65 dias). Onze (7,6 por cento) evoluíram para óbito, com idade média de 189 dias (mediana = 218 dias), enquanto que a idade média dos sobreviventes foi de 98 dias (mediana = 62 dias) (p = 0,003). Atividades que precederam o evento, antecedente de prematuridade e número de episódios não apresentaram associação com o óbito. Apresentou relação significativa o relato de palidez pelos observadores. Entre os 11 lactentes, 3 apresentaram melhora imediata e espontânea; já 8 pacientes [27,6 por cento; p < 0,001; OR = 14,3 (IC95 por cento 3,51-58,3)] não tiveram melhora espontânea. Os diagnósticos de doença do trato respiratório e do sistema cardiocirculatório também foram significantes. Na análise multivariada, mostraram significância estatística: não melhora imediata e espontânea [p = 0,015; OR = 6,06 (IC95 por cento 1,02-35,94)] e diagnóstico de doença do sistema cardiocirculatório [p = 0,047; OR = 164,27 (IC95 por cento 7,34-3.673,78)]. CONCLUSÃO: Os lactentes que apresentaram ALTE tiveram maior risco de óbito quando presentes na faixa etária acima dos 6 meses e quando os eventos tiveram duração prolongada, principalmente quando ocorreram como manifestação de doenças do sistema cardiocirculatório.

OBJECTIVE: To detect factors associated with greater risk of death in infants after an apparent life-threatening event (ALTE). METHODS: This cross-sectional, retrospective, descriptive and analytic study evaluated infants younger than 12 months who had a sudden event of cyanosis, pallor, hypotonia or apnea and were seen in the emergency department of a tertiary university hospital. Forward stepwise logistic regression (Wald) was used to calculate and adjust odds ratios to evaluate associations. RESULTS: Mean age of the 145 patients included in the study was 105 days (median = 65 days). Eleven (7.6 percent) died, and their mean age was 189 days (median = 218 days). Mean age of survivors was 98 days (median = 62 days) (p = 0.003). Activity before the event, prematurity and number of events were not associated with death. A significant association was found with pallor. Of the 11 infants, 3 had spontaneous resolution of ALTE, whereas 8 patients [27.6 percent; p < 0.001; OR = 14.3 (95 percentCI 3.51-58.3)] did not. The associations with respiratory or cardiovascular disease were also significant. In multivariate analysis, immediate spontaneous resolution [p = 0.015; OR = 6.06 (95 percentCI 1.02-35.94)] and diagnosis of cardiovascular disease [p = 0.047; OR = 164.27 (95 percentCI 7.34-3.673.78)] remained statistically significant. CONCLUSION: Infants who experienced an ALTE had a higher risk of subsequent death when their age was greater than 6 months and the event had a long duration, particularly when ALTE was associated with cardiovascular disease.