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Most studies focusing on respiratory infections in immunocompromised children have been addressed to bacterial etiology. However, respiratory virus infections in this population can also lead to severe disease. The objective of this study is to evaluate the clinical significance of respiratory virus infections in children with cancer or human immunodeficiency virus (HIV) infection. Retrospective study conducted in a teaching hospital in Madrid. Medical records from children

Objective. To determine the epidemiology and therapeutic management of patients with severe acute bronchiolitis (AB) admitted to paediatric intensive care units (PICUs) in Spain. Design. Descriptive, prospective, multicentre study. Setting. Sixteen Spanish PICUs. Patients. Patients with severe AB who required admission to any of the participating PICUs over 1 year. Interventions. Both epidemiological variables and medical treatment received were recorded. Results. A total of 262 patients were recruited; 143 were male (54.6%), with median age of 1 month (0–23). Median stay in the PICU was 7 days (1–46). Sixty patients (23%) received no nebuliser treatment, while the rest received a combination of inhalation therapies. One-quarter of patients (24.8%) received corticosteroids and 56.5% antibiotic therapy. High-flow oxygen therapy was used in 14.3% and noninvasive ventilation (NIV) was used in 75.6%. Endotracheal intubation was required in 24.4% of patients. Younger age, antibiotic therapy, and invasive mechanical ventilation (IMV) were risk factors that significantly increased the stay in the PICU. Conclusions. Spanish PICUs continue to routinely use nebulised bronchodilator treatment and corticosteroid therapy. Despite NIV being widely used in this condition, intubation was required in one-quarter of cases. Younger age, antibiotic therapy, and IMV were associated with a longer stay in the PICU.

Objectives: Increasing evidence supports the association of fluid overload with adverse outcomes in different diseases. To our knowledge, few studies have examined the impact of fluid balance on clinical outcome in severe bronchiolitis. Our aim was to determine whether fluid overload was associated with adverse clinical outcomes in critically ill children with severe bronchiolitis. Design: Descriptive, prospective, multicenter study. Setting: Sixteen Spanish PICUs. Patients: Severe acute bronchiolitis who required admission from October 2014 to May 2015 were included. Interventions: None. Measurements and Main Results: Total fluid intake and output were prospectively recorded during PICU assistance. Fluid balance was measured at 24, 48, and 72 hours after PICU admission. A total of 262 patients were enrolled; 54.6% were male. Median age was 1 month (interquartile range, 1–3 mo). Patients had a positive fluid balance during the first 4 days of PICU admission, reaching a neutral balance on day 4. A positive balance at 24 hours in patients admitted to the PICU with severe bronchiolitis was related with longer stay in PICU (p < 0.001), longer hospital stay (p < 0.001), longer duration of mechanical ventilation (p = 0.016), and longer duration of noninvasive ventilation (p = 0.0029). Conclusions: Critically ill patients with severe acute bronchiolitis who present a positive balance in the first 24 hours of PICU admission have poorer clinical outcomes with longer PICU and hospital length of stay and duration of invasive and noninvasive mechanical ventilation.

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