Melioidosis, an infection caused by Burkholderia pseudomallei, can present as severe septicemia or localized infection. Data on optimum antibiotic treatment regimen for localized melioidosis in children is limited. This is a report on localized melioidosis in children, regarding clinical presentation, treatment and the long-term outcomes. We reviewed 37 cases of localized melioidosis in children treated between 1994 and 2006 and followed up them prospectively until 1 October 2007. The two most common presentations were skin/soft tissue infections and suppurative parotitis. Oral eradication antibiotics after initial parenteral therapy included trimetroprim-sulfamethoxazole (10 patients) and trimetroprim-sulfamethoxazole in combination with doxycycline (four patients). Patients who did not get any parenteral antibiotics for B. pseudomallei were treated with oral trimetroprim-sulfamethoxazole (10 patients) and trimetroprim-sulfamethoxazole in combination with doxycycline (one patient). No adverse effects were reported. We were able to follow-up 32 patients, all recovered except one patient reported a history of possible relapse.
Rhinovirus ranked second after RSV as the cause of hospitalizations of children with acute bronchiolitis. More than half of these children had recurrent wheezing which mostly disappeared before the age of 6. Nearly half were subsequently diagnosed with asthma at the 5th year of follow-up. The specific pathogens did not account for a statistically significant difference in subsequent wheezing or asthma development.
Controversy over the efficacy of systemic corticosteroids for acute bronchiolitis initiated this study. We conducted a randomized, double-blind, placebo-controlled trial to examine the efficacy of single dexamethasone injection for the treatment of acute bronchiolitis in young hospitalized children. The study, performed at the pediatric wards of a University Hospital and its affiliated hospital in Thailand, included 174 previously healthy children under 2 years of age, hospitalized with acute bronchiolitis. Each child received either a single intramuscular injection of 0.6 mg/kg dexamethasone or a placebo in addition to regular management. The primary outcome was the time from study entry to resolution of respiratory distress, determined by a clinical score derived from the respiratory rate, occurrence of wheezing, chest retraction, and oxygen saturation. Survival analysis using the Kaplan-Meier method and a log-rank test were performed. A single-dose, dexamethasone injection versus placebo produced a significant: (1) decrease in the time needed for resolution of respiratory distress (hazard ratio 1.56; 95% CI, 1.14-2.13; P = 0.005), (2) decrease in the mean duration of symptoms of 11.8 hr (95% CI, 3.9-19.7; P = 0.004), (3) decrease in the mean duration of oxygen therapy of 14.9 hr (95% CI, 5.3-24.4; P = 0.003), and (4) decrease in the mean length of hospital stay of 13.4 hr (95%CI, 2.6-24.2; P = 0.02). In conclusion, a single injection of dexamethasone yielded a significant clinical benefit for the treatment of previously healthy, young children hospitalized with acute bronchiolitis.
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