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Title: Effects of Surfactant Lavage Combined With Intratracheal Budesonide Instillation on Meconium-Injured Piglet Lungs. Author: Lin CH, Jeng MJ, Kuo BI, Kou YR. Journal: Pediatr Crit Care Med; 2016 Jun; 17(6):e287-95. PubMed ID: 27124561. Abstract: OBJECTIVES: To evaluate the combined effects of surfactant lavage and intratracheally instillation of budesonide on meconium-injured piglet lungs. DESIGN: A prospective, randomized, animal model study. SETTING: An experimental laboratory. SUBJECTS: Twenty-four anesthetized and mechanically ventilated newborn piglets. INTERVENTIONS: Human meconium slurry was intratracheally instilled into piglet lungs to induce lung injury. The injured piglets were randomly assigned to either the sham treatment group (control) or one of the three therapeutic groups: the intratracheally instilled budesonide (Bud) group, the bronchoalveolar lavage with diluted surfactant (dsBAL) group, and the combination therapy of Bud and dsBAL (dsBAL + Bud) group. MEASUREMENTS AND MAIN RESULTS: Cardiopulmonary profiles were measured hourly. Proinflammatory cytokine (interleukin-1β, interleukin-6, and interleukin-8) levels in bronchoalveolar lavage fluid were measured. Finally, the pulmonary histology of the experimental subjects was examined at the end of experiments. Both of the lavaged groups (dsBAL and dsBAL + Bud) showed significantly better oxygenation than those that had not undergone lavage (control and Bud) (p < 0.05). The dsBAL + Bud group showed a significantly higher lung compliance and required a significantly lower peak inspiratory pressure during the experimental periods than the other three groups (p < 0.05). All treatment groups had significantly lower concentrations of interleukin-1β concentration in the bronchoalveolar lavage fluid than the control group (p < 0.05). The dsBAL + Bud group also had a significantly lower interleukin-6 concentration in the bronchoalveolar lavage fluid (p< 0.05), as well as a significantly lower lung injury score based on pulmonary histology than the control group (p < 0.05). CONCLUSIONS: Therapeutic bronchoalveolar lavage with diluted surfactant followed by intratracheal instillation of budesonide has a synergistic and beneficial effect when treating severe meconium-injured newborn piglet lungs.[Abstract] [Full Text] [Related] [New Search]