alexa Minimally-invasive surfactant therapy in preterm infants on continuous positive airway pressure.


Journal of Pulmonary & Respiratory Medicine

Author(s): Dargaville PA, Aiyappan A, De Paoli AG, Kuschel CA, Kamlin CO,

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Abstract OBJECTIVE: To evaluate the applicability and potential effectiveness of a technique of minimally-invasive surfactant therapy (MIST) in preterm infants on continuous positive airway pressure (CPAP). METHODS: An open feasibility study of MIST was conducted at two sites. Infants were eligible for MIST if needing CPAP pressure ≥7 cm H(2)O and FiO(2) ≥0.3 (25-28 weeks gestation, n=38) or ≥0.35 (29-32 weeks, n=23). Without premedication, a narrow-bore catheter was inserted through the vocal cords under direct vision. Surfactant (100 or 200 mg/kg Curosurf) was then instilled, followed by reinstitution of CPAP. Outcomes were compared between surfactant-treated infants and historical controls achieving the same CPAP and FiO(2) thresholds. RESULTS: Surfactant was successfully administered via MIST in all cases, with a rapid and sustained reduction in FiO(2) thereafter. For infants at 25-28 weeks gestation, need for intubation <72 h was diminished after MIST compared with controls (32\% vs 68\%; OR 0.21, 95\% CI 0.083 to 0.55), with a similar trend at 29-32 weeks (22\% vs 45\%; OR 0.34, 95\% CI 0.11 to 1.1). Duration of ventilation and incidence of bronchopulmonary dysplasia were similar, but infants receiving MIST had a shorter duration of oxygen therapy. CONCLUSION: Surfactant delivery via a narrow-bore tracheal catheter is feasible and potentially effective, and deserves further investigation in clinical trials. This article was published in Arch Dis Child Fetal Neonatal Ed and referenced in Journal of Pulmonary & Respiratory Medicine

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