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High frequency oscillatory ventilation (HFOV) is a new mode of mechanical ventilation which by safer use of mean airway pressure higher than that used during conventional ventilation (CV) is better lung safety strategy in respiratory failure. Aims and Objectives: To study the role of high frequency oscillatory ventilation at a tertiary NICU as rescue mode in neonates with severe respiratory failure. Materials and Methods: 31 neonates admitted in NICU failing conventional mode of ventilation were studied prospectively from January 2014 to September 2015. Babies with respiratory failure failing conventional mode of ventilation were shifted to HFOV. On HFOV, babies were initially started on mean airway pressure 2 cm higher than on conventional ventilation and increased until a saturation of >95% is achieved. Neonates were again weaned off to CV, when target goals of oxygenation and ventilation were reached. Improvements were assessed periodically by arterial blood gas analysis (ABG) and other parameters. Results: 31 neonates were shifted to HFOV as rescue therapy and primary outcome was improvement in oxygenation index and alveolar arterial oxygen radiant (A-aDO2) which were compared and also showed significant impact on secondary outcome of survival. Majority of neonates with primary diagnosis as meconium aspiration syndrome, congenital pneumonia showed 100% recovery. PPHN babies had 78% recovery, while babies with pulmonary haemorrhage had poor outcome. There was statistically significant improvement in oxygenation index and A-aDO2 in 15 babies after shifting to HFOV. Thus, the study shows that HFOV can be used as rescue therapy for neonates after failing conventional ventilation.

pediatric review: international journal of pediatrics research

Role of High frequency oscillatory mode of ventilation (HFOV) as a rescue treatment in newborns with impending respiratory failure after failed conventional mode of ventilation