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High-frequency oscillatory ventilation versus synchronized intermittent mandatory ventilation plus pressure support

Huiqing Sun1, Rui Cheng, Wengqing Kang

  • 1Department of Pediatrics, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.

Respiratory Care
|June 15, 2013
PubMed

Insights

High-frequency oscillatory ventilation (HFOV) significantly reduced death and bronchopulmonary dysplasia (BPD) in preterm infants with severe respiratory distress syndrome (RDS). HFOV also improved long-term neurodevelopmental outcomes compared to synchronized intermittent mandatory ventilation plus pressure support ventilation (SIMV-PSV).

Area of Science:

  • Neonatal Medicine
  • Pediatric Critical Care
  • Respiratory Physiology

Background:

  • Mechanical ventilation and surfactant therapy are standard for preterm respiratory distress syndrome (RDS).
  • The impact of ventilation strategies on bronchopulmonary dysplasia (BPD) and neurodevelopment is debated.
  • This study compares high-frequency oscillatory ventilation (HFOV) with synchronized intermittent mandatory ventilation plus pressure support ventilation (SIMV-PSV) in severe RDS.

Purpose of the Study:

  • To compare the efficacy and safety of HFOV versus SIMV-PSV in preterm infants with severe RDS.
  • To evaluate the effects of ventilation strategy on mortality, BPD, and neurodevelopmental outcomes.
  • To assess secondary outcomes including hospitalization duration and specific morbidities.

Main Methods:

  • Randomized controlled trial involving 366 preterm infants with severe RDS.
  • Infants were assigned to HFOV (n=184) or SIMV-PSV (n=182).
  • Surfactant was administered if PaO2/FIO2 < 200 mm Hg after 2 hours; primary outcomes were mortality or BPD.

Main Results:

  • The incidence of death or BPD was significantly lower with HFOV (P=.001).
  • HFOV group showed shorter ventilation/hospitalization duration and reduced surfactant needs (P<.001).
  • Fewer infants in the HFOV group experienced moderate/severe neurological disability at 18 months (P=.03).

Conclusions:

  • Initial HFOV in preterm infants with severe RDS decreases mortality and BPD incidence.
  • HFOV improves long-term neurodevelopmental outcomes compared to SIMV-PSV.
  • The combination of HFOV and surfactant effectively reduces adverse outcomes in this population.
Abstract

Keywords:
high-frequency oscillatory ventilationneurodevelopmentpreterm infantsrespiratory distress syndrome

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