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New Ventilator Strategies: High-Frequency Oscillatory Ventilation Combined with Volume Guarantee
M Sánchez-Luna1, N González-Pacheco1, J Belik2
1Division of Neonatology, Instituto de Investigación Sanitaria Gregorio Marañón, Complutense University of Madrid, Hospital General Universitario "Gregorio Marañón," Madrid, Spain.
American Journal of Perinatology
|April 26, 2018
Summary
High-frequency oscillatory ventilation with volume guarantee (HFOV-VG) precisely controls tidal volume in infants, reducing lung injury risk. This innovative approach ensures safer mechanical ventilation for vulnerable newborns.
Area of Science:
- Neonatal Medicine
- Pediatric Critical Care
- Respiratory Physiology
Background:
- High-frequency oscillatory ventilation (HFOV) is used in neonates to prevent lung injury.
- Precise control of tidal volume during HFOV is challenging.
- A novel HFOV-volume guarantee (VG) strategy aims to improve tidal volume control.
Purpose of the Study:
- To evaluate the feasibility and efficacy of HFOV-VG in controlling high-frequency tidal volume (VThf).
- To assess the impact of HFOV-VG on lung mechanics and gas exchange in preclinical and clinical settings.
- To determine if HFOV-VG can reduce ventilator-induced lung injury in immature infants.
Main Methods:
- Preclinical studies in neonatal animal models with normal and surfactant-depleted lungs.
- Evaluation of VThf control in varying lung compliance conditions.
- Clinical application in newborn infants undergoing mechanical ventilation.
- Analysis of different inspiratory:expiratory (I:E) ratios and their effect on CO2 washout with and without VG.
Main Results:
- HFOV-VG demonstrated feasibility in directly controlling VThf in both normal and low compliance lung models.
- Different I:E ratios influenced CO2 washout differently with and without the VG modality.
- Clinical use in neonates showed successful application of high frequencies with consistently low VThf.
Conclusions:
- HFOV-VG is a feasible strategy for precise VThf control in neonatal HFOV.
- This technique has the potential to minimize lung trauma associated with mechanical ventilation in vulnerable infants.
- HFOV-VG offers a promising advancement in neonatal respiratory support, enhancing safety and efficacy.
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