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Recent advances in paediatric ventilation
1Paediatric Intensive Care Unit, Royal Children's Hospital, Victoria.
Insights
New ventilatory therapies like high-frequency oscillation, extracorporeal membrane oxygenation, nitric oxide, and liquid ventilation show promise for improving outcomes in pediatric acute respiratory failure.
Area of Science:
- Pediatric Critical Care Medicine
- Respiratory Physiology
- Neonatology
Background:
- Acute respiratory failure (ARF) in children presents a significant clinical challenge.
- Conventional mechanical ventilation has not improved survival rates for pediatric ARF.
- Advances in ventilatory support are crucial for improving outcomes.
Purpose of the Study:
- To review recent advancements in ventilatory therapies for pediatric acute respiratory failure.
- To evaluate the efficacy and application of novel ventilation strategies.
Main Methods:
- Systematic review of peer-reviewed literature on mechanical ventilation for pediatric ARF.
- Analysis of studies focusing on advanced ventilatory techniques.
Main Results:
- Conventional mechanical ventilation shows limited impact on pediatric ARF survival.
- High-frequency ventilation (HFV), extracorporeal membrane oxygenation (ECMO), inhaled nitric oxide (iNO), and liquid ventilation (LV) demonstrate improved outcomes.
- Specific benefits include HFV for refractory ARF, ECMO reducing neonatal mortality, iNO improving oxygenation in congenital heart disease, and LV showing promise.
Conclusions:
- High-frequency oscillation is beneficial for ARF refractory to conventional ventilation.
- ECMO has significantly reduced mortality in neonatal ARF and is effective in older children.
- Inhaled nitric oxide (6-20 ppm) improves oxygenation in pediatric ARF with congenital heart disease and pulmonary hypertension.
- Partial liquid ventilation shows promise for treating pediatric ARF.
Background:
To review the recent advances in ventilatory therapy for acute respiratory failure in children.
Data Sources:
Recent published peer-review articles on mechanical ventilation for acute respiratory failure in children.
Summary Of Review:
Advances in conventional treatment for acute respiratory failure (e.g. mechanical ventilation) have not increased survival in children. However, recent therapies including high frequency ventilation, extracorporeal membrane oxygenation, nitric oxide and liquid ventilation have reported improved outcomes. The rationale and use of each are presented.
Conclusions:
High frequency ventilation exists in three forms, although only high frequency oscillation appears to show any benefit in the management of acute respiratory failure refractory to conventional mechanical ventilation. Extracorporeal oxygenation has halved mortality in neonates with acute respiratory failure, and has been used successfully in non-neonate patients. Inhaled nitric oxide from 6 to 20 parts per million improves oxygenation in paediatric patients with acute respiratory failure and congenital heart disease (particularly in the presence of pulmonary arterial hypertension). Liquid ventilation or perfluorocarbon-associated gas exchange has also been used to treat acute respiratory failure in paediatric patients, with partial liquid ventilation particularly appearing to show promise.
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