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Published on: August 15, 2018
Respiratory Support Strategies for Surgical Neonates: A Review
Piero Alberti1, Niyi Ade-Ajayi1,2, Anne Greenough1
1Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London SE5 9RS, UK.
Insights
Neonates with surgical conditions often face respiratory distress. This review covers respiratory support for oesophageal atresia-tracheoesophageal fistula, congenital diaphragmatic hernia, congenital lung malformations, and abdominal wall defects, focusing on ventilation strategies.
Area of Science:
- Neonatal surgery
- Pediatric respiratory medicine
- Critical care
Background:
- Congenital conditions requiring surgery frequently cause respiratory distress in neonates.
- Pulmonary complications and respiratory support are critical in managing these infants.
Purpose of the Study:
- To review management of pulmonary complications and respiratory support strategies for four neonatal surgical conditions.
- To discuss mechanical ventilation and non-invasive support modes to reduce ventilator-induced lung injury.
Main Methods:
- Review of current literature on respiratory support for neonatal surgical conditions.
- Discussion of mechanical ventilation techniques, including lung-protective settings and high-frequency ventilation.
- Emphasis on echocardiographic assessment for pulmonary hypertension in congenital diaphragmatic hernia.
Main Results:
- Advances improve outcomes for oesophageal atresia-tracheoesophageal fistula, but premature infants remain challenged.
- Conventional ventilation may be superior to high-frequency ventilation in congenital diaphragmatic hernia.
- Lung-protective ventilation may reduce complications in congenital lung malformations; management debate exists for asymptomatic cases.
- Long-term respiratory effects of pulmonary hypoplasia in anterior abdominal wall defects are unclear.
Conclusions:
- Optimal respiratory support strategies for neonatal surgical conditions affecting lung function require further definition.
- Prospective multi-center studies are needed as surgical and ventilation techniques evolve.
Abstract:
Neonates with congenital conditions which require surgical management frequently experience respiratory distress. This review discusses the management of pulmonary complications and the respiratory support strategies for four conditions: oesophageal atresia-tracheoesophageal fistula (OA-TOF), congenital diaphragmatic hernia (CDH), congenital lung malformations (CLM), and anterior abdominal wall defects (AWD). Mechanical ventilation techniques which can reduce the risk of ventilator-induced lung injury (VILI) are discussed, as well as the use of non-invasive respiratory support modes. While advances in perioperative respiratory support have improved outcomes in infants with OA-TOF, managing respiratory distress in premature OA-TOF neonates remains a challenge. In CDH infants, a randomised trial has suggested that conventional ventilation may improve outcomes compared to high-frequency ventilation. Echocardiographic assessment is essential in the management of CDH infants with pulmonary hypertension. Lung-protective ventilation settings may lower the rate of postoperative complications in symptomatic CLM infants, but there remains debate regarding the choice of expectant versus surgical management in neonates with asymptomatic CLMs. Infants with AWDs can require ventilation due to pulmonary hypoplasia, but the effects of this on their long-term respiratory health are poorly understood. As surgical techniques continue to evolve and novel ventilation techniques become available, prospective multi-centre studies will be required to define the optimal respiratory support strategies for neonatal surgical conditions that affect lung function.
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