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Am J Perinatol 2022; 39(13): 1433-1440
DOI: 10.1055/s-0041-1722953
Original Article

Laryngeal Mask Airway for Surfactant Administration Versus Standard Treatment Methods in Preterm Neonates with Respiratory Distress Syndrome: A Systematic Review and Meta-analysis

Roqaia Ayesh Al Ali
1   Neonatal Division, Maternity and Children Hospital, Ministry of Health, Al-Ahsa, Saudi Arabia
2   Neonatal Division, Department of Pediatrics, Western University, London, Canada
,
Bishal Gautam
2   Neonatal Division, Department of Pediatrics, Western University, London, Canada
3   Neonatal Division, Royal Alexandria Hospital, Edmonton, Canada
,
Michael R. Miller
2   Neonatal Division, Department of Pediatrics, Western University, London, Canada
4   Children's Health Research Institute, Western University, London, Canada
,
Sherry Coulson
4   Children's Health Research Institute, Western University, London, Canada
,
Doris Yuen
2   Neonatal Division, Department of Pediatrics, Western University, London, Canada
› Author Affiliations Funding None.
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Abstract

Objective Laryngeal mask airway (LMA) has emerged as an alternative surfactant delivery method. The effectiveness of this method for the delivery of surfactant is uncertain. A meta-analysis of randomized control trials (RCTs) comparing LMA with standard methods of surfactant delivery for the outcomes of surfactant dose repetition, oxygen requirement, mechanical ventilation, intubation, mortality, bronchopulmonary dysplasia (BPD), and pneumothorax.

Study Design Systematic review and meta-analysis of RCTs. Homogeneity between studies was analyzed by using I2 statistics. Risk ratio or mean difference of outcomes was assessed from random effects models. Subgroup analyses were conducted when necessary. Data sources are as follows: Ovid Medline, Embase, and the Cochrane Central Register of Controlled trials from inception till December 2018, bibliographies of identified reviews and trial registries for ongoing studies. RCTs comparing short-term respiratory outcomes in neonates with respiratory distress syndrome who were administered surfactant through an LMA versus standard method of care.

Results Six RCTs were identified, enrolling a total of 357 infants. Administering surfactant via LMA was associated with decreased FiO2 requirement (mean difference = 1.82 (95% confidence interval [CI]: −6.01–9.66), decreased intubation (risk ratio [RR] = 0.17; 95% CI: 0.05–0.57), and decreased mechanical ventilation (RR = 0.44; 95% CI: 0.31–0.61). There were no significant differences between groups for death, BPD, or pneumothorax.

Conclusion LMA might be an effective alternative method of surfactant delivery; however, further high-quality RCTs with larger sample size and including extreme preterm infants are needed to establish LMA as an alternative technique for surfactant delivery.

Key Points

  • Pulmonary surfactants reduce mortality and pulmonary air leaks in newborns with respiratory distress syndrome.

  • Preterm lungs are at risk of volutrauma by mechanical ventilation; laryngoscopy is still traumatic.

  • Surfactant administration via LMA to avoid mechanical ventilation and intubation might be feasible.

Keywords

surfactant - laryngeal mask airway - preterm - infant - neonatal respiratory - distress syndrome - thin catheter - bronchopulmonary dysplasia

Supplementary Material



Publication History

Received: 01 October 2020

Accepted: 11 December 2020

Article published online:
31 January 2021

© 2021. Thieme. All rights reserved.

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