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Updated: May 7, 2026

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
Published on: March 6, 2019
Which clinical markers for appropriate timing of surfactant therapy?
Gianluca Lista1, Francesca Castoldi
1NICU - "V.Buzzi" Children's Hospital, ICP.
Insights
Optimal resuscitation for preterm infants with respiratory distress syndrome (RDS) requires careful consideration of surfactant replacement timing. A comprehensive evaluation integrating multiple clinical and physiological factors is essential for effective treatment.
Area of Science:
- Neonatology
- Pediatric Pulmonology
- Critical Care Medicine
Background:
- Respiratory Distress Syndrome (RDS) is a common condition in preterm infants.
- Effective management of RDS involves resuscitation and timely surfactant replacement.
- There is a lack of universal consensus on the optimal timing for surfactant administration in RDS.
Purpose of the Study:
- To highlight the importance of appropriate timing for surfactant replacement in preterm infants with RDS.
- To emphasize the need for a multifactorial approach in evaluating the need for surfactant therapy.
- To discuss the key parameters that should guide clinical decisions regarding surfactant administration.
Main Methods:
- Review of current literature and clinical guidelines on RDS management.
- Analysis of factors influencing the decision for surfactant replacement.
- Discussion of diagnostic criteria and physiological parameters.
Main Results:
- No single factor universally determines the optimal timing of surfactant replacement.
- A combination of antenatal steroid administration, radiological findings, clinical presentation, FiO2 requirements, Oxygen Index (OI), and arterial to alveolar oxygen tension ratio (a/ApO2) should be considered.
- Individualized assessment is crucial for each preterm infant with RDS.
Conclusions:
- A consensus on surfactant replacement timing in RDS is lacking.
- A comprehensive evaluation integrating clinical, radiological, and physiological data is necessary.
- Tailored management strategies improve outcomes for preterm infants with RDS.
Abstract:
Preterm infants with RDS need adequate resuscitation maneuvers and appropriate timing of surfactant replacement but about the latter there is not an universal consensus. A correct evaluation should consider at the same time the administration of antenatal steroids, the radiological criteria, the clinical presentation, the FiO2 level, OI and a/ApO2.
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