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Updated: Oct 8, 2025

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
Published on: February 9, 2022
Assessment of bronchodilator response by forced oscillation technique in a preterm infant with evolving
Camilla Rigotti1, Emanuela Zannin1, Abedulrhman S Abdelfattah1,2
1Neonatal Intensive Care Unit, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Monza, Italy.
Insights
Forced oscillation technique (FOT) can identify preterm infants who may benefit from inhaled bronchodilators for bronchopulmonary dysplasia. This noninvasive method assesses airway obstruction reversibility, guiding optimal treatment timing and patient selection.
Area of Science:
- Neonatal Medicine
- Pediatric Pulmonology
- Respiratory Physiology
Background:
- Bronchopulmonary dysplasia (BPD) is a common complication in preterm infants.
- Inhaled bronchodilators are frequently used, but patient selection and treatment timing remain unclear.
- Assessing airway obstruction reversibility in infants is challenging due to cooperation requirements.
Observation:
- The forced oscillation technique (FOT) is a noninvasive method to assess lung mechanics.
- FOT has demonstrated sensitivity to airway obstruction reversibility in children and adults.
- FOT requires no patient cooperation, making it suitable for infants.
Findings:
- This case report introduces the use of FOT in preterm infants with BPD.
- FOT was utilized to assess airway obstruction reversibility in this population.
- The study suggests FOT can inform clinical benefit from bronchodilator therapy.
Implications:
- FOT shows potential as a valuable tool for guiding bronchodilator treatment in preterm infants with BPD.
- This technique may help personalize treatment decisions, optimizing outcomes.
- Further research is warranted to validate FOT's role in clinical practice.
Abstract:
Inhaled bronchodilators are often given in preterm infants with evolving or established bronchopulmonary dysplasia. However, it is unclear which patients may benefit from it and when it is the best time to start treatment. The forced oscillation technique (FOT) is a noninvasive method for assessing lung mechanics that proved sensitive to airway obstruction reversibility in children and adults. FOT does not need patient cooperation, which is ideal for infants. Bedside tools for applying FOT in infants during spontaneous breathing and different respiratory support modes are becoming available. This case report illustrates for the first time that FOT has potential value in assessing airway obstruction reversibility in preterm infants, informing which infants may manifest a clinical benefit from the treatment with bronchodilators.
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