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Conducting Respiratory Oscillometry in an Outpatient Setting
Published on: April 8, 2022
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Early respiratory system reactance predicts respiratory outcomes in preterm infants: a retrospective, multicentre
Emanuela Zannin1,2, Camilla Rigotti1,2, Sven M Schulzke3
1Neonatal Intensive Care Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy.
The European Respiratory Journal
|July 26, 2024
Summary
Respiratory system reactance (Xrs) measured on day 7 in preterm infants predicts respiratory support duration and bronchopulmonary dysplasia (BPD). This Xrs z-score enhances prediction beyond existing clinical models.
Area of Science:
- Neonatal Medicine
- Pediatric Pulmonology
- Respiratory Physiology
Background:
- Preterm infants (<32 weeks gestational age) face significant respiratory challenges.
- Early identification of respiratory risks is crucial for timely intervention.
- Respiratory system reactance (Xrs) is a potential biomarker for airway function.
Purpose of the Study:
- To investigate the association between respiratory system reactance (Xrs) on day 7 of life and respiratory outcomes in preterm infants.
- To determine if Xrs improves prediction of respiratory support duration and bronchopulmonary dysplasia (BPD).
Main Methods:
- Retrospective study of 137 preterm infants (<32 weeks GA).
- Respiratory system reactance (Xrs) assessed via respiratory oscillometry on day 7.
- Association with respiratory support duration (linear regression) and BPD (logistic regression) analyzed.
- Xrs z-score's added predictive value to clinical factors (GA, BW, NICHD model) evaluated.
Main Results:
- Xrs z-score was significantly associated with respiratory support duration (R²=0.35).
- Higher Xrs z-scores were linked to BPD development (p<0.001), with optimal cut-off at 2.6 (77% sensitivity, 80% specificity).
- Xrs z-score significantly improved prediction of respiratory support duration and BPD development when added to clinical predictors.
Conclusions:
- Respiratory system reactance (Xrs) z-score on day 7 is a valuable predictor of respiratory outcomes in preterm infants.
- Xrs measurement offers an objective method to enhance risk stratification for respiratory complications like BPD.
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