Association between ventilatory settings and pneumothorax in extremely preterm neonates.
Felipe Y Matsushita1, Vera L J Krebs1, Werther B de Carvalho1
1Departamento de Pediatria, Divisao de Neonatologia, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, BR.
Clinics (Sao Paulo, Brazil)
|March 31, 2021
Summary
Ventilator settings like PEEP, PIP, and DP did not increase pneumothorax risk in extremely low birth weight neonates. This finding is crucial for neonatal intensive care unit (NICU) management of premature infants.
Area of Science:
- Neonatal Medicine
- Pediatric Critical Care
- Respiratory Physiology
Background:
- Pneumothorax is a serious complication in neonates, particularly those with extremely low birth weight (ELBW).
- Understanding risk factors for pneumothorax is vital for improving outcomes in vulnerable infants.
Purpose of the Study:
- To investigate the association between specific ventilatory parameters and the risk of pneumothorax in ELBW neonates.
- To determine if positive end-expiratory pressure (PEEP), peak inspiratory pressure (PIP), and driving pressure (DP) influence pneumothorax development.
Main Methods:
- A retrospective cohort study of 257 ELBW neonates in a NICU from 2012-2017.
- Compared highest PEEP, PIP, and DP values within the first 7 days of life between neonates with and without pneumothorax requiring chest drainage.
- Used a matched control group to adjust for confounding factors like CRIB II score, birth weight, and gestational age.
Main Results:
- No statistically significant difference was found in PEEP, PIP, or DP values between neonates who developed pneumothorax and those who did not.
- These findings remained consistent even after adjusting for potential confounding variables.
Conclusions:
- Pressure-related ventilatory settings (PEEP, PIP, DP) in the first 7 days of life are not associated with an increased risk of pneumothorax in mechanically ventilated ELBW neonates.
- This suggests that other factors may play a more significant role in the development of pneumothorax in this population.
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