Related Experiment Video
Updated: Jun 8, 2026

Non-Nutritive Suck Parameters Measurements Using a Custom Pressure Transducer System
Published on: April 19, 2024
Randomized, comparative analysis between two tracheal suction systems in neonates
Lúcia Cândida Soares de Paula1, Maria Esther Jurfest Ceccon
1Neonatal Intensive Care Unit, Children’s Institute, Hospital das Clínicas, School of Medicine, Universidade de São Paulo, São Paulo, SP, Brazil
Objective:
To quantify and compare variations in oxygen saturation throughout the suctioning procedure (before, during, and after) using two endotracheal suction systems: open suction system (OSS) vs. closed suction system (CSS).
Methods:
A prospective randomized controlled study was carried out with 39 newborn infants of gestational age ≥ 34 weeks using pressure-limited, time-cycled, continuous-flow mechanical ventilators. The infants were classified into two groups according to ventilatory parameters: Group I was ventilated using positive end-expiratory pressure (PEEP) ≥ 5 cm H2O and mean airway pressure (MAP) ≥ 8 cm H2O; and Group II using PEEP < 5 cm H2O and MAP < 8 cm H2O.
Results:
No statistically significant differences were observed when OSS and CSS were compared in both groups. There was a statistically significant improvement in post-procedure oxygen saturation in both groups.
Conclusion:
Both endotracheal suction systems can be used with no drawbacks of OSS in relation to CSS, provided the sample is similar to that of the present study.
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