N/A
Completed N=40
Pre-Oxygenation Techniques in Pregnancy
Preoxygenation
Source: ClinicalTrials.gov NCT03310723 ↗
Enrolled (actual)
40
Serious AEs
0.0%
Results posted
Sep 2020
Primary outcomePrimary: End Tidal Oxygen Concentration (ETO2) Following Tidal Volume Breathing Using Either Face Mask or OptiFlow — 91.0; 87.4 Percentage units of end-tidal oxygen
Summary
A trial comparing outcomes of two pre-oxygenation techniques in obstetric patients.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY End Tidal Oxygen Concentration (ETO2) Following Tidal Volume Breathing Using Either Face Mask or OptiFlow |
91.0; 87.4 | — |
| SECONDARY End Tidal Oxygen Concentration (ETO2) Following Vital Capacity Breaths Using Either Face Mask or OptiFlow |
91.8; 85.9 | — |
Eligibility Criteria
Inclusion Criteria
- Healthy (American Society of Anesthesiologists class 1 or 2), pregnant patients ≥36 weeks gestation scheduled for elective Cesarean delivery under neuraxial anesthesia.
Exclusion Criteria
- Comorbidities likely to alter outcome of respiration and gas exchange.
- Patients only able to breathe through their mouth.
- Patients who are in active labour.
- Patients unable to tolerate a face mask being held over their mouth and nose.
- Patients with a Body Mass Index ≥40kg/m2.
- Patients who are unable to give informed consent.
Data sourced from ClinicalTrials.gov (NCT03310723). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.