Cardiothoracic & vascular anesthesia

High-flow nasal oxygen vs. standard oxygen therapy for patients undergoing transcatheter aortic valve replacement with conscious sedation: a randomised controlled trial

Perioper Med (Lond)Published Randomised controlled trial

Authors' conclusion

This study has demonstrated that high flow, compared with standard oxygen therapy, does not improve arterial oxygenation over the course of the procedure.

Study context

Population
Patients undergoing transfemoral TAVI with conscious sedation
Participants
72 patients
Comparison
HFNO vs standard oxygen therapy
Primary endpoint
Change in arterial pO2 during the procedure

Primary result

As reported in the abstract

Change in pO2 from baseline

High-flow

12.10 to 13.69

median · IQR [range] 10.05-15.22 [7.2-29.8] to 10.85-18.38 [8.5-32.3] · kPa

Standard oxygen therapy

15.45 to 14.20

median · IQR [range] 12.17-19.33 [9.2-22.8] to 11.80-19.40 [9.7-35.1] · kPa

Secondary outcomes

OutcomeP value
Percentage change in pO2 · 30 minNot significantly differentP = 0.171
Incidence of oxygen desaturationLower incidence in the high-flow groupP = 0.027
Patient comfort scoreSignificantly higher in the high-flow groupP ≤ 0.001

Original publication

High-flow nasal oxygen vs. standard oxygen therapy for patients undergoing transcatheter aortic valve replacement with conscious sedation: a randomised controlled trial. Perioper Med (Lond). Published 14 April 2023. doi:10.1186/s13741-023-00300-8

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