• Can J Anaesth · Jul 2023

    Randomized Controlled Trial

    A randomized controlled trial of the intraoperative use of noninvasive ventilation versus supplemental oxygen by face mask for procedural sedation in an electrophysiology laboratory.

    • Pierre-Henri Moury, Valentin Pasquier, Flora Greco, Jean-Lionel Arvieux, Silvia Alves-Macedo, Marion Richard, Myriam Casez-Brasseur, Kristina Skaare, Peggy Jacon, Michel Durand, Damien Bedague, Samir Jaber, Jean-Luc Bosson, and Pierre Albaladejo.
    • HP2 Laboratory, U1042, Grenoble Alpes University, Grenoble, France. PHMoury@chu-grenoble.fr.
    • Can J Anaesth. 2023 Jul 1; 70 (7): 118211931182-1193.

    PurposeThe efficacy of noninvasive ventilation (NIV) during procedures that require sedation and analgesia has not been established. We evaluated whether NIV reduces the incidence of respiratory events.MethodsIn this randomized controlled trial, we included 195 patients with an American Society of Anesthesiologists Physical Status of III or IV during electrophysiology laboratory procedures. We compared NIV with face mask oxygen therapy for patients under sedation. The primary outcome was the incidence of respiratory events determined by a computer-driven blinded analysis and defined by hypoxemia (peripheral oxygen saturation < 90%) or apnea/hypopnea (absence of breathing for 20 sec on capnography). Secondary outcomes included hemodynamic variables, sedation, patient safety (composite scores of major or minor adverse events), and adverse outcomes at day 7.ResultsA respiratory event occurred in 89/98 (95%) patients in the NIV group and in 69/97 (73%) patients with face masks (risk ratio [RR], 1.29; 95% confidence interval [CI], 1.13 to 1.47; P < 0.001). Hypoxemia occurred in 40 (42%) patients in the NIV group and in 33 (34%) patients with face masks (RR, 1.21; 95% CI, 0.84 to 1.74; P = 0.30). Apnea/hypopnea occurred in 83 patients (92%) in the NIV group vs 65 patients (70%) with face masks (RR, 1.32; 95% CI, 1.14 to 1.53; P < 0.001). Hemodynamic variables, sedation, major or minor safety events, and patient outcomes were not different between the groups.ConclusionsRespiratory events were more frequent among patients receiving NIV without any safety or outcome impairment. These results do not support the routine use of NIV intraoperatively.Study RegistrationClinicalTrials.gov (NCT02779998); registered 4 November 2015.© 2023. Canadian Anesthesiologists' Society.

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