• Anesthesia and analgesia · Nov 2015

    A Perioperative Evaluation of Respiratory Mechanics Using the Forced Oscillation Technique.

    • Yosuke Kuzukawa, Junko Nakahira, Toshiyuki Sawai, and Toshiaki Minami.
    • From the Department of Anesthesiology, Osaka Medical College, Osaka, Japan.
    • Anesth. Analg. 2015 Nov 1;121(5):1202-6.

    BackgroundThe forced oscillation technique is a new approach for assessing perioperative respiratory function.MethodsThis study enrolled 40 patients undergoing general anesthesia: 20 for ≥2 hours and 20 for <2 hours. Respiratory parameters were measured the day before and after surgery using forced oscillation during normal tidal breathing.ResultsRespiratory resistance at 5 Hz (P = 0.029 with the Student t test with unequal variances and P = 0.033 with analysis of covariance) changed significantly in the patients who underwent procedures for which they were anesthetized for >2 hours.ConclusionsThe forced oscillation technique is a clinical tool that can be used to assess the effects of perioperative ventilation strategies on respiratory mechanics.

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