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Updated: Apr 15, 2026

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
Published on: February 9, 2022
A Perioperative Evaluation of Respiratory Mechanics Using the Forced Oscillation Technique
Yosuke Kuzukawa1, Junko Nakahira, Toshiyuki Sawai
1From the Department of Anesthesiology, Osaka Medical College, Osaka, Japan.
Background:
The forced oscillation technique is a new approach for assessing perioperative respiratory function.
Methods:
This 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.
Results:
Respiratory 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.
Conclusions:
The 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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