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High frequency oscillation for respiratory failure unresponsive to the current respiratory management Shuji Seki 1 1Division of Emergency, Okayama Univ., Medical School pp.165-169
Published Date 1984/2/15
DOI https://doi.org/10.11477/mf.1404204392
  • Abstract
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High frequency oscillation (HFO) was employed in 5 patients who had been suffered from acute respiratory failure and were unresponsive to the current management for respiratory failure. The failure was improved remarkably in one patients with pulmonary and 80% surface burn, and remit-ted in three patients. In the latter three two were post-operative failure and the one was pneumonia. HFO was used either alone or by superimposing on the controlled respiration. Oscillation ranged from 3 to 14 Hz with a range of driving pressure from 0.3 to 2.0 kg/cm2. The following results were obtained:

1) There was no optimal setting of HFO, frequency and driving pressure, to obtain the im-provement of the failure. Namely, the current hy-pothesis that greater the frequency better the oxy-genation and reverse for CO2 elimination was not confirmed in the patients with respiratory failure.

2) Several hours were necessary to obtain an improvement in the failed lung.

3) HFO should be initiated as early as possible.


Copyright © 1984, Igaku-Shoin Ltd. All rights reserved.

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