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Intrapleural cough pressure measured by pulmonary arterial wedge pressure recording in post thoracotomy patients Shirou Yamazaki 1 , Junichi Ogawa 1 , Akira Shohzu 1 , Yohnosuke Yamazaki 2 1Department of Surgery, Tokai University School of Medicine 2Department of Anesthesiology, Tokai University School of Medicine pp.647-652
Published Date 1979/6/15
DOI https://doi.org/10.11477/mf.1404203385
  • Abstract
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We measured intrapleural pressure and pulmo-nary arterial wedge pressure simultaneously during quiet breathing and coughing in 10 post-thoracotomy patients using a balloon-tipped catheter in the pleural space of thoracotomy side and a Swan-Ganz flow-directed catheter in the ipsilateral or contralateral pulmonary artery.

It was found that the pulmonary arterial wedge pressure during quiet breathing and coughing reflects closely the intrapleural pressure, and that the peak value of the pulmonary arterial wedge pressure at coughing reduced by the mean wedge pressure value during quiet breathing represents the intrapleural peak pressure. Therefore we feel that the pulmonary arterial wedge pressure tracing might be an acceptable alternative to the intrapleural balloon method or intraesophageal balloon method for measuring intrapleural cough pressure.


Copyright © 1979, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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