Auto-positive end-expiratory pressure during one-lung ventilation using a double-lumen endobronchial tube

Anesthesia and Analgesia
K YokotaM Mihira

Abstract

The present study was undertaken to investigate the possible relationships between the magnitude of autopositive end-expiratory pressure (auto-PEEP) and measured PaO2 during one-lung ventilation (OLV). Forty-one adults received OLV anesthesia using a tidal volume of 8 mL/kg and a respiratory rate of 12 breaths/min. Auto-PEEP was quantified using an end-expiratory port occlusion method. During two-lung ventilation (2LV), auto-PEEP was observed in 18 of 41 patients and ranged from 0.5 to 2.5 cm H2O. During OLV, auto-PEEP was observed in 34 of 41 patients and ranged from 0.5 to 10 cm H2O. The mean (+/- SD) value of auto-PEEP was significantly higher during OLV than during 2LV (3.2 +/- 3.3 cm H2O versus 0.5 +/- 0.7 cm H2O, P < 0.0001). Auto-PEEP during OLV correlated inversely with preoperative forced expiratory volume in 1 s/forced vital capacity (y = 12.5 - 0.13x, r = -.05, P < 0.005). During OLV, there was no significant correlation between auto-PEEP and measured PaO2. These findings confirm that many patients do not exhale completely to functional residual capacity during OLV.

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Citations

Jun 4, 2005·Der Anaesthesist·J MotschJ Roggenbach
Nov 18, 2008·Journal of Anesthesia·Yuhji SaitohYoshinori Nakata
Sep 27, 2001·Anesthesiology Clinics of North America·L L Szegedi
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May 16, 1998·Journal of Cardiothoracic and Vascular Anesthesia·P D Slinger, D R Hickey
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Aug 16, 2016·Journal of Cardiothoracic and Vascular Anesthesia·Johannes SpaethStefan Schumann
Feb 27, 2020·Korean journal of anesthesiology·Hyun Joo AhnEun-Ho Lee
Jan 22, 2019·Anesthesiology·MiHye ParkIn Sun Song
Mar 21, 2000·International Anesthesiology Clinics·P F Dunn
Mar 21, 2000·International Anesthesiology Clinics·P W SeigneS C Body

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