Work of Breathing and Airway Occlusion Pressure during Assist-Mode Mechanical Ventilation

CHEST Journal ◽  
1988 ◽  
Vol 93 (3) ◽  
pp. 571-576 ◽  
Author(s):  
Catherine S.H. Sassoon ◽  
C. Kees Mahutte ◽  
Teresita T. Te ◽  
Daniel H. Simmons ◽  
Richard W. Light
Keyword(s):  
Mechanical Ventilation ◽  
Work Of Breathing ◽  
Occlusion Pressure ◽  
Airway Occlusion ◽  
Airway Occlusion Pressure

scholarly journals Estimating actual inspiratory muscle pressure from airway occlusion pressure at 100 msec

2020 ◽  
Vol 1 (1) ◽  
pp. 8-13
Author(s):  
Natsumi Hamahata ◽  
Ryota Sato ◽  
Kimiyo Yamasaki ◽  
Sophie Pereira ◽  
Ehab Daoud
Keyword(s):  
Mechanical Ventilation ◽  
Respiratory Failure ◽  
Invasive Mechanical Ventilation ◽  
Normal Lung ◽  
P Value ◽  
Occlusion Pressure ◽  
Mechanical Ventilators ◽  
Airway Occlusion ◽  
Esophageal Balloon ◽  
Airway Occlusion Pressure

Background: Quantification of the patient’s respiratory effort during mechanical ventilation is very important, and calculating the actual muscle pressure (Pmus) during mechanical ventilation is a cumbersome task and usually requires an esophageal balloon manometry. Airway occlusion pressure at 100 milliseconds (P0.1) can easily be obtained non-invasively. There has been no study investigating the association between Pmus and P0.1. Therefore, we aimed to investigate whether P0.1 correlates to Pmus and can be used to estimate actual Pmus Materials and Methods: A bench study using lung simulator (ASL 5000) to simulate an active breathing patient with Pmus from 1 to 30 cmH2O by increments of 1 was conducted. Twenty active breaths were measured in each Pmus. The clinical scenario was constructed as a normal lung with a fixed setting of compliances of 60 mL/cmH2O and resistances of 10 cmH2O/l/sec. All experiments were conducted using the pressure support ventilation mode (PSV) on a Hamilton-G5 ventilator (Hamilton Medical AG, Switzerland), Puritan Bennett 840TM (Covidien-Nellcor, CA) and Avea (CareFusion, CA). Main results: There was significant correlation between P 0.1 and Pmus (correlation coefficient = - 0.992, 95% CI: - 0.995 to -0.988, P-value<0.001). The equation was calculated as follows: Pmus = -2.99 x (P0.1) + 0.53 Conclusion: Estimation of Pmus using P 0.1 as a substitute is feasible, available, and reliable. Estimation of Pmus has multiple implications, especially in weaning of mechanical ventilation, adjusting ventilator support, and calculating respiratory mechanics during invasive mechanical ventilation. Keywords: P 0.1, Inspiratory occlusion pressure, WOB, Esophageal balloon, mechanical ventilators, respiratory failure Keywords: P 0.1, P mus, Inspiratory occlusion pressure, WOB, Esophageal balloon, mechanical ventilators, respiratory failure

scholarly journals Airway Occlusion Pressure Revisited

2020 ◽  
Vol 201 (9) ◽  
pp. 1027-1028
Author(s):  
Catherine S. Sassoon ◽  
Magdy Younes
Keyword(s):  
Occlusion Pressure ◽  
Airway Occlusion ◽  
Airway Occlusion Pressure

Prediction of Successful Ventilator Weaning Using Airway Occlusion Pressure and Hypercapnic Challenge

CHEST Journal ◽  
1987 ◽  
Vol 91 (4) ◽  
pp. 496-499 ◽  
Author(s):  
A. Bruce Montgomery ◽  
Rolf H.O. Holle ◽  
Sara R. Neagley ◽  
David J. Pierson ◽  
Robert B. Schoene
Keyword(s):  
Ventilator Weaning ◽  
Occlusion Pressure ◽  
Airway Occlusion ◽  
Airway Occlusion Pressure

Airway Occlusion Pressure

1995 ◽  
pp. 248-253 ◽  
Author(s):  
W. A. Whitelaw ◽  
J. P. Derenne ◽  
J. Milic-Emili
Keyword(s):  
Occlusion Pressure ◽  
Airway Occlusion ◽  
Airway Occlusion Pressure
Sign in / Sign up

Export Citation Format

Share Document