Results 201 to 210 of about 15,338 (233)

Inspiratory effort and occlusion pressure in triggered mechanical ventilation

Intensive Care Medicine, 1988
We have studied eleven patients ventilated in the assisted mode during recovery from acute respiratory failure. We have measured the effort required to trigger the pressure demand valve for 3 different ventilators, and have measured the occlusion pressure as an index of neuromuscular inspiratory drive.
Rafael Fernández, Salvador Benito, J Milic-Emili   +2 more
exaly   +3 more sources

Techniques to monitor respiratory drive and inspiratory effort

Current Opinion in Critical Care, 2020
Purpose of review There is increased awareness that derangements of respiratory drive and inspiratory effort are frequent and can result in lung and diaphragm injury together with dyspnea and sleep disturbances.
Irene Telias, Savino Spadaro
openaire   +2 more sources

"Effects of fenoterol on inspiratory effort sensation and fatigue during inspiratory threshold loading"

Journal of Applied Physiology, 1996
We studied the effects of a single dose of fenoterol on the relationship between inspiratory effort sensation (IES) and inspiratory muscle fatigue induced by inspiratory threshold loading in healthy subjects. The magnitude of the threshold was 60% of maximal static inspiratory mouth pressure (PI,mmax) at functional residual capacity, and the duty ...
J, Suzuki, S, Suzuki, T, Okubo
openaire   +4 more sources

The impact of inspiratory effort on inspiratory flow through Turbuhaler in asthmatic patients

European Respiratory Journal, 1997
To investigate the impact of the inhalation effort on the peak inspiratory flow through Turbuhaler, 100 asthmatics having a wide range of asthma severity (baseline forced expiratory volume in one second 28-127% of predicted normal) were studied.
G, Persson, B, Olsson, S, Soliman
openaire   +2 more sources

Esophageal and transdiaphragmatic pressure swings as indices of inspiratory effort

Respiratory Physiology & Neurobiology, 2021
To describe the correlation between the inspiratory esophageal and transdiaphragmatic pressure swings (ΔPes and ΔPdi), easily measured indices of inspiratory effort, with the gold-standard, the transdiaphragmatic pressure time product (PTPPdi/min), and assess the accuracy of swing pressures in predicting very high or low effort.Retrospective analysis ...
Katerina Vaporidi, Stella Soundoulounaki, Eleftherios Papadakis, Evangelia Akoumianaki, Eumorfia Kondili, Dimitris Georgopoulos   +5 more
openaire   +2 more sources

Relationship between inspiratory drive and perceived inspiratory effort in normal man

Clinical Science, 1990
1. To examine the relationship between the inspiratory effort sensation (IES) and respiratory drive as reflected by mouth occlusion pressure (P0.1) we have studied loaded and unloaded ventilatory responses to CO2 in 12 normal subjects. 2.
J E, Clague, J, Carter, M G, Pearson, P M, Calverley   +3 more
openaire   +2 more sources

Expiratory versus inspiratory efforts in suffocating pigeons

Agents and Actions, 1972
The respiration of anaesthetized pigeons, suffocated to death by tracheal occlusion, is followed by means of the intratracheal pressure tracing. A special procedure allows to distinguish expiratory from inspiratory efforts.
K, Bucher, B, Huber, P, Baettig
openaire   +2 more sources

Relationship between inspiratory effort and breathlessness in pregnancy

Journal of Applied Physiology, 1991
Using open-magnitude scaling, we compared the relationships between breathlessness, inspiratory esophageal pressure swing (delta Pes), and ventilation in pregnancy and postpartum. Thirteen healthy women performed progressive cycle exercise tests at 33 +/- 2 wk gestation and 12 +/- 3 wk postpartum.
S K, Field, S G, Bell, D F, Cenaiko, W A, Whitelaw   +3 more
openaire   +2 more sources

Maximal activation of the human diaphragm but not inspiratory intercostal muscles during static inspiratory efforts

Neuroscience Letters, 1988
It is widely held that transdiaphragmatic pressure is a reliable index of the extent of central activation of the diaphragm but the maximal voluntary transdiaphragmatic pressure is lower during inspiratory than expulsive efforts. To determine whether the diaphragm is fully activated during the two manoeuvres supramaximal stimuli were delivered to both ...
D K, McKenzie, B L, Plassman, S C, Gandevia   +2 more
openaire   +2 more sources

The Effect of Inspiratory Effort on Circuit Compensation for Volume-Targeted Modes

Respiratory Care, 2022
BACKGROUND: Critical-care ventilators provide patient circuit compensation (CC) to counteract the loss of volume due to patient circuit compliance. No studies show the effect of inspiratory efforts (indicating maximal value of the muscle pressure waveforms [P max
Ping-Hui, Liu, Robert L, Chatburn
openaire   +2 more sources