Results 201 to 210 of about 15,376 (236)
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Pulse Transit Time as a Measure of Inspiratory Effort in Children
Chest, 2003The current criterion standard for measuring inspiratory effort, esophageal manometry, is an invasive procedure that young patients find intolerable. Inspiratory effort can also be assessed noninvasively by measuring the pulse transit time (PTT). PTT is the time the pulse wave (PW) takes to travel between two arterial sites (normally heart to finger ...
Maria Pia Villa +2 more
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Esophageal and transdiaphragmatic pressure swings as indices of inspiratory effort
Respiratory Physiology and Neurobiology, 2021To 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 ...
Evangelia Akoumianaki +2 more
exaly +3 more sources
Inspiratory effort and occlusion pressure in triggered mechanical ventilation
Intensive Care Medicine, 1988We 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 +2 more
exaly +3 more sources
Techniques to monitor respiratory drive and inspiratory effort
Current Opinion in Critical Care, 2020Purpose 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
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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
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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
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The impact of inspiratory effort on inspiratory flow through Turbuhaler in asthmatic patients
European Respiratory Journal, 1997To 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
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Relationship between inspiratory drive and perceived inspiratory effort in normal man
Clinical Science, 19901. 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 +3 more
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Expiratory versus inspiratory efforts in suffocating pigeons
Agents and Actions, 1972The 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
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Relationship between inspiratory effort and breathlessness in pregnancy
Journal of Applied Physiology, 1991Using 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 +3 more
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The Effect of Inspiratory Effort on Circuit Compensation for Volume-Targeted Modes
Respiratory Care, 2022BACKGROUND: 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
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