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Gas density and the work of breathing
Respiration Physiology, 1967Abstract Man, living at 300 meters under the sea, will breathe gas mixture of oxygen and helium which are extremely dense, due to their pressures. These high densities will cause gas flow through the tracheo-bronchial tree to be turbulent, and the work of breathing will become a function of gas density.
S C, Glauser, E M, Glauser, B F, Rusy
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Bedside measurement of work of breathing
International journal of clinical monitoring and computing, 1993This paper describes the technique of measuring work of breathing, presented at the 13th International Symposium on Computers in Clinical Medicine and Anaesthesiology, Rotterdam, June 1992. Measuring work of breathing has clinical uses in the Intensive Care Unit. Oxygen consumption does not truly reflect work of breathing.
T E, Oh, S, Bhatt, Y H, Tam
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Assessing effort and work of breathing
Current Opinion in Critical Care, 2014Spontaneous breathing has been shown to induce both positive and negative effects on the function and on injury of lungs and diaphragm during critical illness; thus, monitoring of the breathing effort generated by the patient might be valuable for a better understanding of the mechanisms of disease and to set properly ventilation.
BELLANI, GIACOMO, PESENTI, ANTONIO MARIA
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Work of Breathing After Extubation
Chest, 1995Recently we showed that work of breathing was higher in the immediate period after extubation as compared with spontaneous breathing through an endotracheal tube. In this study, we evaluated the glottis and trachea as potential sites of increased airway resistance after extubation.
A M, Ishaaya, S D, Nathan, M J, Belman
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1999
Breathing is a form of muscular exercise. The work of breathing may be assessed by two different, but complementary, approaches: a) by measuring the mechanical work done by the respiratory muscles (or by a ventilator substituting for them); b) by estimating the total energy cost of breathing by measurement of the oxygen consumption of the respiratory ...
J. Milic-Emili, E. Rocca, E. D’Angelo
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Breathing is a form of muscular exercise. The work of breathing may be assessed by two different, but complementary, approaches: a) by measuring the mechanical work done by the respiratory muscles (or by a ventilator substituting for them); b) by estimating the total energy cost of breathing by measurement of the oxygen consumption of the respiratory ...
J. Milic-Emili, E. Rocca, E. D’Angelo
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Critical Care Medicine, 1990
During the course of a critical illness, many patients become ventilator dependent. The standard assessment criteria are not always accurate in predicting potential for extubation. This investigation was designed to analyze whether the work of breathing (WOB) was a more reliable predictor of ventilator dependence.
S A, Shikora +5 more
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During the course of a critical illness, many patients become ventilator dependent. The standard assessment criteria are not always accurate in predicting potential for extubation. This investigation was designed to analyze whether the work of breathing (WOB) was a more reliable predictor of ventilator dependence.
S A, Shikora +5 more
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Work of breathing during successful spontaneous breathing trial
Journal of Critical Care, 2009The aim of this study was to evaluate the work of breathing (WOB) behavior during a 120-minute successful spontaneous breathing trial (SBT) with T-tube trial, and its predictive value for extubation outcome.A prospective cohort study.2 medical-surgical intensive care units.Fifty-one consecutive patients mechanically ventilated for more than 48 hours ...
Cassiano, Teixeira +3 more
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Abstract Work of breathing is defined as the energy spent to move air in and out of the lung during inspiration and expiration, respectively. It comprises the elastic work and the resistive work; their relationship can be demonstrated through the Campbell diagram.
Ba Hoang Nguyen Pham, Jason Bang
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Ba Hoang Nguyen Pham, Jason Bang
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Work of Breathing and Abnormal Mechanics
Surgical Clinics of North America, 1974In most forms of respiratory failure the individual increases his respiratory effort—work—to try to compensate for the abnormal blood-gas levels. The amount of work required to compensate for the low P a o 2 and/or high P a co 2 controls whether the patient will be able to prevent a dangerous fall in P a o 2 and how long he can maintain ...
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Nasal Prongs and Work of Breathing
Pediatrics, 1980The subject of the article by Goldman et al1 is without doubt a highly interesting one to which our attention had been drawn a few years ago. We became aware of the fact that, although most of our neonates treated with continous positive airway pressure (CPAP) did well, some seemed to become exhausted very quickly by the apparently increased work of ...
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