A high flow turbine CPAP system

Moran, John L.; Jackson, M. P.; Cameron, D. M.; Peisach, A R; Cunningham, D. N.; O'Fathartaigh, M. S.

doi:10.1007/bf00256773

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…The system must be able to deliver flow rates sufficient to satisfy the dyspnoeic patient (up to 120 L/min), or incorporate a reservoir to match the patient's increased minute volume. Frequently used systems include a high flow turbine system 20 or a reservoir based on the Mapleson D circuit 6 . The reservoir bag is usually compressed between weighted, hinged boards to minimise variations of airway pressure, hence minimising resistance and work of breathing.…”

Section: Special Delivery Systemsmentioning

confidence: 99%

Oxygen therapy in emergency medicine Part 2. Paediatric oxygen therapy, special considerations and complications

Smart¹,

Mark²

1992

Emergency Medicine

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This is the second of a two part article reviewing oxygen therapy in emergency medicine. The first part covered the physiology of oxygen, measurement of oxygenation and oxygen delivery apparatus. This section reviews oxygen therapy in specific clinical settings including paediatrics, acute medical conditions and shock. Oxygen therapy during patient transport, complications of oxygen therapy and special delivery systems are also reviewed. The emergency physician should possess a thorough knowledge of this therapeutic modality which forms one of the cornerstones of emergency medicine.

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Section: Special Delivery Systemsmentioning

confidence: 99%

Oxygen therapy in emergency medicine Part 2. Paediatric oxygen therapy, special considerations and complications

Smart¹,

Mark²

1992

Emergency Medicine

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Inspiratory work imposed by continuous positive airway pressure (CPAP) machines: the effect of CPAP level and endotracheal tube size

et al. 1992

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Inspiratory work imposed by Continuous Positive Airway Pressure (CPAP) machines has been a matter of concern. The imposed inspiratory work of CPAP machine circuits (Wcir) and the effect of the total breathing apparatus with endotracheal tube (ETT) and connector included in the circuit (Wapp), were measured in three continuous flow (CF) and various configurations of three demand flow (DF) CPAP machines. The performance was assessed at 0, 5, 10 and 15 cmH2O CPAP using a Michigan Instruments Test Lung Model 1600, internal compliance set at 50 ml/cmH2O, driven at square wave inspiratory flows (VI) of 20, 40 and 60 l/min at a tidal volume of 500 ml. Work, expressed in mJ/l, was calculated from the area of pressure-volume loops. Inspiratory work, Wcir and Wapp, was dependent upon the particular CPAP machine, VI and ETT size, but not upon CPAP level, being maximum at VI 601/min and with ETT 7.0 mm i.d. Work values (Wcir) varied from 50 to 325 mJ/l with both CF and DF machines and up to 1100 mJ/l with ETT and connector (Wapp). No consistent advantage of CF over DF machines was demonstrated. There was little advantage of high gas flows (greater than 5 l/min) in various DF circuits. Within an individual machine maximum negative pressures generated during inspiration correlated with both Wcir and Wapp.

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Non-Invasive Ventilation for Adult Acute Respiratory Failure. Part I

Duke,

Bersten

1999

Critical Care and Resuscitation

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A high flow turbine CPAP system

Cited by 5 publications

References 17 publications

Oxygen therapy in emergency medicine Part 2. Paediatric oxygen therapy, special considerations and complications

Oxygen therapy in emergency medicine Part 2. Paediatric oxygen therapy, special considerations and complications

Inspiratory work imposed by continuous positive airway pressure (CPAP) machines: the effect of CPAP level and endotracheal tube size

Non-Invasive Ventilation for Adult Acute Respiratory Failure. Part I

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