Home  About us  Contact
 

Ventilation Device (ventilation + device)

Distribution by Scientific Domains
Medical Sciences100%

Selected Abstracts

A bench study of ventilation via two self-assembled jet devices and the Oxygen Flow Modulator in simulated upper airway obstruction

ANAESTHESIA, Issue 12 2009
A. E. W. Hamaekers
Summary In managing an obstructed upper airway, an emergency transtracheal ventilation device needs to function as a bidirectional airway, allowing both insufflation of oxygen and egress of gas. The aim of the present study was to determine the capability of two self-assembled, three-way stopcock based jet devices and the Oxygen Flow Modulator to function as a bidirectional airway in conjunction with a small lumen catheter. For each device the effective pressures at the catheter's tip during the expiratory phase and the achievable minute volumes were determined in a laboratory set-up. Using the three-way stopcock based jet devices, changing the connection position of the transtracheal catheter from the in-line port to the side port of the three-way stopcock resulted in a decrease of expiratory pressure at the catheter's tip from a dangerous mean (SD) of 71.1 (0.08) cmH2O to ,14.71 (0.05) cmH2O. Yet this negative expiratory pressure did not facilitate the egress of gas. All devices tested impeded the expiratory outflow and hence decreased the achievable minute volume. This decrease in minute volume was smallest with the Oxygen Flow Modulator. [source]

Positive pressure ventilation at neonatal resuscitation: review of equipment and international survey of practice

ACTA PAEDIATRICA, Issue 5 2004
CPF O'Donnell
Background: The equipment used to provide positive pressure ventilation to newborns needing resuscitation at delivery varies between institutions. Devices were reviewed and their use surveyed in a sample of neonatal centres worldwide. Aim: To determine which equipment is used to resuscitate newborns at delivery in a sample of teaching hospitals around the world. Methods: A questionnaire was sent via e-mail to a neonatologist at each of 46 NICUs in 23 countries on five continents, asking which resuscitation equipment they used. If it was not returned, follow-up was by e-mail. Results: Data were obtained from 40 (87%) centres representing 19 countries. Round face masks are used at 34 (85%) centres, anatomically shaped masks are used exclusively at six (15%) and a mixture of types are used at 11 (28%). Straight endotracheal tubes are used exclusively at 36 (90%) centres; shouldered tubes are used infrequently at three of the four centres that have them. The self-inflating bag is the most commonly used manual ventilation device (used at 33 (83%) centres), the Laerdal Infant Resuscitator± the most popular model. Flow-inflating bags are used at 10 (25%) centres. The Neopuff Infant Resuscitator± is used at 12 (30%) centres. Varying oxygen concentrations are provided during neonatal resuscitation at half of the centres, while 100% oxygen is routinely used at the other half. Conclusions: This survey shows considerable variation in practice, reflecting this lack of evidence and consequent uncertainty among clinicians. Comparison of the two most popular manual ventilation devices, the Laerdal Infant Resuscitator and the Neopuff Infant Resuscitator, is urgently required. [source]

Self inflating ventilation devices and FIo2

ANAESTHESIA, Issue 11 2009
L. Dimpel
No abstract is available for this article. [source]

Positive pressure ventilation at neonatal resuscitation: review of equipment and international survey of practice

ACTA PAEDIATRICA, Issue 5 2004
CPF O'Donnell
Background: The equipment used to provide positive pressure ventilation to newborns needing resuscitation at delivery varies between institutions. Devices were reviewed and their use surveyed in a sample of neonatal centres worldwide. Aim: To determine which equipment is used to resuscitate newborns at delivery in a sample of teaching hospitals around the world. Methods: A questionnaire was sent via e-mail to a neonatologist at each of 46 NICUs in 23 countries on five continents, asking which resuscitation equipment they used. If it was not returned, follow-up was by e-mail. Results: Data were obtained from 40 (87%) centres representing 19 countries. Round face masks are used at 34 (85%) centres, anatomically shaped masks are used exclusively at six (15%) and a mixture of types are used at 11 (28%). Straight endotracheal tubes are used exclusively at 36 (90%) centres; shouldered tubes are used infrequently at three of the four centres that have them. The self-inflating bag is the most commonly used manual ventilation device (used at 33 (83%) centres), the Laerdal Infant Resuscitator± the most popular model. Flow-inflating bags are used at 10 (25%) centres. The Neopuff Infant Resuscitator± is used at 12 (30%) centres. Varying oxygen concentrations are provided during neonatal resuscitation at half of the centres, while 100% oxygen is routinely used at the other half. Conclusions: This survey shows considerable variation in practice, reflecting this lack of evidence and consequent uncertainty among clinicians. Comparison of the two most popular manual ventilation devices, the Laerdal Infant Resuscitator and the Neopuff Infant Resuscitator, is urgently required. [source]