Alterações da pressão de pico inspiratório e do volume corrente fornecidos por reanimadores manuais com balão auto-inflável em função do fluxo de entrada de oxigênio utilizado

Godoy, Armando Carlos Franco de; Vieira, Reinaldo Wilson; Capitani, Eduardo Mello De

doi:10.1590/s1806-37132008001000010

Cited by 8 publications

(6 citation statements)

References 11 publications

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“…Nevertheless, the use of a source of gas connected to a self-inflating bag with oxygen input directly inside the bag may have an important influence on the value of respiratory parameters. 30 Furthermore, ventilatory parameters may be affected by the use of a reservoir, and by the maximum capacity and compliance of the bag.…”

Section: Resultsmentioning

confidence: 99%

Influência do manuseio do balão autoinflável neonatal sobre o pico de pressão e o volume corrente

Bassani¹,

Filho²,

Coppo³

et al. 2009

J. Pediatr. (Rio J.)

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Objective: To evaluate how different ways of handling the neonatal self-inflating bag influence peak pressure and tidal volume.Methods: This is an experimental study involving 141 different professionals (physicians, resident physicians, physiotherapists, nurses, and nursing technicians), who ventilated an artificial lung, adjusted to simulate the lung of a term neonate, using a self-inflating bag. Each professional handled the ventilator in five different ways: a) using both hands (10 fingers); and, with only one hand, b) five fingers, c) four fingers, d) three fingers, and e) two fingers. Peak pressure and tidal volume data were recorded by the artificial lung equipment.Results: Both variables showed high variability, from 2.5 to 106.3 cmH 2 O (mean = 39.73 cmH 2 O; 95%CI 37.32-42.13) for peak pressure, and from to 4 to 88 mL (mean = 39.56 mL; 95%CI 36.86-42.25) for tidal volume. There was no significant influence of the profession on any of the variables (p > 0.05). However, bag handling significantly influenced both peak pressure and tidal volume (p < 0.0001), which were higher when the operator used both hands. Conclusion:The results indicate that most professionals delivered excessively high peak pressures and tidal volumes, which could increase the risk of barotrauma and volutrauma, especially when both hands were used to ventilate. On the other hand, a small number of professionals delivered insufficient pressure and volume for adequate lung expansion and ventilation. The delivery of inadequate ventilation was not dependent on profession. J Pediatr (Rio J). 2009;85(3):217-222:Neonatal resuscitation, manual lung ventilation, self-inflating bags, barotrauma. No conflicts of interest declared concerning the publication of this article. Original article

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Section: Resultsmentioning

confidence: 99%

Influência do manuseio do balão autoinflável neonatal sobre o pico de pressão e o volume corrente

Bassani¹,

Filho²,

Coppo³

et al. 2009

J. Pediatr. (Rio J.)

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“…( 5 , 12 , 13 ) Although those studies investigated important characteristics, such as the oxygen fraction delivered by MRs with and without an oxygen reservoir, the present study evaluated other equally important properties that had not yet been reported in the national literature.…”

Section: Discussionmentioning

confidence: 99%

“…( 5 , 12 , 13 ) Embora esses estudos tenham investigado características importantes, como, por exemplo, a fração de oxigênio ofertada pelos RMs com e sem o reservatório de oxigênio, o presente estudo avaliou outras propriedades igualmente importantes que ainda não haviam sido relatadas na literatura nacional.…”

Section: Discussionunclassified

Evaluation of manual resuscitators used in ICUs in Brazil

et al. 2013

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OBJECTIVE: To evaluate the performance of manual resuscitators (MRs) used in Brazil in accordance with international standards. METHODS: Using a respiratory system simulator, four volunteer physiotherapists employed eight MRs (five produced in Brazil and three produced abroad), which were tested for inspiratory and expiratory resistance of the patient valve; functioning of the pressure-limiting valve; and tidal volume (VT) generated when the one-handed and two-handed techniques were used. The tests were performed and analyzed in accordance with the American Society for Testing and Materials (ASTM) F920-93 criteria. RESULTS: Expiratory resistance was greater than 6 cmH2O . L−1 . s−1 in only one MR. The pressure-limiting valve, a feature of five of the MRs, opened at low pressures (< 17 cmH2O), and the maximal pressure was 32.0-55.9 cmH2O. Mean VT varied greatly among the MRs tested. The mean VT values generated with the one-handed technique were lower than the 600 mL recommended by the ASTM. In the situations studied, mean VT was generally lower from the Brazilian-made MRs that had a pressure-limiting valve. CONCLUSIONS: The resistances imposed by the patient valve met the ASTM criteria in all but one of the MRs tested. The pressure-limiting valves of the Brazilian-made MRs usually opened at low pressures, providing lower VT values in the situations studied, especially when the one-handed technique was used, suggesting that both hands should be used and that the pressure-limiting valve should be closed whenever possible.

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“…A BVM has four parts: exhalation port, patient valve, self-inflated bag, and an oxygen inlet. Optional components include a positive end-expiratory pressure (PEEP) valve, an oxygen reservoir, and a pressure gauge [6]. Figure 1A presents a mechanical diagram of BVM components and is intended for engineering purposes.…”

Section: Bag Valve Maskmentioning

confidence: 99%

Automated Inflating Resuscitator (AIR): Design and Development of a 3D-Printed Ventilator Prototype and Corresponding Simulation Scenario Based on the Management of a Critical COVID-19 Patient

Gino¹,

Wang²,

d'Entremont³

et al. 2020

Cureus

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Recent surges in COVID-19 cases have generated an urgent global demand for ventilators. This demand has led to the development of numerous low-cost ventilation devices, but there has been less emphasis on training health professionals to use these new devices safely. The aim of this technical report is twofold: first, to describe the design and manufacturing process of the automated inflating resuscitator (AIR), a 3Dprinted ventilator training device which operates on the principle of pushing a bag valve mask; second, to present a simulation scenario that can be used for training health professionals how to use this and similar, low-cost, 3D-printed ventilators in the context of ventilator shortages caused by COVID-19. To this end, the AIR was designed in an expedient manner in accordance with basic functionality established by the Medicines and Healthcare Products Regulatory Agency (United Kingdom) for provisional clinical use in light of COVID-19.

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Alterações da pressão de pico inspiratório e do volume corrente fornecidos por reanimadores manuais com balão auto-inflável em função do fluxo de entrada de oxigênio utilizado

Cited by 8 publications

References 11 publications

Influência do manuseio do balão autoinflável neonatal sobre o pico de pressão e o volume corrente

Influência do manuseio do balão autoinflável neonatal sobre o pico de pressão e o volume corrente

Evaluation of manual resuscitators used in ICUs in Brazil

Automated Inflating Resuscitator (AIR): Design and Development of a 3D-Printed Ventilator Prototype and Corresponding Simulation Scenario Based on the Management of a Critical COVID-19 Patient

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