Benefits of Manometer in Non-Invasive Ventilatory Support

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2017
Autores
Lacerda, Rodrigo Silva
Anastacio de Lima, Fernando Cesar
Bastos, Leonardo Pereira
Vinco, Anderson Fardin
Azevedo Schneider, Felipe Britto
Coelho, Yves Luduvico
Costa Fernandes, Heitor Gomes
Ramos Bacalhau, Joao Marcus
Simonelli Bermudes, Igor Matheus
da Silva, Claudinei Ferreira
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Introduction: Effective ventilation during cardiopulmonary resuscitation (CPR) is essential to reduce morbidity and mortality rates in cardiac arrest. Hyperventilation during CPR reduces the efficiency of compressions and coronary perfusion. Problem: How could ventilation in CPR be optimized? The objective of this study was to evaluate non-invasive ventilator support using different devices. Methods: The study compares the regularity and intensity of non-invasive ventilation during simulated, conventional CPR and ventilatory support using three distinct ventilation devices: a standard manual resuscitator, with and without airway pressure manometer, and an automatic transport ventilator. Student's t-test was used to evaluate statistical differences between groups. P values < .05 were regarded as significant. Results: Peak inspiratory pressure during ventilatory support and CPR was significantly increased in the group with manual resuscitator without manometer when compared with the manual resuscitator with manometer support (MS) group or automatic ventilator (AV) group. Conclusion: The study recommends for ventilatory support the use of a manual resuscitator equipped with MS or AVs, due to the risk of reduction in coronary perfusion pressure and iatrogenic thoracic injury during hyperventilation found using manual resuscitator without manometer.
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Prehospital And Disaster Medicine. New York, v. 32, n. 6, p. 615-620, 2017.
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