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Benefits of Manometer in Non-Invasive Ventilatory Support

Published online by Cambridge University Press:  26 July 2017

Rodrigo Silva Lacerda ,
Fernando Cesar Anastácio de Lima ,
Leonardo Pereira Bastos ,
Anderson Fardin Vinco ,
Felipe Britto Azevedo Schneider ,
Yves Luduvico Coelho ,
Heitor Gomes Costa Fernandes ,
João Marcus Ramos Bacalhau ,
Igor Matheus Simonelli Bermudes  and
Claudinei Ferreira da Silva
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Rodrigo Silva Lacerda
Affiliation:
Department of Emergency Medical Services-Fire Academy, Escola Superior de Bombeiros-Polícia Militar do Estado de São Paulo, Franco da Rocha, Brazil
Fernando Cesar Anastácio de Lima
Affiliation:
Department of Emergency Medical Services-Fire Academy, Escola Superior de Bombeiros-Polícia Militar do Estado de São Paulo, Franco da Rocha, Brazil
Leonardo Pereira Bastos
Affiliation:
Inovelab, Laboratory of Engineering, Vitória, ES, Brazil
Anderson Fardin Vinco
Affiliation:
Inovelab, Laboratory of Engineering, Vitória, ES, Brazil
Felipe Britto Azevedo Schneider
Affiliation:
Inovelab, Laboratory of Engineering, Vitória, ES, Brazil
Yves Luduvico Coelho
Affiliation:
Inovelab, Laboratory of Engineering, Vitória, ES, Brazil
Heitor Gomes Costa Fernandes
Affiliation:
Inovelab, Laboratory of Engineering, Vitória, ES, Brazil
João Marcus Ramos Bacalhau
Affiliation:
Inovelab, Laboratory of Engineering, Vitória, ES, Brazil
Igor Matheus Simonelli Bermudes
Affiliation:
Inovelab, Laboratory of Engineering, Vitória, ES, Brazil
Claudinei Ferreira da Silva
Affiliation:
Department of Emergency Medical Services-Fire Academy, Escola Superior de Bombeiros-Polícia Militar do Estado de São Paulo, Franco da Rocha, Brazil
Luiza Paterlini da Silva
Affiliation:
Inovelab, Laboratory of Engineering, Vitória, ES, Brazil
Rogério Pezato*
Affiliation:
Department of Emergency Medical Services-Fire Academy, Escola Superior de Bombeiros-Polícia Militar do Estado de São Paulo, Franco da Rocha, Brazil ENT Research Laboratory, Department of Otolaryngology-Head and Neck Surgery, Federal University of São Paulo, São Paulo, SP, Brazil
*
Correspondence: Rogério Pezato, MD, PhD Rua dos Otonis, 700 Piso Superior Vila Clementino, 04025-002 São Paulo, SP, Brazil E-mail: pezatobau@ig.com.br
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Abstract

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.

LacerdaRS, de LimaFCA, BastosLP, VincoAF, SchneiderFBA, CoelhoYL, FernandesHGC, BacalhauJMR, BermudesIMS, da SilvaCF, da SilvaLP, PezatoR. Benefits of Manometer in Non-Invasive Ventilatory Support. Prehosp Disaster Med. 2017;32(6):615–620.

Keywords

airwaycardiac arrestventilatory support
Type
Original Research
Information
Prehospital and Disaster Medicine , Volume 32 , Issue 6 , December 2017 , pp. 615 - 620
Copyright
© World Association for Disaster and Emergency Medicine 2017 

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Footnotes

Conflicts of interest/funding: This manuscript had technical support from Vent-Logos (Vitória, ES, Brazil), the company responsible for the manufacture of automatic ventilators. The authors declare no conflicts of interest.

References

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