Manual Ventilation and Sustained Lung Inflation in an Experimental Model: Influence of Equipment Type and Operator's Training

Manual Ventilation and Sustained Lung Inflation in an Experimental Model: Influence of Equipment Type and Operator's Training

Author do Prado, Cristiane Google Scholar
Guinsburg, Ruth Autor UNIFESP Google Scholar
Branco de Almeida, Maria Fernanda Autor UNIFESP Google Scholar
Mascaretti, Renata Suman Google Scholar
Vale, Luciana Assis Google Scholar
Haddad, Luciana Branco Google Scholar
Rebello, Celso Moura Google Scholar
Abstract Aim To compare the influence of devices for manual ventilation and individual experience on the applied respiratory mechanics and sustained lung inflation. Methods A total of 114 instructors and non-instructors from the Neonatal Resuscitation Program of the Brazilian Society of Pediatrics participated in this study. Participants ventilated an intubated manikin. To evaluate respiratory mechanics and sustained lung inflation parameters, a direct comparison was made between the self-inflating bag and the T-shaped resuscitator (T-piece), followed by an analysis of the effectiveness of the equipment according to the participants' education and training. Results A difference between equipment types was observed for the tidal volume, with a median (interquartile range) of 28.5 mL (12.6) for the self-inflating bag and 20.1 mL (8.4) for the T-piece in the instructor group and 31.6 mL (14) for the self-inflating bag and 22.3 mL (8.8) for the T-piece in the non-instructor group. Higher inspiratory time values were observed with the T-piece in both groups of professionals, with no significant difference between them. The operator's ability to maintain the target pressure over the 10 seconds of sustained lung inflation was evaluated using the area under the pressure-time curve and was 1.7-fold higher with the use of the T-piece. Inspiratory pressure and mean airway pressure applied during sustained lung inflation were greater with the self-inflating bag, as evaluated between the beginning and the end of the procedure. Conclusion The T-piece resulted in lower tidal volume and higher inspiratory time values, irrespective of the operator's experience, and increased the ease of performing the sustained lung inflation maneuver, as demonstrated by the maintenance of target pressure for the desired period and a higher mean airway pressure than that obtained using the self-inflating bag.
xmlui.dri2xhtml.METS-1.0.item-coverage San Francisco
Language English
Sponsor Brazilian Society of Pediatrics
Date 2016
Published in Plos One. San Francisco, v. 11, n. 2, p. -, 2016.
ISSN 1932-6203 (Sherpa/Romeo, impact factor)
Publisher Public Library Science
Extent -
Origin http://dx.doi.org/10.1371/journal.pone.0148475
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000370038400046
URI https://repositorio.unifesp.br/handle/11600/57978

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