Respiratory mechanics analysis in neurocritical patients admitted to a general icu ventilated in prvc, pcv and vcv modes

Authors

  • Gabriela dos Santos Martins Universidade Federal do Pampa - Unipampa, Rio Grande do Sul, (Brasil)
  • Daniéle Nunes Stecker Universidade Federal do Pampa - Unipampa, Rio Grande do Sul, (Brasil)
  • Daniela Martins de Fausto Centro Universitário Adventista de São Paulo - UNASP, São Paulo, (Brasil)
  • Antonio Adolfo Mattos de Castro Universidade Federal do Pampa - Unipampa, Rio Grande do Sul, (Brasil)

DOI:

https://doi.org/10.19141/2237-3756.lifestyle.v11.n00.pe1419

Keywords:

Neurocritical patients, Ventilatory mechanics, Pressure controlled ventilation, Volume controlled ventilation, Pressure regulated and volume controlled ventilation

Abstract

Objectives: Compare volume controlled (VCV), pressure controlled (PCV) and pressure regulated and volume controlled (PRVC) ventilation modes in relation to ventilatory mechanics in neurocritical patients admitted to an ICU setting.

Methods: Sixteen patients were recruited, they had mean age of 56.1±19.7, had 12.6±9.1 days of hospital length of stay, with 81.2% overall survival. Three groups used different ventilatory modalities: PRVC, PCV and VCV. Patients were ventilated for a tidal volume of 6 to 8 ml/Kg, Glasgow, RASS, PAM, FC, f, FiO2, PEEP, pressure, volume or support pressure, Ppico, Cd, Wr, P0.1, pH, PaCO2, PaO2, HCO3 and SaO2 were measured.

Results: We did not find differences between the initial and final values and between the groups regarding ventilatory mechanics of the 16 patients on mechanical ventilation admitted to the ICU. We found a correlation between respiratory work and peak pressure (r = 0,87; p = 0,02), expiratory resistance and peak pressure (r = 0,91; p = 0,01), static compliance and elastance (r = -0,81; p = 0,04) and work of breathing and inspiratory resistance (r = 1,0, p = 0,003), in the PRVC mode; correlation between peak pressure and dynamic compliance (r = -0,91, p = 0,03) and work of breathing and elastance (r = -0,90, p = 0,03) in the PCV mode; correlation between elastance and static compliance (r = -0,97, p = 0,004) and PaO2/FiO2 ratio and work of breathing (r = 0,99, p = 0,02) in the VCV mode.

Conclusions: There is no difference in ventilatory mechanics parameters when neurocritical patients were mechanically ventilated in PRVC, PCV and VCV modes.

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Author Biography

Antonio Adolfo Mattos de Castro, Universidade Federal do Pampa - Unipampa, Rio Grande do Sul, (Brasil)

Doutor em Medicina (Pneumologia) pela Universidade Federal de São Paulo - UNIFESP, São Paulo, (Brasil). Professor adjunto da Universidade Federal do Pampa - Unipampa, Rio Grande do Sul, (Brasil).

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Published

2024-02-19

How to Cite

dos Santos Martins, G., Nunes Stecker, D., Martins de Fausto, D., & Mattos de Castro, A. A. (2024). Respiratory mechanics analysis in neurocritical patients admitted to a general icu ventilated in prvc, pcv and vcv modes. Journal of Interdisciplinary Lifestyle Studies, 11(00), e1419. https://doi.org/10.19141/2237-3756.lifestyle.v11.n00.pe1419
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