BlogWhat the science says

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What is Tidal Volume ?

Proper management of Tidal Volume (Vt) is crucial to ensure safe and effective manual ventilation during cardiopulmonary resuscitation (CPR). A recent study demonstrated that optimizing tidal volume can significantly impact patient outcomes. Specifically, an optimal tidal volume has been associated with a threefold increase in survival rates and a fourfold increase in the number of patients discharged from the hospital with positive neurological outcomes.
But what exactly is tidal volume ?

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Inspiratory Pressure and Lung Pressure

Many devices offer the capability to monitor inspiratory pressure during manual ventilation. But what exactly is inspiratory pressure? Is it a reliable indicator of the volume of gas reaching the lungs with each insufflation?

Bibliographic references

(1) Bag-Valve-Mask Ventilation and Survival From Out-of-Hospital Cardiac Arrest: A Multicenter Study.

Idris, A. H., Aramendi Ecenarro, E., Leroux, B., Jaureguibeitia, X., Yang, B. Y., Shaver, S., Chang, M. P., Rea, T., Kudenchuk, P., Christenson, J., Vaillancourt, C., Callaway, C., Salcido, D., Carson, J., Blackwood, J., & Wang, H. E. (2023). Bag-Valve-Mask Ventilation and Survival From Out-of-Hospital Cardiac Arrest: A Multicenter Study. Circulation, 148(23), 1847–1856. https://doi.org/10.1161/CIRCULATIONAHA.123.065561

(2) Ventilation feedback device for manual ventilation in simulated respiratory arrest: a crossover manikin study.

(2)Khoury, A., De Luca, A., Sall, F. S., Pazart, L., & Capellier, G. (2019). Ventilation feedback device for manual ventilation in simulated respiratory arrest: a crossover manikin study. Scandinavian journal of trauma, resuscitation and emergency medicine, 27(1), 93. https://doi.org/10.1186/s13049-019-0674-7

(3) Are instructors correctly gauging ventilation competence acquired by course attendees?

(3) D’Agostino, F., Agrò, F. E., Petrosino, P., Ferri, C., & Ristagno, G. (2024). Are instructors correctly gauging ventilation competence acquired by course attendees?. Resuscitation, 200, 110240. https://doi.org/10.1016/j.resuscitation.2024.110240