• Francesco Mojoli, Francesca Torriglia, Anita Orlando, Isabella Bianchi, Eric Arisi, and Marco Pozzi.
• Anesthesia, Intensive Care and Pain Therapy, University of Pavia, Pavia, Italy.
• Ann Transl Med. 2018 Oct 1; 6 (19): 377.

AbstractTranspulmonary pressure, that is the difference between airway pressure (Paw) and pleural pressure, is considered one of the most important parameters to know in order to set a safe mechanical ventilation in acute respiratory distress syndrome (ARDS) patients but also in critically ill obese patients, in abdominal pathologies or in pathologies affecting the chest wall itself. Transpulmonary pressure should rely on the assessment of intrathoracic pleural pressure. Esophageal pressure (Pes) is considered the best surrogate of pleural pressure in critically ill patients, but concerns about its reliability exist. The aim of this article is to describe the technique of Pes measurement in mechanically ventilated patients: the catheter insertion, the proper balloon placement and filling, the validation test and specific procedures to remove the main artifacts will be discussed.

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