Proportional assist ventilation relieves clinically significant dyspnea in critically ill ventilated patients

Autor: Côme Bureau, Maxens Decavèle, Sébastien Campion, Marie-Cécile Nierat, Julien Mayaux, Elise Morawiec, Mathieu Raux, Thomas Similowski, Alexandre Demoule
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Annals of Intensive Care, Vol 11, Iss 1, Pp 1-11 (2021)
Druh dokumentu: article
ISSN: 2110-5820
DOI: 10.1186/s13613-021-00958-7
Popis: Abstract Introduction Dyspnea is common and often severe symptom in mechanically ventilated patients. Proportional assist ventilation (PAV) is an assist ventilatory mode that adjusts the level of assistance to the activity of respiratory muscles. We hypothesized that PAV reduce dyspnea compared to pressure support ventilation (PSV). Patients and methods Mechanically ventilated patients with clinically significant dyspnea were included. Dyspnea intensity was assessed by the Dyspnea—Visual Analog Scale (D-VAS) and the Intensive Care-Respiratory Distress Observation Scale (IC-RDOS) at inclusion (PSV-Baseline), after personalization of ventilator settings in order to minimize dyspnea (PSV-Personalization), and after switch to PAV. Respiratory drive was assessed by record of electromyographic activity of inspiratory muscles, the proportion of asynchrony was analyzed. Results Thirty-four patients were included (73% males, median age of 66 [57–77] years). The D-VAS score was lower with PSV-Personalization (37 mm [20‒55]) and PAV (31 mm [14‒45]) than with PSV-Baseline (62 mm [28‒76]) (p
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