Personalized mechanical ventilation guided by ultrasound in patients with acute respiratory distress syndrome (PEGASUS) : study protocol for an international randomized clinical trial
Sinnige, Jante S. (Universiteit van Amsterdam)
Smit, Marry R. (Universiteit van Amsterdam)
Ghose, Aniruddha (Chattogram Medical Centre)
de Grooth, Harm-Jan (Vrije Universiteit)
Itenov, Theis Skovsgaard (University of Copenhagen)
Ischaki, Eleni (University of Athens Medical School)
Laffey, John (University of Galway)
Paulus, Frederique (Universiteit van Amsterdam)
Póvoa, Pedro (University of Lisbon)
Pierrakos, Charalampos (Université Libre de Bruxelles)
Pisani, Luigi (Università degli Studi di Bari Aldo Moro)
Roca Gas, Oriol (Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Schultz, Marcus J. (University of Oxford)
Szuldrzynski, Konstanty (National Institute of Medicine of the Ministry of Interior and Administration)
Tuinman, Pieter R. (Vrije Universiteit Amsterdam)
Zimatore, Claudio (Università degli Studi di Bari Aldo Moro)
Bos, Lieuwe D. (Universiteit van Amsterdam)
Universitat Autònoma de Barcelona. Departament de Medicina

Date:	2024
Abstract:	Acute respiratory distress syndrome (ARDS) is a frequent cause of hypoxemic respiratory failure with a mortality rate of approximately 30%. Identifying ARDS subphenotypes based on "focal" or "non-focal" lung morphology has the potential to better target mechanical ventilation strategies of individual patients. However, classifying morphology through chest radiography or computed tomography is either inaccurate or impractical. Lung ultrasound (LUS) is a non-invasive bedside tool that can accurately distinguish "focal" from "non-focal" lung morphology. We hypothesize that LUS-guided personalized mechanical ventilation in ARDS patients leads to a reduction in 90-day mortality compared to conventional mechanical ventilation. The Personalized Mechanical Ventilation Guided by UltraSound in Patients with Acute Respiratory Distress Syndrome (PEGASUS) study is an investigator-initiated, international, randomized clinical trial (RCT) that plans to enroll 538 invasively ventilated adult intensive care unit (ICU) patients with moderate to severe ARDS. Eligible patients will receive a LUS exam to classify lung morphology as "focal" or "non-focal". Thereafter, patients will be randomized within 12 h after ARDS diagnosis to receive standard care or personalized ventilation where the ventilation strategy is adjusted to the morphology subphenotype, i. e. , higher positive end-expiratory pressure (PEEP) and recruitment maneuvers for "non-focal" ARDS and lower PEEP and prone positioning for "focal" ARDS. The primary endpoint is all-cause mortality at day 90. Secondary outcomes are mortality at day 28, ventilator-free days at day 28, ICU length of stay, ICU mortality, hospital length of stay, hospital mortality, and number of complications (ventilator-associated pneumonia, pneumothorax, and need for rescue therapy). After a pilot phase of 80 patients, the correct interpretation of LUS images and correct application of the intervention within the safe limits of mechanical ventilation will be evaluated. PEGASUS is the first RCT that compares LUS-guided personalized mechanical ventilation with conventional ventilation in invasively ventilated patients with moderate and severe ARDS. If this study demonstrates that personalized ventilation guided by LUS can improve the outcomes of ARDS patients, it has the potential to shift the existing one-size-fits-all ventilation strategy towards a more individualized approach. The PEGASUS trial was registered before the inclusion of the first patient, (ID: NCT05492344).
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Acute respiratory distress syndrome ; Personalized medicine ; Mechanical ventilation ; Lung ultrasound
Published in:	Trials, Vol. 25 (May 2024) , art. 308, ISSN 1745-6215

DOI: 10.1186/s13063-024-08140-7
PMID: 38715118

14 p, 1.1 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Parc Taulí Research and Innovation Institute (I3PT
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