• Journal of critical care · Feb 2022

    Observational Study

    Respiratory and peripheral muscular ultrasound characteristics in ICU COVID 19 ARDS patients.

    • P Formenti, M Umbrello, V Castagna, S Cenci, F Bichi, T Pozzi, M Bonifazi, S Coppola, and D Chiumello.
    • SC Anestesia e Rianimazione, Ospedale San Paolo - Polo Universitario, ASST Santi Paolo e Carlo, Milan, Italy. Electronic address: formenti.paolo80@gmail.com.
    • J Crit Care. 2022 Feb 1; 67: 142014-20.

    PurposeSevere cases of coronavirus disease 2019 develop ARDS requiring admission to the ICU. This study aimed to investigate the ultrasound characteristics of respiratory and peripheral muscles of patients affected by COVID19 who require mechanical ventilation.Materials And MethodsThis is a prospective observational study. We performed muscle ultrasound at the admission of ICU in 32 intubated patients with ARDS COVID19. The ultrasound was comprehensive of thickness and echogenicity of both parasternal intercostal and diaphragm muscles, and cross-sectional area and echogenicity of the rectus femoris.ResultsPatients who survived showed a significantly lower echogenicity score as compared with those who did not survive for both parasternal intercostal muscles. Similarly, the diaphragmatic echogenicity was significantly different between alive or dead patients. There was a significant correlation between right parasternal intercostal or diaphragm echogenicity and the cumulative fluid balance and urine protein output. Similar results were detected for rectus femoris echogenicity.ConclusionsThe early changes detected by echogenicity ultrasound suggest a potential benefit of proactive early therapies designed to preserve respiratory and peripheral muscle architecture to reduce days on MV, although what constitutes a clinically significant change in muscle echogenicity remains unknown.Copyright © 2021 Elsevier Inc. All rights reserved.

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