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Quantitative-analysis of computed tomography in COVID-19 and non COVID-19 ARDS patients: A case-control study.
Chauvelot, Louis; Bitker, Laurent; Dhelft, François; Mezidi, Mehdi; Orkisz, Maciej; Davila Serrano, Eduardo; Penarrubia, Ludmilla; Yonis, Hodane; Chabert, Paul; Folliet, Laure; David, Guillaume; Provoost, Judith; Lecam, Pierre; Boussel, Loic; Richard, Jean-Christophe.
  • Chauvelot L; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France.
  • Bitker L; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France; Université de Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621, 7 Avenue Jean Cape
  • Dhelft F; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France; Université de Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621, 7 Avenue Jean Cape
  • Mezidi M; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France; Université de Lyon, Université Claude Bernard Lyon 1, 43 boulevard du 11 Novembre 1918, 69622 Villeurbanne, Cedex, France.
  • Orkisz M; Université de Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621, 7 Avenue Jean Capelle, 69621 Villeurbanne, France.
  • Davila Serrano E; Université de Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621, 7 Avenue Jean Capelle, 69621 Villeurbanne, France.
  • Penarrubia L; Université de Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621, 7 Avenue Jean Capelle, 69621 Villeurbanne, France.
  • Yonis H; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France.
  • Chabert P; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France.
  • Folliet L; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France.
  • David G; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France.
  • Provoost J; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France.
  • Lecam P; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France.
  • Boussel L; Université de Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621, 7 Avenue Jean Capelle, 69621 Villeurbanne, France; Service de Radiologie, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 L
  • Richard JC; Service de Médecine Intensive Réanimation, Hôpital De La Croix Rousse, Hospices Civils de Lyon, 93 grande rue de la Croix-Rousse, 69004 Lyon, France; Université de Lyon, Université Claude Bernard Lyon 1, INSA-Lyon, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, F-69621, 7 Avenue Jean Cape
J Crit Care ; 60: 169-176, 2020 12.
Article in English | MEDLINE | ID: covidwho-710098
ABSTRACT

PURPOSE:

The aim of this study was to assess whether the computed tomography (CT) features of COVID-19 (COVID+) ARDS differ from those of non-COVID-19 (COVID-) ARDS patients. MATERIALS AND

METHODS:

The study is a single-center prospective observational study performed on adults with ARDS onset ≤72 h and a PaO2/FiO2 ≤ 200 mmHg. CT scans were acquired at PEEP set using a PEEP-FiO2 table with VT adjusted to 6 ml/kg predicted body weight.

RESULTS:

22 patients were included, of whom 13 presented with COVID-19 ARDS. Lung weight was significantly higher in COVID- patients, but all COVID+ patients presented supranormal lung weight values. Noninflated lung tissue was significantly higher in COVID- patients (36 ± 14% vs. 26 ± 15% of total lung weight at end-expiration, p < 0.01). Tidal recruitment was significantly higher in COVID- patients (20 ± 12 vs. 9 ± 11% of VT, p < 0.05). Lung density histograms of 5 COVID+ patients with high elastance (type H) were similar to those of COVID- patients, while those of the 8 COVID+ patients with normal elastance (type L) displayed higher aerated lung fraction.
Subject(s)
Keywords

Full text: Available Collection: International databases Database: MEDLINE Main subject: Respiratory Distress Syndrome / Image Processing, Computer-Assisted / Tomography, X-Ray Computed / COVID-19 Type of study: Cohort study / Observational study / Prognostic study Limits: Adult / Aged / Female / Humans / Male / Middle aged Language: English Journal: J Crit Care Journal subject: Critical Care Year: 2020 Document Type: Article Affiliation country: J.jcrc.2020.08.006

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Respiratory Distress Syndrome / Image Processing, Computer-Assisted / Tomography, X-Ray Computed / COVID-19 Type of study: Cohort study / Observational study / Prognostic study Limits: Adult / Aged / Female / Humans / Male / Middle aged Language: English Journal: J Crit Care Journal subject: Critical Care Year: 2020 Document Type: Article Affiliation country: J.jcrc.2020.08.006