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Acute respiratory distress syndrome (ARDS) is a syndromic definition of an acute lung injury with alteration of biomechanics (lower respiratory system compliance) mostly associated with increased lesional edema. Increase in Pulmonary Vascular Permeability Index (PVPI) accompanied with accumulation of excess Extravascular Lung Water (EVLW) is the hallmark of ARDS. In routine clinical practice, the investigators measure the EVLW and PVPI in ARDS patients, as suggested by expert's recommendations, using a transpulmonary thermodilution (TPTD) technique.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a newly recognized illness that has spread rapidly throughout Wuhan (Hubei province) to other provinces in China and around the world. Most critically ill patients with SARS-CoV-2 will present the criteria for the definition of ARDS. However, many of these patients have a particular form of ARDS with severe hypoxemia often associated with near normal respiratory system compliance. This combination is almost never seen in severe ARDS. Thus other mechanisms (including probably vascular mechanisms), that are still poorly described, have to be involved in SARS-CoV-2.
EVLW and PVPI have never been assessed in SARS-CoV-2 mechanically ventilated patients. The aim of this study is to evaluate these two parameters in order to best characterize and understand the mechanisms related to SARS-CoV-2.
Based on observation of several cases in intensive care units (ICU), the investigators hypothesize that there are following different SARS-CoV-2 patterns:
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| Measure | Description | Time Frame |
|---|---|---|
| Changes of Extra Vascular Lung Water | EVLW (ml/kg) measured by a PiCCO device using TPTD thermodilution | Since intubation at day 0 and measured repetitively by 6 hours until day 3 |
| Measure | Description | Time Frame |
|---|---|---|
| Changes of Pulmonary Vascular Permeability Index | PVPI measured by a PiCCO device using TPTDventilation, duration of ICU length of stay, ICU mortality | Since intubation at day 0 and measured repetitively by 6 hours until day 3 |
| Changes of pulmonary compliance |
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Inclusion criteria:
Exclusion criteria:
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COVID-19 critically ill patients
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| Name | Affiliation | Role |
|---|---|---|
| Kada KLOUCHE, MD PhD | UH Montpellier | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Uhmontpellier | Montpellier | 34295 | France |
NC
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| ID | Term |
|---|---|
| D000086382 | COVID-19 |
| D011014 | Pneumonia |
| D012128 | Respiratory Distress Syndrome |
| ID | Term |
|---|---|
| D011024 | Pneumonia, Viral |
| D012141 | Respiratory Tract Infections |
| D007239 | Infections |
| D014777 | Virus Diseases |
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Changes of pulmonary compliance (ml/mmHg) |
| Since intubation at day 0 and measured repetitively by 6 hours until day 3 |
| D018352 |
| Coronavirus Infections |
| D003333 | Coronaviridae Infections |
| D030341 | Nidovirales Infections |
| D012327 | RNA Virus Infections |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D012120 | Respiration Disorders |