Diagnostic value of transpulmonary thermodilution measurements for acute respiratory distress syndrome in a pig model of septic shock

No direct approach assessing pulmonary vascular permeability exists in the current therapeutic strategy for patients with acute respiratory distress syndrome (ARDS). Transpulmonary thermodilution measures hemodynamic parameters such as pulmonary vascular permeability index and extravascular lung wat...

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Bibliographic Details
Published in:Journal of translational medicine 2022-12, Vol.20 (1), p.617-617, Article 617
Main Authors: Endo, Yusuke, Miyasho, Taku, Endo, Kanako, Kawamura, Yoshio, Miyoshi, Kenjiro, Takegawa, Ryosuke, Tagami, Takashi, Becker, Lance B, Hayashida, Kei
Format: Article
Language:English
Subjects:
Analysis
Animals
ARDS
Care and treatment
Complications and side effects
Critically ill
CT imaging
Diagnosis
Diagnostic criteria
Extravascular lung water
Female
Hemodynamic monitoring
Large animal study
Lung - blood supply
Lung - diagnostic imaging
Lung Injury
Methods
Oxygen
Permeability
Pulmonary Edema - complications
Pulmonary Edema - diagnosis
Pulmonary function tests
Pulmonary vascular permeability index
Respiratory distress syndrome
Respiratory Distress Syndrome - complications
Respiratory Distress Syndrome - diagnosis
Septic shock
Shock, Septic
Swine
Thermodilution - methods
Wound Infection
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Summary:No direct approach assessing pulmonary vascular permeability exists in the current therapeutic strategy for patients with acute respiratory distress syndrome (ARDS). Transpulmonary thermodilution measures hemodynamic parameters such as pulmonary vascular permeability index and extravascular lung water, enabling clinicians to assess ARDS severity. The aim of this study is to explore a precise transpulmonary thermodilution-based criteria for quantifying the severity of lung injury using a clinically relevant septic-ARDS pig model. Thirteen female pigs (weight: 31 ± 2 kg) were intubated, mechanically ventilated under anesthesia, and either assigned to septic shock-induced ARDS or control group. To confirm the development of ARDS, we performed computed tomography (CT) imaging in randomly selected animals. The pulmonary vascular permeability index, extravascular lung water, and other hemodynamic parameters were consecutively measured during the development of septic lung injury. Lung status was categorized as normal (partial pressure of oxygen/fraction of inspired oxygen ≥ 400), or injured at different degrees: pre-ARDS (300-400), mild-to-moderate ARDS (100-300), or severe ARDS (
ISSN:1479-5876
1479-5876
DOI:10.1186/s12967-022-03793-x