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. 2023 Jun;68(6):773-776.
doi: 10.4187/respcare.10261. Epub 2023 Apr 25.

Electrical Impedance Tomographic Mapping of Hypoventilated Lung Areas in Intubated Patients With COVID-19

Débora S Caetano  1 , Caio Ca Morais  1   2 , Wagner S Leite  1 , Rômulo de Aquino C Lins  1 , Kyle J Medeiros  3 , Rodrigo A Cornejo  4 , Armèle Dornelas de Andrade  1 , Shirley L Campos  1 , Daniella C Brandão  5
Affiliations

Electrical Impedance Tomographic Mapping of Hypoventilated Lung Areas in Intubated Patients With COVID-19

Débora S Caetano et al. Respir Care. 2023 Jun.
No abstract available

Keywords: COVID-19; acute respiratory distress syndrome; electrical impedance tomography; morphofunctional classification.; phenotype; precision medicine.

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Figures

Fig. 1.
Fig. 1.
A: Illustration of the distribution of hypoventilated regions patterns detected by electrical impedance tomography (EIT): pattern 1, preserved bilateral dorsal ventilation (ZVLR+ZVLL > 40%); pattern 2, bilateral dorsal hypoventilation (ZVLR+ZVLL < 40%); pattern 3, unilateral dorsal hypoventilation (ZVLR or ZVLL < 20%); and pattern 4, unilateral hypoventilation (ZVUR+ZVLR or ZVUL+ZVLL < 40%). The color scale of the EIT image was normalized by the sum of the impedance values within the lung area (the lighter the blue, the greater the regional ventilation). B: Respiratory-system compliance (CRS) normalized by predicted body weight. C: PaO2/FIO2 according to the hypoventilation pattern. Box plots in panels B and C express median, 25% and 75% quartiles, minimum and maximum, and outliers (>1.5 interquartile length values).
See this image and copyright information in PMC

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