Diaphragm echodensity in mechanically ventilated patients: a description of technique and outcomes.

ABSTRACT:

Background

Acute increases in muscle sonographic echodensity reflect muscle injury. Diaphragm echodensity has not been measured in mechanically ventilated patients. We undertook to develop a technique to characterize changes in diaphragm echodensity during mechanical ventilation and to assess whether these changes are correlated with prolonged mechanical ventilation.

Methods

Diaphragm ultrasound images were prospectively collected in mechanically ventilated patients and in 10 young healthy subjects. Echodensity was quantified based on the right-skewed distribution of grayscale values (50th percentile, ED50; 85^th percentile, ED85). Intra- and inter-analyzer measurement reproducibility was determined. Outcomes recorded included duration of ventilation and ICU compli

SUBMITTER: Coiffard B 

PROVIDER: S-EPMC7884870 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature