Reliability of bedside ultrasound of limb and diaphragm muscle thickness in critically ill children

Muscle & Nerve
Kay W P NgCraig M Zaidman

Abstract

We evaluated the reliability of measuring muscle thickness with ultrasound in limbs and diaphragms of critically ill children and determined the sensitivity of these measures to quantitate muscle atrophy over time. An expert and trained novice sonographers prospectively measured limb and diaphragm muscle thickness in 33 critically ill children. Expert and novice intrarater and interrater reliability were similar. Intraclass correlations (ICC) and coefficients of variation (CoV) were better in limbs (ICC > 0.9; CoV 3.57%-5.40%) than in diaphragm (ICC > 0.8; CoV novice 11.88%, expert, 12.28%). Mean relative difference in all muscles was small (1%-8%). Limits of agreement of the relative difference were smaller in limb (<13%-18%) than in diaphragm (<38%) muscles. Muscle thickness is reliably measured with ultrasound by trained examiners in critically ill children. Our approach detects atrophy >13% in limb and >38% in diaphragm muscles. The smaller detectable change in limb muscles is likely due to their greater thickness. Muscle Nerve 59:88-94, 2019.

References

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Citations

Dec 27, 2019·Current Opinion in Critical Care·Martin Dres, Alexandre Demoule
Mar 30, 2020·Indian Journal of Pediatrics·Nitin Dhochak, Rakesh Lodha
Sep 18, 2020·Pediatric Pulmonology·Sabyasachi MistriRakesh Lodha
Dec 16, 2020·Photoacoustics·Alexandra L WagnerFerdinand Knieling
Aug 7, 2021·Clinical Nutrition : Official Journal of the European Society of Parenteral and Enteral Nutrition·Ruane S de FigueiredoTiago H de Souza

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