Longitudinal Ultrasound Monitoring of Peripheral Muscle Loss in Neurocritical Patients

Area of Science:

• Neurology
• Intensive Care Medicine
• Musculoskeletal Ultrasound

Background:

• Ultrasound is a valuable tool in the intensive care unit (ICU) for real-time imaging.
• It aids in prognostic evaluation and clinical decision-making for critically ill patients.
• Muscle changes during hospitalization in neurocritical patients are not fully understood.

Purpose of the Study:

• To investigate the impact of hospitalization on muscle properties in neurocritical patients using ultrasound.
• To analyze the relationship between peripheral muscle changes and motor sequelae in this population.
• To assess changes in muscle thickness, cross-sectional area, and echogenicity.

Main Methods:

• Ultrasound assessments of biceps brachii, quadriceps femoris, and rectus femoris.
• Measurements taken during ICU admission and hospital discharge in 43 neurocritical patients.
• Statistical comparison of muscle properties between time points and between groups with/without motor sequelae.

Main Results:

• Hospitalization significantly affected muscle thickness, cross-sectional area, and echogenicity in all patients (p < 0.05).
• Patients with motor sequelae showed greater alterations in muscle echogenicity compared to those without (p < 0.05).
• Changes in muscle thickness and cross-sectional area were not significantly different between groups (p > 0.05).

Conclusions:

• Neurocritical patients undergo significant muscle deterioration during hospitalization.
• Muscle echogenicity appears more sensitive to motor sequelae than muscle thickness or cross-sectional area.
• Further research is needed to understand the mechanisms behind these differential muscle property changes.