Q: Muscle ultrasound in Critical Illness Myopathy (CIM) and Critical Illness Polyneuropathy (CIP) will show? (select one)
A) increased echogenicity
B) decreased echogenicity
Muscle ultrasound has a good prognostic value in CIM/CIP. Increased echogenicity of major muscles like biceps, forearm, or mid-thigh muscles is found to be associated with a lower chance of discharge to home. It can be a useful tool to predict CIM/CIP in ICU patients with a sensitivity of 82 percent and specificity of 57 percent.
Kelmenson DA, Quan D, Moss M. What is the diagnostic accuracy of single nerve conduction studies and muscle ultrasound to identify critical illness polyneuromyopathy: a prospective cohort study. Crit Care 2018; 22:342.