Abstract
Glucocorticoid-induced myopathy is a non-inflammatory toxic myopathy typified by
proximal muscle weakness, muscle atrophy, fatigue, and easy fatigability. These
vague symptoms coupled with underlying disorders may mask the signs of
glucocorticoid-induced myopathy, leading to an underestimation of the disease’s
impact. This review briefly summarizes the classification, pathogenesis, and
treatment options for glucocorticoid-induced muscle wasting. Additionally, we
discuss current diagnostic measures in clinical research and routine care used
for diagnosing and monitoring glucocorticoid-induced myopathy, which includes
gait speed tests, muscle strength tests, hematologic tests, bioelectrical
impedance analysis (BIA), dual-energy X-ray absorptiometry (DXA), computed
tomography (CT), magnetic resonance imaging (MRI), electromyography,
quantitative muscle ultrasound, histological examination, and genetic analysis.
Continuous monitoring of patients receiving glucocorticoid therapy plays an
important role in enabling early detection of glucocorticoid-induced myopathy,
allowing physicians to modify treatment plans before significant clinical
weakness arises.
Keywords
glucocorticoids - glucocorticoid-induced myopathy - diagnostic measures - muscle