ArticleCurrent neuropharmacology2026
Assessment Value of Electromyography for Bortezomib-Related Peripheral Neuropathy.
Article in Current neuropharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionThis study investigates the relationship between National Cancer Institute Common Terminology Criteria (NCI-CTC) for grading bortezomib-induced peripheral neuropathy (BIPN) and objective motor/sensory nerve dysfunctions assessed by nerve conduction studies (NCS). It also evaluates the correlation between specific nerve conduction abnormalities and progression- free survival (PFS).
methodsThirty-three patients with multiple myeloma developing peripheral neuropathy during bortezomib treatment were enrolled. Participants were grouped based on NCI-CTC toxicity scores (< 2, n=17; ≥ 2, n=16). Comprehensive NCS were performed, assessing compound muscle action potentials (CMAP), motor conduction velocities (MCV), sensory nerve action potentials (SNAP), and sensory conduction velocities (SCV) across ulnar, median, tibial, peroneal, sural, and superficial peroneal nerves. Correlation analyses were used to examine the association between NCS parameters and PFS.
resultsPatients with higher NCI-CTC grades (≥ 2) exhibited significant reductions in motor and sensory nerve conduction parameters. Notably, the peroneal nerve showed significant decreases in CMAP (p=0.0059) and MCV (p=0.0223). The superficial peroneal nerve displayed a significant reduction in SCV (p=0.0189). A strong positive correlation was found between median nerve SNAP and longer PFS (r=0.558, p=0.001). DISCUSSION: The findings indicate that higher clinical grades of BIPN (NCI-CTC ≥ 2) are associated with objective neurophysiological evidence of worsened nerve function, with the peroneal nerve being particularly affected. The correlation between median nerve SNAP and PFS suggests that NCS parameters could potentially serve as prognostic markers in patients with BIPN.
conclusionBortezomib-induced neurotoxicity leads to significant impairments in both motor and sensory nerve conduction. Median nerve SNAP shows promise as a predictor for PFS, underscoring the potential value of NCS in monitoring neurotoxicity and guiding clinical management in patients receiving bortezomib.
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