Long-Term Outcome of Electrodiagnostic Values and Symptom Improvement After Carpal Tunnel Release: A Retrospective Cohort Study

Dağtaş, Mirza Zafer; Ünal, Ömer Kays

doi:10.1016/j.jhsa.2022.04.003

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…Previous studies categorized severity into 3 grades (1, normal to mild; 2, moderate; 3, severe), whereas our study considered 4 grades for a more detailed comparison. Earlier studies showed improvements in the Michigan Hand Outcomes Questionnaire score or subjective symptoms after surgery within each grade, but changes in the grade itself were not compared [16,17]. Other studies analyzed EDx before and after surgery, confirming that CMAP latency, amplitude, and sensory conduction velocity improved postoperatively; however, a comparative analysis of disease severity was not performed [18].…”

Section: Discussionmentioning

confidence: 99%

Electrophysiological Changes in Patients with Carpal Tunnel Syndrome after Open Carpal Tunnel Release

Song

Lee

Kim

et al. 2022

J Electrodiagn Neuromuscul Dis

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Objective: Carpal tunnel syndrome (CTS) is the most common peripheral neuropathy affecting the upper limbs. Various treatment methods exist for this disease, but only a few reports have compared the effects of various treatments using objective indicators. This study analyzed the changes in electrophysiological parameters after carpal tunnel release.Methods: In patients planning to undergo surgical treatment for CTS, electrophysiological studies, including nerve conduction studies and electromyography (EMG), of both upper extremities were performed before and 6 to 8 weeks after mini-open transverse carpal ligament release and median nerve neurolysis.Results: After surgical intervention, the onset latency and amplitude of the sensory nerve action potential (SNAP) and the onset latency of the compound muscle action potential (CMAP) of the median nerve improved. Additionally, the grade of abnormal spontaneous activity in needle EMG of the abductor pollicis brevis (APB) and the severity of the electrodiagnostic study results significantly decreased after the intervention compared to the initial evaluation.Conclusion: This study shows that the onset latency of SNAP and CMAP, the amplitude of SNAP of the median nerve, and EMG findings in the APB can be useful electrodiagnostic parameters for postoperative monitoring in CTS patients.

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Section: Discussionmentioning

confidence: 99%