Small Nerve Fiber Activity in Patients with Carpal Tunnel Syndrome Assessed Via Quantitative Sensory Testing

The diagnosis of carpal tunnel syndrome (CTS) is typically based on clinical findings and confirmatory electrodiagnostic testing. However, electrodiagnostic testing can only assess large A-alpha and A-beta nerve fibers. Quantitative sensory testing (QST) is a series of tests used to assess small nerve fiber changes in the A-delta, c-fibers, and A-beta nerve fibers as well. Previous studies have used QST to assess small nerve fiber changes related to carpal tunnel syndrome and found changes compared to controls. This study will utilize a course of standard physical therapy care and assess for any changes to small nerve fiber activity and how those changes may or may not relate to patient outcomes.