A correlative electrophysiologic study of nerve fiber involvement in carpal tunnel syndrome using current perception thresholds.

Objective: To relate clinical severity of idiopathic carpal tunnel syndrome (CTS) to current perception threshold (CPT).

Methods: Subjects were 51 patients with CTS (involving 51 hands), and 50 healthy control subjects (50 hands). Involved hands were grouped into three clinical grades (mild, moderate, severe).

Objective evaluation of sensory function in patients with carpal tunnel syndrome using the current perception threshold.

The purpose of this study was to determine the sensitivity and specificity for the current perception threshold (CPT) test during clinical examination of idiopathic carpal tunnel syndrome (CTS). We studied 71 patients (102 hands) with CTS; 50 healthy individuals (100 hands) served as a control group. Using a neurometer, we investigated standard CPT values to obtain the sensitivity and specificity of the CPT test in the clinical examination of CTS.

Evaluation of sensory function after median nerve decompression in carpal tunnel syndrome using the current perception threshold test.

The recovery level for sensory function after carpal tunnel release for the treatment of idiopathic carpal tunnel syndrome (CTS) was assessed with the current perception threshold (CPT) test. Seventeen CTS patients (21 hands) were followed, and the CPTs at the index finger of each patient was measured preoperatively and at 1, 3, and 6 months postoperatively. After carpal tunnel release, there was significant recovery of CPT at all stimulation frequencies, indicating improvement of all sensory functions including sensations of temperature, pain, touch, and vibration.