An interventional study of steroid injection in Carpal Tunnel Syndrome, sponsored by Taipei Veterans General Hospital, Taiwan. Status unknown at 1 site in Taiwan. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2017-04-27.
Sponsored by Taipei Veterans General Hospital, Taiwan · Not applicable, Interventional, and Treatment
The objective of this study was to assess sonographic changes of the median nerve after steroid injection for carpal tunnel syndrome.
Patients with CTS were recruited. The Boston Questionnaire (BQ) was administered and ultrasonographic and electrophysiological examinations were performed before and at two, six, and 12 weeks after steroid injection. Cross sectional area (CSA) was measured at 2 levels: at the tunnel inlet and in the mid-carpal tunnel. Flattening ratio (FR) was measured only in the mid-carpal tunnel. Correlation analyses between baseline ultrasonography, BQ, and electrophysiological measures were performed.
605 studies on the registry are indexed under Carpal Tunnel Syndrome; 138 are open to participants now.
This study's planned enrollment of 54 is close to the median of 60 across 457 interventional studies indexed under Carpal Tunnel Syndrome.
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Exclusion Criteria:
ultrasound-guided steroid injection using 1ml of 10 mg (10mg/ml) triamcinolone acetonide
Drug: steroid injection
ultrasound-guided steroid injection using 1ml of 10 mg (10mg/ml) triamcinolone acetonide
Also known as: triamcinolone acetonide
Cross sectional area
The CSA of the median nerve was measured at 2 levels: at the carpal tunnel inlet (CSA-I; immediately prior to the proximal margin of the flexor retinaculum) and in the mid-carpal tunnel (CSA-M; at the level of the pisiform bone and scaphoid tubercle)
Time frame: 12 weeks
flattening ratio
The flattening ratio was measured only at the mid-tunnel (FR-M). FR was calculated by dividing the horizontal diameter of the nerve by the vertical diameter.
Time frame: 2, 6, 12 weeks
Boston Carpal Tunnel Questionnaire (BQ)
The BQ was interviewed-administered to assess the severity of symptoms and functional status.
Time frame: 2, 6, 12 weeks
Median nerve distal motor latency
the CMAPs were obtained via surface electrodes placed on the abductor pollicis brevis muscle. The active recording electrode was placed on the muscle belly, and the reference electrode was placed on the tendon insertion. The median nerve was stimulated 8 cm proximal to the active recording electrode. Distal motor latencies were measured from the onset of stimulus artifact to the onset of the CMAP
Time frame: 2, 6, 12 weeks
sensory nerve conduction velocity
SNAPs were obtained using an antidromic method and recorded by surface electrodes placed at the proximal and distal interphalangeal joints of the index finger for the median nerve and the same joints of the little finger for the ulnar nerve. The median nerves were stimulated at the wrist at a distance of 14 cm from the wrist to the active electrode. Distal sensory latencies were measured from the onset of the stimulus artifact to the onset of the SNAP. SNCV was calculated dividing the distance of 14 cm by the distal sensory latency.
Time frame: 2, 6, 12 weeks
compound muscle action potential amplitude (CMAP)
the CMAPs were obtained via surface electrodes placed on the abductor pollicis brevis muscle. The active recording electrode was placed on the muscle belly, and the reference electrode was placed on the tendon insertion. The median nerve was stimulated 8 cm proximal to the active recording electrode. The amplitude of CMAP were measured from baseline to negative peak.
Time frame: 2, 6, 12 weeks
sensory nerve action potential amplitudes.
SNAPs were obtained using an antidromic method and recorded by surface electrodes placed at the proximal and distal interphalangeal joints of the index finger for the median nerve and the same joints of the little finger for the ulnar nerve. The median nerves were stimulated at the wrist at a distance of 14 cm from the wrist to the active electrode. The amplitude of SNAP were measured from baseline to negative peak.
Time frame: 2, 6, 12 weeks
This study is status unknown, as verified in Feb 2017. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Steroids
Taipei Veterans General Hospital, Taiwan →