Article

Patients with carpal tunnel syndrome (CTS) often report aggravated
symptoms in the early morning. In this study, we aimed to identify diurnal
variations in clinical and electrophysiologic parameters of patients with CTS.
DESIGN: A cross-sectional clinical and electrophysiologic study was designed.
First, electrophysiologic examinations were performed at 2 p.m. to confirm the
diagnosis of patients who had been clinically labeled with CTS. Patients who were
electrophysiologically and clinically diagnosed with CTS were included in the
study, and electrophysiologic examinations were repeated at 7 p.m. and 7 a.m. A
total of 64 hands with CTS (27 bilateral, 10 unilateral) and 40 control hands
were studied. Grip and pinch strength of all the patients included in the study
were measured using a hand dynamometer. Finally, a CTS clinical symptom severity
scale and functional status scale were used to measure the symptoms and
functional impairment, respectively. RESULTS: The median motor nerve distal
latency and median F-minimum latency were found to be prolonged in the CTS group
in the morning, and the grip strength was also markedly reduced at this time.
Similar results were obtained for the median palm mixed nerve conduction velocity
and amplitude. CONCLUSIONS: This study demonstrated that the clinical and
electrophysiologic parameters of CTS patients were clearly different in the
morning hours, with the symptoms of CTS manifesting at that time.

Langue : ANGLAIS