Aims: It was aimed to determine the clinical differences between patients with and without electrophysiological evidence of CTS.
Methods: Patients who were clinically diagnosed with CTS included in this retrospective cohort study. Median nerve compound muscle action potential (CMAP) and compound nerve action potential (CNAP) of the patients were analyzed. Clinically diagnosed CTS patients were divided into two groups acording to the results of nerve conduction studies as patiets with and without electrophysiological evidence of CTS. Also all patiets’ age, weight, body mass index, symptom duration and comorbidity were recorded.
Results: 60 patients with clinically diagnosed with CTS (52 women and 8 men) were included in the study. Electrophysiological evidence of CTS was present in 40 patients (66.7%) and absent in 20 (33.3%). Demographic characteristics, duration of symtoms and comorbidity of patients with and without electrophysiological CTS are compared.
Conclusion: Electrophysiological studies may not detect CTS in all patients, particularly in those who are younger, have a shorter duration of symptoms, and a lower body mass index.