فهرست نشریات علمی دسترسی آزاد ایران

Background and Objectives: Carpal tunnel syndrome (CTS) is among the prevalent peripheral nerve compression syndromes with various non-surgical treatment options for mild to moderate cases, including local steroid injection guided by ultrasound. This study investigated the effects of ultrasound-guided local steroid injection in one wrist of patients with bilateral moderate CTS on the opposite wrist.   Methods: A case series was conducted to assess the impact of local steroid injection guided by ultrasound in one wrist of patients with bilateral moderate CTS, focusing on its effects on the opposite wrist. The study included patients referred to the physical medicine and rehabilitation department of Baqiyatallah Hospital in 2022 with bilateral moderate CTS. Triamcinolone and lidocaine were locally injected under ultrasound guidance into the dominant wrist. The injection procedure involved hydrodissection of the median nerve. Subsequently, a wrist splint (Cock up) was prescribed for the dominant wrist. Clinical symptoms were evaluated using the Boston Questionnaire and Visual Analog Scale (VAS), while electrophysiological findings such as median compound nerve action potential (CNAP), sensory nerve action potential (SNAP) latency, and compound muscle action potential (CMAP) latency were assessed in the opposite wrist one month post-treatment.   Results: The study consisted of thirty patients, with an average age of 52.73 ± 8.09 years, including 76.7% female and 23.3% male participants. Following the injection, a significant decrease in BCTQ scores and pain levels was observed in both the dominant and opposite wrists (P < 0.001). Furthermore, median nerve distal motor latency (DML), distal sensory latency (DSL), and CNAP latency exhibited a significant reduction in both wrists after injection compared to before treatment (P < 0.001).   Conclusion: Ultrasound-guided local steroid injection in patients with CTS showed improvements in clinical symptoms and pain reduction in one wrist in the short-term, as well as enhanced electrophysiological findings in both wrists.