P-NE016. An overview of nerve conduction study in carpal tunnel syndrome patients in Sanglah general hospital during 2018-2019

Abstract

Introduction. Carpal tunnel syndrome (CTS) is the most common nerve entrapment. Electrodiagnostic (EDX) studies are a valid and reliable method of confirming the diagnosis. CTS will likely continue to be a common problem encountered by the electrodiagnostician. The purpose of this study was to compare the diagnostic accuracy of various nerve conduction tests and to determine the properties of the most accurate test.Methods. This was a descriptive cross sectional study conducted at the neurologic policlinic at Sanglah Hospital from January 2018 to Desember 2019. Sixty six patient with clinical symptom of CTS were included within the study period.Results. From 66 patients, women were 72.7% with the largest age group (42.4%) in the elderly, range 46-55 years. Elongation of the SNAP median nerve latency was in 74.2% of patients. Lengthening of the CMAP median nerve latency was in 66.7% of patients. Median– Ulnar Sensory Latency Difference to the Ring Finger ≥0.4 in 78.8% of patients.Conclusion. Addition of a single test of median and ulnar sensory latency difference to the ring finger in routine protocol will improve the sensitivity for the diagnosis of CTS in all patients.