Technical issues and potential complications of nerve conduction studies and needle electromyography.

Nerve conduction studies and needle electromyography provide important and complementary information as part of an electrodiagnostic study. Potential technical problems that are encountered during the studies may interfere with accurate and reliable acquisition of information and interpretation of the data. Recognition, identification, and correction of various technical problems are critical to the reliable interpretation of any electrodiagnostic study. Both techniques are safe, but there are potential risks and complications in rare instances. This article reviews technical considerations to assist in accurate interpretation and safe performance of an electrodiagnostic study. Copyright Â