After-effect of microneurography in humans. Part IV.

Twenty subjects were followed up to three months after microneurographic recording of sympathetic nerve fiber activity to determine the nature and incidence of sequelae to the invasive microneurographic procedure. Skin or muscle parethesias lasting two weeks on the average were reported by the majority of subjects. Nine percent of the subjects also reported mild muscle weakness lasting two to four weeks. One subject reported skin paresthesias lasting up to three months postrecording. There was no incidence of permanent nerve injury.