Participants represented urban (23%) and rural (77%) practices; as well as office/clinic (31%) hospital (62%) and mixed (7%) practice settings. Both Masters (62%) and Doctoral prepared (38%) CRNAs participated. Their experience in performing fluoroscopic guided LESIs ranged from 1 to 17 years and 50 to 12,000 procedures. Rate of occurrence for each complication was below 1%. Participants had higher rates of bruising and vasovagal reactions than other complications. No paralysis or death occurred. Neither practice setting nor experience level was related to complication rates. Participants expressed interest in participating in additional studies of complication rates.