References in periodicals archive ?
Exclusion criteria are patients not willing for the study, ASA Grade III and IV, cardiac patients, known sensitivity to local anesthetics, local infection at the site of injection, coagulopathy and congenital abnormalities of lower spine.
Although some physicians adopted the other extreme of not using any anesthetics, local anesthesia is simple, can be done in the outpatient setting and has reduced risk compared with general anesthesia or conscious sedation.