The purpose of study is to compare the success rate of infraclavicular block by both sonography and nerve stimulations methods concurrently and each alone.
This study is non-random, double blind and without control or placebo that is run at one center and the patients who are persenting to Shohada Ashayer hospital and are going undergo elective surgery of forearm, elbow,wrist and hand with infraclavicular nerve block And was chosen by simple non-random method that randomly divided into three groups: Sonography, nerve stimulation, sonography and nerve stimulation
Inclusion criteria:patients aged 18-85 years, I and III classes of ASA(ps-1 & ps-3), consent to participate in the project.
Exclusion criteria: patients with allergies to anesthesia, local infection at injection site and coagulopathy, neurological disorders in upper limb ends, recognizable psychotic disorders, cognitive disorders, drug abuse background, long- term use of epioids, severe cardiopulmonary, diabetes, recognized neuropathy, dissatisfaction to participate in the project.Sample size was 90 people.
Success rate of infraclavicular block by both sonography and nerve stimulation methods concurrently and each alone. The primary outcome quick start of numbness.