Safety of Ultrasound-guided supraclavicular block: A retrospective analysis of consecutive case over a 4- year period in a teaching institution
after institutional review board approval, the outcome data of consecutive patients who received an ultrasound-guided supraclavicular block for upper extremity surgery over a 4 year period will be reviewed.
Data will be collected retrospectively from the existing data base in the medical records and the eMR (electronic medical record). The data collection will include demographic data: age, wt., height, sex etc. The data collection will also include past surgical experience, medical and surgical history, successful surgical anesthesia, number of attempts, required local anesthetic supplementation of a single peripheral nerve territory, number of unplanned general anesthetic, incidence of pneumothorax, seizures, local anesthetic toxicity, and nerve damage. other complications such as symptomatic hemidiaphragmatic paresis, Horner syndrome, unintended vascular punctures, and transient sensory and permanent nerve deficits will also be recorded.
All consecutive patients who received ultrasound-guided supraclavicular block for vascular or trauma procedures of the hand or forearm between 18-75 years of age will be included. English or Spanish speaking patients of all ethnic background with an ASA risk of grade I - IV will be included in this retrospective study.