U.S., Sept. 17 -- ClinicalTrials.gov registry received information related to the study (NCT07174440) titled 'Contrast and Anesthetic Level With Lumbar Erector Spinae Plan (ESP) Block' on Sept. 12.

Brief Summary: As per usual care for spine surgery, participants will have their back cleaned with alcohol and a needle will be placed using ultrasound for the ESP block. Through the needle, a small catheter will be placed in the participants back and the needle removed. Approximately one hour prior to the start of surgery, a numbing medication (ropivacaine, similar to Novocaine) in combination with dexmedetomidine (a pain medicine that is used in nerve block and that is not a narcotic) and contrast dye (iohexol) will be injected through the cat...