A number of adjuvants have been used with local anesthetics including dexamethasone, nalbuphine and dexmedetomidine etc with the aim of improving quality and duration of peripheral nerve blocks. Dexmedetomidine is a potent alpha-2 agonist which can prolong the duration of regional anesthesia block when used in combination with local anesthetics. Although, there is no consensus on the dose of dexmedetomidine for peripheral nerve block considering the fact that it can lower heart rate and blood pressure intraoperatively. Investigators therefore, planned this randomised controlled trial to investigate the role of 0.5 micrograms/kg of dexmedetomidine with 0.2 % ropivacaine in erector spinae block for patients undergoing lumbar spine surgeries.
The aim of this study is to investigate the role of 0.5 micrograms/kg of dexmedetomidine with 0.2 % ropivacaine in erector spinae block in reducing opioid consumption for patients undergoing lumbar spine surgeries. This study will help in understanding the role of adding dexmdetomidine to ropivacaine in erector spinae block in reducing opioid consumption after lumbar spine surgeries