Opioid-Free anesthesia may keep blood pressure steady during brain surgery

This study compared opioid-free anesthesia (using dexmedetomidine and lidocaine) to standard opioid anesthesia in 86 adults having brain tumor surgery. The goal was to see if the opioid-free approach better controlled blood pressure during stressful moments like drilling into the skull. Researchers measured how many patients had a big blood pressure spike during the procedure.