Effects of SCALP Block on Postoperative Analgesia in Craniotomy Surgery

After the surgical procedure, patients in Group S were placed in a semi-sitting position. Following skin antisepsis with 5% povidone-iodine, a sterile drape was applied. A circumferential scalp block with 2 cc of 0.25% bupivacaine was done on each of the supraorbital, supratrochlear, zygomaticotemporal, auriculotemporal, greater occipital, and lesser occipital nerves that supply the forehead and scalp with sensory information. The procedure was performed bilaterally. The supratrochlear and supraorbital nerves were blocked at the brow, close to the upper middle edge orbit, and over the supraorbital notch that could be felt. The zygomaticotemporal nerve was blocked between the posterior edge of the zygomatic arch. The auriculotemporal nerve was blocked at the level of the tragus. The greater and lesser occipital nerves were blocked at the medial and lateral thirds of the superior nuchal line.