Analgesic Efficacy of Intermediate Cervical Plexus Block in Patients Undergoing Neck Surgeries: A Comparison Between Two Bupivacaine Concentrations

"ICPB technique The patient's head will be rested on a pillow and turned to the opposite side. A linear probe with higher frequencies will be placed transversely over the midpoint of the SCM muscle. The carotid artery will be identified and traced upwards to its bifurcation. the probe will be then moved laterally to identify the tapering posterolateral end of the SCM muscle. Via an in-plane technique, a 22-gauge, 50 mm needle will be advanced underneath the investing fascia of SCM muscle and above the interscalene groove until feeling the pop on piercing the investing fascia. The patient will be then randomly allocated into two groups (H \& L) using computer-generated random numbers that will be concealed in opaque envelopes. Group H will receive 10 ml 0.25 % bupivacaine he technique will be repeated on the opposite side"

"ICPB technique The patient's head will be rested on a pillow and turned to the opposite side. A linear probe with higher frequencies will be placed transversely over the midpoint of the SCM muscle. The carotid artery will be identified and traced upwards to its bifurcation. the probe will be then moved laterally to identify the tapering posterolateral end of the SCM muscle. Via an in-plane technique, a 22-gauge, 50 mm needle will be advanced underneath the investing fascia of SCM muscle and above the interscalene groove until feeling the pop on piercing the investing fascia. The patient will be then randomly allocated into two groups (H \& L) using computer-generated random numbers that will be concealed in opaque envelopes. Group L will receive 10 ml 0.125% bupivacaine. The technique will be repeated on the opposite side"