US-Guided Superficial Cervical Plexus Block

Comparison Between Ultrasound-Guided and Landmark-Based Superficial Cervical Plexus Block：A Retrospective Observational Study

This retrospective observational study compare ultrasound-guided plane and landmark-based superficial cervical plexus block

Traditionally, the superficial cervical plexus is blocked using a subcutaneous infiltration of local anesthetics along the posterior border of the sternocleidomastoid muscle.Recently, ultrasound has been used to identify intermuscular planes to carry out transversus abdominis plane and obturator nerve blocks.Thus, to validate this new method, the investigators conducted a retrospective observational study comparing ultrasound and the conventional landmark-based technique for superficial cervical plexus.

Inclusion Criteria:

• Undergoing surgery of the shoulder and clavicle
• Urgent or planned surgery

Exclusion Criteria:

• Refused to sign informed consent
• Pregnant women
• Allergic to the local anesthetic