This clinical trial is focused on patients undergoing surgery for throat and neck cancer. The study aims to evaluate a specific anesthesia technique called the superficial cervical plexus block. This technique is used to reduce the amount of morphine, a pain medication, needed after surgery. The trial involves the use of two medications: sodium chloride, which is a common salt solution used in medical settings, and ropivacaine, a local anesthetic that numbs a specific area of the body.
The purpose of the study is to see if this anesthesia technique can help decrease the need for morphine during the first 24 hours after surgery. Patients participating in the study will receive either the anesthesia technique or a placebo, and their morphine use will be monitored. The study will help determine if this method is effective in managing pain after cancer surgery.
Participants will be closely monitored throughout the study to ensure their safety and well-being. The trial will provide valuable information on whether this anesthesia technique can improve pain management for patients undergoing cancer surgery in the throat and neck area.



France