In this research, doctors are testing two types of pain relief methods, called *PENG block* and *LV-ISBP block*, for people having shoulder surgery. These methods aim to reduce pain and side effects after surgery. Patients will be randomly divided into two groups to receive one of these methods before surgery. Doctors will use ultrasound, a type of imaging, to help guide the medicine to the right spot. Patients will be watched closely with heart and oxygen monitors during the procedure. Key Points: - The study will take place in a hospital and involves random assignment to one of two groups. - Participants will be evaluated before and after surgery for pain and any side effects. - This study is open to people aged 18-60 scheduled for shoulder arthroscopy, without certain health issues.
Participants will need to visit the hospital and be monitored after surgery to track the effectiveness of the pain relief methods.