Upper Trunk Block Versus Costoclavicular Block For Arthroscopic Shoulder Surgery

Exclusion Criteria

• •1. Patients who refuse to participate in the study,
• •2. Pre-existing (obstructive or restrictive) lung disease,
• •3. Coagulopathy,
• •4. Sepsis,
• •5. Hepatic or renal insufficiency,
• •6. Pregnancy
• •7. Allergy to local anesthetic drugs,
• •8. Chronic pain condition requiring opioid intake at home,
• •9. Surgery in the neck or infraclavicular region
• •10. BMI above 40.
• •11. History of psychiatric diseases needing treatment.
• •12. Failure of nerve block performed in the preoperative block room
• •13. Substance abuse history