The goal of this clinical trial is to learn whether an ultrasound-guided serratus posterior superior intercostal plane block (SPSIP block) can lower the need for opioid pain medicine after breast reduction surgery.
The main question it aims to answer is: Does adding an SPSIP block to standard anesthesia and pain treatment lower opioid use during the first 24 hours after surgery? Researchers will compare participants who receive standard anesthesia and pain treatment with participants who receive standard anesthesia and pain treatment plus an SPSIP block.
Participants will:
* Have planned bilateral breast reduction surgery under general anesthesia * Be randomly assigned to the SPSIP block group or the control group * Receive standard local anesthetic infiltration during surgery and standard pain treatment after surgery * Have their pain score and pain medicine use recorded during the first 24 hours after surgery * Be followed for safety and complications for 30 days after surgery
Female participants aged 18 to 65 years
Scheduled for elective bilateral reduction mammaplasty
Planned surgery under general anesthesia
American Society of Anesthesiologists physical status class I to III
Known allergy or hypersensitivity to local anesthetic drugs
Contraindication to regional anesthesia or fascial plane block
Coagulopathy or clinically significant bleeding disorder
Use of anticoagulant or antiplatelet medication that prevents safe block application