Patients will be divided into 2 groups: Group P (treatment) and Group K (control).
Before anesthesia, 2-3 mL of blood will be collected by the researcher from patients in both groups using a red tube.
Patients in the control group will undergo conventional general anesthesia. Patients in the treatment group will undergo conventional general anesthesia combined with epidural anesthesia. Patients will be administered 0.25% Bupivacaine local anesthetic incrementally until the desired volume is achieved based on the targeted segmental block height.
Six hours postoperatively, 2-3 mL of blood will be collected, VAS (Visual Analog Scale) will be assessed 24 hours postoperatively, and QoR-15 (Quality of Recovery-15) will be evaluated postoperatively.
