Comparison of Combined (Superficial and Deep) and Isolated Deep Serratus Anterior Plane Blocks After Breast Surgery

The main purpose of this study is to compare the effectiveness of two different regional anesthesia techniques for pain management after oncological breast surgeries. The researchers will compare the combined (superficial and deep) serratus anterior plane block with the deep serratus anterior plane block. The study aims to evaluate which method provides better postoperative pain relief, reduces the total consumption of opioid analgesics, and improves patient comfort

Inclusion Criteria: Patients aged 18-80 years. Female patients with ASA physical status I, II, or III. Patients scheduled for elective modified radical mastectomy or breast-conserving surgery. Patients who provided written and verbal informed consent. Exclusion Criteria: Patients with ASA physical status IV-V. Patients with a BMI ≥ 35 kg/m². Patients with chronic pain, opioid/substance addiction, or long-term analgesic use. Patients requiring emergency surgery. Pregnant patients. Known allergy to local anesthetics. Severe cardiovascular, cerebrovascular, liver, or renal disease. History of coagulopathy. Infection at the injection site or systemic infection. Patients who refuse the regional anesthesia technique, cannot speak the official language, or have mental disabilities/inability to cooperate. Patients with a history of previous breast surgery or those scheduled for bilateral operations.