This study aims to compare the effectiveness of two regional anesthesia techniques in managing pain for participants undergoing cardiac surgery via sternotomy. The investigators will evaluate whether the Erector Spinae Plane Block (ESPB) or a combination of the Superficial Parasternal Intercostal Plane Block (SPIPB) and Serratus Anterior Plane Block (SAPB) provides better pain control and recovery outcomes.
Patients aged between 18 and 80 years.
Patients classified as American Society of Anesthesiologists (ASA) physical status I, II, or III.
Patients scheduled for elective cardiac surgery via median sternotomy.
Patients who have provided written informed consent.
Pregnancy or suspected pregnancy.
Body Mass Index (BMI) > 35 kg/m².
Known allergy or hypersensitivity to local anesthetics (e.g., bupivacaine).
Suspected coagulopathy or bleeding disorders.