Pecto-Intercostal Fascial Block vs. Transversus Thoracic Muscle Plane Block in Cardiac Surgery

PIF block bilaterally (20 ml, 0.25% bupivacaine + 1:400.000 adrenaline). In addition, LA infiltration (10 ml, 0.25% bupivacaine) will be performed by the surgeon around the chest tube in all patients. Intraoperative analgesia: At the end of the surgery, all patients will be given 0.05 mg/kg morphine IV. Postoperative analgesia: Paracetamol 1 gr IV (every 6 hours) and IV PCA of 0.5 mg/ml morphine (demand dose 20µg/kg; lock out interval 6-10 min.; the 4-hour limit will be 80% of the total calculated dose). In cases where rescue analgesia is required (NRS score ≥4) tramadol 100 mg IV will be infused within 30 minutes (max. 300 mg / day). For postoperative nausea and vomiting prophylaxis, patients will be routinely administered ondansetron 4 mg IV 20 minutes before extubation in the intensive care unit.

TTMP block bilaterally (20 ml, 0.25% bupivacaine + 1:400.000 adrenaline). In addition, LA infiltration (10 ml, 0.25% bupivacaine) will be performed by the surgeon around the chest tube in all patients. Intraoperative analgesia: At the end of the surgery, all patients will be given 0.05 mg/kg morphine IV. Postoperative analgesia: Paracetamol 1 gr IV (every 6 hours) and IV PCA of 0.5 mg/ml morphine (demand dose 20µg/kg; lock out interval 6-10 min.; the 4-hour limit will be 80% of the total calculated dose). In cases where rescue analgesia is required (NRS score ≥4) tramadol 100 mg IV will be infused within 30 minutes (max. 300 mg / day). For postoperative nausea and vomiting prophylaxis, patients will be routinely administered ondansetron 4 mg IV 20 minutes before extubation in the intensive care unit.