The current study is designed to compare the perioperative analgesic efficacy of transversus thoracis plane block (TTPB) and Pecto-intercostal-fascial plane block (PIFB) in children undergoing cardiac surgery via median sternotomy

Sixty paediatric patients of either sex, aged 2-12 years, undergoing elective cardiac surgery via median sternotomy. Patients will be excluded from the current study in case of, refusal to participate, redo or urgent cardiac surgery, local infection of the skin at the site of needle puncture, allergy to bupivacaine, coagulation disorders, clinically significant liver or kidney disease, heart failure, moderate to severe pulmonary hypertension, and when extubation is intentionally planned to be delayed. Patients will be randomly assigned to one of two equal groups, the PIF block group and TTP block group, each will include 30 patients, by a computer-generated randomization table and concealed sealed opaque envelopes.

Inclusion Criteria:

• either sex, aged 2-12 years, undergoing

elective cardiac surgery via median sternotomy

Exclusion Criteria:

• refusal to participate, redo or urgent cardiac surgery, local infection of the skin at the site of needle puncture, allergy to bupivacaine, coagulation disorders, clinically significant liver or kidney disease, heart failure, moderate to severe pulmonary hypertension