Erector Spinae Block Versus Combined Pecto-intercostal and Recto-intercostal Fascial Plane Block in Cardiac Surgery

The block will be done under ultrasound guidance using 20 ml bupivacaine 0.25% that will be injected for each side ensuring not to exceed the maximal 2 mg/kg bupivacaine dose.

The blocks will be done under ultrasound guidance using 10-15 ml of 0.25% bupivacaine that will be injected for each side ensuring not to exceed the maximal 2 mg/kg bupivacaine dose..