Comparison Between Erector Spinae Plane Block Versus Serratus Anterior Plane Block Regarding Analgesia Post Modified Radical Mastectomy

On injecting 30 ml of bupivacaine 0.25% with 20 mcg Dexamedetomidine into the interfacial plane below erector spinae; a manifest linear pattern will be visualized uplifting the muscle.

Once the needle will be in perfect position, confirmed by hydro-dissection on injecting 2-3 ml of normal saline, then 30 ml of bupivacaine 0.25% with 20 mcg Dexamedetomidine.