Original research: Dexmedetomidine versus ketamine in erector spinae plane block for postoperative analgesia following modified radical mastectomy: A prospective randomized controlled blinded study

Background A significant postoperative pain has been documented in numerous breast cancer cases following modified radical mastectomy (MRM). We evaluated the effectiveness of dexmedetomidine (DEX) versus ketamine as adjuvants to local anaesthetic in erector spinae plane block (ESPB) in MRM.