A double-blind randomized control study to compare the efficacy of dexmedetomidine versus ketamine as an adjuvant in combination with bupivacaine ultrasound-guided ESP block in patients scheduled for cardiothoracic surgeries with thoracotomy incision.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
the duration of analgesia
Timeframe: immediately at the end of pediatric cardiac operation