Effect of dexmeditomidine on postoperative junctional ectopic tachycardia after complete surgical repair of tetralogy of Fallot: A prospective randomized controlled study.

Introduction: Incidence of junctional ectopic tachycardia (JET) after repair of tetralogy of Fallot (TOF) is 5.6-14%. Dexmeditomidine is a a-2 adrenoceptor agonist modulates the release of catecholamine, resulting in bradycardia and hypotension.