Paroxysmal supraventricular tachycardia associated with dexmedetomidine withdrawal in an adult liver transplant recipient: A case report

BACKGROUND Dexmedetomidine is a selective α2-adrenergic receptor agonist widely used for sedation and anxiolysis in intensive care units (ICUs). Abrupt discontinuation after prolonged infusion may induce withdrawal symptoms because of sympathetic rebound. Although sinus tachycardia and hypertension are common manifestations, clinically significant tachyarrhythmias have rarely been reported in adults. CASE SUMMARY A woman in her 60 years was readmitted to the ICU for septic shock following liver