Successful Treatment of Refractory Cardiac Arrest With β-Blockade and Extracorporeal Life Support in a Pediatric Patient With Catecholaminergic Polymorphic Ventricular Tachycardia: A Case Report
2018
: We describe a case of refractory pulseless polymorphic ventricular tachycardia successfully treated with a bolus of propranolol intravenously, followed by an esmolol infusion and extracorporeal life support for 4 days in a 12-year-old boy later diagnosed with catecholaminergic polymorphic ventricular tachycardia. He had an excellent neurological outcome. Genetic testing for mutations associated with cardiac arrhythmias yielded a mutation of the syntrophin α-1 gene. The pathogenicity of this specific variant is uncertain. A mutation of this gene at a different locus is implicated in rare cases of long-QT syndrome. The patient subsequently underwent left cardiac sympathetic denervation followed by implantable cardiac defibrillator insertion. He remains symptom and arrhythmia free on atenolol.
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