Supraventricular paroxysmal tachycardia by overdose of salbutamol

Abstract

Introduction: Synus tachicardia is the most frecuent clinical finding after the ingesion of a salbutamol overdose. It is a common reflex response to vasodilation while cardiac dysrhytmias are rare. Case report:Athree year old boy presented to de emergency department after the accidental ingestion of an overdose of salbutamol. A12 lead ECG showed supraventricular paroxysmal tachicardia with a heart rate of 250 beats per minute. After an unsuccessful therapeutic attempt with vagal manoeuvres, a single dose of intravenous propanolol restored normal sinus rhythm. Conclusion: Supreventricular tachycardia may occur in previously healthy children after a salbutamol overdose. Propanolol administration may be indicated in these cases and seems safe.