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Efficacy and safety of intravenous amiodarone for incessant tachycardias in infants


Burri, Silvia; Hug, Maja Isabel; Bauersfeld, Urs (2003). Efficacy and safety of intravenous amiodarone for incessant tachycardias in infants. European Journal of Pediatrics, 162(12):880-884.

Abstract

Amiodarone is an effective anti-arrhythmic agent for the treatment of supraventricular and ventricular tachycardias. The safety and efficacy of intravenous amiodarone has been described in adults and children but only to a limited extent in infants. The purpose of this study was to evaluate the safety and efficacy of intravenous amiodarone in infants. Between February 1994 and June 2001, 23 infants with a median age of 8 days (range 1-300 days) with life-threatening incessant tachycardias (17 supraventricular, 6 ventricular) were treated with intravenous amiodarone as single anti-arrhythmic agent. At presentation, 22 infants were haemodynamically unstable. Amiodarone was given as an intravenous loading dose of 5mg/kg over 1h followed by an intravenous maintenance dose of 5µg/kg per min with stepwise increase up to 25µg/kg per min until arrhythmia control or side-effects occurred. Amiodarone was effective in 19 infants, partially effective in three and ineffective in one infant. The median time until arrhythmia control was 24h (range 1-96h) and the median maintenance dosage 15µg/kg per min (range 5-26µg/kg per min). Electrophysiological side-effects necessitating dose reduction comprised of sinus bradycardia in two patients. Hypotension in one patient resolved after dose diminution. Neurological side-effects consisted of choreatic movements in one infant, which resolved over time. Amiodarone administration was stopped in one patient with elevated liver enzymes. Conclusion:intravenous amiodarone is a safe and effective therapy for life-threatening incessant tachycardias in infants

Abstract

Amiodarone is an effective anti-arrhythmic agent for the treatment of supraventricular and ventricular tachycardias. The safety and efficacy of intravenous amiodarone has been described in adults and children but only to a limited extent in infants. The purpose of this study was to evaluate the safety and efficacy of intravenous amiodarone in infants. Between February 1994 and June 2001, 23 infants with a median age of 8 days (range 1-300 days) with life-threatening incessant tachycardias (17 supraventricular, 6 ventricular) were treated with intravenous amiodarone as single anti-arrhythmic agent. At presentation, 22 infants were haemodynamically unstable. Amiodarone was given as an intravenous loading dose of 5mg/kg over 1h followed by an intravenous maintenance dose of 5µg/kg per min with stepwise increase up to 25µg/kg per min until arrhythmia control or side-effects occurred. Amiodarone was effective in 19 infants, partially effective in three and ineffective in one infant. The median time until arrhythmia control was 24h (range 1-96h) and the median maintenance dosage 15µg/kg per min (range 5-26µg/kg per min). Electrophysiological side-effects necessitating dose reduction comprised of sinus bradycardia in two patients. Hypotension in one patient resolved after dose diminution. Neurological side-effects consisted of choreatic movements in one infant, which resolved over time. Amiodarone administration was stopped in one patient with elevated liver enzymes. Conclusion:intravenous amiodarone is a safe and effective therapy for life-threatening incessant tachycardias in infants

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Item Type:Journal Article, refereed, original work
Communities & Collections:National licences > 142-005
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Health Sciences > Pediatrics, Perinatology and Child Health
Language:English
Date:1 December 2003
Deposited On:11 Oct 2018 10:37
Last Modified:15 Apr 2021 14:52
Publisher:Springer
ISSN:0340-6199
OA Status:Green
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/s00431-003-1302-z

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