Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-22T09:46:09.307Z Has data issue: false hasContentIssue false

QT prolongation and torsades de pointes in a patient with heart block and a pacemaker

Published online by Cambridge University Press:  20 January 2015

Brett S. Bernstein
Affiliation:
Pediatric Electrophysiology, Department of Pediatrics, Morgan Stanley Children’s Hospital of New York Presbyterian, New York, New York, United States of America
Eric S. Silver
Affiliation:
Pediatric Electrophysiology, Department of Pediatrics, Morgan Stanley Children’s Hospital of New York Presbyterian, New York, New York, United States of America
Leonardo Liberman*
Affiliation:
Pediatric Electrophysiology, Department of Pediatrics, Morgan Stanley Children’s Hospital of New York Presbyterian, New York, New York, United States of America
*
Correspondence to: L. Liberman, MD, Pediatric Cardiology, Morgan Stanley Children’s Hospital, 3959 Broadway, 2 North, New York, NY 10032, United States of America. Tel: 212 342 0525; Fax: 212 342 5721; E-mail: [email protected]

Abstract

Prolongation of the QT interval and development of torsades de pointes are known in patients with complete heart block and profound bradycardia. We report the case of a patient with complete heart block and torsades, with long QT seen during a period of junctional tachycardia at a rate faster than the minimum pacemaker rate.

Type
Brief Reports
Copyright
© Cambridge University Press 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Mendoza, A, Belda, S, Salguero, R, Granados, MA. Congenital complete atrioventricular block associated with QT prolongation: description of a patient with an unusual outcome. Pediatr Cardiol 2010; 31: 887890.CrossRefGoogle ScholarPubMed
2. Gladman, G, Davis, AM, Fogelman, R, Hamilton, RM, Gow, RM. Torsade de pointes, acquired complete heart block and inappropriately long QT in childhood. Can J Cardiol 1996; 12: 683685.Google ScholarPubMed
3. Wilmin, S, De Bels, D, Knecht, S, Gottignies, P, Gazagnes, MD, Devriendt, J. Torsade de pointes in Kearns-Sayre syndrome. Pract Neurol 2012; 12: 199201.CrossRefGoogle ScholarPubMed
4. Jeon, JH, Her, SH, Chin, JY, et al. Complete atrioventricular block-induced Torsade de pointes, manifested by epilepsy. Korean J Intern Med 2011; 26: 99102.CrossRefGoogle ScholarPubMed
5. Esscher, E, Michaelsson, M. Q-T interval in congenital complete heart block. Pediatr Cardiol 1983; 4: 121124.CrossRefGoogle ScholarPubMed
6. Yiginer, O, Kilicaslan, F, Aparci, M, et al. Advanced age, female gender and delay in pacemaker implantation may cause TdP in patients with complete atrioventricular block. Indian Pacing Electrophysiol J 2010; 10: 454463.Google ScholarPubMed
7. Rodrigues, B, Correia, E, Ferreira Santos, L, et al. Left bundle branch block, atrioventricular block, torsade de pointes and long QT syndrome: is this too much for a rare cardiomyopathy? Rev Port Cardiol 2013; 32: 425430.CrossRefGoogle ScholarPubMed
8. Kurita, T, Ohe, T, Marui, N, et al. Bradycardia-induced abnormal QT prolongation in patients with complete atrioventricular block with torsades de pointes. Am J Cardiol 1992; 69: 628633.CrossRefGoogle ScholarPubMed
9. Chawla, P, Gadhavi, P, Hanon, S, Schweitzer, P. Pause dependent torsade de pointes – does the cause of bradycardia matter? Circulation 2008; 118: S-833.Google Scholar
10. Antzelevitch, C, Sicouri, S. Clinical relevance of cardiac arrhythmias generated by after depolarizations. J Am Coll Cardiol 1994; 23: 259277.CrossRefGoogle Scholar