Elevated impedance during cardioversion in neonates with atrial flutter

Scott R. Ceresnak, Thomas J. Starc, Allan J. Hordof, Robert H. Pass, William J. Bonney, Leonardo Liberman

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Direct-current cardioversion is a common treatment modality for acute termination of atrial flutter in neonates. Studies in children have demonstrated that cardioversion is often successful with as little as 0.25-0.5 J/kg with the current biphasic devices. We hypothesize that during cardioversion of atrial flutter in neonates, however, the impedance may be high and more energy may be required for successful cardioversion. A retrospective chart review of our institutional experience from 2005 through 2008 was performed. Neonates with atrial flutter requiring cardioversion who had strips available for review were included. Six patients met the inclusion criteria. The median age at the time of cardioversion was 2.6 h (range, 1.3-336 h) and the mean weight was 3.22 ± 0.4 kg (SD). The mean electrical impedance of the successful shocks was elevated, at 234 ± 136 Ω. The mean energy delivered for successful cardioversion was 0.9 ± 0.3 J/kg, and the current was 1 A in all patients. In conclusion, the shock impedance was elevated in the neonates studied during cardioversion of atrial flutter. Low current was sufficient for successful cardioversion. Further studies are needed in this specific population.

Original languageEnglish (US)
Pages (from-to)436-440
Number of pages5
JournalPediatric Cardiology
Volume30
Issue number4
DOIs
StatePublished - May 2009

Fingerprint

Electric Countershock
Atrial Flutter
Electric Impedance
Newborn Infant
Shock
Weights and Measures
Equipment and Supplies

Keywords

  • Atrial flutter
  • Cardioversion
  • Impedance
  • Neonates

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Pediatrics, Perinatology, and Child Health

Cite this

Ceresnak, S. R., Starc, T. J., Hordof, A. J., Pass, R. H., Bonney, W. J., & Liberman, L. (2009). Elevated impedance during cardioversion in neonates with atrial flutter. Pediatric Cardiology, 30(4), 436-440. https://doi.org/10.1007/s00246-009-9413-6

Elevated impedance during cardioversion in neonates with atrial flutter. / Ceresnak, Scott R.; Starc, Thomas J.; Hordof, Allan J.; Pass, Robert H.; Bonney, William J.; Liberman, Leonardo.

In: Pediatric Cardiology, Vol. 30, No. 4, 05.2009, p. 436-440.

Research output: Contribution to journalArticle

Ceresnak, SR, Starc, TJ, Hordof, AJ, Pass, RH, Bonney, WJ & Liberman, L 2009, 'Elevated impedance during cardioversion in neonates with atrial flutter', Pediatric Cardiology, vol. 30, no. 4, pp. 436-440. https://doi.org/10.1007/s00246-009-9413-6
Ceresnak SR, Starc TJ, Hordof AJ, Pass RH, Bonney WJ, Liberman L. Elevated impedance during cardioversion in neonates with atrial flutter. Pediatric Cardiology. 2009 May;30(4):436-440. https://doi.org/10.1007/s00246-009-9413-6
Ceresnak, Scott R. ; Starc, Thomas J. ; Hordof, Allan J. ; Pass, Robert H. ; Bonney, William J. ; Liberman, Leonardo. / Elevated impedance during cardioversion in neonates with atrial flutter. In: Pediatric Cardiology. 2009 ; Vol. 30, No. 4. pp. 436-440.
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