Analysis of programmed stimulation methods in the evaluation of ventricular arrhythmias in patients 20 years old and younger

Michael J. Silka, Jack Kron, Joel E. Cutler, John H. McAnulty

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13 Citations (Scopus)

Abstract

The purpose of this study was to systematically evaluate programmed ventricular stimulation in patients 2 S3, S4, S5) extrastimuli during pacing at 2 ventricular sites. Of the 17 patients with sustained VT, 12 had induction of the arrhythmia (sensitivity = 71%). Overall, 18 of 55 patients had inducible sustained VT, with this response significantly enhanced by use of S4 or S5 protocols (p = 0.02). Although no syncope patient with an ostensibly normal heart had inducible sustained VT, 7 had polymorphic nonsustained VT in response to ventricular stimulation. The mean number of extrastimuli preceding the induction of nonsustained or sustained VT or VF did not differ. The induction of VF in 5 cases during this study was preceded in each case by extrastimuli intervals ≤190 ms. Thus, data indicate that aggressive stimulation protocols appear to be required for induction of sustained VT in most young patients, nonsustained polymorphic VT as a response to aggressive programmed stimulation is of uncertain significance, and that coupling intervals ≤190 ms may correlate with the induction of VF.

Original languageEnglish (US)
Pages (from-to)826-830
Number of pages5
JournalThe American Journal of Cardiology
Volume66
Issue number10
DOIs
StatePublished - Oct 1 1990

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Cardiac Arrhythmias
Syncope

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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Analysis of programmed stimulation methods in the evaluation of ventricular arrhythmias in patients 20 years old and younger. / Silka, Michael J.; Kron, Jack; Cutler, Joel E.; McAnulty, John H.

In: The American Journal of Cardiology, Vol. 66, No. 10, 01.10.1990, p. 826-830.

Research output: Contribution to journalArticle

Silka, Michael J. ; Kron, Jack ; Cutler, Joel E. ; McAnulty, John H. / Analysis of programmed stimulation methods in the evaluation of ventricular arrhythmias in patients 20 years old and younger. In: The American Journal of Cardiology. 1990 ; Vol. 66, No. 10. pp. 826-830.
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