Ventricular arrhythmia induced by programmed ventricular stimulation after acute myocardial infarction

Pietro Santarelli*, Fulvio Bellocci, Francesco Loperfido, Mario Mazzari, Rocco Mongiardo, Annibale S. Montenero, Ugo Manzoli, Pablo Denes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


The prevalence, characteristics and clinical significance of ventricular electrical instability with programmed ventricular stimulation was studied in 50 hemodynamically stable patients 17 to 40 days after acute myocardial infarction (AMI) using double extrastimuli at 2- and 10-mA intensity and from 2 right ventricular sites. Ventricular electrical instability was defined as induction of 10 or more consecutive intraventricular reentrant beats. Of 50 patients, 23 (46%) had ventricular electrical instability (10 of these had sustained ventricular tachycardia [VT] induced). No significant differences were observed between patients with and without ventricular electrical instability with respect to age, site of AMI, coronary prognostic index, maximal level of CK, number of narrowed coronary arteries and presence of severe wall motion abnormalites. During a mean follow-up of 11.2 months no patient died suddenly. During repeated Holter recordings patients with ventricular electrical instability had a higher incidence of nonsustained VT than did patients without ventricular electrical instability.

Original languageEnglish (US)
Pages (from-to)391-394
Number of pages4
JournalThe American journal of cardiology
Issue number4
StatePublished - Feb 1 1985

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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