Signal averaging of pre- and post-extrasystolic beats in patients with ventricular arrhythmias

F. Lombardi, M. L. Finocchiaro, L. Dalla Vecchia, E. Cappiello, R. Vianello, G. Baselli, S. Cerutti

Research output: Contribution to journalArticlepeer-review

Abstract

To evaluate the effects of premature ventricular beats on the impulse conduction of adjacent sinus cycles, we compared the high amplification signal-averaged electrocardiogram parameters of the pre- and post-extrasystolic beats with those of the remaining sinus cycle. According to the duration of filtered QRS (fQRS), to the voltage of root mean square of the terminal 40 ms (RMS 40) and to the duration of low amplitude terminal components of the sinus cycles, ventricular late potentials were detected in nine out of 29 subjects. Patients with an abnormal signal-averaged electrocardiogram exhibited a longer fQRS (146 ± 6 versus 116 ± 2 ms), a reduced RMS40 voltage (18 ± 2 versus 80 ± 10 μV) and a prolonged duration of

Original languageEnglish
Pages (from-to)481-487
Number of pages7
JournalEuropean Heart Journal
Volume12
Issue number4
Publication statusPublished - 1991

Keywords

  • post-extracystolic potentation
  • premature ventricular beats
  • re-entrant mechanisms
  • signal averaging
  • ventricular late potentials

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of 'Signal averaging of pre- and post-extrasystolic beats in patients with ventricular arrhythmias'. Together they form a unique fingerprint.

Cite this