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

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 journal › Article › peer-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 language	English
Pages (from-to)	481-487
Number of pages	7
Journal	European Heart Journal
Volume	12
Issue number	4
Publication status	Published - 1991

Keywords

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

ASJC Scopus subject areas

Cardiology and Cardiovascular Medicine

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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 ",

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AU - Lombardi, F.

AU - Finocchiaro, M. L.

AU - Dalla Vecchia, L.

AU - Cappiello, E.

AU - Vianello, R.

AU - Baselli, G.

AU - Cerutti, S.

PY - 1991

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AB - 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

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KW - re-entrant mechanisms

KW - signal averaging

KW - ventricular late potentials

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