Mayo Foundation for Medical Education and Research

St. Anne's University Hospital Brno

Fakultni Nemocnice U Sv. Anny V Brne

Ustav Pristrojove Techniky Av Cr, V.i.i.

M & I, Spol. S.r.o.

Institute of Scientific Instruments of the Czech Academy of Sciences, V. V. I.

Charles University

Cardian S.r.o.

Cardion S.r.o.

Pavel Leinveber

Miroslav Novak

Samuel J Asirvatham

Paul A Friedman

Charles J Bruce

Christopher V DeSimone

Josef Halamek

Pavel Jurak

Vlastimil Vondra

Ivo Viscor

Faisal F Syed

Jiri Wolf

Zdenek Starek

Jolana Lipoldova

Tomas Kara

Frits W Prinzen

Filip Plesinger

Petr Vesely

Tereza Reichlova

Josef Sumbera

Jaroslav Meluzin

Karel Zeman

Michal Kuna

Filip Piesinger

Radovan Smisek

Magdalena Matejkova

Karol Curila

Jana Vesela

Ivo Nekuda

Vit Nekuda

Petr Klimes

A method of processing of electrocardiogram includes the steps of providing an electrocardiogram comprising signals in at least two channels; selecting at least two frequency ranges of the signal in each of the said at least two channels; calculating an envelope for the signal in each frequency range in each channel; dividing the calculated envelope of the signal in each frequency range in each channel into QRS complex segment envelopes; and computing an average or median envelope as an average or mean of QRS complex segment envelopes for each frequency range in each channel.

Method of electrocardiographic signal processing and apparatus for performing the method

Systems and methods for epicardial pacing are provided. For example, this document provides epicardial pacing using a percutaneously delivered bifurcated pacing lead that has multiple electrodes that are directionally insulated to prevent extracardiac stimulation, including prevention of phrenic stimulation. In addition, the devices, systems, and methods provided can be used for ablation, defibrillation, and/or defibrillation in combination with pacing.

Multi-electrode epicardial pacing

A method of measuring and analyzing the ultra high frequency EKG is performed by measuring the EKG within the frequency range above 250 Hz with a dynamic range of at least 100 dB. In the UHF EKG signal positions of Rof R wave in QRS complex of EKG are detected on the time axis and the EKG signal is converted to amplitude or power envelopes, the amplitude or power envelopes frequency range is anywhere within the limits from 0.2 Hz to at least 500 Hz. From these envelopes the amplitude and time numerical parameters that describe the myocardium depolarization inhomogeneity and electric myocardium dyssynchrony are determined, and these parameters are used for selecting the patients for multi-chamber stimulators implementation and optimization of their setting.

Method of EKG signal processing and apparatus for performing the method

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Policka, Czechia

Pavel Leinveber