Detail publikace

Ultra-High-Frequency ECG Parameter as a New Marker for Prediction of Biventricular Pacemaker Responders

Tereza Reichlova, Pavel Jurak, Josef Halamek, Filip Plesinger, Jolana Lipoldova, Miroslav Novak, Pavel Leinveber

Originální název

Ultra-High-Frequency ECG Parameter as a New Marker for Prediction of Biventricular Pacemaker Responders

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

Biventricular implantable pacemaker (BiV) is usually recommended for heart failure patients with LVEF lower than 35% and QRS duration higher than 120ms. We introduce promising marker evaluating appropriateness and efficiency of Cardiac Resynchronization Therapy (CRT) recipients. We collected 12-lead UHF-ECG data of 24 CRT subjects - 5 minute resting measurement with sampling frequency 25 kHz, each before BiV and with BiV on (VV delay 0). A new parameter DYS was computed as time difference between two maxima of UHF envelopes computed from V1 and V6 leads in QRS complex in 500-1000Hz frequency band. DYS was calculated before and after implantation of BiV pacemaker. The two values of DYS were compared with standard QRS duration. The assumption for being responder for BiV is high value of DYS before CRT and significant DYS decrease during biventricular pacing - index of dyssynchrony decrease - DYSindex (ratio of DYS before and after). DYSindex higher than 1 identifies improvement in patients condition after BiV implantation. Subjects who do not benefit from Biv are in the lower part of the Table. These patients with DYSindex lower than 1 have simultaneously DYS parameter before stimulation <= 30ms. Thus the DYS parameter can serve as a new marker for responders prediction. This information cannot be derived from standard QRS duration values prior BiV implantation.

Klíčová slova

Biventricular implantable pacemaker; heart failure; QRS duration; Ultra-High-Frequency ECG; ventricular dyssynchrony

Autoři

Tereza Reichlova, Pavel Jurak, Josef Halamek, Filip Plesinger, Jolana Lipoldova, Miroslav Novak, Pavel Leinveber

Vydáno

12. 9. 2015

Strany počet

1

BibTex

@misc{BUT115697,
  author="Tereza {Postránecká} and Pavel {Leinveber} and Pavel {Jurák} and Josef {Halámek}",
  title="Ultra-High-Frequency ECG Parameter as a New Marker for Prediction of Biventricular Pacemaker Responders",
  year="2015",
  pages="1",
  note="abstract"
}