Decreased noise and identification of very low voltage signals using a novel electrophysiology recording system
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F23%3A00084429" target="_blank" >RIV/00023001:_____/23:00084429 - isvavai.cz</a>
Result on the web
<a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10658352/pdf/ecr-18-e59.pdf" target="_blank" >http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10658352/pdf/ecr-18-e59.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.15420/ecr.2022.37" target="_blank" >10.15420/ecr.2022.37</a>
Alternative languages
Result language
angličtina
Original language name
Decreased noise and identification of very low voltage signals using a novel electrophysiology recording system
Original language description
Aims: The interpretation of intracardiac electrograms recorded from conventional electrophysiology recording systems is frequently impacted by powerline (50/60 Hz) noise and distortion due to notch filtering. This study compares unipolar electrograms recorded simultaneously from a conventional electrophysiology recording system and one of two 3D mapping systems (control system) with those from a novel system (ECGenius, CathVision ApS) designed to reduce noise without the need for conventional filtering. Methods: Unipolar electrograms were recorded simultaneously from nine consecutive patients undergoing catheter ablation for AF (five patients), atrioventricular nodal re-entrant tachycardia (three patients), or ventricular tachycardia (one patient) over the course of 1 week in 2020. Results: The noise spectral power of the novel system (49-51 Hz) was 6.1 +/- 6.2 times lower than that of the control system. Saturation artefact following pacing (duration 97 +/- 85 ms) occurred in eight control recordings and no novel system recordings (p<0.001). High frequency, low amplitude signals and fractionated electrograms apparent on unfiltered novel system unipolar recordings were not present on control recordings. Control system notch filtering obscured His bundle electrograms observable without such filtering using the novel system and induced electrogram distortion that was not present on novel system recordings. Signal saturation occurred in five of seven control system recordings but none of the novel system recordings. Conclusion: In this study, novel system recordings exhibited less noise and fewer signal artefacts than the conventional control system and did not require notch filtering that distorted electrograms on control recordings. The novel recording system provided superior electrogram data not apparent with conventional systems.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
30201 - Cardiac and Cardiovascular systems
Result continuities
Project
—
Continuities
N - Vyzkumna aktivita podporovana z neverejnych zdroju
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Cardiology Review
ISSN
1758-3756
e-ISSN
1758-3756
Volume of the periodical
18
Issue of the periodical within the volume
October 31
Country of publishing house
GB - UNITED KINGDOM
Number of pages
5
Pages from-to
"art. no. e59"
UT code for WoS article
001104282900001
EID of the result in the Scopus database
2-s2.0-85176612264