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Ventricular dyssynchrony assessment using ultra-high frequency ECG technique
P. Jurak, J. Halamek, J. Meluzin, F. Plesinger, T. Postranecka, J. Lipoldova, M. Novak, V. Vondra, I. Viscor, L. Soukup, P. Klimes, P. Vesely, J. Sumbera, K. Zeman, RS. Asirvatham, J. Tri, SJ. Asirvatham, P. Leinveber,
Jazyk angličtina Země Nizozemsko
Typ dokumentu časopisecké články
NLK
ProQuest Central
od 1997-07-01 do Před 1 rokem
Medline Complete (EBSCOhost)
od 2011-01-01 do Před 1 rokem
Health & Medicine (ProQuest)
od 1997-07-01 do Před 1 rokem
- MeSH
- dospělí MeSH
- dysfunkce levé srdeční komory diagnostické zobrazování terapie MeSH
- echokardiografie trojrozměrná metody MeSH
- elektrokardiografie metody MeSH
- interpretace obrazu počítačem * MeSH
- lidé středního věku MeSH
- lidé MeSH
- remodelace komor fyziologie MeSH
- senioři MeSH
- srdeční resynchronizační terapie metody MeSH
- stupeň závažnosti nemoci MeSH
- výsledek terapie MeSH
- vzorkové studie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
PURPOSE: The aim of this proof-of-concept study is to introduce new high-dynamic ECG technique with potential to detect temporal-spatial distribution of ventricular electrical depolarization and to assess the level of ventricular dyssynchrony. METHODS: 5-kHz 12-lead ECG data was collected. The amplitude envelopes of the QRS were computed in an ultra-high frequency band of 500-1000 Hz and were averaged (UHFQRS). UHFQRS V lead maps were compiled, and numerical descriptor identifying ventricular dyssynchrony (UHFDYS) was detected. RESULTS: An electrical UHFQRS maps describe the ventricular dyssynchrony distribution in resolution of milliseconds and correlate with strain rate results obtained by speckle tracking echocardiography. The effect of biventricular stimulation is demonstrated by the UHFQRS morphology and by the UHFDYS descriptor in selected examples. CONCLUSIONS: UHFQRS offers a new and simple technique for assessing electrical activation patterns in ventricular dyssynchrony with a temporal-spatial resolution that cannot be obtained by processing standard surface ECG. The main clinical potential of UHFQRS lies in the identification of differences in electrical activation among CRT candidates and detection of improvements in electrical synchrony in patients with biventricular pacing.
Institute of Scientific Instruments of the Czech Academy of Sciences Brno Czech Republic
International Clinical Research Center St Anne's University Hospital Brno Czech Republic
Citace poskytuje Crossref.org
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- $a PURPOSE: The aim of this proof-of-concept study is to introduce new high-dynamic ECG technique with potential to detect temporal-spatial distribution of ventricular electrical depolarization and to assess the level of ventricular dyssynchrony. METHODS: 5-kHz 12-lead ECG data was collected. The amplitude envelopes of the QRS were computed in an ultra-high frequency band of 500-1000 Hz and were averaged (UHFQRS). UHFQRS V lead maps were compiled, and numerical descriptor identifying ventricular dyssynchrony (UHFDYS) was detected. RESULTS: An electrical UHFQRS maps describe the ventricular dyssynchrony distribution in resolution of milliseconds and correlate with strain rate results obtained by speckle tracking echocardiography. The effect of biventricular stimulation is demonstrated by the UHFQRS morphology and by the UHFDYS descriptor in selected examples. CONCLUSIONS: UHFQRS offers a new and simple technique for assessing electrical activation patterns in ventricular dyssynchrony with a temporal-spatial resolution that cannot be obtained by processing standard surface ECG. The main clinical potential of UHFQRS lies in the identification of differences in electrical activation among CRT candidates and detection of improvements in electrical synchrony in patients with biventricular pacing.
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