Purpose The aim of this proof-of-concept study is to intro- dyssynchrony distribution in resolution of milliseconds and duce new high-dynamic ECG technique with potential to de- correlate with strain rate results obtained by speckle tracking tect temporal-spatial distribution of ventricular electrical de- echocardiography. The effect of biventricular stimulation is polarization and to assess the level of ventricular demonstrated by the UHFQRS morphology and by the dyssynchrony. UHFDYS descriptor in selected examples. Methods 5-kHz 12-lead ECG data was collected. The ampli- Conclusions UHFQRS offers a new and simple technique for tude envelopes of the QRS were computed in an ultra-high assessing electrical activation patterns in ventricular frequency band of 500–1000 Hz and were averaged dyssynchrony with a temporal-spatial resolution that cannot (UHFQRS). UHFQRS V lead maps were compiled, and nu- be obtained by processing standard surface ECG. The main merical descriptor identifying ventricular dyssynchrony clinical potential of UHFQRS lies in the identification of dif- (UHFDYS) was detected. ferences in electrical activation among CRT candidates and detection of improvements in electrical synchrony in patients with biventricular pacing. Electronic supplementary material The online version of this article (doi:10.1007/s10840-017-0268-0) contains supplementary material, Keywords Ventricular dyssynchrony Cardiac which is available to authorized users. resynchronization
Journal of Interventional Cardiac Electrophysiology – Springer Journals
Published: Jul 10, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera