Physiology-Based Electrocardiographic Criteria for Left Bundle Branch Capture
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11120%2F21%3A43921228" target="_blank" >RIV/00216208:11120/21:43921228 - isvavai.cz</a>
Alternative codes found
RIV/00064173:_____/21:N0000085
Result on the web
<a href="https://doi.org/10.1016/j.hrthm.2021.02.021" target="_blank" >https://doi.org/10.1016/j.hrthm.2021.02.021</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.hrthm.2021.02.021" target="_blank" >10.1016/j.hrthm.2021.02.021</a>
Alternative languages
Result language
angličtina
Original language name
Physiology-Based Electrocardiographic Criteria for Left Bundle Branch Capture
Original language description
BACKGROUND: During left bundle branch (LBB) area pacing, it is important to confirm that the capture of the LBB is achieved, not just the capture of only the adjacent left ventricular (LV) myocardium. OBJECTIVE: Our aim was to establish ECG criteria for LBB capture. We hypothesized that since LBB pacing results in physiologic depolarization of the LV then the native QRS can serve as a reference for the diagnosis of LBB capture in the same patient. METHODS: Only patients with evidence of LBB capture (QRS morphology transition) were included. Several QRS characteristics were compared between the native rhythm and different types of LBB area capture. RESULTS: A total of 357 ECGs (124 patients) were analyzed: 118 with native rhythm, 124 with non-selective LBB capture, 69 with selective LBB capture and 46 with LV septal capture. Our hypotheses that during LBB capture the paced V6 R-wave peak time (RWPT, measured from QRS onset) equals the native V6 RWPT and that the paced V6 RWPT (measured from the stimulus) equals the LBB potential to V6 R-wave peak interval were positively validated. Criteria based on these rules had sensitivity and specificity of 88.2-98.0% and 85.7-95.4%, respectively. Moreover, 100% specific V6 RWPT cut-off for LBB capture diagnosis in patients with narrow QRS/right bundle branch block was determined to be 74 ms. CONCLUSION: We showed equivalency of LV activation times in ECG during native and paced LBB conduction, consequently, if V6 RWPT is longer during pacing, this is indicative of lack of LBB capture.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30201 - Cardiac and Cardiovascular systems
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Heart Rhythm
ISSN
1547-5271
e-ISSN
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Volume of the periodical
18
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
935-943
UT code for WoS article
000656705500015
EID of the result in the Scopus database
2-s2.0-85104571494