The tip of the muscle is a dominant location of ventricular ectopy originating from papillary muscles in the left ventricle
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F18%3A00076543" target="_blank" >RIV/00023001:_____/18:00076543 - isvavai.cz</a>
Alternative codes found
RIV/00098892:_____/18:N0000176
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/pdf/10.1111/jce.13338" target="_blank" >https://onlinelibrary.wiley.com/doi/pdf/10.1111/jce.13338</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jce.13338" target="_blank" >10.1111/jce.13338</a>
Alternative languages
Result language
angličtina
Original language name
The tip of the muscle is a dominant location of ventricular ectopy originating from papillary muscles in the left ventricle
Original language description
Introduction: Frequent ventricular premature complexes (VPCs) may cause symptoms and/or lead to deterioration of LV systolic function. Although frequent VPCs may be abol ished by catheter ablation, it may be challenging in case of their origin from the LV papillary muscles (PMs). Our collaborative study aimed to analyze in detail the site of origin and the outcome of ablation. Methods: Consecutive 34 patients (males: 68%: aged 62 +/- 12 years; LV ejection fraction: 50 +/- 9%) undergoing catheter ablation of VPCs originating from PMs were included. All procedures were guided by intracardiac echocardiography. Results: The size and shape of PMs were highly variable. The length of anterolateral and posteromedial PM was 23 +/- 4 mm and 28 +/- 7 mm, respectively. In about one-third of patients, the PM was formed by two distinctly separate heads. The ectopic foci were located on anterolateral, posteromedial or both PM in 35%, 56% and 9% of cases, respectively. Their location was found within the distal, mid, or proximal (basal) third of PM in the 67%, 19%, and 14%, respectively. A total of 86% of PMfoci were acutely abolished and long-term success was achieved in 65% of patients. Absence of VPCs of other morphologies and a high burden of ectopic activity before ablation were associated with favorable clinical outcome. Conclusion: VPCs originate predominantly from the distal portion of the PM. This knowledge may facilitate the mapping in patients with infrequent ectopic beats. Intracardiac echocardiography is of crucial importance for navigation of the ablation catheter and for assessment of its stability at PM target sites.
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
N - Vyzkumna aktivita podporovana z neverejnych zdroju
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of cardiovascular electrophysiology
ISSN
1045-3873
e-ISSN
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Volume of the periodical
29
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
64-70
UT code for WoS article
000422982700013
EID of the result in the Scopus database
2-s2.0-85040821287