Characteristics of ventricular tachycardia ablation in patients with continuous flow left ventricular assist devices
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F15%3A00059623" target="_blank" >RIV/00023001:_____/15:00059623 - isvavai.cz</a>
Result on the web
<a href="http://circep.ahajournals.org/content/8/3/592.full.pdf+html" target="_blank" >http://circep.ahajournals.org/content/8/3/592.full.pdf+html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1161/CIRCEP.114.002394" target="_blank" >10.1161/CIRCEP.114.002394</a>
Alternative languages
Result language
angličtina
Original language name
Characteristics of ventricular tachycardia ablation in patients with continuous flow left ventricular assist devices
Original language description
Background Left ventricular assist devices (LVADs) are increasingly used as a bridge to cardiac transplantation or as destination therapy. Patients with LVADs are at high risk for ventricular arrhythmias. This study describes ventricular arrhythmia characteristics and ablation in patients implanted with a Heart Mate II device. Methods and Results All patients with a Heart Mate II device who underwent ventricular arrhythmia catheter ablation at 9 tertiary centers were included. Thirty-four patients (30 male, age 5810 years) underwent 39 ablation procedures. The underlying cardiomyopathy pathogenesis was ischemic in 21 and nonischemic in 13 patients with a mean left ventricular ejection fraction of 17%+/- 5% before LVAD implantation. One hundred and ten ventricular tachycardias (VTs; cycle lengths, 230-740 ms, arrhythmic storm n=28) and 2 ventricular fibrillation triggers were targeted (25 transseptal, 14 retrograde aortic approaches). Nine patients required VT ablation <1 month after LVAD implantation because of intractable VT. Only 10/110 (9%) of the targeted VTs were related to the Heart Mate II cannula. During follow-up, 7 patients were transplanted and 10 died. Of the remaining 17 patients, 13 were arrhythmia-free at 25 +/- 15 months. In 1 patient with VT recurrence, change of turbine speed from 9400 to 9000 rpm extinguished VT. Conclusions Catheter ablation of VT among LVAD recipients is feasible and reasonably safe even soon after LVAD implantation. Intrinsic myocardial scar, rather than the apical cannula, seems to be the dominant substrate.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
FA - Cardiovascular diseases including cardio-surgery
OECD FORD branch
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Result continuities
Project
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Continuities
N - Vyzkumna aktivita podporovana z neverejnych zdroju
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Circulation: arrhythmia and electrophysiology
ISSN
1941-3149
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
592-597
UT code for WoS article
000356419300014
EID of the result in the Scopus database
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