Characteristics of ventricular tachycardia ablation in patients with continuous flow left ventricular assist devices
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články, pozorovací studie
PubMed
25870335
DOI
10.1161/circep.114.002394
PII: CIRCEP.114.002394
Knihovny.cz E-zdroje
- Klíčová slova
- ablation, ventricular arrhythmia, ventricular assist device, ventricular tachycardia,
- MeSH
- akční potenciály MeSH
- časové faktory MeSH
- centra terciární péče MeSH
- elektrofyziologické techniky kardiologické MeSH
- funkce levé komory srdeční * MeSH
- katetrizační ablace * MeSH
- komorová tachykardie diagnóza mortalita patofyziologie chirurgie MeSH
- lidé středního věku MeSH
- lidé MeSH
- podpůrné srdeční systémy * škodlivé účinky MeSH
- recidiva MeSH
- rizikové faktory MeSH
- senioři MeSH
- srdeční selhání diagnóza mortalita patofyziologie terapie MeSH
- studie proveditelnosti MeSH
- tepový objem MeSH
- výsledek terapie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- pozorovací studie MeSH
- Geografické názvy
- Evropa MeSH
- Spojené státy americké MeSH
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 58±10 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.
Citace poskytuje Crossref.org
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2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias
2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias
2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias