2019
Stereotactic radiosurgery for ablation of ventricular tachycardia
NEUWIRTH, Radek; Jakub CVEK; Lukas KNYBEL; Otakar JIRAVSKÝ; Lukas MOLENDA et al.Základní údaje
Originální název
Stereotactic radiosurgery for ablation of ventricular tachycardia
Autoři
NEUWIRTH, Radek; Jakub CVEK; Lukas KNYBEL; Otakar JIRAVSKÝ; Lukas MOLENDA; Michal KODAJ; Martin FIALA; Petr PEICHL; David FELTL; Jaroslav JANUSKA; Jan HECKO a Josef KAUTZNER
Vydání
EP Europace, Oxford, Oxford University Press, 2019, 1099-5129
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30201 Cardiac and Cardiovascular systems
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.045
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/19:00112603
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Ventricular tachycardia; Stereotactic body radiotherapy; Ablation
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 1. 2021 14:47, Mgr. Tereza Miškechová
Anotace
V originále
Aims Stereotactic body radiotherapy (SBRT) for ventricular tachycardias (VTs) could be an option after failed catheter ablation. In this study, we analysed the long-term efficacy and toxicity of SBRT applied as a bail-out procedure. Methods and results Patients with structural heart disease and unsuccessful catheter ablations for VTs underwent SBRT. The planning target volume (PTV) was accurately delineated using exported 3D electroanatomical maps with the delineated critical part of re-entry circuits. This was defined by detailed electroanatomic mapping and by pacing manoeuvres during the procedure. Using the implantable cardioverter-defibrillator lead as a surrogate contrast marker for respiratory movement compensation, 25 Gy was delivered to the PTV using CyberKnife. We evaluated occurrences of sustained VT, electrical storm, antitachycardia pacing, and shock; time to death; and radiation-induced events. From 2014 until March 2017, 10 patients underwent radiosurgical ablation (mean PTV, 22.15 mL; treatment duration, 68 min). After radiosurgery, four patients experienced nausea and one patient presented gradual progression of mitral regurgitation. During the follow-up (median 28 months), VT burden was reduced by 87.5% compared with baseline (P = 0.012) and three patients suffered non-arrhythmic deaths. After the blanking period, VT recurred in eight of 10 patients. The mean time to first antitachycardia pacing and shock were 6.5 and 21 months, respectively. Conclusion Stereotactic body radiotherapy appears to show long-term safety and effectiveness for VT ablation in structural heart disease inaccessible to catheter ablation. We report one possible radiation-related toxicity and promising overall survival, warranting evaluation in a prospective multicentre clinical trial.