Refractory ventricular tachycardia treated by a second session of stereotactic arrhythmia radioablation

C Herrera Siklody; E Pruvot; P Pascale; R Kinj; R Jumeau; M Le Bloa; C Teres; G Domenichini; A P Porretta; M Ozsahin; J Bourhis; L Schiappacasse

doi:10.1016/j.ctro.2022.07.005

Refractory ventricular tachycardia treated by a second session of stereotactic arrhythmia radioablation

Clin Transl Radiat Oncol. 2022 Aug 27:37:89-93. doi: 10.1016/j.ctro.2022.07.005. eCollection 2022 Nov.

Authors

C Herrera Siklody¹, E Pruvot¹, P Pascale¹, R Kinj², R Jumeau², M Le Bloa¹, C Teres¹, G Domenichini¹, A P Porretta¹, M Ozsahin², J Bourhis², L Schiappacasse²

Affiliations

¹ Department of Cardiology, Lausanne University Hospital (CHUV) and Lausanne University (UNIL), Switzerland.
² Department of Radiation Oncology, Department of Oncology, Lausanne University Hospital (CHUV) and Lausanne University (UNIL), Switzerland.

Abstract

Purpose: Stereotactic arrhythmia radioablation (STAR) is an effective treatment for refractory ventricular tachycardia (VT), but recurrences after STAR were recently published. Herein, we report two cases of successful re-irradiation of the arrhythmogenic substrate.

Cases: We present two cases of re-irradiation after recurrence of a previously treated VT with radioablation at a dose of 20 Gy. The VT exit was localized on the border zone of the irradiated volume, which responded positively to re-irradiation at follow-up.

Conclusion: These two cases show the technical feasibility of re-irradiation to control recurrent VT after a first STAR.

Keywords: Ischemic heart disease; Non-ischemic cardiomyopathy; Stereotactic arrhythmia radioablation (STAR); ventricular tachycardia (VT).

Publication types

Case Reports