What does this research mean for the field?

CS-GCV ablation effectively manages epicardial VT storm in post-valve surgery patients, being safer than retrograde aortic access. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.SUPPORTS_CONSENSUS.

What question did this study set out to answer?

The research aims to evaluate the effectiveness of CS-GCV ablation in managing epicardial ventricular tachycardia (VT) originating from the left ventricular outflow tract.

January 23, 2026Open Access

Epicardial Ventricular Tachycardia Originating From the Left Ventricular Outflow Tract

Key Result

CS-GCV ablation effectively manages epicardial VT storm in post-valve surgery patients, being safer than retrograde aortic access.

Key Points

The research aims to evaluate the effectiveness of CS-GCV ablation in managing epicardial ventricular tachycardia (VT) originating from the left ventricular outflow tract.
Utilized preprocedural imaging and intraoperative navigation techniques.
Employed PTCA wire mapping for targeting during the ablation procedure.
Applied intracardiac echocardiography to enhance safety in the procedure.
CS-GCV ablation successfully managed epicardial VT storms despite anatomical challenges.
PTCA wire mapping optimized the targeting of ablation sites.
The procedure showed improved safety compared to retrograde aortic access for patients with previous valve surgery.

Structured PICO

Does CS-GCV ablation safely and effectively manage epicardial VT storm originating from the LVOT compared to retrograde aortic access in post-valve surgery patients?

Population

Patients with epicardial ventricular tachycardia (VT) storm originating from the left ventricular outflow tract, including post-valve surgery patients.

Intervention

Coronary sinus-great cardiac vein (CS-GCV) ablation guided by preprocedural imaging, intraoperative navigation, PTCA wire mapping, and intracardiac echocardiography.

Comparator

Retrograde aortic access

Outcome

Procedural success and safety in managing epicardial VT storm

CS-GCV ablation using advanced imaging and mapping techniques offers a safe and effective approach for managing epicardial LVOT VT storm, particularly avoiding retrograde aortic access in post-valve surgery patients.

Main Result

Absolute Event Rate: 0% vs 0%

Abstract

Epicardial VT storm can be managed via CS-GCV ablation despite anatomical challenges. Preprocedural imaging/intraoperative navigation ensure success; PTCA wire mapping optimizes targeting, and intracardiac echocardiography ensures safety. It is safer than retrograde aortic access for post-valve surgery patients.