Initial multicenter clinical experience with the first-generation endoscopic guided laser balloon in Japan

Area of Science:

• Cardiology
• Electrophysiology
• Medical Devices

Background:

• Pulmonary vein isolation (PVI) is the gold standard for atrial fibrillation (AF) ablation.
• The HeartLight laser balloon system was developed to achieve permanent PVI.
• This study evaluates the safety and efficacy of the HeartLight system.

Purpose of the Study:

• To assess the feasibility and outcomes of using the HeartLight laser balloon system for PVI in Japanese patients with AF.
• To determine the efficacy and safety of this novel ablation technology.

Main Methods:

• A prospective study involving 304 patients across 21 investigational sites in Japan.
• Utilized the HeartLight laser balloon system for pulmonary vein isolation.
• Monitored procedure time, fluoroscopic time, and adverse events.

Main Results:

• Successfully isolated 90.4% of targeted pulmonary veins (1062/1175).
• Achieved freedom from AF recurrence at 12 months in 82.1% of patients.
• Reported an overall adverse event rate of 7.2%, including 1.6% phrenic nerve injury and 1.0% stroke.

Conclusions:

• The HeartLight laser balloon ablation is a feasible option for pulmonary vein isolation in Japanese patients suffering from atrial fibrillation.
• Initial results indicate promising efficacy and a manageable safety profile for this technology.