This study focuses on treating people with Paroxysmal Atrial Fibrillation (PAF), which is when the heart beats irregularly, causing poor blood flow. The treatment uses a special tool called the THERMOCOOL SMARTTOUCH Surround Flow (SF) Catheter, paired with a TRUPULSE Generator. This system helps isolate the atrial pulmonary veins, which are key in managing the heart's rhythm. People can join the study if they've had at least two PAF episodes in the past six months and have tried but not succeeded with certain heart medications.

Key Points:

• The study involves several pre- and post-treatment tests and follow-ups.
• Participants must be able to provide consent and follow study requirements.
• There are specific conditions that could exclude someone from participating, like certain heart issues or recent heart surgeries.

This study aims to see if this new treatment is safe and works well for people with PAF. Participants should consider their current health and previous treatments before joining.