This study tests a special heart tool called the **THERMOCOOL SMARTTOUCH catheter** and **TRUPULSE generator**. It's used for people with paroxysmal atrial fibrillation (PAF), a type of irregular heartbeat that can cause bad blood flow. The goal is to see if this tool safely and effectively helps patients.

To join, you need to have had PAF symptoms recently and tried but not been helped by at least one heart medicine. You have to be willing to attend tests before, during, and after treatment. You cannot join if you have other serious heart problems, some lung diseases, or are pregnant. You also shouldn't have had certain heart surgeries or be in other studies.

• The study checks if a new tool helps treat irregular heartbeats.
• You'll need to attend tests and follow-ups.
• People with some heart or lung conditions shouldn't join.