For years, Atrial Fibrillation (AFIB) has been treated using thermal energy — either heat (radiofrequency) or freezing (cryoablation). While these approaches have helped many patients, they can also carry risks because thermal energy may affect surrounding structures near the heart.
Today, we are entering a new era in AFIB care.
Pulsed Field Ablation is a breakthrough, non-thermal technology designed to treat AFIB with greater precision and enhanced safety.
Instead of heat or freezing, PFA uses carefully controlled electrical pulses to selectively target heart muscle cells responsible for abnormal rhythm. This process, known as irreversible electroporation, allows treatment of AFIB while significantly reducing unintended injury to nearby structures.
This is not simply an incremental advancement — it represents a true paradigm shift in AFIB ablation.
One of the primary concerns with traditional thermal ablation has always been collateral damage to surrounding tissues. Because the esophagus, phrenic nerve, and pulmonary veins lie close to the left atrium, they may be affected during conventional ablation procedures.
PFA’s tissue-selective properties significantly reduce the risk of serious complications such as:
• Atrioesophageal fistula — a rare but life-threatening complication
• Phrenic nerve injury
• Pulmonary vein stenosis
• Excess inflammation and chest discomfort due to pericardial irritation
By minimizing thermal injury, PFA also offers potential benefits including:
• Less post-procedural inflammation
• Reduced chest discomfort
• Shorter procedure times
• Faster recovery and return to normal activities
Patients can move forward with confidence, knowing their treatment prioritizes both effectiveness and safety.
Pulsed Field Ablation has been recognized by the Heart Rhythm Society for its safety profile and effectiveness in maintaining normal rhythm. Clinical data continue to demonstrate strong outcomes with improved procedural safety margins.
Modern AFIB treatment should aim not only for rhythm control — but rhythm control with the highest level of safety.
Dr. Alireza Nazeri is proud to offer Pulsed Field Ablation at Mobitz AFIB Clinic and affiliated facilities, including Houston Methodist Hospital.
As a board-certified cardiac electrophysiologist specializing in complex arrhythmias, Dr. Nazeri is committed to bringing leading-edge innovation to patients while maintaining a deeply personalized approach to care.
The mission is clear: deliver the most advanced, safest, and most effective AFIB treatments available.
If you have been diagnosed with Atrial Fibrillation, continue to experience symptoms despite medication, or are considering ablation therapy, it may be time to explore this next-generation treatment option.
📞 Call 713-909-3166 to schedule a consultation and learn whether Pulsed Field Ablation is right for you.
The future of AFIB treatment is here — safer, faster, and more precise than ever before.
Schedule your AFib Screening and Early Detection Consultations
Dr. Alireza Nazeri
P. 713-909-3166
P. 713-684-8207
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