Atrial fibrillation, commonly known as AFib, is the most common cardiac arrhythmia in the United States. It affects millions of adults and significantly increases the risk of stroke, heart failure, and other cardiovascular complications when not properly managed. For patients in the Phoenix area seeking advanced solutions, a new technology is changing the landscape of rhythm care.
At The Heart Rhythm Institute of Arizona, John F. Beshai, MD now offers Pulse Field Ablation, an innovative approach to treating atrial fibrillation. As a board-certified cardiac electrophysiologist, Dr. Beshai is recognized for delivering advanced, evidence-based treatment options to patients throughout the region.
Understanding Atrial Fibrillation
AFib occurs when abnormal electrical signals disrupt the heart’s normal rhythm, causing the upper chambers to beat irregularly and often rapidly. These irregular impulses frequently originate near the pulmonary veins and interfere with coordinated heart function.
Patients with AFib may experience:
• Palpitations
• Fatigue
• Shortness of breath
• Dizziness
• Reduced exercise tolerance
Some individuals have occasional episodes, while others develop persistent AFib that requires procedural intervention. Although medications can help control symptoms, they do not work for every patient and may not provide lasting rhythm stability.
What Is Pulse Field Ablation?
Pulse Field Ablation is a minimally invasive catheter-based procedure designed to treat atrial fibrillation at its source. Traditional ablation techniques, such as radiofrequency ablation, use heat, while cryoablation uses freezing temperatures to scar problematic tissue. Pulse Field Ablation uses precisely controlled electrical pulses to selectively target the heart cells responsible for abnormal rhythms.
This tissue-selective technology is a significant advancement. By focusing specifically on cardiac muscle cells, Pulse Field Ablation minimizes the impact on surrounding structures. Because it does not rely on thermal energy, it reduces the risks associated with heat or cold-based ablation techniques.
During the procedure, specialized catheters are inserted through a vein in the leg and guided to the heart. Electrical pulses are delivered to isolate the abnormal electrical pathways contributing to AFib. Most patients return home the same day.
Why This Advancement Matters
Pulse Field Ablation represents meaningful progress in electrophysiology. It combines precision with efficiency and expands the treatment options available for patients with atrial fibrillation.
Key advantages include:
• Targeted treatment of abnormal heart tissue
• Reduced risk of unintended injury to nearby structures
• Minimally invasive technique
• Same-day discharge for most patients
For patients who have not achieved adequate rhythm control with medication, or for those who have experienced recurrence after a prior ablation, this advanced option offers renewed opportunity for long-term rhythm management.
Determining If You Are a Candidate
Not every patient with AFib requires ablation, and not every patient is suited for the same procedure. A comprehensive evaluation is essential.
Patients who may benefit from Pulse Field Ablation often:
• Have symptomatic or persistent atrial fibrillation
• Continue to experience episodes despite medication
• Have undergone previous ablation with recurrent arrhythmia
• Are seeking a minimally invasive rhythm control solution
Dr. Beshai conducts a detailed review of each patient’s medical history, diagnostic testing, and prior treatments before recommending a plan. His individualized approach ensures that care is aligned with both clinical findings and patient goals.
Leading Electrophysiology Care in Phoenix
When managing a complex rhythm disorder, expertise matters. Dr. John F. Beshai is a board-certified electrophysiologist with extensive experience in advanced ablation therapies, including radiofrequency ablation, cryoablation, and Pulse Field Ablation.
Patients across Phoenix and surrounding communities turn to The Heart Rhythm Institute of Arizona for advanced cardiac care delivered with precision and clarity. By offering the latest technology alongside established treatment methods, Dr. Beshai provides comprehensive rhythm management under one roof.
His focus remains consistent: accurate diagnosis, thoughtful procedural planning, and long term stability for every patient.
Take the Next Step
Living with atrial fibrillation can affect your energy, comfort, and confidence. Advances in electrophysiology now make it possible to treat AFib with greater precision than ever before.
If you are experiencing ongoing symptoms or questioning whether your current treatment plan is enough, a consultation can provide direction. Pulse Field Ablation may represent an advanced solution tailored to your specific condition.
To learn more or schedule an evaluation at The Heart Rhythm Institute of Arizona, contact our office today. Expert guidance and advanced AFib treatment are now available in Phoenix.
Dr. Beshai is a board-certified electrophysiologist internationally renowned and respected for his expertise and research. Having published in major medical journals and travelled all over the world to present research, he is dedicated to providing innovative, state-of-the-art care to his patients.