When it comes to your heart health, settling for anything less than the best is simply not an option. Heart rhythm disorders affect millions of Americans and can range from mildly disruptive to life-threatening, yet many patients go years without receiving an accurate diagnosis or an effective treatment plan. At The Heart Rhythm Institute of Arizona, we believe that every patient deserves access to world-class electrophysiology care delivered with compassion, precision, and a deep commitment to long-term outcomes.
Led by Dr. John Beshai, one of the most respected electrophysiologists in the region, The Heart Rhythm Institute of Arizona has built a reputation for excellence in the diagnosis and treatment of complex heart rhythm conditions.
About Phoenix, AZ
Phoenix is the fifth-largest city in the United States, home to more than 1.6 million residents and serving as the cultural and economic hub of the greater Maricopa County region. Known for its warm desert climate, thriving arts scene, and world-class healthcare infrastructure, Phoenix attracts families, retirees, and professionals from across the country. The city’s year-round sunshine and outdoor lifestyle make it a beloved place to live.
For Phoenix residents managing heart rhythm disorders, access to a highly skilled electrophysiologist is not just convenient, it is essential. The Heart Rhythm Institute of Arizona proudly serves the Phoenix community with advanced, compassionate cardiac care led by Dr. John Beshai, an expert in the diagnosis and treatment of complex heart rhythm conditions. Whether you are newly diagnosed or seeking a second opinion on a long-standing arrhythmia, our team is committed to delivering the highest standard of electrophysiology care.
Conditions We Treat
At The Heart Rhythm Institute of Arizona, Dr. Beshai and his team have extensive experience diagnosing and treating a wide spectrum of cardiac conditions. Many patients live with symptoms for months or even years before receiving an accurate diagnosis. Our practice is dedicated to changing that by offering thorough evaluations and individualized treatment plans tailored to each patient’s unique situation.
Some of the conditions we treat include the following:
- Atrial Fibrillation: Is commonly known as AFib and occurs when the upper chambers of the heart beat chaotically and out of sync with the lower chambers, often causing palpitations, fatigue, shortness of breath, and an elevated risk of stroke.
- Supraventricular Tachycardia (SVT): Supraventricular tachycardia is a condition characterized by sudden episodes of a racing heartbeat that originates above the ventricles. These episodes can come on without warning and may last anywhere from a few seconds to several hours.
- Ventricular Tachycardia: Ventricular tachycardia is a fast, abnormal heart rhythm that originates in the lower chambers of the heart. It can be a life-threatening condition, particularly in patients who have a history of heart disease or prior heart attacks. Symptoms may include dizziness, lightheadedness, chest pain, or loss of consciousness.
- Syncope (Fainting): Syncope, or fainting, is a sudden and temporary loss of consciousness caused by a brief drop in blood flow to the brain. While syncope can have many causes, a significant number of cases are directly related to underlying heart rhythm problems.
- Arrhythmias (Irregular Heartbeat): An arrhythmia refers to any abnormality in the timing or pattern of the heartbeat. The heart may beat too fast, too slow, or with an irregular pattern. Some arrhythmias are harmless, while others require prompt medical attention.
- Congestive Heart Failure (CHF): Congestive heart failure occurs when the heart is no longer able to pump blood efficiently enough to meet the body’s demands. It is often accompanied by arrhythmias that can worsen the condition and accelerate its progression.
Check out our condition overview page to look at all the conditions we treat at our office.
Diagnostic Options We Offer
Accurate diagnosis is the foundation of effective treatment. At The Heart Rhythm Institute of Arizona, Dr. Beshai utilizes a comprehensive suite of state-of-the-art diagnostic tools to capture a complete picture of each patient’s cardiac electrical activity. Because heart rhythm disorders can be intermittent and unpredictable, having access to multiple diagnostic modalities is critical for ensuring that nothing is missed.
The diagnostic options we offer include an electrocardiogram, Holter monitoring, exercise stress test, cardiac ultrasound, and athletic physicals. Take a peek at our diagnostics page to learn more.
The Procedures We Provide at The Heart Rhythm Institute of Arizona
When diagnostic evaluation reveals the need for intervention, patients can trust that they are in the most capable hands available in the region. Dr. Beshai performs a full range of advanced electrophysiology procedures at The Heart Rhythm Institute of Arizona, offering patients access to innovative, minimally invasive treatments that can dramatically improve heart rhythm control and overall cardiac health.
The procedures we provide include everything from hybrid AFib therapy, radiofrequency cardiac ablation, cryoablation, pacemaker implantation, cardiac resynchronization therapy, WATCHMAN device implantation, and cardioverter defibrillator. For more information, take a look at our procedures page.
Schedule a Consultation
Living with an undiagnosed or poorly managed heart rhythm disorder does not have to be your reality. Dr. Beshai and the dedicated team at The Heart Rhythm Institute of Arizona are here to help Phoenix residents get the answers, care, and relief they deserve. Whether you are experiencing palpitations, dizziness, fainting episodes, or have recently been diagnosed with an arrhythmia, we encourage you to take the first step toward better heart health by scheduling a consultation today. Call our office or message us via our online contact form.