Atrial fibrillation (AFib) is one of the most common heart rhythm disorders, affecting millions of people worldwide. It can lead to serious health complications such as stroke, heart failure, and blood clots if left untreated. That's why seeing an atrial fibrillation specialist—a cardiologist with expertise in managing irregular heart rhythms—is essential for accurate diagnosis, advanced treatment atrial fibrillation specialist

What is Atrial Fibrillation?

Atrial fibrillation is a type of arrhythmia—an irregular and often rapid heartbeat. Instead of beating normally, the heart's upper chambers (atria) quiver or beat out of coordination with the lower chambers (ventricles).

Common Symptoms of AFib:

  • Irregular or rapid heartbeat

  • Fatigue

  • Dizziness or lightheadedness

  • Chest discomfort

  • Shortness of breath

  • Anxiety

  • Reduced ability to exercise

Some people with AFib experience no symptoms at all. That's why routine screening and early consultation with a specialist in atrial fibrillation is so important—especially if you're over 60 or have underlying conditions like high blood pressure or diabetes.

Why You Need an Atrial Fibrillation Specialist

Managing atrial fibrillation is not just about controlling your heartbeat—it's about preventing serious complications like stroke, which AFib increases the risk of by up to 5 times. An atrial fibrillation specialist focuses on:

  • Accurate diagnosis through tests like ECG, Holter monitor, and echocardiogram

  • Determining the type of AFib (paroxysmal, persistent, or permanent)

  • Developing a tailored treatment plan

  • Monitoring and adjusting medications

  • Recommending advanced interventions such as ablation or pacemaker implantation (if needed)

Meet Dr. Sunny Malhotra: A Leading Atrial Fibrillation Specialist

If you're looking for an experienced atrial fibrillation specialist in Ontario, Dr. Sunny Malhotra is a highly trained cardiologist offering expert diagnosis and individualized treatment plans. With U.S.-based training and a strong background in internal medicine and cardiology, Dr. Malhotra has treated patients across Canada and the United States with a range of complex arrhythmias, including AFib.

Why patients trust Dr. Malhotra:

  • Specialized experience in arrhythmia management

  • Focus on both lifestyle and clinical intervention

  • Personalized care that explains every step

  • Use of the latest diagnostic and monitoring technology

  • Options for private cardiology consultations

How Atrial Fibrillation is Diagnosed

Your specialist may perform the following:

  • Electrocardiogram (ECG): To detect AFib at the moment

  • Holter Monitor: A 24–48 hour heart monitor to catch intermittent episodes

  • Event Monitor or Implantable Loop Recorder: For long-term rhythm tracking

  • Echocardiogram: An ultrasound of the heart to assess structure and function

  • Blood Tests: To check for thyroid problems or other causes of AFib

Treatment Options Offered by AFib Specialists

Treatment depends on the type and severity of your AFib. Dr. Sunny Malhotra offers a wide range of treatments, including:

1. Medications

  • Rate control drugs (e.g., beta blockers, calcium channel blockers)

  • Rhythm control drugs (antiarrhythmic medications)

  • Blood thinners (anticoagulants) to reduce stroke risk

2. Electrical Cardioversion

A procedure that delivers a small shock to restore normal rhythm.

3. Catheter Ablation

A minimally invasive procedure to destroy abnormal electrical pathways in the heart.

4. Lifestyle Modification

Dr. Malhotra works closely with patients to improve heart health through:

  • Weight management

  • Blood pressure control

  • Sleep apnea treatment

  • Reducing alcohol and caffeine

  • Stress management

When to See an Atrial Fibrillation Specialist

You should see a specialist if:

  • You've been diagnosed with AFib by your primary care physician

  • You experience irregular heartbeats or unexplained fatigue

  • You have existing heart disease and notice new symptoms

  • You're at risk for stroke and want to manage it proactively

  • You're seeking a second opinion or private cardiology consultation