The Shifa heart centre’s Arrhythmia Service exists to provide patients with timely and accurate diagnoses and therapies. We do this by using advanced technologies and working as a team with you, your family and your physician to help you continue or return to your normal daily activities as soon as possible. 

History and Goals

The Arrhythmia Service began in the early 1990’s with two goals:

  • to provide leading edge clinical care for patients with abnormal heart rhythms (arrhythmias)
  • Conduct research to determine the cause of arrhythmias and develop therapies for patients who have arrhythmia associated problems.

As the first such service in pakistan, the Shifa’s Arrhythmia Service rapidly took on a leadership role. Since the development and use of the first implantable cardioverterdefibrillator (ICD) in 1980, ICDs have saved hundreds of thousands of lives and are currently recognized as the most effective treatment to prevent sudden cardiac death.

Doctors on our Arrhythmia Service focus their efforts on catheter ablation, a minimally invasive technique that can cure a number of arrhythmias. Other areas of major interest include; the causes and treatment of atrial fibrillation, the diagnosis and treatment of inheritable arrhythmias such as arrhythmogenic right ventricular dysplasia, the prevention and treatment of both common and rare problems that may cause sudden cardiac death,  as well as further improving pacemaker and ICD.

Our staff of physicians, nurses, and technologists is available to explain tests and procedures to you and your family, answer your questions, and guide you as you proceed through the diagnostic and treatment process.


Electrophysiology is the study of electrical activity in the heart; how the heart beats. Our doctors are cardiologists who specialize in the electrical system of the heart.

Cardiac electrophysiologists (arrhythmia specialists) rely on a patient’s medical history and the results of a variety of procedures to diagnose heart rhythm abnormalities. Once the electrical disorder is diagnosed, the arrhythmia specialist works with your doctor to determine the risk of the heart rhythm abnormality and recommend treatment. Together, you, your primary care doctor or general cardiologist, and the arrhythmia specialist decide on the most appropriate treatment for you.

To be evaluated for an abnormal heart rhythm, one of our physicians will first examine you at the Shifa International Outpatient Center, you may be asked to undergo one or more of the following tests:

  • An electrocardiogram (called ECG or EKG), records your heart’s electrical activity during rest to determining abnormal rhythms
  • A Holter monitor to record your heart’s activity during a 24-hour period or longer. Small sensors applied to your skin are connected to a small recording device that is strapped or belted to your body. This is useful for detecting abnormalities that may not occur during an electrocardiogram
  • An event monitor, which records the heart rhythm only when activated and is usually worn for about a month.
  • An exercise stress test also known as treadmill tests, help determine irregular heart rhythms during exercise. During this test, the heart’s electrical activity is monitored through small metal sensors applied to your skin while you exercise on a stationary bicycle or treadmill.
  • A tilt table test may be in order if you experience lightheadedness or fainting. You will be placed on a table that starts in a horizontal position and is then tilted upward at different angles while your heart rate and blood pressure are measured.

Based on your diagnostic exam and test results, our physicians will work with you on a treatment plan which may include:

  • managing electrical abnormalities with medication
  • using radio wave energy to destroy specific areas of the heart causing abnormal rhythm (See: Minimally-Invasive Radiofrequency Ablation for Atrial Fibrillation)
  • implanting a pacemaker that triggers the heart if it is beating too slowly (See: Pacemaker)
  • implanting a defibrillator to keep the heart from beating too rapidly (See: Implantable Cardiac Defibrillators)

We are pleased to provide all of our patients with a Comprehensive Guide to Our Electrophysiology and Arrhythmia Service . Please feel free to review this information prior to your appointment and don’t hesitate to ask any questions or request additional information.