Cardiology

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Arrhythmia Service (Electrophysiology)

Dr.George Thomas

Arrhythmia Service (Electrophysiology)

Since the Cardiac Electrophysiology Laboratory at Weill Cornell Medical Center first opened its doors in 1987, it has grown into one of the busiest and most experienced laboratories in the country. We offer the full complement of cardiac rhythm management with diagnostic and therapeutic interventions utilizing the most advanced equipment and techniques. Through early detection and treatment, severe arrhythmias (abnormal heart rhythms) can be diagnosed and treated, with the goal of relieving symptoms and preventing the common causes of sudden cardiac death.

For patients with palpitations (fast or abnormal heart beats), electrophysiologic studies performed with temporary electrode catheters placed into the heart through the blood vessels can reveal abnormal electrical circuits within the heart that cause the arrhythmia.  For patients with arrhythmias, catheter ablation can be performed to treat the abnormal tissue within the heart and provide curative therapy.  Patients who are at risk for arrhythmias, such as those with advanced heart disease (hyperlink to CHF webpage) or coronary artery disease (hyperlink to cath webpage), may benefit from implantation of small electronic devices (implantable cardioverter-defibrillator, biventricular devices) into the body to improve the function of the heart and/or protect them from sudden death. 

Services provided include:

  • Diagnostic cardiac electrophysiology studies
  • Catheter ablation of arrhythmias (including supraventricular tachycardias, ventricular tachycardias, and atrial fibrillation)
  • Pacemaker implantation
  • Implantable Cardioverter-defibrillator implantation (ICD)
  • Cardiac resynchronization therapy (bi-ventricular pacing)
  • Pacemaker and ICD lead removal
  • Insertable loop recorder (ILR) implantation
  • Electrical cardioversion
  • Tilt table testing
  • Left atrial appendage occlusion (for stroke prevention in atrial fibrillation patients)
  • Pacemaker and ICD follow-up clinic
  • Office consultation for evaluation and management of arrhythmias

Request an Appointment

To make an appointment to see one of our physicians with expertise in cardiac arrhythmias, you may contact our office at 212-746-2158

New Patients and Initial Consultations:

To help you and the physician prepare for your visit, below is a list of items that our office requires prior to scheduling your appointment:

  • Copies of cardiac related medical records such as EKGs, Holter and/or event monitor reports, echocardiograms, stress test, catheterization reports, any MRI or CT scan reports and imaging discs and any previously performed electrophysiologic procedures. You may also sign this  Medical Records Release Form.pdf and our office will request the records directly. 

Established Patients:

In addition to calling our office, you can request an appointment online, using Weill Cornell Connect. We will make every effort to contact you within 24 hours.

Our staff is here to help coordinate your care. They will provide you with information on our physicians, their areas of expertise and help arrange for your visit and other testing when appropriate.

Our Physicians

Faculty Title Phone
Headshot of Bruce Lerman
Bruce B. Lerman, M.D.
Chief, Professor of Medicine, Chief of Cardiology, Director Electrophysiology Laboratories 212-746-2169
Headshot of Jim Cheung
Jim Cheung, M.D.
Associate Professor of Medicine, Director Cardiac Electrophysiology Fellowship Program, Division of Cardiology, Cardiac Electrophysiology Laboratory 212-746-2158
Headshot of James Ip
James Ip, M.D.
Assistant Professor of Medicine 212-746-2158
Headshot of Christopher Liu
Christopher F. Liu, M.D.
Assistant Professor of Medicine 212-746-2158
Headshot of Steven Markowitz
Steven M. Markowitz, M.D.
Professor of Medicine 212-746-2158
Headshot of George Thomas
George Thomas, M.D.
Assistant Professor of Medicine 212-746-2158

Make an Appointment

(212) 746-2158

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Weill Cornell Medical College
Division of Cardiology
520 East 70th Street
Starr 443
New York, NY 10021