Heart Care Services: Electrophysiology and Arrhythmias

Electrophysiology focuses on understanding, diagnosing and treating heart rhythm problems or arrhythmias by studying the heart’s electrical activity and pathways.

Equipped with the latest state-of-the-art technology, UF Health Shands Hospital’s electrophysiology experts offer a wide range of procedures that diagnose and treat heart problems. This one-of-a-kind care includes non-invasive evaluation and therapeutic services for patients with arrhythmias, such as atrial fibrillation, tachycardia, atrial flutter and congenital heart rhythm problems.

In collaboration with the thoracic and cardiovascular surgery team, more complex procedures, such as the minimally invasive Maze procedure, are also offered.


Our electrophysiologists use various techniques to diagnose problems with heart rhythms, including:

  • Electrocardiography
  • Electrophysiologic studies
  • Non-invasive arrhythmia evaluation
  • Event or Holter monitoring
  • Tilt table testing
  • Evaluation of defibrillator function and reprogramming
  • Transtelephonic pacemaker monitoring
  • Carelink (remote monitoring for devices)


To treat arrhythmias or other problems with the heart’s electrical system, our team uses:

  • Cardiac ablation procedures (catheter ablation, cryoablation, radiofrequency ablation)
  • Radiofrequency ablation for supraventricular tachycardia, atrial flutter/fibrillation, accessory pathways (Wolff-Parkinson-White syndrome) and ventricular tachycardia
  • Pacemaker/ICD, including complex extraction procedures
  • Biventricular device implantation
  • Permanent pacemaker implantation
  • Lead extraction
  • Curative surgery for WPW and other SVT, when not ablatable
  • Subendocardial resection for ventricular tachycardia
  • Treatment of refractory arrhythmias that have failed traditional therapies, including novel approaches such as pericardial ablation for refractory ventricular tachycardia

Working closely with our team of thoracic cardiovascular surgeons, we also offer advanced arrhythmia surgeries, such as the minimally invasive procedures to treat atrial fibrillation or ventricular tachyarrhythmias.

Atrial Fibrillation

UF Health cardiologists and cardiovascular surgeons collaborate to offer the full spectrum of care for patients with atrial fibrillation. Treatments range from medicine to surgery, and each patient’s treatment plan is tailored specifically to what is best for them.

Therapies include:

  • Medications to restore a normal rhythm
  • Novel blood-thinning medications to prevent stroke
  • Cardioversion to shock the heart back into normal rhythm
  • Catheter-based ablation interventions to eliminate the trigger points on the heart that enable abnormal rhythms, including cryoballoon therapy
  • The “Mini-Maze” operation and other minimally invasive pulmonary vein isolation procedures
  • Traditional open “Maze” surgery for atrial fibrillation patients who are refractory to the above therapies