Cardiac Electrophysiology Services - Ascension Wisconsin

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Welcome to Wisconsin's Most Comprehensive Electrophysiology Program

Wheaton Franciscan Healthcare is home to many firsts in the state and offers sophisticated technology that isn't available anywhere else in the region to treat heart rhythm disorders:

  • St. Francis is the first hospital in Wisconsin to offer Cardiac CryoAblation, a minimally invasive catheter-based procedure that uses freezing rather than radio-frequency ablation or heat, to cure atrial fibrillation.
  • St. Francis is the first hospital in Wisconsin to receive full Atrial Fibrillation Certification from the Society of Cardiovascular Patient Care.

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Our Approach

Leading-edge Technology Administered by Board Certified Specialists

Our board certified Electrophysiologists treat all types of heart rhythm disorders including the most common arrhythmia - Atrial Fibrillation. Our physicians have access to cutting-edge technology at each of our hospitals. They participate in ongoing research trials which make available therapies that otherwise are not offered to the public. Meet our Electrophysiologists.

What is Electrophysiology?

Cardiac electrophysiology is a branch of cardiac care that treats heart rhythm disorders (arrhythmias) where your heart beats too slowly, too rapidly or irregularly. Symptoms can include:

  • Heart palpitations (racing heart beats)
  • Fainting
  • Dizziness
  • Shortness of breath
  • Fatigue

If left untreated, heart arrhythmia can cause serious medical conditions such as stroke, heart attack and even sudden death.


Heart rhythm disorders (arrhythmias) occur when your heart beats too slowly, too rapidly or irregularly. Learn more about the three most common types of arrhythmias:


Wheaton Franciscan Healthcare facilities offer the following diagnostic electrophysiology services. These tests require a physician referral.

  • Electrocardiogram (ECG) – a snapshot of your current heart rhythm.
  • Echocardiogram – a test to assess your heart function and valves.
  • Holter monitor - (24-48 hour) done on an outpatient basis to monitor arrhythmias.
  • Loop or event monitor – monitors patients for up to one month.
  • Tilt table testing – a noninvasive test used to diagnose syncope (unexplained dizziness or fainting).
  • EP study - This is performed in the hospital where one or more catheters are inserted into a vein to gather the measurements to diagnose abnormally fast or slow heart rhythms. It is typically performed only after other noninvasive tests, such as ECG, have been attempted. Sometimes the problem can be fixed during the test with an ablation.


Our comprehensive capabilities make us the leading electrophysiology program in the region. And some of the most advanced technology to treat complex arrhythmia cases can only be found at Wheaton Franciscan Healthcare.

  • Cardiac CryoAblation - St. Francis is the only hospital in the region to offer Cryoablation - a procedure that uses nitrous oxide to cool the heart tissue and cure atrial fibrillation.
  • Stereotaxis-enabled ablation - Stereotaxis, performed only at The Wisconsin Heart Hospital, uses computer-controlled magnets outside the body to steer catheters to the site of abnormal electrical impulses.
  • Radiofrequency ablation or catheter ablation - This procedure guides a tube into your heart to destroy small areas of heart tissue that may be causing your abnormal heartbeat.
  • ICD implant (defibrillator) - A minimally invasive procedure that uses an implantable cardioverter defibrillator to prevent cardiac arrest in high-risk individuals.
  • Pacemaker insertion - A small battery-operated device that senses when your heart is beating irregularly. It sends a signal to your heart that makes your heart beat at the correct pace.
  • Implantable loop monitors - Monitors are implanted in patients for up to three years for unexplained syncope (passing out) or other heart rhythm disorders.
  • Laser lead extraction - Laser lead extraction is the removal of a lead from a pacemaker or ICD that is not functioning properly.

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MILWAUKEE: 414-647-6996
RACINE: 262-687-8208


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