Ian Law, MD, with patient in the UI Stead Family Children’s Hospital Pediatric Specialty Clinic

Cardiac Electrophysiology

Our cardiac electrophysiology program specializes in diagnosing and treating heart rhythm disorders in children and young adults. We combine advanced technology with compassionate care, helping your child’s heart beat steady and strong.
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The heart’s electrical system powers your child’s heartbeat. When that system misfires, it can cause rhythm problems called arrhythmias. Our pediatric electrophysiologists, also known as EP specialists, are experts in finding and fixing these rhythm disturbances.

At University of Iowa Health Care Stead Family Children’s Hospital, we treat children with both simple and complex arrhythmias, including those linked to congenital heart disease. From fainting spells to implanted device care, our team provides clear answers, advanced treatments, and long-term support tailored to your child’s needs. 

Our approach to care

We care for children with heart rhythm conditions using advanced technology, thoughtful planning, and a team‑based approach focused on safety across a lifetime.

  • Noninvasive testing. We use EKGs, ambulatory monitors, and treadmill testing to understand how your child’s heart rhythm behaves at rest and during activity.
  • Minimally invasive procedures. When treatment is needed, many arrhythmias can be corrected using catheter‑based techniques, avoiding open‑heart surgery whenever possible.
  • Radiation‑free 3D mapping. We are one of the only programs in the region to perform more than half of our electrophysiology procedures without X‑rays — an important advantage for children who may need lifelong care.
  • Cryothermal and radiofrequency ablation. For smaller hearts, we often use cryothermal (cold‑energy) ablation, which allows certain procedures to be performed with added safety.
  • Implantable devices and lead extraction. Our electrophysiologists specialize in the placement, long‑term management, and removal or replacement of pacemakers, implantable cardioverter‑defibrillators (ICDs), and their leads.
  • Adult Congenital Heart Disease (ACHD) program. Through our ACHD program, we provide seamless, lifelong care for patients with congenital heart disease as they transition to adulthood.
  • Seamless teamwork. Our electrophysiologists work closely with cardiac surgeons, heart‑failure specialists, genetic counselors, and other experts to address every aspect of your child’s heart care. 

Electrophysiology testing and treatment

Our goal is simple: restore a steady heartbeat and help your child get back to being a kid. Each treatment plan is tailored to your child’s age, diagnosis, and lifestyle.

We offer a comprehensive range of electrophysiology tests and treatments to diagnose heart rhythm conditions and manage them safely and effectively, including:

  • Catheter ablation. A minimally invasive procedure that uses heat or cold energy to eliminate abnormal electrical pathways causing arrhythmias.
  • Pacemaker implantation. Placement of a small, implanted device that helps the heart maintain a regular rhythm when it beats too slowly.
  • Implantable cardioverter‑defibrillator (ICD). Placement of a device that continuously monitors heart rhythm and corrects dangerous fast rhythms when they occur.
  • Leadless pacemakers and conduction‑system pacing. Advanced pacing options using small devices placed directly in the heart to support more natural heart rhythms.
  • Lead extraction. A specialized procedure to safely remove damaged or outdated pacing or defibrillator leads.
  • 3D electro‑anatomic mapping. A radiation‑free technology that creates a detailed map of the heart’s electrical activity to guide precise treatment.
  • Genetic evaluation and family screening. Genetic testing and counseling to identify inherited heart rhythm conditions and guide care for patients and family members.

What to expect

At your child’s first visit, we’ll review their medical history, perform a detailed exam, and may recommend tests such as:

  • Electrocardiogram (EKG). A quick, painless test that records the heart’s electrical activity.
  • Holter or event monitor. Portable monitors worn at home to track heart rhythm over several days or weeks.
  • Exercise testing. A supervised treadmill or bike test that shows how the heart performs during physical activity.
  • Electrophysiology (EP) study. A minimally invasive test that uses thin catheters to identify abnormal electrical pathways in the heart.

If treatment is needed, we’ll explain every option in clear, simple terms and support your family through each step of the decision‑making process.

Should your child see an electrophysiologist?

You should schedule an appointment with our electrophysiology team if your child:

  • Experiences symptoms such as fainting, dizziness, or episodes of a racing or pounding heartbeat
  • Has been diagnosed with an abnormal heart rhythm or an irregular EKG
  • Has a congenital heart defect and develops new or worsening rhythm problems
  • Has a pacemaker or defibrillator that needs ongoing monitoring or follow-up care

Early evaluation helps us identify the cause of symptoms, begin treatment promptly, and provide reassurance for your family.

What we treat

Our cardiac electrophysiology team cares for children and young adults with a wide range of rhythm conditions, including:

  • Supraventricular tachycardia (SVT)
  • Wolff–Parkinson–White (WPW) syndrome
  • Atrial flutter and atrial fibrillation
  • Heart block (AV block)
  • Ventricular tachycardia (VT)
  • Inherited arrhythmia syndromes, such as Long QT syndrome and CPVT
  • Arrhythmias following congenital heart surgery
  • Device‑related rhythm concerns

No matter how complex your child’s condition may be, you have access to the full range of advanced diagnostic tools and treatment options available.

Not sure which Cardiac Electrophysiology provider is right for you?

When you call 1-888-573-5437 we'll help you find a provider who meets your needs.
Call 1-888-573-5437 Request an appointment Refer a patient
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  • Courtney Peterson
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Patient Stories

Heart expertise helps central Iowa boy
September 2, 2016
Ian Law of the UI Stead Family Children's Hospital’s renowned pediatric cardiac electrophysiology program staffs a Des Moines outreach clinic.
Lewis Lentsch
Noah, Isaiah, and Elijah Mulder
July 16, 2014
Noah first came to University of Iowa Stead Family Children's Hospital with genetic heart complications when he was 11. He had been seeing pediatric c...
Mulder family portrait