Coronary artery disease

Cardiologists at Ascension St. John in Oklahoma deliver advanced care for coronary artery disease (CAD).

Get care for coronary artery disease in Oklahoma

Cardiologists at Ascension St. John in Oklahoma deliver advanced care for coronary artery disease (CAD).

Why choose us

When you choose Ascension St. John for your heart care, your doctor is part of a program with 21 cardiologists and cardiac surgeons known for providing personalized care for heart disease prevention, diagnosis, treatment and recovery. Our heart program offers advanced screenings and diagnostics from a team who cares for more hearts than any other health system in Oklahoma.

Understanding coronary artery disease

Clogged arteries, also known as coronary artery disease (CAD), is the most common type of heart disease in the United States. CAD happens when plaque, including fats and cholesterol, build up on your artery walls. Plaque buildup, called atherosclerosis, can slow or completely block blood flow to your heart. This can lead to more serious heart conditions, such as heart attack. Cardiologists at Ascension St. John deliver advanced care for the prevention, diagnosis and treatment of CAD.

Symptoms of CAD

Common symptoms of CAD include:

  • A cold sweat
  • Chest pain or discomfort (angina)
  • Light-headedness
  • Nausea
  • Pain or discomfort in the arms or shoulder
  • Shortness of breath
  • Weakness

Clinical trials

Our doctors are committed to being leaders in cardiovascular research, working to help improve how we diagnose and treat heart and vascular diseases. You can talk to your cardiologist if you are interested in participating in clinical trials.

COSIRA-II
Efficacy of the coronary sinus reducer in patients with refractory angina II

LIBREXIA-ACS
A study of milvexian in participants after a recent acute coronary syndrome

TECTONIC
Tectonic CAD IVL IDE Study

TRANSFORM
A randomized comparison of stage-based care versus risk factor-based care for prevention of cardiovascular events

How to get care

stethoscope

If you are at risk for CAD or have been diagnosed, talk with one of our specialists. Every appointment starts with a conversation about how you are feeling, any new symptoms or concerns. Your care team will take the time to answer all your questions — big and small.

Get a second opinion

It's easy to get a second opinion at Ascension St. John. We can review your medical records and healthcare history to answer your questions and discuss options for heart surgery.

When you are facing a new diagnosis or are deciding on a surgical treatment plan, there’s a lot to think about. If you are looking for a second opinion for advanced heart care, our cardiologists can also connect you with the right specialists for minimally invasive surgery, including transcatheter aortic valve replacement (TAVR). Our heart and vascular specialists can provide a second opinion, based on our experience and as part of a national care team.

Before your appointment, check with your insurance company to find out if a second opinion is covered. We can request your medical records on your behalf, so that they can be shared with your care team before your arrival.

If you are experiencing a life-threatening emergency, go directly to the ER or call 911.

All registered marks are property of their respective owners. All rights reserved.

Stories you'll love

Angela and her family

Helping the next generation of healthcare workers

February 4, 2026

Ascension St. John workforce development manager felt called to come back to the place where she started her career to help the Tulsa community explore careers in healthcare.

Read more stories