Blog

OHI named PE Center of Excellence by the PERT Consortium™

Tulsa, Okla. (March 10, 2025) - The PERT Consortium™, a leading non-profit dedicated to improving outcomes for patients with pulmonary embolism (PE) through research, education and collaboration, recently named Oklahoma Heart Institute (OHI) as one of four PE Centers of Excellence in the U.S. and the only such center in Oklahoma. OHI successfully completed a rigorous application and evaluation process, demonstrating their commitment to providing exceptional, evidence-based care for PE patients during a pilot program for the PE Centers of Excellence (CoE) Initiative.

Pulmonary... Read More »

Dancing Through Life: Kathleen Marshall’s Journey Back to the Dance Floor

For Kathleen Marshall, life has always had a rhythm, and that rhythm was dance. Whether it was a ballroom waltz, a lively salsa or just spinning around the kitchen with her boyfriend, dance was her passion. Marshall’s infectious energy and love for movement made her the heart of every party.

“It keeps you young!” said Marshall. At 73 years old, she found herself dancing several times a week around Tulsa. But that dancing slowed down and eventually came to a halt early in 2024, as her atrial fibrillation symptoms worsened. 

The Battle with AFib

Marshall began... Read More »

ECMO staff deliver timely care to medical transport driver

The phrase “just in the nick of time” can be traced back to 16th century England when the word “nick” meant “the critical moment.”

For Jeff Cowan, a 63-year-old medical transport driver, that phrase also describes the care he received at Oklahoma Heart Institute (OHI) that saved his life.

The Tulsa resident was visiting his doctor after hip replacement surgery at another Oklahoma hospital. Cowan asked the doctor about his leg, which was swollen below the knee. The doctor asked how long he had been wearing compression socks and suggested he begin wearing loose-fitting socks... Read More »

Spotting the Warning Signs of Stroke Critical for Successful Treatment

Do you know the warning signs for a stroke? Would you recognize them in someone else? What about yourself? We often think if something like a stroke has occurred, we would realize it immediately, right? As it turns out, nearly 70 percent of people who have suffered a minor stroke don’t recognize the symptoms at all. Seeking medical treatment within the first three hours is critical to successful treatment. However, according to a study published in the journal Stroke, 30 percent of stroke patients wait more than 24 hours to contact their doctor or head to the emergency room.

How to... Read More »

Cardiac scan identifies blocked arteries in patient without symptoms

It was Mark Nichols’ care and concern for his wife’s health, given her family history of heart attacks, that led him to join her for a cardiac CT angiogram scan at Oklahoma Heart Institute.

“Her brother passed away at age 50 from a sudden heart attack even though he never smoked and was a healthy guy,” said Nichols, a partner in a local construction company. “I told her that if she would take the test, I would sign up and join her, so we decided to do it.”

Afterward, Nichols’ wife Larrita, an employee of Hillcrest Medical Center, received excellent test results. His results,... Read More »

Defining Heart Failure

What is heart failure?

If you have heart failure, you're not alone. About 6 million Americans are currently living with it. In fact, it's one of the most common reasons people age 65 and older go into the hospital. It can take years for heart failure to develop. Heart failure symptoms usually develop over time as your heart becomes weaker and less able to pump blood that your body needs. Heart failure usually results in an enlarged heart (left ventricle). Heart failure is a serious long-term (chronic) condition. But you can live a full, active life with the right medical treatment... Read More »

Cardiologist's wake-up call: How a $499 Heart Scan raised red flags for Dr. David Sandler

After 20 years of guiding patients to maintaining healthy hearts at Oklahoma Heart Institute (OHI), cardiologist David Sandler, M.D., decided it was time to take care of his own health in 2023. His cholesterol levels were trending a little high, so he opted to take advantage of OHI's $499 heart scan special in February.

Dr. Sandler is a cardiac electrophysiologist at OHI who specializes in complex ablation and atrial fibrillation management. He underwent the scan, known as a cardiac computed tomography (CT) angiogram in February of 2023, which uses angled X-rays to construct... Read More »

Maximizing Your Doctor's Appointment: Insights from Dr. Tyler Ellington

Visiting the doctor can sometimes feel overwhelming, but it doesn't have to be. Understanding how to make the most out of your time with your physician can greatly impact the quality of care you receive. Dr. Tyler Ellington, a seasoned cardiologist at the Oklahoma Heart Institute, shared invaluable insights into preparing for a doctor's appointment.

What Information Matters Most?

Dr. Ellington emphasizes the importance of coming prepared. Medication lists or actual pill bottles are gold standards for an accurate medication review. “Using the medicines that are in your cabinet,... Read More »

Atrial fibrillation signs and symptoms - AFib Awareness Month

*/

Atrial fibrillation (AFib) is frequently characterized by a fluttering sensation in the chest. It is a type of irregular, often rapid heartbeat resulting from the atria beating out of sync with the ventricles. While AFib itself isn't immediately life-threatening, it can elevate your risk of developing blood clots and stroke.

David Sandler, M.D.

David Sandler, M.D. is an electrophysiologist at Oklahoma Heart Institute (OHI). He shares risk factors for AFib, what issues the irregular beat can cause and how to avoid AFib. Mike Roberson, a patient with OHI, reflects on his... Read More »

Stegemann surpasses 13 years of caring for patients at OHI

Lauren E. Stegemann, APRN-CNS, is an advanced practice provider in Oklahoma Heart Institute’s cardiac interventional unit. The Tulsa native has worked at OHI since 2010, when she completed nursing school. She started in the cardiac catheterization lab, and then moved into her current role in the interventional unit in 2017 after receiving her advanced practice degree.

“I always enjoyed the sciences, and I was exposed to interventional cardiology growing up, so my current position was a natural outcome of that.” Stegemann said. 

Working with hospitalized patients and... Read More »