"This book is incredibly complete and easy-to-understand for anybody. I certainly recommend it for patients who want to know more about atrial fibrillation than what they will learn from doctors...."

Pierre Jaïs, M.D. Professor of Cardiology, Haut-Lévêque Hospital, Bordeaux, France

"Dear Steve, I saw a patient this morning with your book [in hand] and highlights throughout. She loves it and finds it very useful to help her in dealing with atrial fibrillation."

Dr. Wilber Su Cavanaugh Heart Center, Phoenix, AZ

"Your book [Beat Your A-Fib] is the quintessential most important guide not only for the individual experiencing atrial fibrillation and his family, but also for primary physicians, and cardiologists."

Jane-Alexandra Krehbiel, nurse, blogger and author "Rational Preparedness: A Primer to Preparedness"


"Steve Ryan's summaries of the Boston A-Fib Symposium are terrific. Steve has the ability to synthesize and communicate accurately in clear and simple terms the essence of complex subjects. This is an exceptional skill and a great service to patients with atrial fibrillation."

Dr. Jeremy Ruskin of Mass. General Hospital and Harvard Medical School

"I love your [A-fib.com] website, Patti and Steve! An excellent resource for anybody seeking credible science on atrial fibrillation plus compelling real-life stories from others living with A-Fib. Congratulations…"

Carolyn Thomas, blogger and heart attack survivor; MyHeartSisters.org

"Steve, your website was so helpful. Thank you! After two ablations I am now A-fib free. You are a great help to a lot of people, keep up the good work."

Terry Traver, former A-Fib patient

"If you want to do some research on AF go to A-Fib.com by Steve Ryan, this site was a big help to me, and helped me be free of AF."

Roy Salmon Patient, A-Fib Free; pacemakerclub.com, Sept. 2013

 FAQs A-Fib Ablations: A Runner’s Heart 

Catheter ablation illustration at A-Fib.com

Catheter ablation

“I’m a life-long runner. I recently got intermittent A-Fib. Does ablation (whether RF or Cryo) affect the heart’s blood pumping output potential because of the destruction of cardiac tissue? And if so, how much? One doc said it does.”

As a fellow runner, I understand your concern on how an ablation might affect your ability to resume your athletic activities.

Seek Your Cure: Keep in mind, with Atrial Fibrillation you lose 15% to 30% of your heart’s normal pumping volume along with lower oxygen levels. Your body and brain aren’t getting the blood and nourishment they need. An catheter ablation is an important way to improve or restore your heart’s pumping volume.

Catheter Ablation Lesions around PV openings at A-Fib.com

Lesions around PV openings

Ablate as Little Tissue as Possible: A common ablation technique for paroxysmal A-Fib (using RF or Cryo), ablates only around the opening of each Pulmonary Vein (PV) and isn’t likely to affect the heart’s output.

On the other hand, more extensive lesion patterns affecting more tissue may affect the heart’s output. For example, during a PV Wide Area Antrum Ablation, instead of just ablating around each of the PV openings, large, oval lesions are made in the left atrium encircling both the upper and lower vein openings.

PVAI - Ccommon lesion set at A-Fib.com

More extensive lesion pattern

(This is intuitive on my part; we don’t have clinical studies confirming any effect or difference between the two approaches in terms of heart output and atrium function.)

For a runner, the more extensive ablation of the left atrium may affect heart output. Less active patients may not notice the difference, but a runner like you may.

My Best Advice to Runners with Atrial Fibrillation

Seek out the Best EPs: Select the most experienced Electrophysiologists (EPs) you can afford (and travel if you need to). Discuss catheter ablation and your concerns about decreased heart output after ablation. A good EP will make as few lesions during your ablation as possible.

Paroxysmal A-Fib Easiest to Ablate: At the moment you have “paroxysmal A-Fib of recent onset” and it’s usually the easiest to fix. It’s likely you will not need an extensive ablation. (Though one never knows till the actual ablation; Read what Travis Van Slooten wrote about how his “easy case” turned into a complex, extensive ablation.)

Ablate ASAP: Get your ablation as reasonably soon as possible, before your A-Fib has a chance to get worse and requires a more extensive ablation.

Keep your medical records in a binder or folder. at A-Fib.com

Keep A-Fib records in a binder or folder.

Monitor Progress of your A-Fib: A-Fib is a progressive disease. You should track if your heart’s measurements are getting better or worse, and by how much. Ask your doctor for the measurements of heart dimensions and its functions including the diameter and volume of the left atrium, your Ejection Fraction (EF) and any other test results.

Store all your test results and measurements in your A-Fib three-ring binder or file folder.

What Patients’ Need to Know: A progressively enlarging heart and a falling EF percentage (below 35%) means your A-Fib is worsening. To preserve your heart’s best functions, seek an ablation before your A-Fib worsens.

As a runner, even if your heart is somewhat enlarged and your EF has decreased, a successful catheter ablation may not only end your A-Fib and improve your Ejection Fraction but over time may even reduce your enlarged left atrium.

Thanks to Joe O’Flaherty for this question.

If you find any errors on this page, email us. Last updated: Thursday, February 9, 2017

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