P. Nelson Hsieh MD, PhD
pnelsonhsieh.bsky.social
P. Nelson Hsieh MD, PhD
@pnelsonhsieh.bsky.social
Arrhythmias in Athletes and Cardiovascular Performance.

Massachusetts General Hospital | Harvard Medical School
Fellows: have you considered a career in sports electrophysiology?

authors.elsevier.com/sd/article/S...
ScienceDirect.com | Science, health and medical journals, full text articles and books.
authors.elsevier.com
September 15, 2025 at 11:44 AM
How does endurance exercise change your heart?

A history of the athlete’s heart, hallmark features to recognize it, and differentiating it from disease.

www.ahajournals.org/doi/full/10....
Athlete’s Heart Revisited: Historical, Clinical, and Molecular Perspectives | Circulation Research
The athlete’s heart, formally introduced by Henschen and Darling in 1899 through observations of cardiac enlargement in endurance athletes, has evolved from a clinical curiosity to a recognized physio...
www.ahajournals.org
July 15, 2025 at 3:57 PM
Reposted by P. Nelson Hsieh MD, PhD
New data highlight concerning trends among young Americans and sudden cardiac death. Our goal should be that every cardiac arrest is vigorously met with the tools needed to save a life—for athletes and urban and rural communities alike.

buff.ly/4gImAYW
December 18, 2024 at 11:06 AM
Reposted by P. Nelson Hsieh MD, PhD
New 👇🏾

A triathlete presents to our Sports Cardiology program @MGHHeartHealth with progressive exercise intolerance. Peak VO2 was a strikingly low 19 ml/kg/min.

+Kussmauls sign.

Why fitness quantified is a vital sign.

Read Here: bit.ly/4aDeJtu

#SportsCardiology
January 29, 2025 at 10:26 AM
For anyone wondering about the connection of peak VO2 to mortality:

In individuals aged 70-77 with peak VO2 <26.5 (male) and <22.2 (female) over a year, risk of death 2 to 5-fold higher than a high peak VO2 group

www.sciencedirect.com/science/arti...
Survival of the fittest? Peak oxygen uptake and all-cause mortality among older adults in Norway
To determine the cardiorespiratory fitness (CRF) levels needed to avoid the Grim Reaper (Death) among older adults. We hypothesized that an above aver…
www.sciencedirect.com
December 10, 2024 at 11:32 PM
Congratulations Class of 2025!!!!
December 7, 2024 at 6:05 PM
Reposted by P. Nelson Hsieh MD, PhD
Today is Cardiology Fellowship Match Day! ❤️Join us in celebrating #TheFaceOfCardiology! 🎉

New Cardio Fellows: Share your success and explore ACC’s resources just for fellows like you:
🔗 bit.ly/36Dxs93

#CardioSky #MedSky #Match2024 #MatchDay2024 #ACCFIT
December 4, 2024 at 8:10 PM
Is there a name for the Saturday after Thanksgiving?
November 30, 2024 at 8:04 PM