Fixing heart valves early, before symptoms, was linked to longer life
☕ Includes a question for the family ↓
Heart valvesPart of a story we are following · 1 article · See every update
If you have been told you have a leaky mitral valve, here is good news. Fixing it early, before you feel any symptoms, was linked to a longer life. This is true for people whose leak is severe.
This matters because heart valves can leak for years without making you feel sick. Doctors have long debated whether to operate right away or wait for symptoms. A new study points toward not waiting.
How the study worked
Researchers followed 802 people in South Korea who had a severe leak in the mitral valve but no symptoms. The mitral valve sits between the left chambers of your heart. When it does not close tightly, blood leaks backward. The people were treated at 3 large hospitals between 2000 and 2022, and they were followed for a median of 7.4 years. Of them, 344 had surgery within 6 months of diagnosis, and 458 chose watchful waiting. The team used a method that mimics a randomized trial with hospital records, and the results were published Oct. 1, 2026, in JAMA Network Open. Because it used records and not a trial that assigns people by chance, it shows a link, and the people came from expert centers in one country.
What they found
People who had early surgery lived longer. There were 27 deaths in the early surgery group and 103 in the watchful waiting group.
At 5 years, early surgery was linked to about 2 extra months of life on average. The exact figure was 66 days. The advantage held up to 15 years after diagnosis.
In plain terms, early surgery was linked to a lower risk of dying during the study.
The pattern was similar in two groups of interest. One was people whose heart was still pumping well, with no signs of strain. The other was people whose leak came from degenerative valve disease, where the valve wears out over time.
Why does waiting matter?
A leaking valve makes your heart work harder. Over time, that extra effort can strain the heart, even when you feel fine. Fixing the valve sooner may protect the heart before that strain builds up. The authors say the findings support considering earlier surgery in current practice.
What you can do today
If you have ever been told you have a heart murmur or a leaky valve, write down two questions for your next checkup: how severe is it, and how often should I get an echocardiogram, the ultrasound picture of the heart? If it is severe, ask whether early repair is an option at a hospital with an experienced valve team.
Talk about it at home
Question for the table
Some people have a heart valve that leaks, like a door that does not shut all the way, but they feel fine. In this study, people who had the door fixed early lived longer than people who waited until they felt sick. Scientists could not flip a coin to decide who got surgery, so they used past records instead. How could you tell if the people who got surgery were just healthier to begin with?
Keep exploring
Copies this article and its questions so you can paste them into ChatGPT, Claude, Gemini or the AI you use, and keep the conversation going.
Questions and answers
- What is mitral regurgitation?
- It is a leak in the mitral valve, which lets blood flow backward in the heart instead of forward.
- Who was in the study?
- 802 people in South Korea with a severe mitral valve leak and no symptoms.
- How much longer did people live after early surgery?
- At 5 years, early surgery was linked to about 2 extra months of life on average (66 days).
- Is this the same as a randomized trial?
- No. It used hospital records and a method that mimics a trial, so it shows a link and not proof.