Mitral Valve Repair Mortality Rates Declined Since 2017

Researchers found that even as patient health complexity rose, outcomes improved for those undergoing mitral valve procedures.

Updated on Oct. 1, 2026 in Heart Disease

Isometric editorial illustration of a surgical catheter on a medical tray, representing advancements in cardiac valve repair procedures. — Mortality rates for Medicare beneficiaries undergoing mitral valve repair declined from 2017 to 2021, despite an increase in patient health complexity. AI Illustration. Upload story photo >

Live Poll

Are healthcare outcomes for older adults in the U.S. generally improving over time?

Between 2017 and 2021, mortality rates for Medicare beneficiaries undergoing mitral valve repair decreased across all measured timeframes, including at 30 days and one year. This trend occurred despite an increase in the average patient's comorbidity burden.

Why it matters

The findings suggest that procedural advancements or improved patient management may be driving better outcomes in older adults with heart disease. This trend is notable because it persisted even as the patient population presented with more complex health profiles.

A retrospective study of 81,215 Medicare beneficiaries between 2017 and 2021 showed decreased adjusted mortality at 30 days, one year, and two years. This occurred alongside a 7.8% increase in the average Elixhauser Comorbidity Index, indicating sicker patients receiving treatment.

The details

Researchers used adjusted Cox models to analyze procedure volumes and outcomes, noting a shift toward M-TEER procedures and away from traditional surgery. M-TEER use grew from 15.0 to 27.6 per 100,000, while surgical repair dropped from 29.1 to 20.7 per 100,000. These procedures are designed to correct mitral regurgitation, where the heart valve fails to close properly, by either repairing the tissue surgically or using a catheter-based device to improve valve function.

The study analyzed data for Medicare beneficiaries from 2017 through 2021.

Health Landscape

This analysis reflects the broader transition in cardiology toward less invasive options like M-TEER for aging populations. It updates current understanding of standard-of-care effectiveness by demonstrating improved survival rates in real-world clinical practice.

If you or a loved one are facing heart valve issues, these findings highlight the importance of discussing both surgical and catheter-based repair options with a cardiologist. Ask your doctor how your personal comorbidity profile may influence the choice between traditional surgery and M-TEER.

The takeaway

The data confirms that outcomes for heart valve repair are trending in a positive direction, even for patients with multiple underlying health conditions. Patients should maintain regular screenings for heart valve function and discuss current treatment innovations with their medical provider.