Transcatheter edge-to-edge repair

Transcatheter edge-to-edge repair has been studied in 10 papers since 2024: 9 observational studies in people, 1 review; 5 in the past year. The newest paper, Mar 19, 2026: “Transcatheter vs Surgical Tricuspid Valve Repair: An Analysis of Medicare Beneficiaries”.

Exposure

10 papers study it6 findingsUpdated

See all 10

“Conversely, in secondary MR, it significantly increased in those with successful MR reduction”
Handgrip strength as a marker of frailty in patients with transcatheter edge-to-edge repair: Insights from the OCEAN-mitral registryInternational journal of cardiology2024doi:10.1016/j.ijcard.2024.132743

None of its findings points the other way.

  • 3 independent labs in 2 countries
  • Funders: Boston Scientific and 7 more
  • 3 of 6 findings with company ties
  • Humans9

What did studies of Transcatheter edge-to-edge repair find?

4

Studies of Transcatheter edge-to-edge repair measured 4 outcomes; the most studied are Kansas City Cardiomyopathy Questionnaire Overall Summary score (1 study), left ventricular end-diastolic volume (1) and mortality (1).

Kansas City Cardiomyopathy Questionnaire Overall Summary score

upin humans1

1 study
  1. Transcatheter edge-to-edge repair is linked with better Kansas City Cardiomyopathy Questionnaire Overall Summary score in humans (primary mitral regurgitation) (improved significantly).

    “Functional status and Kansas City Cardiomyopathy Questionnaire - Overall Score improved significantly across age groups, without differences according to age.”

    Humansprimary mitral regurgitation1 year

    Clinical, Functional, and Quality-of-Life Outcomes After Contemporary Transcatheter Edge-to-Edge Repair for Primary Mitral Regurgitation in the Very Elderly

    Journal of the American Heart Association

More on Kansas City Cardiomyopathy Questionnaire Overall Summary score

Left ventricular end-diastolic volume

downin humans1

1 study
  1. Transcatheter edge-to-edge repair is linked with lower left ventricular end-diastolic volume in humans (primary mitral regurgitation) (-12.0±28.8 mL, P=0.003).

    “LV end-diastolic volumes improved to similar extent (-12.0±28.8 mL, P=0.003 and -14.1±31.5 mL, P<0.0001, P=0.34 across groups).”

    Humansprimary mitral regurgitation1 year

    Clinical, Functional, and Quality-of-Life Outcomes After Contemporary Transcatheter Edge-to-Edge Repair for Primary Mitral Regurgitation in the Very Elderly

    Journal of the American Heart Association

More on Left ventricular end-diastolic volume

Mortality

downin humans1

1 study
  1. Transcatheter edge-to-edge repair is linked with lower mortality in humans (43.2% versus 69.5%).

    “The 1-year mortality rate in the MCS-assisted M-TEER group was lower than the estimated mortality rate in the virtual control group (43.2% versus 69.5%).”

    Humansin critically ill patients with significant mitral regurgitation and unstable hemodynamics requiring MCSn = 105

    Safety and Prognostic Implications of Mechanical Circulatory Support-Assisted Transcatheter Edge-to-Edge Repair: The OCEAN-Mitral Registry

    Journal of the American Heart Association

Handgrip strength

upin humans1

1 study
  1. Transcatheter edge-to-edge repair is linked with better handgrip strength in secondary MR with successful MR reduction (MR ≤2+).

    “Conversely, in secondary MR, it significantly increased in those with successful MR reduction”

    Humansin secondary MR with successful MR reduction (MR ≤2+)1 year

    Handgrip strength as a marker of frailty in patients with transcatheter edge-to-edge repair: Insights from the OCEAN-mitral registry

    International journal of cardiology

More on Handgrip strength

What is Transcatheter edge-to-edge repair linked with?

2

Studies link Transcatheter edge-to-edge repair with 2 measures, most often mortality (1 study) and composite of all-cause mortality and heart failure hospitalization (1).

Mortality

downin humans1HR 0.58

1 study
  1. Transcatheter edge-to-edge repair is linked with a lower risk of mortality in humans (moderate or severe AFMR) (HR 0.58, 95% CI 0.35-0.99).

    “secondary endpoints (HR 0.58, 95% CI 0.35-0.99, P = .044).”

    Humansmoderate or severe AFMRn = 1,081

    Transcatheter edge-to-edge repair vs medical therapy in atrial functional mitral regurgitation: a propensity score-based comparison from the OCEAN-Mitral and REVEAL-AFMR registries

    European heart journal

Composite of all-cause mortality and heart failure hospitalization

downin humans1HR 0.65

1 study
  1. Transcatheter edge-to-edge repair is linked with a lower risk of composite of all-cause mortality and heart failure hospitalization in humans (moderate or severe AFMR) (HR 0.65, 95% CI 0.43-0.99).

    “TEER was associated with a lower incidence of the primary (hazard ratio [HR] 0.65, 95% confidence interval [CI] 0.43-0.99, P = .044)”

    Humansmoderate or severe AFMRn = 1,081

    Transcatheter edge-to-edge repair vs medical therapy in atrial functional mitral regurgitation: a propensity score-based comparison from the OCEAN-Mitral and REVEAL-AFMR registries

    European heart journal

Latest

Nov 2025: 1Dec 2025: 1Jan 2026: 0Feb 2026: 0Mar 2026: 3Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 05 papers in 12 months