What is the clinical evidence from this study?

Study design: Cohort. Population: Paravalvular leak (n=28). Intervention: Transcatheter PVL closure. Primary outcome: Technical success.

What question did this study set out to answer?

This study evaluates the safety, efficacy, and techniques of transcatheter closure for paravalvular leaks in high-risk patients.

June 10, 2026Catheterization and Cardiovascular Interventions

Transcatheter Closure of Paravalvular Leaks: Efficacy, Techniques, and Outcomes From a Single‐Center Prospective Study

Q: What are the key findings of this study?

Transcatheter paravalvular leak closure achieved a 96.4% technical success rate and 92.9% clinical success rate in high-risk patients, with significant improvement in NYHA functional class (p<0.001).

Q: What does this research mean for the field?

Transcatheter paravalvular leak closure achieves high technical (96.4%) and clinical (92.9%) success rates with significant improvement in NYHA functional class in high-risk patients. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

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Key result

Transcatheter PVL closure achieves ~96% technical success in high-risk patients and improves NYHA functional class.

n=28

Why the study?

Redo surgery for paravalvular leak poses significant risks in high-risk patients, making it necessary to evaluate the safety, efficacy, and technical strategies of transcatheter closure.

Does transcatheter PVL closure improve clinical success and NYHA functional class in high-risk patients with significant aortic or mitral PVLs?

Key Points

This study evaluates the safety, efficacy, and techniques of transcatheter closure for paravalvular leaks in high-risk patients.
Prospective cohort study involving 28 high-risk patients with significant aortic or mitral paravalvular leaks.
Transcatheter closure procedures guided by multimodal imaging were performed, assessing success rates and outcomes at 6 months.
Advanced techniques included reverse loop and arteriovenous rail techniques for complex cases.
27 out of 28 procedures were technically successful (96.4%).
Clinical success achieved in 92.9% of patients, with significant improvement in NYHA functional class (p < 0.001).
No significant change in left ventricular ejection fraction, with one patient requiring redo surgery and one dying from sepsis.

Study Design

Type

Cohort (n=28)

Multicenter

Structured PICO

Does transcatheter PVL closure improve clinical success and NYHA functional class in high-risk patients with significant aortic or mitral PVLs?

Population

28 high-risk patients with significant aortic or mitral paravalvular leaks undergoing transcatheter closure, followed for 6 months.

Exposure

Transcatheter paravalvular leak (PVL) closure guided by multimodal imaging, including advanced techniques like reverse loop and arteriovenous (AV) rail

Outcome

Technical, procedural, and clinical success rates, along with 6-month outcomes in NYHA functional class and echocardiographic parameters

Transcatheter closure of paravalvular leaks is a highly successful and safe alternative to redo surgery, significantly improving NYHA functional class in high-risk patients.

Limitations

Single-center design
Lack of long-term follow-up
Need for long-term follow-up

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Supports transcatheter paravalvular leak closure as feasible in high-risk patients; leaves open need for randomized trials versus redo surgery.

Cite This Study

Khalilipur et al. (2026) conducted a cohort in Paravalvular leak (n=28). Transcatheter PVL closure was evaluated on Technical success. Transcatheter paravalvular leak closure achieved a 96.4% technical success rate and 92.9% clinical success rate in high-risk patients, with significant improvement in NYHA functional class (p<0.001).

synapsesocial.com/papers/6a28ffc76f82f25be989c9d2 https://doi.org/10.1002/ccd.70682

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Implication

Supports transcatheter paravalvular leak closure as feasible in high-risk patients; leaves open need for randomized trials versus redo surgery.

Transcatheter Closure of Paravalvular Leaks: Efficacy, Techniques, and Outcomes From a Single‐Center Prospective Study

Key Points

Study Design

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Transcatheter Closure of Paravalvular Leaks: Efficacy, Techniques, and Outcomes From a Single‐Center Prospective Study

Key Points

Study Design

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Also Consider

Also Consider