Beyond the Valve

Q: What is the clinical evidence from this study?

Study design: Editorial. Population: Severe tricuspid regurgitation and right heart failure. Intervention: Heterotopic caval valve implantation (CAVI).

Q: What does this research mean for the field?

Heterotopic caval valve implantation relieves systemic venous congestion and unloads the right ventricle in patients with severe tricuspid regurgitation who are ineligible for transcatheter repair or replacement. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Brunilda Alushi; Alexander Lauten

doi:10.1016/j.jaccas.2026.109758

September 1, 2026JACC Case ReportsOpen Access

Beyond the Valve

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Key result

Caval valve implantation provides venous decongestion and RV unloading in inoperable severe tricuspid regurgitation.

Figures

Graphical abstract published by JACC Case Reports — Graphical abstract · Published by JACC Case Reports · CC BY-NC-ND

Why the study?

A subset of patients with severe tricuspid regurgitation remain without suitable options due to anatomical constraints or prior interventions, necessitating alternative heterotopic caval valve implantation strategies targeting right heart failure and systemic venous congestion.

Key Points

To review the evolving role, clinical indications, and device architectures of heterotopic caval valve implantation for patients with severe tricuspid regurgitation and refractory right heart failure who lack conventional repair or replacement options.
Evaluated physiological mechanisms and clinical results from the first-in-human implantation of the TRICENTO G2 continuous bicaval stent-graft in an 81-year-old patient with prior mitral repair and tricuspid transcatheter edge-to-edge repair.
Synthesized technical and clinical trial evidence across 4 dedicated heterotopic platforms organized by bicaval (TricValve, TRICENTO G2) and crosscaval (Trillium, UNICA) designs.
In the TRICENTO G2 first-in-human case, intervention resulted in prompt elimination of the v-wave on catheterization, resolution of hepatic vein flow reversal, and recovery of tricuspid annular plane systolic excursion, right ventricular fractional area change, and strain within 5 days.
The TricValve system demonstrated a 94% procedural success rate with 79.4% of patients achieving NYHA functional class I or II at 6 months in the TRICUS EURO study, alongside 96.1% intraprocedural success in real-world registry data.
Crosscaval approaches showed feasibility, with Trillium achieving 100% procedural success in 20 patients and UNICA reducing central venous pressure from 29 to 12 mm Hg immediately with NYHA class II status sustained at 60 days.

PICO

P

Population

An editorial discussing a case report of an 81-year-old man and reviewing the clinical application of heterotopic caval valve implantation for patients with refractory right heart failure who lack options for direct valve repair.

I

Intervention / Comparator

Heterotopic caval valve implantation (CAVI)

Limitations

Survival data from adequately powered trials remain absent.
Single IVC coverage provides only partial hemodynamic relief since superior vena cava backflow remains unaddressed.

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Implication

May offer relief in refractory TR; extends case-level data but leaves open randomized confirmation of durability.

Abstract

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Cite This Study

Alushi et al. (2026) conducted an editorial in Severe tricuspid regurgitation and right heart failure. Heterotopic caval valve implantation (CAVI) was evaluated. Heterotopic caval valve implantation provides systemic venous decongestion and right ventricular unloading for patients with severe tricuspid regurgitation lacking options for direct structural valvular correction.

synapsesocial.com/papers/6ace6e0db52af824ab02bc56 https://doi.org/10.1016/j.jaccas.2026.109758

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Beyond the Valve

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Key Points

PICO

Limitations

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Beyond the Valve

Figures

Key Points

PICO

Limitations

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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