Mechanisms of Tricuspid Regurgitation
Type | Typical Mechanism | Right Ventricular Size, Systolic Function | Potential Treatment* |
|---|---|---|---|
Primary | |||
Valvular | Abnormal leaflets | Initially normal | Usually replacement |
Secondary | |||
Atrial | Dilated annulus | Initially normal | Tricuspid valve annuloplasty |
Ventricular | Tethered (restricted) leaflets | Dilated and impaired | Edge-to-edge repair (under development) or replacement |
Pacemaker lead associated | Lead interferes with valve function or damages leaflets | Variable | Lead extraction and tricuspid valve replacement |
* Patient selection based upon patient characteristics is critical, and individualization of therapy is necessary. | |||
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