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Heart, Lung and Circulation

Severe Functional Tricuspid Valve Regurgitation: Predictors of Mortality After Initial Diagnosis

      Background

      Severe functional tricuspid regurgitation (fTR) is associated with adverse clinical outcomes and remains under-treated. There is recent interest in this disease due to emerging tricuspid valve therapies. However, the timing and selection of patients who may benefit from treatment is uncertain. Risk factors associated with mortality after diagnosis of severe fTR may help guide treatment.

      Aim

      We studied patients with severe fTR to assess predictors of mortality.

      Methods

      We retrospectively identified consecutive patients who had severe fTR diagnosed on transthoracic echocardiography in a single academic tertiary hospital. These were categorised into atrial fibrillation (AF)– and non-AF–related groups. Patient characteristics and echocardiographic parameters were collected. We then analysed the collected parameters on their impact on occurrence of mortality and also on the time to mortality.

      Results

      A total of 635 patients with severe fTR were studied (41.6 % male, mean age of 68.6±15.4 yrs). There were 130 (20.5%) in the AF-related group and 505 (79.5%) in the non-AF related-group. Median follow-up duration was 774 days, during which 154 (24.3%) deaths occurred within the first year. Older age on diagnosis, reduced left ventricular ejection fraction (LVEF) (<50%), high pulmonary systolic pressure (PASP) (>50 mmHg) and a prior history of heart failure admissions were associated with occurrence of mortality. Older age on diagnosis, reduced LVEF, and high PASP were also found to be associated with time to mortality.

      Conclusions

      For patients diagnosed with severe fTR, advanced age on diagnosis, prior heart failure admission, LVEF <50%, and PASP >50 mmHg are associated with mortality. These factors could form the basis of future studies that determine the timing and decision to intervene in patients with severe fTR.

      Key Words

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