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  • Title: Characteristics and prognosis of patients with significant tricuspid regurgitation.
    Author: Bohbot Y, Chadha G, Delabre J, Landemaine T, Beyls C, Tribouilloy C.
    Journal: Arch Cardiovasc Dis; 2019 Oct; 112(10):604-614. PubMed ID: 31558358.
    Abstract:
    BACKGROUND: Severe tricuspid regurgitation (TR) usually remains asymptomatic for a long period, and the diagnosis is often delayed until an advanced stage of right heart failure (RHF). Only a minority of patients are referred for surgery. AIM: To describe the characteristics and prognosis of patients with significant TR, according to aetiology. METHOD: Two-hundred and eight consecutive patients with moderate-to-severe (grade III) or severe (grade IV) TR were included from echocardiography reports between 2013 and 2017. Median follow-up was 18 (6-38) months. RESULTS: Patients (mean age 75 years; 46.6% men) were divided into four groups according to TR aetiology: group 1, primary TR (14.9%); group 2, TR secondary to left heart disease with a history of left heart valve surgery (24.5%); group 3, TR secondary to left heart or pulmonary disease with no history of left valvular surgery (26.5%); and group 4, idiopathic TR (34.1%). During follow-up, 61 patients (29.3%) experienced at least one episode of RHF decompensation requiring hospitalization. Only 11 patients (5.3%) underwent tricuspid valve surgery during follow-up. The 4-year survival was much lower than the expected survival of age- and sex-matched individuals in the general population (56±4% vs. 74%). After adjustment for outcome predictors, patients with idiopathic TR had a higher risk of mortality (adjusted hazard ratio 1.83, 95% confidence interval 1.05-3.21; P=0.034) compared with other groups. CONCLUSIONS: Moderate-to-severe or severe TR is associated with a high risk of hospitalization for RHF and death at 4 years, and a low rate of surgery. Idiopathic TR is associated with worse outcome than other aetiologies.
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