Sex-Specific Differences in Etiology and Prognosis in Patients With Significant Tricuspid Regurgitation.

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The aim of this study was to assess differences in etiology, comorbidities, echocardiographic parameters and prognosis between men and women with significant TR. Clinical and echocardiographic characteristics of 1569 patients (age 71 (62-78) years) at first diagnosis of significant TR were compared between men and women. Patients with congenital heart disease or previous tricuspid valve surgery were excluded. TR etiologies were defined as primary, left valvular disease related, left ventricular (LV) dysfunction related, pulmonary hypertension related, or isolated. The primary endpoint was all-cause mortality. Sex differences in outcomes were compared in the total population and after propensity score matching. There were 798 (51%) women and 771 (49%) men in the study population. Women were diagnosed with significant TR at an older age compared to men (72 [62-79] years vs. 70 [61-77] years; p=0.003). The TR etiology in women was more often left valvular disease related and isolated whereas men more often had LV dysfunction related TR. In the total population women had better 10-year survival compared to men (49% vs. 39%; p=0.001). After propensity score matching, the influence of sex on survival was neutralized (p=0.228) but the TR etiologies remained significantly associated with all-cause mortality. Patients with left valvular disease or LV dysfunction related TR had lower survival compared to patients with primary TR (p=0.004 and p=0.019, respectively). In conclusion, long-term survival of patients with significant TR was similar between men and women after propensity score matching, while the etiology of TR remained significantly associated with all-cause mortality.

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Authors: Marlieke F Dietz, Edgard A Prihadi, Pieter van der Bijl, Federico Fortuni, Ana Isabel Marques, Nina Ajmone Marsan, Jeroen J Bax, Victoria Delgado