{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,25]],"date-time":"2026-10-25T00:09:09Z","timestamp":1792886949612,"version":"4.5.0"},"reference-count":29,"publisher":"BMJ","issue":"1","license":[{"start":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T00:00:00Z","timestamp":1777420800000},"content-version":"unspecified","delay-in-days":118,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Open Heart"],"accepted":{"date-parts":[[2026,4,1]]},"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Secondary tricuspid regurgitation (TR) often develops or persists following left-sided valve surgery. However, its impact on outcomes and the optimal timing of intervention is unclear. This study examined the association between isolated postoperative secondary TR and outcomes in patients with a history of mitral or aortic valve surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This observational single-centre cohort study included patients with left-sided valve surgery and less than moderate preoperative TR who underwent follow-up echocardiography between 2002 and 2024. The presence of isolated postoperative secondary TR was evaluated in relation to clinical outcomes. The primary endpoint was a composite of all-cause death and heart failure hospitalisations (HFH).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The cohort consisted of 2487 patients with a mean age of 68 years and a median follow-up time of 3 years. All-cause mortality and HFH increased with the grade of postoperative TR (p&lt;0.001). Postoperative TR was associated with the composite endpoint independent of cardiovascular risk factors and baseline comorbidities (adjusted HR 1.29; 95%\u2009CI 1.18 to 1.41; p&lt;0.001). The association between postoperative TR and the primary endpoint remained significant after adjustment for right ventricular (RV) remodelling and moderate mitral regurgitation (adjusted HR 1.40; 95%\u2009CI 1.28 to 1.53; p&lt;0.001). An increase in TR by at least two grades from the preoperative assessment was observed in 12.5% of patients and was associated with the composite endpoint (p&lt;0.001). Age, sex, myocardial infarction, coronary artery bypass grafting, atrial fibrillation and RV remodelling were factors associated with TR progression (p&lt;0.01).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In patients following left-sided valve surgery, isolated postoperative secondary TR is independently associated with mortality and HFH independent of RV size, function and baseline comorbidities. An increase in TR severity by at least two grades from the preoperative assessment is associated with adverse outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/openhrt-2026-004063","type":"journal-article","created":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T16:35:22Z","timestamp":1777480522000},"page":"e004063","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Isolated secondary tricuspid regurgitation after left-sided valve surgery: impact on clinical outcomes"],"prefix":"10.1136","volume":"13","author":[{"given":"Mihaela Ioana","family":"Dregoesc","sequence":"first","affiliation":[{"name":"Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evin","family":"Yucel","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Massachusetts General Hospital, 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