Right ventricular remodeling and dysfunction with subsequent annular dilatation and tethering as a mechanism of isolated tricuspid regurgitation

Circulation Journal : Official Journal of the Japanese Circulation Society
Hye-Sun SeoSung Soon Kim

Abstract

Secondary tricuspid regurgitation (TR) as a result of pulmonary hypertension and/or left-sided heart disease is caused by tricuspid valve (TV) annular dilatation and tethering of the tricuspid leaflet after right ventricular (RV) dilatation. However, the mechanism of isolated TR without significant pulmonary hypertension remains unknown. The present study investigated the RV function and TV deformations in patients with isolated TR to find out the mechanism and etiology of the disease. Twelve patients with isolated, severe TR were included. RV area, volume, ejection fraction (EF), tenting distance and tenting area were measured. These parameters were compared with 12 age-and gender-matched controls and 12 patients with secondary TR. The cause of isolated TR was incomplete coaptation associated with annular dilatation without other problems. Compared with the controls, RV end-diastolic volumes and annular diameters were significantly larger and RVEF was significantly lower in patients with isolated TR. Tenting area and tenting distance were also significantly higher. However, there were no significant differences in these parameters between patients with isolated and secondary TR. Isolated TR was associated with RV remodeling, s...Continue Reading

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Citations

Dec 17, 2009·Circulation Journal : Official Journal of the Japanese Circulation Society·Dong Seop Jeong, Kyung-Hwan Kim
Dec 17, 2009·Circulation Journal : Official Journal of the Japanese Circulation Society·Jeong-Woo LeeJae-Kwan Song
Mar 27, 2010·Circulation Journal : Official Journal of the Japanese Circulation Society·Sung-Ho JungJae Won Lee
Aug 9, 2011·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Woo-In YangJong-Won Ha
Mar 6, 2015·Circulation Journal : Official Journal of the Japanese Circulation Society·Hiroyuki NishiYoshiki Sawa
Jun 28, 2013·World Journal for Pediatric & Congenital Heart Surgery·Julie W ChengConstantine Mavroudis
Feb 21, 2013·Cardiology in Review·Joshua T TaylorSimon Maltais
Mar 7, 2020·Journal of the American College of Cardiology·Catherine DeshaiesUNKNOWN Canadian Congenital Cardiac Collaborative (4C)

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