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Tricuspid regurgitation and outcomes in mitral valve transcatheter edge-to-edge repair.
Eur Heart J
January 2025
Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.
Background And Aims: The association between periprocedural change in tricuspid regurgitation (TR) and outcomes in patients undergoing mitral transcatheter edge-to-edge repair (M-TEER) is unclear. This study aimed to examine the prognostic value of TR before and after M-TEER.
Methods: Patients in the OCEAN-Mitral registry were divided into four groups according to baseline and post-procedure echocardiographic assessments: no TR/no TR (no TR), no TR/significant TR (new-onset TR), significant TR/no TR (normalized TR), and significant TR/significant TR (residual TR) (all represents before/after M-TEER).
Residual Mitral Regurgitation Interacts With Transmitral Mean Pressure Gradient to Modify the Association With Mortality Following Transcatheter Edge-to-Edge Repair.
Circ Cardiovasc Interv
January 2025
Department of Cardiac Surgery, University of Michigan, Ann Arbor (G.A.).
Background: The association, if any, between the transmitral mean pressure gradient (TMPG) after mitral transcatheter edge-to-edge repair and 1-year mortality is controversial in patients undergoing mitral transcatheter edge-to-edge repair with the MitraClip system. We sought to estimate the association between intraoperatively measured residual mitral regurgitation (rMR) and TMPG and 1-year mortality among patients undergoing mitral transcatheter edge-to-edge repair to facilitate decisions on additional devices.
Methods: In patients with severe secondary (functional) MR, we analyzed registry data using generalized estimating equations.
The crucial role of 18F-fluorodeoxyglucose positron emission tomography/computed tomography in diagnosing pulmonary valve endocarditis in patients after transcatheter pulmonary valve implantation: a case report.
Eur Heart J Case Rep
January 2025
Department of Cardiology, Azorg, Merestraat 80, 9300 Aalst, Belgium.
Background: Patients after transcatheter pulmonary valve implantation (TPVI) are at increased risk for infective prosthetic valve endocarditis. Diagnosis of infective endocarditis (IE) following TPVI is particularly difficult due to impaired visualization of the transcatheter pulmonary valve (TPV) with echocardiography [Delgado V, Ajmone Marsan N, de Waha S, Bonaros N, Brida M, Burri H, et al. 2023 ESC guidelines for the management of endocarditis.
View Article and Find Full Text PDFIdentifying dehydration-induced shear velocity anomaly in the Earth's core-mantle boundary.
Innovation (Camb)
January 2025
Center for High Pressure Science and Technology Advanced Research, Beijing 100193, China.
The steep temperature gradient near the bottom of the mantle is known to generate a negative correlation between the shear wave velocity ( ) and the depth in most regions of the D″ layer, as detected by seismological observations. However, increasing with depth is observed at the D″ layer beneath Central America, where the Farallon slab sinks, and the origin of this anomaly has not been well constrained. Here, we calculate the thermoelastic constants and obtain the elastic wave velocities of hydrous phase H with various Al contents and cation configurations, which may act as a water carrier to the D″ layer.
View Article and Find Full Text PDFSimulation analysis of radiometer effect and outgassing based on molecular particle source perturbation.
Sci Rep
January 2025
Science and Technology on Vacuum and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou, 730000, China.
The Laser Interferometer Space Antenna (LISA) mission is designed to detect space gravitational wave sources in the millihertz band. A critical factor in the success of this mission is the residual acceleration noise metric of the internal test mass (TM) within the ultra-precise inertial sensors. Existing studies indicate that the coupling effects of residual gas and temperature gradient fluctuations significantly influence this metric, primarily manifesting as the radiometer effect and the outgassing effect.
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