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Background: Transcatheter tricuspid valve intervention (TTVI) has been increasingly adopted in recent years for the treatment of patients with tricuspid regurgitation (TR). However, no dedicated risk stratification has been established for patients undergoing TTVI., Objectives: The aim of the present study was to propose a dedicated risk score for patients affected by severe TR undergoing TTVI., Methods: The score was derived from the TRIVALVE (International Multisite Transcatheter Tricuspid Valve Therapies Registry; NCT03416166) registry, according to data availability. A stepwise model approach was used on predictor variables to develop a scoring system for predicting 12-month mortality or rehospitalization using multivariable logistic regression. Internal discrimination, calibration, and validation were assessed using receiver-operating characteristic curve analysis and bootstrapping with 1,000 resamples., Results: A total of 483 patients were included in the study, with an overall 12-month mortality or rehospitalization rate of 19% (n = 94). The final risk score, ranging from 0 to 4.5, included the following 5 parameters (adjusted for age and gender): 1) atrial fibrillation at baseline; 2) glomerular filtration rate <30 mL/min; 3) elevated gamma-glutamyl transferase/bilirubin levels; 4) signs of right heart failure; and 5) left ventricular ejection fraction <50%. The bias-corrected area under the receiver-operating characteristic curve was 68% (95% CI: 62%-75%). A cutoff value of 2.5 demonstrated sensitivity of 65.4% and specificity of 60.5% for the outcome., Conclusions: The present study proposes a dedicated risk score for patients undergoing TTVI, providing an additional and simple tool for heart teams to select the best therapy for patients affected by severe TR., Competing Interests: Funding Support and Author Disclosures Dr Russo has received a fellowship training grant from the European Association of Percutaneous Cardiovascular Interventions, sponsored by Edwards Lifesciences. Dr Adamo has received personal fees from Abbott Vascular, Medtronic, and Novartis. Dr Hahn has received speaker fees from Abbott Structural, Baylis Medical, Edwards Lifesciences, and Philips Healthcare; has institutional consulting contracts for which she receives no direct compensation with Abbott Structural, Boston Scientific, Edwards Lifesciences, Medtronic, and Novartis; has stock options with NaviGate; and is chief scientific officer for the Echocardiography Core Laboratory at the Cardiovascular Research Foundation for multiple industry-sponsored trials, for which she receives no direct industry compensation. Dr Andreas is a proctor, consultant, and speaker for Edwards Lifesciences, Abbott, Medtronic, Boston Scientific, and Zoll; and has received institutional research grants from Edwards Lifesciences, Abbott, Medtronic, and LSI Solutions. Dr Denti has received speaker honoraria from Abbott and Edwards Lifesciences. Dr Estevez-Loureiro is a consultant for Abbott Vascular, Boston Scientific, and Edwards Lifesciences. Dr Nickenig has received honoraria for lectures or advisory board membership from Abbott, Boston Scientific, Edwards Lifesciences, and Medtronic. Dr Schofer is a consultant for Edwards Lifesciences. Dr Sievert has received study honoraria to the institution, travel expenses, and consulting fees from 4tech Cardio, Abbott, Ablative Solutions, Adona Medical, Akura Medical, Ancora Heart, Append Medical, Axon, Bavaria Medizin Technologie, Bioventrix, Boston Scientific, Cardiac Dimensions, Cardiac Success, Cardimed, Cardionovum, CeloNova Biosciences, Contego, Coramaze, CroíValve, CSL Behring, CVRx, Dinova, Edwards Lifesciences, EndoBar, Endologix, EndoMatic, Esperion Therapeutics, Hangzhou Nuomao Medtech, Holistick Medical, InterShunt Technologies, Intervene, K2, Laminar, Life Tech Care, Magenta, Maquet Getinge Group, Metavention, Mitralix, Mokita, Neurotronic, NXT Biomedical, Occlutech, Recor, Renal Guard, Shifamed, Terumo, Trisol, Vascular Dynamics, Vectorious Medtech, Venus, Venock, Vivasure Medical, Vvital Biomed, and WhiteSwell. Dr Tang has served as a physician proctor for Medtronic; has served as a consultant for Medtronic, Abbott Structural Heart, and NeoChord; has served on the transcatheter aortic valve replacement advisory board for Abbott Structural Heart; and has served on the physician advisory board for JenaValve. Dr von Bardeleben has served for trials and as a principal investigator for Abbott, Edwards Lifesciences, and Medtronic. Dr Windecker has received research, travel, or educational grants to the institution from Abbott, Abiomed, Amgen, AstraZeneca, Bayer, Biotronik, Boehringer Ingelheim, Boston Scientific, Bristol Myers Squibb, Cardinal Health, Cardiovalve, CorFlow Therapeutics, CSL Behring, Daiichi-Sankyo, Edwards Lifesciences, Guerbet, Infraredx, Janssen-Cilag, Johnson & Johnson, Medicure, Medtronic, Merck Sharp & Dohme, Miracor Medical, Novartis, Novo Nordisk, Organon, OrPha Suisse, Pfizer, Polares, Regeneron, Sanofi, Servier, Sinomed, Terumo, Vifor, and V-Wave; has served as an advisory board member and/or a member of the steering or executive groups of trials funded by Abbott, Abiomed, Amgen, AstraZeneca, Bayer, Boston Scientific, Biotronik, Bristol Myers Squibb, Edwards Lifesciences, Janssen, MedAlliance, Medtronic, Novartis, Polares, Recardio, Sinomed, Terumo, V-Wave, and Xeltis, with payments to the institution but no personal payments; and is a member of the steering or executive committee groups of several investigator-initiated trials that receive funding from industry, without impact on his personal remuneration. Dr Enriquez-Sarano is a consultant for Edwards Lifesciences, ChemImage, Cryolife, and HighLife. Dr Maisano is a consultant for Abbott Vascular, Medtronic, Edwards Lifesciences, Perifect, Xeltis, Transseptal Solutions, Magenta, and Cardiovalve; has received grant support from Abbott Vascular, Medtronic, Edwards Lifesciences, Biotronik, Boston Scientific, NVT, and Terumo; has received royalties from Edwards Lifesciences and 4Tech; and is a cofounder and shareholder of Transseptal Solutions, 4Tech, Cardiovalve, Magenta, Perifect, Coregard and SwissVortex. Dr Taramasso has received consultancy fees from Abbott Vascular, Edwards Lifesciences, 4Tech, Boston Scientific, CoreMedic, Mitraltech, and SwissVortex (outside the submitted work). All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (Copyright © 2024 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)

Aims: T-TEER is an effective therapy for the treatment of tricuspid regurgitation (TR). However, the effects of leaflets clipping on tricuspid valve annulus (TA) have not been investigated in detail. The aim of this study is to investigate the effects of tricuspid transcatheter edge-to-edge repair (T-TEER) on TA diameter., Methods and Results: The TriValve registry (Transcatheter Tricuspid Valve Therapies, NCT03416166) collected 556 patients from 22 European and North American centres undergoing transcatheter tricuspid valve interventions from 2016 to 2022. Patients undergoing T-TEER with available pre- and post-procedural data on TA diameter measured in the apical 4-chamber view on transthoracic echocardiography were selected for this study. Primary end-point was the reduction of TA diameter after T-TEER. A total of 186 patients were included in the study. In 115 patients (62%) TA diameter was reduced by at least 1 mm as compared to baseline. A significant reduction of TA dimension was observed following T-TEER (mean 2.3 mm [from pre-procedural diameter 46.7 mm to post-procedural diameter 44.4 mm], p < 0.001). In particular, the greatest reduction was observed in those with T-TEER in antero-septal commissure (mean 2.7 mm [from 47.1 mm to 44.4 mm], p < 0.001) as compared to those combining both antero-septal and postero-septal commissures (mean 1.4, from 46.0 mm to 44.6 mm, P = 0.06). A significant reduction of TA dimension was recorded in patients with 1 or 2 clips implanted but not in those patients with ≥3 clips implanted., Conclusions: In almost two third of patients T-TEER reduces TA diameter in addition to leaflet approximation., Condensed Abstract: The effects of tricuspid transcatheter edge-to-edge repair (T-TEER) on tricuspid valve annulus (TA) have not been studied in details. This study investigates TA diameter as measured in apical 4-chamber view on transthoracic echocardiography before and after T-TEER. A total of 186 patients from the TriValve registry were included in the study. The study results show that 62% of patients have a TA reduction after T-TEER, especially in those receiving 1 or 2 clips in the antero-septal commissure. These suggest that T-TEER reduces tricuspid regurgitation not only by approximation of leaflets, but also by TA diameter reduction., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Background: Data on the prognostic role of the TRI-SCORE in patients undergoing transcatheter tricuspid valve intervention (TTVI) are limited., Objectives: The aim of this study was to evaluate the performance of the TRI-SCORE in predicting outcomes of patients undergoing TTVI., Methods: TriValve (Transcatheter Tricuspid Valve Therapies) is a large multicenter multinational registry including patients undergoing TTVI. The TRI-SCORE is a risk model recently proposed to predict in-hospital mortality after tricuspid valve surgery. The TriValve population was stratified based on the TRI-SCORE tertiles. The outcomes of interest were all-cause death and all-cause death or heart failure hospitalization. Procedural complications and changes in NYHA functional class were also reported., Results: Among the 634 patients included, 223 patients (35.2%) had a TRI-SCORE between 0 and 5, 221 (34.8%) had 6 or 7, and 190 (30%) had ≥8 points. Postprocedural blood transfusion, acute kidney injury, new atrial fibrillation, and in-hospital mortality were more frequent in the highest TRI-SCORE tertile. Postprocedure length of stay increased with a TRI-SCORE increase. A TRI-SCORE ≥8 was associated with an increased risk of 30-day all-cause mortality and all-cause mortality and the composite endpoint assessed at a median follow-up of 186 days (OR: 3.00; 95% CI: 1.38-6.55; HR: 2.17; 95% CI: 1.78-4.13; HR: 2.08, 95% CI: 1.57-2.74, respectively) even after adjustment for procedural success and EuroSCORE II or Society of Thoracic Surgeons Predicted Risk of Mortality. The NYHA functional class improved across all TRI-SCORE values., Conclusions: In the TriValve registry, the TRI-SCORE has a suboptimal performance in predicting clinical outcomes. However, a TRISCORE ≥8 is associated with an increased risk of clinical events and a lack of prognostic benefit after successful TTVI., Competing Interests: Funding Support and Author Disclosures Dr Adamo has received speaker honoraria from Abbott. Dr Russo has received a fellowship training grant from the EAPCI sponsored by Edwards Lifesciences. Dr Badano is on the Speaker Bureau of GE Healthcare, Philips Medical Systems, and EsaOte SpA; is currently serving on the Clinical Event Committee of Edwards Lifesciences; and is the director of the echocardiography core laboratory at the Istituto Auxologico Italiano, IRCCS for multiple industry-sponsored trials for which he receives no direct industry compensation. Dr Andreas is a proctor/consultant/speaker for Edwards Lifesciences, Abbott, Medtronic, Boston Scientific, Zoll; and has received institutional research grants from Edwards Lifesciences, Abbott, Medtronic, and LSI. Dr Denti has received speaker honoraria from Abbott and Edwards Lifesciences. Dr Estevez-Loureiro is a consultant for Abbott Vascular, Boston Scientific, and Edwards Lifesciences. Dr Gavazzoni is a proctor for Abbott. Dr Hahn has received speaker fees from Abbott Structural, Baylis Medical, Edwards Lifesciences, and Philips Healthcare; has institutional consulting contracts for which she receives no direct compensation with Abbott Structural, Boston Scientific, Edwards Lifesciences, Medtronic, and Novartis; has stock options with Navigate; and is Chief Scientific Officer for the Echocardiography Core Laboratory at the Cardiovascular Research Foundation for multiple industry-sponsored trials for which she receives no direct industry compensation. Dr Nickenig has received honoraria for lectures or advisory boards from Abbott, Boston Scientific, Edwards Lifesciences, and Medtronic. Dr Schofer is a consultant for Edwards Lifesciences. Dr Sievert has received study honoraria to institution, travel expenses, and consulting fees from 4tech Cardio, Abbott, Ablative Solutions, Adona Medical, Akura Medical, Ancora Heart, Append Medical, Axon, Bavaria Medizin Technologie GmbH, Bioventrix, Boston Scientific, Cardiac Dimensions, Cardiac Success, Cardimed, Cardionovum, Celonova, Contego, Coramaze, Croivalve, CSL Behring LLC, CVRx, Dinova, Edwards Lifesciences, Endobar, Endologix, Endomatic, Esperion Therapeutics, Inc, Hangzhou Nuomao Medtech, Holistick Medical, Intershunt, Intervene, K2, Laminar, Lifetech, Magenta, Maquet Getinge Group, Metavention, Mitralix, Mokita, Neurotronic, NXT Biomedical, Occlutech, Recor, Renal Guard, Shifamed, Terumo, Trisol, Vascular Dynamics, Vectorious Medtech, Venus, Venock, Vivasure Medical, Vvital Biomed, and Whiteswell. Dr Tang has served as a physician proctor for Medtronic; has served as a consultant for Medtronic, Abbott Structural Heart, and NeoChord; has served on the TAVR Advisory Board for Abbott Structural Heart; and has served on the Physician Advisory Board for JenaValve. Dr von Bardeleben has served for trials and principal investigator for Abbott, Edwards Lifesciences, and Medtronic. Dr Windecker has received research, travel, or educational grants to the institution from Abbott, Abiomed, Amgen, AstraZeneca, Bayer, Biotronik, Boehringer Ingelheim, Boston Scientific, Bristol Myers Squibb, Cardinal Health, CardioValve, Corflow Therapeutics, CSL Behring, Daiichi Sankyo, Edwards Lifesciences, Guerbet, InfraRedx, Janssen-Cilag, Johnson & Johnson, Medicure, Medtronic, Merck Sharp & Dohm, Miracor Medical, Novartis, Novo Nordisk, Organon, OrPha Suisse, Pfizer, Polares, Regeneron, Sanofi-Aventis, Servier, Sinomed, Terumo, Vifor, and V-Wave; has served as an Advisory Board member and/or member of the Steering/Executive Group of trials funded by Abbott, Abiomed, Amgen, AstraZeneca, Bayer, Boston Scientific, Biotronik, Bristol Myers Squibb, Edwards Lifesciences, Janssen, MedAlliance, Medtronic, Novartis, Polares, Recardio, Sinomed, Terumo, V-Wave, and Xeltis with payments to the institution but no personal payments; and is a member of the Steering/Executive Committee Group of several investigator-initiated trials that receive funding by industry without impact on his personal remuneration. Dr Maisano is a consultant for Abbott Vascular, Medtronic, Edwards Lifesciences, Perifect, Xeltis, Transseptal Solutions, Magenta, and Cardiovalve; has received grant support from Abbott Vascular, Medtronic, Edwards Lifesciences, Biotronik, Boston Scientific, NVT, and Terumo; has received royalties from Edwards Lifesciences and 4Tech; and is cofounder/shareholder of Transseptal Solutions, 4Tech, Cardiovalve, Magenta, Perifect, Coregard, and SwissVortex. Dr Metra has received consulting fees from Abbott Vascular, Actelion, Amgen, AstraZeneca, Bayer, Edwards Therapeutics, Livanova, Servier, Vifor Pharma, and WindTree Therapeutics. Dr Taramasso has received consultancy fees from Abbott Vascular, Edwards Lifesciences, 4Tech, Boston Scientific, CoreMedic, Mitraltech, and SwissVortex outside the submitted work. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (Copyright © 2024 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)

Aim: Functional or secondary tricuspid regurgitation (STR) is the most common phenotype of tricuspid regurgitation (TR) with atrial STR (ASTR) and ventricular STR (VSTR) being recently identified as two distinct entities. Data on tricuspid transcatheter edge-to-edge repair (T-TEER) in patients with STR according to phenotype (i.e. ASTR vs. VSTR) are lacking. The aim of this study was to assess characteristics and outcomes of patients with ASTR versus VSTR undergoing T-TEER., Methods and Results: Patients with STR undergoing T-TEER were selected from the Transcatheter Tricuspid Valve Therapies (TriValve) registry. ASTR was defined by (i) left ventricular ejection fraction ≥50%, (ii) atrial fibrillation, and (iii) systolic pulmonary artery pressure <50 mmHg. Patients not matching these criteria were classified as VSTR. Patients with primary TR and cardiac implantable electronic device were excluded. Key endpoints included procedural success and survival at follow-up. A total of 298 patients were enrolled in the study: 65 (22%) with ASTR and 233 (78%) with VSTR. Procedural success was similar in the two groups (80% vs. 83% for ASTR vs. VSTR, p = 0.56) and TEER was effective in reducing TR in both groups (from 97% of patients with baseline TR ≥3+ to 23% in ASTR and to 15% in VSTR, all p = 0.001). At 12-month follow-up, survival was significantly higher in the ASTR versus VSTR cohort (91% vs. 72%, log-rank p = 0.02), with VSTR being an independent predictor of mortality at multivariable analysis (hazard ratio 4.75)., Conclusions: In a real-world, multicentre registry, T-TEER was effective in reducing TR grade in both ASTR and VSTR. At 12-month follow-up, ASTR showed better survival than VSTR., (© 2023 European Society of Cardiology.)

Competing Interests: Conflicts of interest D.P. received speaker’s fees from Daiichi-Sankyo, outside the submitted work. R.V. received consulting or lecturing fees from Abbott Vascular, Amgen, and Terumo, outside the submitted work.

Tricuspid regurgitation (TR) is a highly prevalent valvular heart disease and is associated with an increased risk of cardiovascular events and death at long-term follow-up. Functional TR accounts for over 90% of TR and is mainly due to annular or right ventricular dilatation. Most often, TR is observed in patients with left-sided valvular heart disease (with or without previous surgical correction) and pulmonary hypertension. Isolated TR is less frequent, though burdened by high surgical mortality. This, together with an incomplete understanding of the disease, has brought to a significant undertreatment in spite of the growing evidence of the impact of severe TR on mortality. Moreover, uncertainties about the appropriate timing for intervention and the predictors of procedural success have contributed to limit TR treatment. Transcatheter tricuspid valve replacement or repair interventions represent novel and less invasive alternatives to surgery and have shown early promising results. The purpose of this review is to provide a complete and updated overview of TR pathology with a special focus on current percutaneous treatment options, future challenges and directions., (© 2021 European Society of Cardiology.)