TENDER is a multicenter, single-device, retrospective and prospective, observational study to assess safety and efficacy of the Tendyne Mitral Valve System in a real-world population.
Mitral regurgitation (MR) is a common disease and is associated with high morbidity and mortality if left untreated. Due to age and comorbidities, patients are often ineligible for surgical repair or replacement. Over the last years, transcatheter systems have been introduced as an alternative therapeutic approach. The Tendyne Mitral Valve System (Abbott Vascular, Roseville, Minnesota) is a transcatheter transapical, self-expanding valve prosthesis for mitral valve replacement. A recent study has proven safety and feasibilty of the system, leading to commercial approvement (CE mark). However, data on real world experience with the system are not available. TENDER is a multicenter, single-device, retrospective and prospective, observational study. Objectives of the study are 1) to assess early outcomes, including safety and efficacy, in patients treated with the Tendyne Mitral Valve System for severe MR at 30 days, 2) to assess clinical outcomes in patients treated with the Tendyne Mitral Valve System for severe MR at 1 year and 3 year follow-up, and 3) to identify echocardiographic and CT-based anatomic predictors associated with outcomes.
Study Type
OBSERVATIONAL
Enrollment
400
Tendyne Mitral Valve System for mitral valve disease in a commercial setting
Rate of procedural success
Device success (structural and functional); absence of death, stroke, life-threatening bleeding, major vascular or cardiac structural complications, acute kidney injury, myocardial infarction, heart failure and valve-related dysfunction requiring repeat procedure
Time frame: 30 days
Rate of peri-procedural myocardial infarction
Myocardial infarction during the index procedure
Time frame: 1 day
Rate of conversion to open-heart surgery
Conversion to open-heart surgery during the index procedure
Time frame: 1 day
Rate of cardiac tamponade
Cardiac Tamponade during the index procedure
Time frame: 1 day
Rate of procedural mortality
Death during the index procedure
Time frame: 1 day
Rate of technical success (cumulative endpoint according to MVARC)
Absence of procedural mortality, successful access, delivery and retrieval of the delivery system, successful deployment and positioning, freedom from emergency surgery) Device success (according to MVARC): absence of procedural mortality or stroke, proper placement and positioning, freedom from unplaned procedure related to the device or access, continued safety and performance of the device (no structural or functional failure, no technical complications, reduction of MR ≤ 2+ and mitral valve gradient \< 5 mmHg)
Time frame: 1 day
Rate of device success (cumulative endpoint according to MVARC)
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Universitaetsklinikum Linz
Linz, Austria
Universitaetsklinikum Wien
Vienna, Austria
RECRUITINGUZ Leuven
Leuven, Belgium
RECRUITINGCHU de Bordeaux
Bordeaux, France
NOT_YET_RECRUITINGCHU de Lille
Lille, France
RECRUITINGCHU Rennes
Rennes, France
NOT_YET_RECRUITINGClinique Pasteur
Toulouse, France
RECRUITINGHerz- und Diabeteszentrum NRW
Bad Oeynhausen, Germany
RECRUITINGDeutsches Herzzentrum Berlin
Berlin, Germany
RECRUITINGUniversitaetsklinikum Bonn
Bonn, Germany
RECRUITING...and 20 more locations
Absence of procedural mortality or stroke, proper placement and positioning, freedom from unplaned procedure related to the device or access, continued safety and performance of the device (no structural or functional failure, no technical complications, reduction of MR ≤ 2+ and mitral valve gradient \< 5 mmHg)
Time frame: 30 days, 1 year and 3 years
New York Heart Association (NYHA) functional class
class I - IV
Time frame: 30 days, 1 year and 3 years
6-minute walk distance (6MWD)
in m
Time frame: 30 days, 1 year and 3 years
BNP/NT-proBNP level
in pg/ml
Time frame: 30 days, 1 year and 3 years
Mitral regurgitation severity grade
grade 0/1+/2+/3+/4+
Time frame: 30 days, 1 year and 3 years
Left and right ventricular dimensions
left/right ventricular end-diastolic/-systolic diameter (in mm)
Time frame: 30 days, 1 year and 3 years
Left ventricular function
LVEF in percent
Time frame: 30 days, 1 year and 3 years
Right ventricular function
TAPSE in mm
Time frame: 30 days, 1 year and 3 years
Pulmonary artery pressure
in mmHg
Time frame: 30 days, 1 year and 3 years
Tricuspid regurgitation severity grade
grade 1-5
Time frame: 30 days, 1 year and 3 years
Transprosthetic gradient
in mmHg
Time frame: 30 days, 1 year and 3 years