跳至主要内容
临床试验/NL-OMON53564
NL-OMON53564招募中不适用

InvEstigation of the safety and perforMance of the NVT ALLEGRA THV System with a new delivery system in Patients with severe calcified aortIc stenosis or failed suRgical aortic bioprosthEsis - EMPIRE Study

VT GmbH0 个研究点目标入组 36 人开始时间: 待定最近更新:
适应症

试验速览

阶段
不适用
状态
招募中
发起方
入组人数
36

研究概览

简要总结

暂无简介。

研究设计

研究类型
Interventional

入排标准

年龄范围
18 至 99(—)

入选标准

  • Inclusion Criteria:
  • Patients will be included if ALL of the following criteria are met:
  • 1. Symptomatic severe calcific stenosis of a native aortic valve with an AVA
  • <=1.0 cm2 (or AVA index <=0.6 cm2/m2), AND mean aortic pressure gradient >= 40mmHg
  • OR maximal transaortic velocity >=4.0m/s OR Doppler velocity index <=0.25 on
  • site-reported echocardiography OR symptomatic patients with degeneration of a
  • surgical bioprosthetic valve (stenosis and/or insufficiency) on sitereported
  • echocardiography
  • 2. Local multi-disciplinary Heart Team and Central Screening Committee (CSC)
  • agree on indication and eligibility for TAVI
  • 3. Age >=18 years
  • 4. Patient has signed the Patient Informed Consent Form
  • 5. Patient is willing and able to comply with requirements of the study,
  • including all follow-up visits

排除标准

  • Exclusion Criteria
  • 1. Mean aortic annulus diameter as measured by preprocedural CT or internal
  • diameter of the bioprosthesis is <16.5 mm or >27 mm
  • 2. Echocardiographic evidence of intracardiac thrombus or vegetation
  • (site-reported)
  • 3. Significant disease of the aorta that would preclude safe advancement of the
  • ALLEGRA THV System
  • 4. Severe ilio-femoral vessel disease that would preclude safe placement of an
  • 18 Fr introducer sheath or make endovascular access impossible
  • 5. Severe tricuspid regurgitation and/or failing right heart (site-reported)
  • 6. Severe left ventricular dysfunction with ejection fraction (EF) <20%
  • (site-reported)
  • 7. Evidence of active endocarditis or other acute infections
  • 8. Renal failure requiring continuous renal replacement therapy
  • 9. Untreated clinically significant coronary artery disease requiring
  • revascularization
  • 10. Any percutaneous interventional procedure (e.g. PCI with stenting) within
  • 14 days prior of the index procedure
  • 11. Acute MI <=30 days prior to the index procedure
  • 12. Symptomatic carotid or vertebral artery disease requiring intervention or
  • carotid/vertebral intervention within the preceding 45 days
  • 13. Cerebrovascular accident (CVA) or transient ischemic attack (TIA) <=6 months
  • or prior CVA with moderate or severe disability (e.g. modified Rankin scale
  • score >2)
  • 14. History of bleeding diathesis or coagulopathy; acute blood dyscrasias as
  • defined: thrombocytopenia (platelets <80,000/µl), acute anemia (hemoglobin <10
  • g/dl), leukopenia (WBC <3000/ µl)
  • 15. Active peptic ulcer or gastrointestinal (GI) bleeding <=3 months
  • 16. Severe (greater than 3+) mitral insufficiency (sitereported)
  • 16a. Pre-existing prosthetic heart valve in any position other than aortic
  • 17. Uncontrolled atrial fibrillation
  • 18. Required emergency surgery for any reason
  • 19. Known hypersensitivity to contrast media, which cannot be adequately
  • pre-medicated or contraindication to anticoagulant or anti-platelet medication
  • or to nitinol alloy or to bovine tissue
  • 20. Life expectancy <=12 months due to other medical illness
  • 21. Currently participating in another investigational drug or device study
  • 22. Pregnancy or intend to become pregnant during study participation
  • Specific exclusions in patients with native aortic valve disease
  • (site-reported):
  • 23. Unicuspid or bicuspid aortic valve
  • 24. Non-calcified aortic stenosis
  • 25. Predominant aortic regurgitation > grade 3
  • 26. Distance between native aortic valve basal plane and the orifice of the
  • lowest coronary artery <8 mm
  • Specific exclusions in patients with degenerated surgical bioprosthetic aortic
  • valves (valve-in-valve) (site-reported):
  • 27. Low position of the coronary ostia, especially in combination with shallow
  • sinuses (high risk of coronary occlusion)
  • 28. Partially detached leaflets that may obstruct a coronary ostium
  • 另有 1 项未显示

研究者

发起方
VT GmbH

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