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The study of transcatheter aortic valve implantation to treat high-risk severe aortic stenosis

The study of transcatheter aortic valve implantation to treat high-risk severe aortic stenosis

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR-ONC-16009247
Enrollment
Unknown
Registered
2016-09-22
Start date
2016-10-01
Completion date
Unknown
Last updated
2017-04-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

aortic stenosis

Interventions

TAVI group:TAVI
SAVR group:SAVR

Sponsors

Tianjin Chest Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. New York Heart Association [NYHA] class II function or worse; 2. Severe aortic stenosis was defined as an aortic-valve area of less than 0.8 cm2 (or AVA index of less than 0.5 cm2/m2) plus either a mean valve gradient of at least 40 mm Hg or a peak velocity of at least 4.0 m per second; 3. STS(Society of Thoracic Surgeons)risk model of at least 8%.

Exclusion criteria

Exclusion criteria: 1. a bicuspid valve; 2. severe coronary artery disease requiring revascularization or evidence of acute myocardial infarction within one month(Q-wave myocardial infarction,or non-Q-wave myocardial infarction,with CK-MB of at least twice normal or Tn increased); 3. a left ventricular ejection fraction of less than 20%; 4. severe mitral or aortic regurgitation; 5. an aortic annulus diameter of less than 20 mm or more than 32 mm; 6. a recent cerebral embolism; 7. renal failure(calculated creatinine clearance of less than 20 ml/min); 8. hemorrhagic habitus or coagulation disorders,septicemia; 9. life expectancy of less than 1 year; 10. uncontrolled atrial or ventricular arrhythmia; 11. be allergic to anticoagulant,nickel metal or contrast medium.

Design outcomes

Primary

MeasureTime frame
death;re-admission;stroke;

Secondary

MeasureTime frame
NYHA functional class;acute myocardial infraction;acute renal failure;bleeding;third degree atrioventricular block;

Countries

China

Contacts

Public ContactNan Jiang

Tianjin Chest Hospital

xkyyjn@sina.com+86 13821155802

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026