Registration and Cohort Study of Valvular Heart Disease in Adults in China (China-VHD)
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
Know the risks and potential benefits of clinical studies and talk to your health care provider before participating.
Read our disclaimer for details.
This is a observational、multicenter, prospective cohort study for adults with significant VHD. The purposes of this study were to evaluate the etiology、clinical characteristics、treatment modalities, and outcomes of patients with VHD；also to set up registration system of adult VHD in China, to build a database of Chinese adult VHD, to establish a web-based international standard data acquisition system for VHD and a multicenter clinical research platform. The results of the study will provide a basis for the future national health policy for prevention and treatment of adult VHD.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Layout table for eligibility information
Ages Eligible for Study:
18 Years and older (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
patients over 60 years old with significant VHD
patients over 60 years old meet one of the following conditions.
moderate or above valvular heart disease as defined by echocardiography: （1）aortic stenosis, moderate or above, or valve area ≤1.5cm2, or maximal jet velocity ≥3.0m/sec, or mean pressure gradient ≥20mmHg, （2）aortic regurgitation, moderate or above, or jet width ≥25% of left ventricular outflow tract, or regurgitant volume ≥30ml/beat, or regurgitant fraction ≥30%, （3）mitral stenosis, moderate or above, or valve area ≤1.5cm2, （4）mitral regurgitation, moderate or above, or effective regurgitant orifice ≥0.2cm2, or regurgitant volume ≥30ml/beat, or regurgitant fraction ≥30%, （5）tricuspid stenosis, moderate or above, or valve area ≤1.0cm2, （6）tricuspid regurgitation, moderate or above, or central jet area ≥5.0cm2, （7）pulmonic stenosis, moderate or above, or maximal jet velocity >4m/sec, （8）pulmonic regurgitation, moderate or above,
or patients who had undergone any operation on a cardiac valve (percutaneous balloon commissurotomy, valve repair, valve replacement, transcatheter aortic valve implantation),
or diagnosis of endocarditis as assessed by Duke criteria.
Patients cannot be followed up for any reasons. Patients have been enrolled in this study.