Valvular Heart Disease Registry Study in Second Affiliated Hospital of ZheJiang University

Valvular heart disease (VHD) is becoming more and more frequent with the aging, which has brought a heavy burden to the world. However, the prevalence and prognosis of valvular heart disease are not so clear, especially in the developing countries such as China etc. Because of the slow and progressive nature of VHD, symptoms might not be too severe to be diagnosed on time. Our retrospective survey (Int J Cardiol. 2016 Nov 25) indicated that severe valvular diseases are very common in China. Hence, we design a prospective, observational cohort study to provide contemporary information on the prevalence, characteristics, risk stratification，cost-effective ,treatments and prognosis of Chinese hospitalised adult patients with valvular heart disease.

Inclusion criteria

Hospitalized patients over 18 years old meet one of the following conditions.

• moderate or above valvular heart disease as defined by echocardiography: 1.1 Aortic stenosis, moderate or above, or valve area ≤1.5cm2, or maximal jet velocity ≥3.0m/sec, or mean pressure gradient ≥20mmHg, 1.2 Aortic regurgitation, moderate or above, or jet width ≥25% of left ventricular outflow tract, or regurgitant volume ≥30ml/beat, or regurgitant fraction ≥30%, 1.3 Mitral stenosis, moderate or above, or valve area ≤2.0cm2, 1.4 Mitral regurgitation, moderate or above, or effective regurgitant orifice ≥0.2cm2, or regurgitant volume ≥30ml/beat, or regurgitant fraction ≥30%, 1.5 Tricuspid stenosis, moderate or above, or valve area ≤1.0cm2, 1.6 Tricuspid regurgitation, moderate or above, or central jet area ≥5.0cm2, 1.7 Pulmonic stenosis, moderate or above, or maximal jet velocity >4m/sec, 1.8 Pulmonic regurgitation, moderate or above,
• Patients who had undergone any operation on a cardiac valve (percutaneous balloon commissurotomy, valve repair, valve replacement, transcatheter aortic valve implantation),
• Diagnosis of endocarditis as assessed by Duke criteria.

Exclusion criteria

• Patients cannot be followed up for any reasons.
• Patients in critical condition may be die in one year.
• Patients have been enrolled in this study.