China National Heart Failure Registry
China National Heart Failure Registry
The purpose of CN-HF is to establish the national registration of hospitalized heart failure
 patients, evaluate and compare the clinical features and prognosis of diastolic and systolic
 heart failure, and find out the status of treatment and implementation of guidelines on heart
 failure in China.
The CN-HF is a national, multi-centered, prospective and observational registry study, led by
 Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital (head unit) with 50 to 100
 secondary and tertiary hospitals involved. The study planed to consecutively enroll 10 000
 heart failure patients fulfilling the inclusion criteria. Each center will register all
 patients with heart failure involved in the discharge or death diagnosis in consecutive 6
 months, and each registered patient will be followed up for at least 3 years. The study
 consists 3 phases: the screening phase, the baseline registry phase, and the follow-up
 registry phase.

 The data collecting and reporting will employ the combination of paper-based case report form
 (CRF) and web-based electronic CRF. The handwriting paper CRF are provided by the head unit
 as raw data. Investigators in each center should input the raw data into the web-based CRF
 using the login name and password provided by the head unit.

 The data management center specified by the head unit is responsible for the establishment
 and maintenance of CRF and the central database, the regular check of data submitted and the
 updating of the database. During the data collection, the data management center will also
 regularly check and report errors in the CRF and feedback to each centers and supervise to
 correct errors.

 At the end of the study, the database will be locked after all data being checked and
 updated. Each participating center will preserve their own copy of paper-based CRF and
 electronic CRF, the head unit will preserve all paper-based CRFs and electronic CRFs.

 Statistical analysis will be performed by independent statisticians in the head unit
 (Shanghai Institute of Cardiovascular Diseases) using the SAS software. The Student t test or
 chi-square test will be used for comparison between two groups. The Cox proportional hazard
 model will be used to investigate the risk factors for adverse cardiovascular events.
Inclusion Criteria:

 -  Patients discharged from the department of cardiology;

 -  Discharge or death diagnosis involves diseases with I50 as the beginning of the
 International Classification of Diseases (ICD)-10 code, including congestive heart
 failure, congestive heart disease, cardiac failure, right side heart failure, right
 side ventricular failure, acute left side heart failure, chronic left side cardiac
 dysfunction, cardiac asthma, left side heart failure, left side heart failure with
 acute pulmonary edema, low cardiac output syndrome, cardiac dysfunction, acute heart
 failure, chronic heart failure, grade Ⅱ cardiac function class, grade Ⅲ cardiac
 function class, grade Ⅱ-Ⅲ cardiac function class, grade Ⅳ cardiac function class,
 heart failure, cardiac-renal failure, circulatory failure, and grade Ⅰcardiac function
 class (I51.903), pregnancy with heart failure (O99.408), pregnancy with cardiac
 dysfunction (O99.429), postpartum cardiac dysfunction (O99.434), post-operative heart
 failure with pulmonary edema (I97.104), and heart failure after cardiac surgery
 (I97.106);

 -  Agree to sign an informed consent form.

 Exclusion Criteria:

 -  Refuse to sign an informed consent form;

 -  Already involved in this study during previous hospitalization.