Clinical Research Directory

Inclusion Criteria: * Age ≥ 18 years old; * Body mass index \< 35 kg/m2; * Diagnosed with heart failure: according to "Chinese Guidelines for Diagnosis and Treatment of Heart Failure 2024", "2021 ESC Guidelines for Diagnosis and Treatment of Acute and Chronic Heart Failure", and "2022 AHA/ACC/HFSA Guidelines for Management of Heart Failure"; * NYHA classification II - IV; * Able to fully understand the purpose and process of the trial and voluntarily sign the informed consent form. Exclusion Criteria: * There are physical disabilities that prevent safe and thorough testing; * There are open wounds on the chest skin or the skin is allergic to the patches; * There is a large amount of pericardial effusion, pericardial tamponade, pleural friction rub, pneumothorax, and a large amount of pleural effusion, which may affect data collection; * The patient has severe comorbidities or unstable condition, which may interfere with data collection during the study period; * Other situations where the investigator believes the subject is not suitable to participate in this trial, such as those that may increase the risk of the trial, affect the subject's compliance with the protocol, or affect the subject's ability to complete the trial due to physical or psychological diseases or conditions.