The diagnosis of depressed left ventricular ejection fraction (dLVEF) (EF\<50%) depends on golden standard ultrasound cardiography (UCG). A wearable synchronized phonocardiography (PCG) and electrocardiogram (ECG) device can assist in the diagnosis of dLVEF, which can both expedite access to life-saving therapies and reduce the need for costly testing.
Eligibility
Sex
ALL
Min age
18 Years
Max age
100 Years
Healthy volunteers
No
Inclusion Criteria:
* Attendance at RuiJin hospital for UCG
* Signed dated informed consent
* Commit to follow the research procedures and cooperate in the implementation of the whole process research
* UCG has been completed
* Age ≥ 18
* At least 8 consecutive cycles of sinus rhythm can be recorded
Exclusion Criteria:
* Patients with pacemakers
* Complete left bundle branch block or block or QRS wave widening\>120ms
* Left chest skin damaged or allergic to patch
* Refusal to participate
Primary outcome measure(s)
Determination of Heart Failure Disease — one time assessment at baseline (approx. 5 minutes) Heart Failure Disease was determined by EMAT （millisecond, ms）calculate from synchronized PCG and ECG signals using an artificial intelligence (AI) guided model.
Trial sites (3)
Facility
City
Region
Status
Ruijin Hospital, Shanghai Jiaotong School of Medicine
Shanghai
China
Recruiting
Shanghai Chest Hospital, Shanghai Jiao Tong University School Of Medicine
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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