Chronic heart failure
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.Patients aged 18-85 years were included; 2.LBBB, QRS duration >=130 ms, LVEF<=40% of patients with symptomatic heart failure despite receiving optimized drug therapy recommended by guidelines; 3.Patients were able to understand the study protocol, sign informed consent, and comply with follow-up.
Exclusion criteria
Exclusion criteria: 1.Severe systemic comorbidities or psychiatric disorders; 2.Unstable angina pectoris, acute myocardial infarction, coronary artery bypass or PCI within 3 months; 3.Patient with mechanical tricuspid valve replacement; 4.Life expectancy < 1 year; 5.Participating in another clinical trial within the past 3 months; 6.Pregnancy or intended pregnancy within 1 year.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Six months after surgery; | — |
Secondary
| Measure | Time frame |
|---|---|
| Cardiac mechanical synchronization;Electrical synchronization of the heart;Heart failure readmission rate;Improvement in cardiac function;All-cause mortality; | — |
Countries
China
Contacts
Xi'an Jiaotong University Second Affiliated Hospital