Myocardial Stiffness Evaluation in Patients With Heart Failure With Preserved Ejection Fraction

ConditionHeart Failure With Preserved Ejection Fraction

Trial statusRecruiting

Trial phaseNot listed

Trial typeObservational

Biological sexAll

Age18-80

SponsorHaiyan Wang

About this trial

The goal of this observational study is to evaluating myocardial stiffness in patients with heart failure with preserved ejection fraction (HFpEF) by intrinsic wave velocity propagation (IVP). The main questions it aims to answer are:

* Whether myocardial stiffness assessed by IVP in patients with HFpEF Increased. * Whether IVP is related to the cardiac structure and function in patients with HFpEF. * What are the risk factors that may be associated with heart failure rehospitalization in patients with HFpEF? * Whether increased myocardial stiffness is a risk factor for heart failure rehospitalization.

Participants will undergo transthoracic echocardiography to obtain conventional ultrasound parameters, and software post-processing analysis to obtained two-dimensional strain parameters and IVP, as well as general clinical data and laboratory test results. Clinical followed up was performed through electronic medical records or telephone interviews until patient rehospitalization for heart failure or discharge for one year.

Eligibility criteria

Qualifiers

Present with signs and symptoms of heart failure;

LVEF≥50%;

There is at least one additional criterion: Increased BNP (BNP≥35pg/ml, NT-pro BNP>125pg/ml) and resting echocardiography measured E/e' ≥ 15; Stress echocardiography determined E/e' ≥ 15; Cardiac catheterization at rest, PCWP ≥ 15 mmHg or LVEDP ≥ 16 mmHg; The PCWP at peak exercise was ≥ 25 mmHg.

Disqualifiers

Acute coronary syndrome, acute heart failure or coronary revascularization in three months;

HFimpEF, cardiomyopathy, severe valvular heart disease, arrhythmia;

Thyroid dysfunction, pulmonary hypertension, past or current pulmonary embolism, severe chronic obstructive pulmonary disease, malignancy/renal failure (less than 30) ml/min);

Poor echocardiogram image quality.

Trial design

Treatments tested in this trial

Echocardiography examination

Treatment groups

438 Participants

are divided into 2 treatment groups

Sponsors and collaborators

Haiyan Wang

Lead sponsor

Qianfoshan Hospital

Sponsor institution

Source ClinicalTrials.gov