Heart Failure With Preserved Ejection Fraction: Evaluation and Recognition by CMR

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-01-31

Study Completion Date

2032-01-31

Brief Summary

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Heart failure with preserved ejection fraction (HFpEF) is a common and growing condition with a poor prognosis but the pathophysiology and management are still being investigated. The PREFER-CMR project aims to evaluate and validate the application of novel 4D cardiac magnetic resonance flow dynamic methods to measure left ventricular pressures and validate these measurements with direct pressure measurement by coronary angiography. This is a prospective observational study of patients with HFpEF undergoing clinical evaluation with coronary angiography who will also undergo contemporaneous cardiac MRI. The primary outcome will be the level of agreement between the two methods using angiography as the reference method.

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Detailed Description

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Heart failure with preserved ejection fraction (HFpEF) is prevalent, increasing in incidence and has a poor prognosis. Accurate left ventricular (LV) haemodynamic assessment is needed to diagnose and manage patients with HFpEF. The reference method for assessment is an invasive study using catheters to measure intra-ventricular pressure but this is rarely done due to its invasive nature, high procedural costs and lack of expertise, despite the fact that haemodynamic guided therapy is associated with reduced re-hospitalisation and mortality. Non-invasive methods of LV haemodynamic assessment are inaccurate. The Investigators have developed an accurate four-dimensional flow cardiac magnetic resonance (4D flow CMR) protocol which is non-invasive and addresses the issues with existing practices to evaluate HFpEF. This observational-analytical study aims to assess the utility of a non-invasive 4D flow CMR protocol for haemodynamic assessment of HFpEF, to generate clinical data to support future clinical trials, clinical translation and patient benefit. This research study will involve generating a precise haemodynamic model using invasive and non-invasive data of prospectively recruited patients. This model will be also optimised in clinical patients with arrhythmias. Also, observational data will be collected to test the model's prognostic value.

Conditions

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Heart Failure With Preserved Ejection Fraction Heart Diseases

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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HFpEF group

Suspected HFpEF group: 80 patients will be recruited with history of dyspnoea, LV ejection fraction ≥ 50%, raised NTproBNP

Multi Parametric Cardiac Magnetic Resonance

Intervention Type DIAGNOSTIC_TEST

Research based Cardiac MRI evaluation to determine cardiovascular haemodynamics

Control group

20 patients with suspected CAD but with no dyspnoea and normal echocardiogram.

Multi Parametric Cardiac Magnetic Resonance

Intervention Type DIAGNOSTIC_TEST

Research based Cardiac MRI evaluation to determine cardiovascular haemodynamics

Interventions

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Multi Parametric Cardiac Magnetic Resonance

Research based Cardiac MRI evaluation to determine cardiovascular haemodynamics

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

1. Adults: age≥18 years.
2. Typical HF symptoms (NYHA stage\>I) within the last six months.
3. Raised NTproBNP (\>400 pg/ml)
4. EF\>50 % with the absence of structural heart disease on TTE (except left ventricular hypertrophy or left atrial enlargement).

Exclusion Criteria

1. Patients unable/unwilling to provide informed consent.
2. Bodyweight\>120 kg or inability to lie flat/still.
3. Contraindication for invasive workup (allergy to contrast, severe renal insufficiency with estimated glomerular filtration rate (eGRF)\<30 ml/min).
4. Contraindications for a contrast-enhanced CMR study (allergy to contrast, incompatible devices or implants, severe claustrophobia).
5. Previous medical history of EF \<50%
6. Pregnancy

The extended observational arm of the study will have wider eligibility criteria

\- Patients undergoing cardiac MRI for clinical indications irrespective of EF

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No