Prognostic Value of Echocardiographic Parameters Based on Machine Learning Approach

Study Overview
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Brief Summary
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Transthyretin cardiac amyloidosis is an increasingly recognized cause of heart failure with preserved ejection fraction. Its diagnosis is currently based on a non-invasive method including biology and imaging. Still currently incurable, the evolution of this pathology is burdened by numerous comorbidities, including iterative hospitalizations for heart failure leading to death. The Machine Learning approach has already shown its efficiency in terms of diagnosis but its prognostic approach has not yet been studied.

Official Title
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Valeur Pronostique Dans Une Population d'Amylose Cardiaque Des paramètres échocardiographiques basée Sur Une Approche d'Apprentissage Automatique

Conditions
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Transthyretin Cardiac Amyloidosis

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with suspicion of transthyretin cardiac amyloidosis Age ≥18 years Exclusion Criteria: Lack of data to confirm or overturn the transthyretin amyloidosis diagnostic Echocardiographic data not allowing deep analysis (technical default, bad echogenicity of the patient) Final diagnostic of AL or AA amyloidosis

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Rate of death from all causes | composite endpoint: rate of death from all causes and hospitalisation for acute heart failure following inclusion (with outcome 2 | Minimum 1-year follow-up and until last news available | 
| Rate of hospitalisation for acute heart failure | composite endpoint: rate of death from all causes and hospitalisation for acute heart failure following inclusion (with outcome 1) | Minimum 1-year follow-up and until last news available | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Rate of death from all causes |  | Minimum 1-year follow-up and until last news available | 
| Rate of hospitalisation for acute heart failure (including repeated hospitalisation) |  | Minimum 1-year follow-up and until last news available | 
| Implantation of pacemaker/defibrillator during study |  | Minimum 1-year follow-up and until last news available | 
| Rate of death from all causes and hospitalisation for acute heart failure | composite endpoint: Rate of death from all causes and hospitalisation for acute heart failure, rate of death from all causes and rate of hospitalisation for acute heart failure following inclusion (with outcome 7 and ) | Minimum 1-year follow-up and until last news available | 
| Rate of death from all causes | composite endpoint: Rate of death from all causes and hospitalisation for acute heart failure, rate of death from all causes and rate of hospitalisation for acute heart failure following inclusion (with outcome 6 and 8) | Minimum 1-year follow-up and until last news available | 
| Rate of hospitalisation for acute heart failure | composite endpoint: Rate of death from all causes and hospitalisation for acute heart failure, rate of death from all causes and rate of hospitalisation for acute heart failure following inclusion (with outcome 6 and 7) | Minimum 1-year follow-up and until last news available |