About this trial
The goal of this observational study is to learn about the genetic insights of arrhythmya-induced cardiomyopathy and its clinical prognosis. The main questions it aims to answer are:
I. Does patients with arrhythmia-induced cardiomyopathy have a greater proportion of genetic mutations compared with other types of cardiomyopathy or general population? II. Have the genetics any prognostic impact in patients with arrhythmia-induced cardiomyopathy?
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Presence of atrial fibrillation or atrial flutter not self-limited.
Performance of a cardiac imaging test with systolic function analysis (echocardiogram, magnetic resonance, CT scan) during the clinical course of the arrhythmia, exhibiting a left ventricular ejection fraction (LVEF) <50%. In order for the test to be representative, the maximum time between the performance of the imaging test and the rhythm control procedure will be 3 months, in the absence of intervening cardiovascular events that may have caused a variation in LVEF. In the event that the patient had a previously known LVEF <50%, the change with respect to this attributable to tachyarrhythmia has to be ≥10%.
Signature of informed consent.
Ability to understand and accept participation in the study.
Disqualifiers
Refusal of informed consent.
Legal or juridical incapacity.
Age <18 years.
Life expectancy less than 1 year.
Trial population
Patient with clinical suspected arrhythmia-induced cardiomyopathy
Trial design
Cohort
Prospective
Treatments tested in this trial
Not listed
Trial groups
Trial outcomes
Primary outcomes
Prevalence of pathogenic or likely pathogenic variants in genetic test
Presence of pathogenic/likely pathogenic genetic variant in genetic test
Secondary outcomes
Heart Failure Admission
Incidence of new hospitalización or urgent visit due to heart failure requiring intravenous diuretics
Arrhythmia recurrence
Incidence of any atrial tachyarrhytmia (Atrial fibrillation, atrial flutter or atrial tachycardia) conditioning an atrial rate \>150 beats per minute and with a duration of \>5 minutes.
New unplanned rhythm control procedure
Incidence of unplanned electrical cardioversion or catheter ablation of an atrial tachyarrhythmia (Atrial fibrillation, atrial flutter or atrial tachycardia)
Atrial reverse remodelling
Incidence of atrial reverse remodelling (ARR). ARR will be considered with a decrease in \>1 degree of atrial dilatation (0=non dilated; 1= mild; 2=moderate; 3=severe) or a decrease \>15% in the left atrial indexed volume
Other outcomes
Cardiovascular Hospitalization
Incidence of unplanned hospital admission due to a cardiovascular aethiology, including acute coronary syndrome, rhythm disorder, heart failure, valvular heart disease, cardiogenic syncope, ischaemic stroke or transient ischaemic attack, acute aortic syndrome, pulmonary or systemic embolism or unexplained sudden cardiac death.
Mortality
Death of any cause. Cardiovascular death will be also asesed
Sponsors and contacts
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