Τίτλος:
Rationale, objectives, and design of the EUTrigTreat clinical study: A prospective observational study for arrhythmia risk stratification and assessment of interrelationships among repolarization markers and genotype
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Aims The EUTrigTreat clinical study has been designed as a prospective multicentre observational study and aims to (i) risk stratify patients with an implantable cardioverter defibrillator (ICD) for mortality and shock risk using multiple novel and established risk markers, (ii) explore a link between repolarization biomarkers and genetics of ion (Ca 2, Na, K) metabolism, (iii) compare the results of invasive and non-invasive electrophysiological (EP) testing, (iv) assess changes of non-invasive risk stratification tests over time, and (v) associate arrythmogenomic risk through 19 candidate genes. Methods and resultsPatients with clinical ICD indication are eligible for the trial. Upon inclusion, patients will undergo non-invasive risk stratification, including beat-to-beat variability of repolarization (BVR), T-wave alternans, T-wave morphology variables, ambient arrhythmias from Holter, heart rate variability, and heart rate turbulence. Non-invasive or invasive programmed electrical stimulation will assess inducibility of ventricular arrhythmias, with the latter including recordings of monophasic action potentials and assessment of restitution properties. Established candidate genes are screened for variants. The primary endpoint is all-cause mortality, while one of the secondary endpoints is ICD shock risk. A mean follow-up of 3.3 years is anticipated. Non-invasive testing will be repeated annually during follow-up. It has been calculated that 700 patients are required to identify risk predictors of the primary endpoint, with a possible increase to 1000 patients based on interim risk analysis. ConclusionThe EUTrigTreat clinical study aims to overcome current shortcomings in sudden cardiac death risk stratification and to answer several related research questions. The initial patient recruitment is expected to be completed in July 2012, and follow-up is expected to end in September 2014. © The Author 2011.
Συγγραφείς:
Seegers, J.
Vos, M.A.
Flevari, P.
Willems, R.
Sohns, C.
Vollmann, D.
Lüthje, L.
Kremastinos, D.T.
Flor, V.
Meine, M.
Tuinenburg, A.
Myles, R.C.
Simon, D.
Brockmöller, J.
Friede, T.
Hasenfuß, G.
Lehnart, S.E.
Zabel, M.
Λέξεις-κλειδιά:
biological marker; calcium ion; potassium ion; sodium ion, action potential; article; clinical research; defibrillator; electrocardiography; follow up; genetic analysis; genomics; genotype; heart arrhythmia; heart electrophysiology; heart muscle cell; heart rate; heart rate variability; heart repolarization; heart ventricle arrhythmia; Holter monitoring; human; metabolism; methodology; mortality; observational study; pathophysiology; priority journal; prognosis; risk assessment; risk stratification; stratified sample; T wave, Arrhythmias, Cardiac; Calcium; Cause of Death; Clinical Trials as Topic; Defibrillators, Implantable; Electrophysiologic Techniques, Cardiac; Female; Genotype; Heart Rate; Humans; Male; Multicenter Studies as Topic; Potassium; Research Design; Risk; Sodium
DOI:
10.1093/europace/eur352
