[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100457650":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":25,"centralContacts":30,"locations":35,"responsibleParty":125,"collaborators":24,"id":128,"slug":24,"hasResults":129,"nctId":130,"briefTitle":131,"officialTitle":132,"acronym":133,"eligibilityCriteria":134,"healthyVolunteers":129,"sex":135,"minAge":136,"maxAge":24,"enrollmentInfo":137,"targetDuration":24,"studyType":140,"phases":141,"briefSummary":143,"conditions":144,"keywords":149,"overallStatus":38,"whyStopped":24,"lastUpdateSubmitDate":155,"lastUpdatePostDateStruct":156,"startDateStruct":159,"completionDateStruct":161,"leadSponsor":163,"locationsCount":164},{"fullName":5,"class":6},"Evangelical Hospital Düsseldorf","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Standard approach","EXPERIMENTAL","Patients will receive a standard approach for ablation of atrial tachycardia.",[13],"Procedure: Catheter ablation",{"label":15,"type":10,"description":16,"interventionNames":17},"Minimalized approach","Patients will receive a minimalized approach for ablation of atrial tachycardia.",[13],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"PROCEDURE","Catheter ablation","Catheter-based ablation of arrhythmias using radiofrequency.",[15,9],null,[26],{"name":27,"affiliation":28,"role":29},"Christian Meyer, MD","Evangelic Hospital Düsseldorf","PRINCIPAL_INVESTIGATOR",[31],{"name":27,"role":32,"phone":33,"phoneExt":24,"email":34},"CONTACT","00492119191855","christian.meyer@evk-duesseldorf.de",[36,51,81,92,103,114],{"facility":37,"status":38,"city":39,"state":40,"zip":24,"country":41,"cosmosGeoPoint":42,"geoPoint":47,"contacts":48},"Asklepios St. Georg","RECRUITING","Hamburg","Free and Hanseatic City of Hamburg","Germany",{"type":43,"coordinates":44},"Point",[45,46],9.99302,53.55073,{"lat":46,"lon":45},[49],{"name":50,"role":32,"phone":24,"phoneExt":24,"email":24},"Stephan Willems, MD",{"facility":28,"status":38,"city":52,"state":53,"zip":54,"country":41,"cosmosGeoPoint":55,"geoPoint":59,"contacts":60},"Düsseldorf","North Rhine-Westfalia","40217",{"type":43,"coordinates":56},[57,58],6.77927,51.22319,{"lat":58,"lon":57},[61,62,65,66,69,71,73,75,77,79],{"name":27,"role":32,"phone":33,"phoneExt":24,"email":34},{"name":63,"role":32,"phone":24,"phoneExt":24,"email":64},"Katharina Scherschel, PhD","katharina.scherschel@evk-duesseldorf.de",{"name":27,"role":29,"phone":24,"phoneExt":24,"email":24},{"name":67,"role":68,"phone":24,"phoneExt":24,"email":24},"Ernan Zhu, MD","SUB_INVESTIGATOR",{"name":70,"role":68,"phone":24,"phoneExt":24,"email":24},"Fares A Alken, MD",{"name":72,"role":68,"phone":24,"phoneExt":24,"email":24},"Bahram Wafaisade, MD",{"name":74,"role":68,"phone":24,"phoneExt":24,"email":24},"Kristin Risse, MD",{"name":76,"role":68,"phone":24,"phoneExt":24,"email":24},"Ioana Reismann, MD",{"name":78,"role":68,"phone":24,"phoneExt":24,"email":24},"Lars Kutsch, MD",{"name":80,"role":68,"phone":24,"phoneExt":24,"email":24},"Ann-Kathrin Kahle, MD",{"facility":82,"status":38,"city":83,"state":24,"zip":24,"country":41,"cosmosGeoPoint":84,"geoPoint":88,"contacts":89},"Vivantes Klinikum Am Urban Berlin","Berlin",{"type":43,"coordinates":85},[86,87],13.41053,52.52437,{"lat":87,"lon":86},[90],{"name":91,"role":32,"phone":24,"phoneExt":24,"email":24},"Niels C Ewertsen, MD",{"facility":93,"status":38,"city":94,"state":24,"zip":24,"country":41,"cosmosGeoPoint":95,"geoPoint":99,"contacts":100},"Evangelic Hospital Hagen-Haspe","Hagen",{"type":43,"coordinates":96},[97,98],7.47168,51.36081,{"lat":98,"lon":97},[101],{"name":102,"role":32,"phone":24,"phoneExt":24,"email":24},"Harilaos Bogossian, MD",{"facility":104,"status":38,"city":105,"state":24,"zip":24,"country":41,"cosmosGeoPoint":106,"geoPoint":110,"contacts":111},"Städtisches Klinikum Karlsruhe","Karlsruhe",{"type":43,"coordinates":107},[108,109],8.40444,49.00937,{"lat":109,"lon":108},[112],{"name":113,"role":32,"phone":24,"phoneExt":24,"email":24},"Armin Luik, MD",{"facility":115,"status":38,"city":116,"state":24,"zip":24,"country":41,"cosmosGeoPoint":117,"geoPoint":121,"contacts":122},"Universitätsklinikum Schleswig Holstein","Kiel",{"type":43,"coordinates":118},[119,120],10.13489,54.32133,{"lat":120,"lon":119},[123],{"name":124,"role":32,"phone":24,"phoneExt":24,"email":24},"Evgeny Lyan, MD",{"type":29,"investigatorFullName":126,"investigatorTitle":127,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"Christian Meyer","Prof. Dr. Christian Meyer","100457650",false,"NCT05239364","Ablation of Consecutive Atrial Tachycardia","Ablation of CONseCutive atriaL Tachycardia gUided by Ultra-high-DEnsity Mapping","CONCLUDE","Inclusion Criteria:\n\n* Consecutive AT subsequent to prior AF ablation procedure or cardiac surgery\n* Surface ECG-documentation of AT as primary clinical arrhythmia\n* ECG indicating stable, map-able AT (stable activation sequence, and CL stability) with cycle length ≥ 200ms\n\nExclusion Criteria:\n\n* \\\u003C 18 years\n* No previous atrial fibrillation ablation procedure or cardiac surgery\n* Pregnant women or women of childbearing potential without a negative pregnancy test within 48 hours prior to treatment\n* History of hemorrhagic diathesis or other coagulopathies\n* Contraindications for oral anticoagulation\n* Hyper- or hypothyroidism\n* Has any condition that would make participation not be in the best interest of the subject","ALL","18 Years",{"count":138,"type":139},100,"ESTIMATED","INTERVENTIONAL",[142],"NA","Ablation of consecutive atrial tachycardia (AT) after ablation of atrial fibrillation (AF) or cardiac surgery can be challenging due to complex substrate and AT mechanisms. A substantial portion of patients is known to show various tachycardias and recurrences occur in a noticeable number of cases. With the availability of novel ultra-high-density mapping techniques characterization and understanding of AT mechanisms and underlying substrate can be improved. Aim of this prospective, multi-center, randomized study is to compare a standard AT ablation approach versus minimalized ablation of the clinical AT in regards to arrhythmia free survival.",[145,146,147,148],"Heart Arrhythmia","Heart Diseases","Arrhythmias, Cardiac","Atrial Tachycardia",[150,151,152,153,154],"Atrial fibrillation","Atrial tachycardia","Pulmonary vein isolation","Electroanatomical mapping","High density mapping","2026-04-27",{"date":157,"type":158},"2026-04-30","ACTUAL",{"date":160,"type":158},"2020-12-22",{"date":162,"type":139},"2027-06",{"name":5,"class":6},6]