[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100457650":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":25,"centralContacts":30,"locations":35,"responsibleParty":126,"collaborators":24,"id":129,"slug":130,"hasResults":131,"nctId":132,"briefTitle":133,"officialTitle":134,"acronym":135,"eligibilityCriteria":136,"healthyVolunteers":131,"sex":137,"minAge":138,"maxAge":24,"enrollmentInfo":139,"targetDuration":24,"studyType":142,"phases":143,"briefSummary":145,"conditions":146,"keywords":151,"overallStatus":38,"whyStopped":24,"lastUpdateSubmitDate":157,"lastUpdatePostDateStruct":158,"startDateStruct":161,"completionDateStruct":163,"leadSponsor":165,"locationsCount":166},{"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",[36,52,82,93,104,115],{"facility":37,"status":38,"city":39,"state":40,"zip":24,"country":41,"countryCode":42,"cosmosGeoPoint":43,"geoPoint":48,"contacts":49},"Asklepios St. Georg","RECRUITING","Hamburg","Free and Hanseatic City of Hamburg","Germany","DE",{"type":44,"coordinates":45},"Point",[46,47],9.99302,53.55073,{"lat":47,"lon":46},[50],{"name":51,"role":32,"phone":24,"phoneExt":24,"email":24},"Stephan Willems, MD",{"facility":28,"status":38,"city":53,"state":54,"zip":55,"country":41,"countryCode":42,"cosmosGeoPoint":56,"geoPoint":60,"contacts":61},"Düsseldorf","North Rhine-Westfalia","40217",{"type":44,"coordinates":57},[58,59],6.77927,51.22319,{"lat":59,"lon":58},[62,63,66,67,70,72,74,76,78,80],{"name":27,"role":32,"phone":33,"phoneExt":24,"email":34},{"name":64,"role":32,"phone":24,"phoneExt":24,"email":65},"Katharina Scherschel, PhD","katharina.scherschel@evk-duesseldorf.de",{"name":27,"role":29,"phone":24,"phoneExt":24,"email":24},{"name":68,"role":69,"phone":24,"phoneExt":24,"email":24},"Ernan Zhu, MD","SUB_INVESTIGATOR",{"name":71,"role":69,"phone":24,"phoneExt":24,"email":24},"Fares A Alken, MD",{"name":73,"role":69,"phone":24,"phoneExt":24,"email":24},"Bahram Wafaisade, MD",{"name":75,"role":69,"phone":24,"phoneExt":24,"email":24},"Kristin Risse, MD",{"name":77,"role":69,"phone":24,"phoneExt":24,"email":24},"Ioana Reismann, MD",{"name":79,"role":69,"phone":24,"phoneExt":24,"email":24},"Lars Kutsch, MD",{"name":81,"role":69,"phone":24,"phoneExt":24,"email":24},"Ann-Kathrin Kahle, MD",{"facility":83,"status":38,"city":84,"state":24,"zip":24,"country":41,"countryCode":42,"cosmosGeoPoint":85,"geoPoint":89,"contacts":90},"Vivantes Klinikum Am Urban Berlin","Berlin",{"type":44,"coordinates":86},[87,88],13.41053,52.52437,{"lat":88,"lon":87},[91],{"name":92,"role":32,"phone":24,"phoneExt":24,"email":24},"Niels C Ewertsen, MD",{"facility":94,"status":38,"city":95,"state":24,"zip":24,"country":41,"countryCode":42,"cosmosGeoPoint":96,"geoPoint":100,"contacts":101},"Evangelic Hospital Hagen-Haspe","Hagen",{"type":44,"coordinates":97},[98,99],7.47168,51.36081,{"lat":99,"lon":98},[102],{"name":103,"role":32,"phone":24,"phoneExt":24,"email":24},"Harilaos Bogossian, MD",{"facility":105,"status":38,"city":106,"state":24,"zip":24,"country":41,"countryCode":42,"cosmosGeoPoint":107,"geoPoint":111,"contacts":112},"Städtisches Klinikum Karlsruhe","Karlsruhe",{"type":44,"coordinates":108},[109,110],8.40444,49.00937,{"lat":110,"lon":109},[113],{"name":114,"role":32,"phone":24,"phoneExt":24,"email":24},"Armin Luik, MD",{"facility":116,"status":38,"city":117,"state":24,"zip":24,"country":41,"countryCode":42,"cosmosGeoPoint":118,"geoPoint":122,"contacts":123},"Universitätsklinikum Schleswig Holstein","Kiel",{"type":44,"coordinates":119},[120,121],10.13489,54.32133,{"lat":121,"lon":120},[124],{"name":125,"role":32,"phone":24,"phoneExt":24,"email":24},"Evgeny Lyan, MD",{"type":29,"investigatorFullName":127,"investigatorTitle":128,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"Christian Meyer","Prof. Dr. Christian Meyer","100457650","ablation-of-consecutive-atrial-tachycardia-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":140,"type":141},100,"ESTIMATED","INTERVENTIONAL",[144],"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.",[147,148,149,150],"Heart Arrhythmia","Heart Diseases","Arrhythmias, Cardiac","Atrial Tachycardia",[152,153,154,155,156],"Atrial fibrillation","Atrial tachycardia","Pulmonary vein isolation","Electroanatomical mapping","High density mapping","2026-04-27",{"date":159,"type":160},"2026-04-30","ACTUAL",{"date":162,"type":160},"2020-12-22",{"date":164,"type":141},"2027-06",{"name":5,"class":6},6]