[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"frontal-qrs-t-angle\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:frontal-qrs-t-angle":25},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":4,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":4,"enrollmentInfo":18,"targetDuration":4,"studyType":21,"phases":4,"briefSummary":22,"conditions":23,"keywords":26,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":30,"lastUpdatePostDateStruct":31,"startDateStruct":34,"completionDateStruct":36,"leadSponsor":38,"locationsCount":5},"100650039","relationship-between-frontal-qrs-t-angle-and-collateral-circulation-in-coronary-artery-chronic-total-occlusion-100650039",false,"NCT07743437","Relationship Between Frontal QRS-T Angle and Collateral Circulation in Coronary Artery Chronic Total Occlusion","Frontal QRS-T Angle as an Electrocardiographic Marker for Collateral Circulation in Coronary Artery Chronic Total Occlusion","Inclusion Criteria:\n\n* Patients undergoing diagnostic coronary angiography due to stable angina persisting for a minimum duration of three months.\n* Patients diagnosed with total occlusion in at least one coronary artery, assessed to have chronic total occlusion (CTO) based on clinical and angiographic findings.\n\nExclusion Criteria:\n\n* Patients presenting with malignancies, atrial fibrillation, connective tissue disorders, hepatic failure, or renal failure.\n* A documented history of cardiac pacemaker implantation, prior bypass surgeries, or surgical valve replacements.\n* Congenital heart anomalies.\n* Patients receiving pharmacological interventions that affect ventricular repolarization (other than beta-adrenergic antagonists).\n* Individuals exhibiting abnormal electrolyte levels at the time of admission.","ALL","18 Years",{"count":19,"type":20},100,"ESTIMATED","OBSERVATIONAL","• Aim of the work: To examine the relationship between collateral circulation and the frontal QRS-T angle in patients with chronic total occlusion (CTO)",[24,25],"Chronic Total Occlusion (CTO)","Frontal QRS-T Angle",[27,28],"frontal QRS-T angle","Chronic total occlusion","NOT_YET_RECRUITING","2026-08-02",{"date":32,"type":33},"2026-08-04","ACTUAL",{"date":35,"type":20},"2026-08",{"date":37,"type":20},"2028-09",{"name":39,"class":40},"Assiut University","OTHER"]