[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100445619":3},{"organization":4,"armGroups":7,"interventions":13,"overallOfficials":19,"centralContacts":19,"locations":20,"responsibleParty":31,"collaborators":19,"id":35,"slug":36,"hasResults":37,"nctId":38,"briefTitle":39,"officialTitle":39,"acronym":19,"eligibilityCriteria":40,"healthyVolunteers":37,"sex":41,"minAge":42,"maxAge":43,"enrollmentInfo":44,"targetDuration":19,"studyType":47,"phases":48,"briefSummary":50,"conditions":51,"keywords":53,"overallStatus":55,"whyStopped":19,"lastUpdateSubmitDate":56,"lastUpdatePostDateStruct":57,"startDateStruct":60,"completionDateStruct":62,"leadSponsor":64,"locationsCount":65},{"fullName":5,"class":6},"Sohag University","OTHER",[8],{"label":9,"type":6,"description":10,"interventionNames":11},"doppler US for native AVF in upper limb","creation of native arteriovenous fistula in upper limb in chronic kidney disease patients on hemodialysis",[12],"Diagnostic Test: doppler ultrasound",[14],{"type":15,"name":16,"description":17,"armGroupLabels":18,"otherNames":19},"DIAGNOSTIC_TEST","doppler ultrasound","Doppler ultrasound evaluation of AVF:\n\n* pre-operative evaluation: venous system (patency of central veins and deep venous system, patency of superficial veins, the latter diameter, depth form skin surface, distance from nearby artery, any sizable adjacent tributaries), and arterial system including morphological evaluation (course, diameter, wall alterations, any stenoocclusive disorders) and functional evaluation (flow volume and ability to dilate)\n* post-operative evaluation: anastomotic site (type of anastomosis, patency, diameter, PSV and any other morphologic alterations), inflow afferent artery (diameter, PSV and flow volume), outflow efferent vein (patency, diameter, color flow, spectral waveform)\n* the first post-operative sonographic evaluation will be done after removal of stiches from the wound and periodic monitoring every one week up until completion of 6 weeks",[9],null,[21],{"facility":5,"status":19,"city":22,"state":19,"zip":19,"country":23,"countryCode":24,"cosmosGeoPoint":25,"geoPoint":30,"contacts":19},"Sohag","Egypt","EG",{"type":26,"coordinates":27},"Point",[28,29],31.69478,26.55695,{"lat":29,"lon":28},{"type":32,"investigatorFullName":33,"investigatorTitle":34,"investigatorAffiliation":5,"oldNameTitle":19,"oldOrganization":19},"PRINCIPAL_INVESTIGATOR","Areej Mahmoud Ibrahim","Resident doctor at diagnostic and interventional radiology department Sohag University Hospitals","100445619","the-role-of-doppler-ultrasound-in-assessment-of-local-factors-affecting-maturation-of-arteriovenous-fistula-in-hemodialysis-patient-100445619",false,"NCT05082792","The Role of Doppler Ultrasound in Assessment of Local Factors Affecting Maturation of Arteriovenous Fistula in Hemodialysis Patient","Inclusion Criteria:\n\nCKD and ESRD patients on hemodialysis, in whom native arteriovenous fistula operation is needed\n\n* both sexes are included.\n* age group from 15-80years\n* upper limb arteriovenous fistula only.\n* native arteriovenous fistula.\n* surgically succeeded AVF\n\nExclusion Criteria:\n\nwe will exclude:\n\n* patients refused to be in the research.\n* Patients with AVF not in the upper limbs.\n* Patient of age less than 15years and above 80years.\n* patients with synthetic grafts.","ALL","15 Years","80 Years",{"count":45,"type":46},50,"ESTIMATED","INTERVENTIONAL",[49],"NA","the long term survival of the chronic kidney disease (CKD) patients depends on the adequacy of dialysis via good vascular access. the arteriovenous fistula (AVF) is the preferred vascular access for hemodialysis. pre-operative evaluation and periodic monitoring of the AVF after creation with well-defined applied criteria by color doppler ultrasound (CDUS) will help to reduce rate of access failure and achieve better cumulative patency rate of fistulas.",[52],"Doppler Ultrasound in Arteriovenous Fistula Preoperative Evaluation and Post-operative Periodic Monitoring",[54],"hemodialysis in CKD. AVF. CDUS","UNKNOWN","2021-10-15",{"date":58,"type":59},"2021-10-19","ACTUAL",{"date":61,"type":59},"2021-10-01",{"date":63,"type":46},"2022-03-31",{"name":5,"class":6},1]