[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100647502":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":29,"centralContacts":33,"locations":38,"responsibleParty":53,"collaborators":25,"id":56,"slug":57,"hasResults":58,"nctId":59,"briefTitle":60,"officialTitle":61,"acronym":62,"eligibilityCriteria":63,"healthyVolunteers":58,"sex":64,"minAge":65,"maxAge":25,"enrollmentInfo":66,"targetDuration":25,"studyType":69,"phases":70,"briefSummary":72,"conditions":73,"keywords":83,"overallStatus":40,"whyStopped":25,"lastUpdateSubmitDate":88,"lastUpdatePostDateStruct":89,"startDateStruct":92,"completionDateStruct":94,"leadSponsor":96,"locationsCount":97},{"fullName":5,"class":6},"University Hospital of Patras","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Serpentine Technique","EXPERIMENTAL","Participants will undergo transradial navigation of radial or brachial artery loops, tortuosity, or sharp angulation using the Serpentine catheter manipulation technique to facilitate coronary angiography or PCI.",[13],"Procedure: Serpentine Technique",{"label":15,"type":16,"description":17,"interventionNames":18},"Hydrophilic Technique","ACTIVE_COMPARATOR","Participants will undergo transradial navigation of radial or brachial artery loops, tortuosity, or sharp angulation using a standard 0.035-inch hydrophilic guidewire to facilitate coronary angiography or PCI.",[19],"Procedure: Hydrophilic Technique",[21,26],{"type":22,"name":9,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","Catheter-based navigation technique using controlled rotational catheter manipulation to cross radial or brachial artery loops, tortuosity, or sharp angulation during transradial coronary angiography or PCI.",[9],null,{"type":22,"name":15,"description":27,"armGroupLabels":28,"otherNames":25},"Navigation of radial or brachial artery loops, tortuosity, or sharp angulation using a 0.035-inch hydrophilic guidewire during transradial coronary angiography or PCI.",[15],[30],{"name":31,"affiliation":5,"role":32},"Grigorios Tsigkas, MD, PhD","PRINCIPAL_INVESTIGATOR",[34],{"name":31,"role":35,"phone":36,"phoneExt":25,"email":37},"CONTACT","+306974466662","gregtsig@hotmail.com",[39],{"facility":5,"status":40,"city":41,"state":25,"zip":42,"country":43,"countryCode":44,"cosmosGeoPoint":45,"geoPoint":50,"contacts":51},"RECRUITING","Pátrai","26504","Greece","GR",{"type":46,"coordinates":47},"Point",[48,49],21.73508,38.2462,{"lat":49,"lon":48},[52],{"name":31,"role":35,"phone":36,"phoneExt":25,"email":37},{"type":32,"investigatorFullName":54,"investigatorTitle":55,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"Grigorios Tsigkas","Tsigkas Grigorios pHD,Assistant proffessor of Cardiology at University Hospital of Patras","100647502","serpentine-vs-traditional-hydrophilic-guidewire-tracking-in-complex-radial-anatomy-100647502",false,"NCT07707427","Serpentine vs Traditional Hydrophilic Guidewire Tracking in Complex Radial Anatomy","Comparison of the \"Serpentine\" Technique Versus Hydrophilic Guidewire 0,035'' for Navigating Radial and Brachial Artery Loops, Tortuosity and Sharp Angulation During Transradial Access.","S-TRACK","Inclusion Criteria:\n\n* Age ≥18 years\n* Feasibility of TRA\n* Indication for coronary angiography\n* Angiographic documentation of radial or brachial artery loop\u002Ftortuosity\n* Written informed consent\n\nExclusion Criteria:\n\n* STEMI - high risk NSTEMI presentation\n* Hemodynamic instability\n* Anatomical contraindications (e.g., arteriovenous fistula)\n* Significant calcification of the radial or brachial artery on angiographic evaluation.","ALL","18 Years",{"count":67,"type":68},204,"ESTIMATED","INTERVENTIONAL",[71],"NA","Coronary angiography and angioplasty are commonly performed through the radial artery. In some patients, anatomical variations of the radial and brachial arteries, such as loops, increased tortuosity or sharp angulations may pose challenges to equipment advancement.\n\nBoth the hydrophilic guidewire 0,035'' approach and the \"Serpentine\" technique have been described in the literature as techniques for overcoming radial anatomical challenges, with the hydrophilic guidewire approach being the more commonly used method.\n\nIn practical terms, both techniques involve the use of the same standard materials, with differences relating mainly to operator handling and technical manipulation. This study does not introduce any experimental device, material, or treatment; instead, it aims to compare the established approach using a 0.035'' hydrophilic guidewire with the emerging \" Serpentine\" technique with respect to effectiveness, procedural time, and safety.",[74,75,76,77,78,9,79,80,81,82],"Transradial Access(TRA)","Coronary Angiography (CAG)","Percutaneous Coronary Intervention (PCI)","Radial Artery Loop","Radial Artery Tortuosity","Hydrophilic Guidewire","Complex Radial Anatomy","Vascular Complications","Coronary Catheterization",[84,85,75,76,86,87,9,79,80,81],"Coronary catheterization","Transradial access(TRA)","Radial artery loop","Radial artery tortuosity","2026-07-15",{"date":90,"type":91},"2026-07-16","ACTUAL",{"date":93,"type":91},"2026-05-14",{"date":95,"type":68},"2029-11",{"name":5,"class":6},1]