[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100631109":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":15,"locations":21,"responsibleParty":32,"collaborators":10,"id":36,"slug":37,"hasResults":38,"nctId":39,"briefTitle":40,"officialTitle":41,"acronym":10,"eligibilityCriteria":42,"healthyVolunteers":43,"sex":44,"minAge":45,"maxAge":10,"enrollmentInfo":46,"targetDuration":10,"studyType":49,"phases":10,"briefSummary":50,"conditions":51,"keywords":10,"overallStatus":23,"whyStopped":10,"lastUpdateSubmitDate":55,"lastUpdatePostDateStruct":56,"startDateStruct":59,"completionDateStruct":61,"leadSponsor":63,"locationsCount":64},{"fullName":5,"class":6},"Gazi University","OTHER",[8,12],{"label":9,"type":10,"description":11,"interventionNames":10},"Tattoo Artists (Vibration-Exposed)",null,"Professional tattoo artists aged 18 years and older with at least one year of occupational exposure to hand-arm vibration generated by tattoo machines. Participants will undergo standardized sensory and motor assessments including nerve provocation tests, Semmes-Weinstein monofilament testing, two-point discrimination, vibration perception threshold, grip and pinch strength measurements, and validated hand function questionnaires.",{"label":13,"type":10,"description":14,"interventionNames":10},"Healthy Controls","Age- and sex-matched healthy individuals without occupational vibration exposure and without history of upper extremity trauma, neuropathy, or systemic disease affecting nerve function. Participants will undergo the same standardized sensory and motor assessments as the case group.",[16],{"name":17,"role":18,"phone":19,"phoneExt":10,"email":20},"Sedanur Güngör, MSc.","CONTACT","+905334480698","sedagungor06@hotmail.com",[22],{"facility":5,"status":23,"city":24,"state":10,"zip":10,"country":25,"countryCode":10,"cosmosGeoPoint":26,"geoPoint":31,"contacts":10},"RECRUITING","Ankara","Turkey (Türkiye)",{"type":27,"coordinates":28},"Point",[29,30],32.85427,39.91987,{"lat":30,"lon":29},{"type":33,"investigatorFullName":34,"investigatorTitle":35,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Sedanur Güngör","Principal Investigator,","100631109","median-and-ulnar-nerve-function-in-tattoo-artists-100631109",false,"NCT07496398","Median and Ulnar Nerve Function in Tattoo Artists","Occupational Hand-Arm Vibration Exposure and Its Effects on Median and Ulnar Nerve Function in Tattoo Artists: A Case-Control Study","Inclusion Criteria:\n\n* Age ≥ 18 years\n* Professional tattoo artists with at least 1 year of occupational experience (case group)\n* Healthy individuals without occupational vibration exposure (control group)\n* Voluntary participation and provision of informed consent\n* No upper extremity trauma or surgery within the last 6 months\n\nExclusion Criteria:\n\n* Diagnosis of diabetes mellitus\n* Diagnosis of peripheral neuropathy\n* History of cervical radiculopathy or cervical disc herniation\n* History of upper extremity surgery or injury\n* Presence of rheumatologic or systemic inflammatory diseases\n* Pregnancy\n* Substance or alcohol abuse\n* Engagement in a second occupation involving repetitive hand use or vibration exposure",true,"ALL","18 Years",{"count":47,"type":48},20,"ESTIMATED","OBSERVATIONAL","This case-control study aims to investigate the effects of occupational hand-arm vibration exposure on median and ulnar nerve functions in tattoo artists. Chronic exposure to vibration generated by tattoo machines may lead to neurosensory impairment, reduced tactile sensitivity, and decreased hand strength. Objective assessments including nerve provocation tests, sensory threshold evaluation, two-point discrimination, vibration perception, grip and pinch strength measurements, and validated patient-reported outcome questionnaires will be used. Findings will be compared with age- and sex-matched healthy controls.",[52,53,54],"Peripheral Neuropathy Pain","Carpal Tunnel Syndrome (CTS)","Cubital Tunnel Syndrome","2026-03-23",{"date":57,"type":58},"2026-03-27","ACTUAL",{"date":60,"type":58},"2026-03-01",{"date":62,"type":48},"2026-08-01",{"name":5,"class":6},1]