[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100572870":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":23,"centralContacts":27,"locations":32,"responsibleParty":49,"collaborators":10,"id":52,"slug":53,"hasResults":54,"nctId":55,"briefTitle":56,"officialTitle":57,"acronym":10,"eligibilityCriteria":58,"healthyVolunteers":54,"sex":59,"minAge":10,"maxAge":10,"enrollmentInfo":60,"targetDuration":10,"studyType":63,"phases":10,"briefSummary":64,"conditions":65,"keywords":69,"overallStatus":35,"whyStopped":10,"lastUpdateSubmitDate":73,"lastUpdatePostDateStruct":74,"startDateStruct":77,"completionDateStruct":79,"leadSponsor":81,"locationsCount":82},{"fullName":5,"class":6},"Shanghai 6th People's Hospital","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Difficult transoral and submental thyroidectomy",null,"(1) operative time more than 75% of the overall study cases (2) severe intraoperative injuries :: vascular injury, recurrent laryngeal nerve injury, trachea injury, esophagus injury",[13],"Other: Observations on clinicopathological factors influencing the difficulty of surgery",{"label":15,"type":10,"description":16,"interventionNames":17},"Normal transoral and submental thyroidectomy","the remaining of the entire study cases excluding the difficult cases",[13],[19],{"type":6,"name":20,"description":21,"armGroupLabels":22,"otherNames":10},"Observations on clinicopathological factors influencing the difficulty of surgery","Age, body mass index, gender, thyroid function parameters, lesion size, lesion location, ultrasound data, thyromental distance, neck circumference, sternomental distance, ratio of height-to-thyromental distance, RHTMD, ratio of height-to-sternomental distance, RHSMD",[9,15],[24],{"name":25,"affiliation":5,"role":26},"Ling Zhan, Doctor","PRINCIPAL_INVESTIGATOR",[28],{"name":25,"role":29,"phone":30,"phoneExt":10,"email":31},"CONTACT","08615821120972","rebecca0428zhan@163.com",[33],{"facility":34,"status":35,"city":36,"state":10,"zip":37,"country":38,"countryCode":39,"cosmosGeoPoint":40,"geoPoint":45,"contacts":46},"Shanghai Sixth People's Hospital","RECRUITING","Shanghai","200233","China","CN",{"type":41,"coordinates":42},"Point",[43,44],121.45806,31.22222,{"lat":44,"lon":43},[47],{"name":25,"role":29,"phone":30,"phoneExt":10,"email":48},"15821120972@163.com",{"type":26,"investigatorFullName":50,"investigatorTitle":51,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"Ling Zhan","Principal Investigator","100572870","renovated-prediction-model-for-difficult-transoral-and-submental-endoscopic-thyroidectomy-100572870",false,"NCT06738888","Renovated Prediction Model for Difficult Transoral and Submental Endoscopic Thyroidectomy","Renovated Prediction Model for Difficult. Transoral and Submental Endoscopic Thyroidectomy","Inclusion Criteria:\n\n* Clinical diagnosis of differentiated thyroid cancer with a maximum diameter not exceeding 4 cm\n* Clinical diagnosis of benign thyroid nodule with a maximum diameter not exceeding 6 cm\n* Absence of suspicious lateral lymph nodes or distant metastases\n\nExclusion Criteria:\n\n* Participants with fusion or fixation of lymph nodes in the neck\n* Participants with history of neck surgery or radiation\n* Participants with vocal fold fixation by preoperative fibrolaryngoscope\n* Participants with preoperative examination suggestive of extrathyroidal invasion\n* Participants with a significantly restricted neck and\u002For jaw","ALL",{"count":61,"type":62},300,"ESTIMATED","OBSERVATIONAL","The investigators have previously proposed a prediction model for difficult transoral and submental thyroidectomy through a retrospective study. In order to better promote transoral and submental endoscopic approach for thyroid surgery and to set up an appropriate training course, the investigators aim to renovate and validate the prediction model through a prospective study.",[66,67,68],"Thyroid Cancer","Thyroid Diseases","Thyroid Nodule",[70,71,72],"Endoscopic thyroidectomy","Transoral and submental approach","Prediction model","2026-05-02",{"date":75,"type":76},"2026-05-07","ACTUAL",{"date":78,"type":76},"2024-05-01",{"date":80,"type":62},"2028-12-31",{"name":5,"class":6},1]