[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"difficult-intubation\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:difficult-intubation":26},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,10,0,[8,41,62,84,120,149,178,205,221,248],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":4,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":18,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":23,"conditions":24,"keywords":4,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":30,"lastUpdatePostDateStruct":31,"startDateStruct":34,"completionDateStruct":36,"leadSponsor":38,"locationsCount":4},"100646348","ultrasonographic-airway-assessment-and-vidiac-score-100646348",false,"NCT07694154","Ultrasonographic Airway Assessment and VIDIAC Score","Evaluation of the Relationship Between Ultrasonographic Airway Measurements, Videolaryngoscopic Intubation Findings, and the Video Intubation Difficulty Assessment Classification (VIDIAC) Score in Adult Patients: A Prospective Observational Study","Inclusion Criteria:\n\n* Adults aged 18 to 80 years.\n* American Society of Anesthesiologists (ASA) physical status I-III.\n* Patients scheduled for endotracheal intubation under general anesthesia.\n* Patients who provide written informed consent.\n\nExclusion Criteria:\n\n* Known airway abnormalities.\n* Head and neck tumors.\n* Patients with a tracheostomy.\n* Pregnant patients.\n* Emergency surgical procedures.\n* Patients with limited cervical mobility.\n* Patients with facial trauma.","ALL","18 Years","80 Years",{"count":20,"type":21},100,"ESTIMATED","OBSERVATIONAL","This prospective observational study aims to evaluate the relationship between preoperative ultrasonographic airway measurements and the Video-Intubation Difficulty Assessment Classification (VIDIAC) score in adult patients undergoing endotracheal intubation under general anesthesia. The study will investigate whether airway ultrasound parameters can predict difficult videolaryngoscopic intubation and assess their association with the Cormack-Lehane classification, intubation time, and other airway management outcomes.",[25,26,27,28],"Difficult Airway","Difficult Intubation","Videolaryngoscopic Intubation","Vidiac Score","NOT_YET_RECRUITING","2026-07-17",{"date":32,"type":33},"2026-07-21","ACTUAL",{"date":35,"type":21},"2026-06-22",{"date":37,"type":21},"2027-01-22",{"name":39,"class":40},"Samsun University","OTHER",{"id":42,"slug":43,"hasResults":11,"nctId":44,"briefTitle":45,"officialTitle":46,"acronym":4,"eligibilityCriteria":47,"healthyVolunteers":11,"sex":16,"minAge":48,"maxAge":17,"enrollmentInfo":49,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":51,"conditions":52,"keywords":4,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":54,"lastUpdatePostDateStruct":55,"startDateStruct":57,"completionDateStruct":59,"leadSponsor":61,"locationsCount":4},"100646288","airway-ultrasound-and-pediac-score-in-pediatric-patients-100646288","NCT07694167","Airway Ultrasound and PeDiAC Score in Pediatric Patients","Evaluation of the Relationship Between Ultrasonographic Airway Measurements and the PeDiAC Score in Pediatric Patients: A Prospective Observational Study","Inclusion Criteria:\n\n* Children aged 1-18 years.\n* Patients scheduled for elective surgery.\n* Patients undergoing endotracheal intubation under general anesthesia.\n* American Society of Anesthesiologists (ASA) physical status I-III.\n\nExclusion Criteria:\n\n* Known craniofacial anomalies.\n* Congenital airway malformations.\n* Restricted cervical mobility.\n* Emergency surgical procedures.\n* Patients with a tracheostomy.\n* Inability to obtain parental or legal guardian consent.","1 Year",{"count":50,"type":21},70,"This prospective observational study aims to evaluate the relationship between preoperative ultrasonographic airway measurements and the Pediatric Difficult Airway Classification (PeDiAC) score in pediatric patients undergoing general anesthesia. The study will assess whether ultrasound-derived airway parameters are associated with difficult airway characteristics and PeDiAC scores.",[25,26,53],"Airway Assessment","2026-07-02",{"date":56,"type":33},"2026-07-09",{"date":58,"type":21},"2026-06-24",{"date":60,"type":21},"2027-01-01",{"name":39,"class":40},{"id":63,"slug":64,"hasResults":11,"nctId":65,"briefTitle":66,"officialTitle":67,"acronym":4,"eligibilityCriteria":68,"healthyVolunteers":11,"sex":69,"minAge":17,"maxAge":4,"enrollmentInfo":70,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":72,"conditions":73,"keywords":4,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":75,"lastUpdatePostDateStruct":76,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":4},"100646732","difficult-intubation-in-holep-surgery-100646732","NCT07688954","Difficult Intubation in HoLEP Surgery","Retrospective Evaluation of Difficult Intubation Incidence and Associated Risk Factors in Holmium Laser Enucleation of the Prostate (HoLEP) Surgery","Inclusion Criteria:\n\n* Patients aged over 18 years Underwent elective HoLEP (Holmium Laser Enucleation of the Prostate) surgery Received general anesthesia\n\nExclusion Criteria:\n\nEmergency surgery Missing or incomplete anesthesia records Pre-existing known advanced airway anomalies History of tracheostomy","MALE",{"count":71,"type":21},300,"The goal of this observational study is to determine the incidence of difficult intubation and evaluate the associated clinical risk factors in patients undergoing Holmium Laser Enucleation of the Prostate (HoLEP) surgery under general anesthesia. The main questions it aims to answer are:\n\nWhat is the incidence of difficult intubation among patients undergoing HoLEP surgery? Are clinical parameters such as increased BMI, alpha-blocker use, high prostate volume, high ASA score, and high Mallampati class independent risk factors for difficult intubation in this specific patient population?\n\nParticipants' data will be evaluated retrospectively, and the study involves the following tasks based on medical records:\n\nReviewing preoperative demographic and clinical data including age, BMI, ASA score, comorbid diseases, alpha-blocker use, smoking history, and Mallampati class.\n\nExtracting intraoperative airway management data such as Cormack-Lehane score, number of intubation attempts, and the use of alternative devices like videolaryngoscopes or gum elastic bougies.\n\nAnalyzing surgical parameters including prostate volume and total operation duration to identify their relationship with intubation outcomes.",[26,74],"Holmium Laser Enucleation of the Prostate","2026-06-30",{"date":77,"type":33},"2026-07-07",{"date":79,"type":21},"2026-07-05",{"date":81,"type":21},"2026-12-31",{"name":83,"class":40},"Ankara City Hospital Bilkent",{"id":85,"slug":86,"hasResults":11,"nctId":87,"briefTitle":88,"officialTitle":89,"acronym":4,"eligibilityCriteria":90,"healthyVolunteers":11,"sex":16,"minAge":91,"maxAge":92,"enrollmentInfo":93,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":95,"conditions":96,"keywords":103,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":111,"lastUpdatePostDateStruct":112,"startDateStruct":114,"completionDateStruct":116,"leadSponsor":118,"locationsCount":4},"100642485","perioperative-respiratory-adverse-events-in-cleft-lip-and-palate-surgery-incidence-risk-factors-and-clinical-scoring-100642485","NCT07651904","Perioperative Respiratory Adverse Events in Cleft Lip and Palate Surgery: Incidence, Risk Factors, and Clinical Scoring","Prospective Assessment of Perioperative Respiratory Adverse Events in Pediatric Patients Undergoing Cleft Lip and Palate Surgery: Predictive Risk Factors and the Role of Clinical Airway Scores","Inclusion Criteria:\n\n* Age 0-3 years (infants and toddlers)\n* Scheduled for elective cleft lip and\u002For palate repair surgery\n* General anesthesia planned\n* Written parental\u002Fguardian informed consent obtained\n\nExclusion Criteria:\n\n* Pre-existing respiratory failure or active tracheostomy\n* Emergency surgical procedures\n* Inability to obtain parental\u002Fguardian consent","0 Years","3 Years",{"count":94,"type":21},150,"Cleft lip and palate surgeries present unique anesthetic challenges due to shared airway access with the surgical field, frequent anatomical abnormalities, and a predominantly infant and toddler population. These factors substantially increase the risk of perioperative respiratory adverse events (PRAEs), including laryngospasm, bronchospasm, desaturation, post-extubation stridor, and unanticipated re-intubation.\n\nThis prospective single-center observational cohort study aims to determine the true incidence of PRAEs in pediatric patients undergoing elective cleft lip and\u002For palate repair under general anesthesia, and to identify independent predictive risk factors using standardized airway assessment tools including the Han Mask Ventilation Score and the Intubation Difficulty Score (IDS). No interventions beyond routine clinical practice will be applied. All airway management decisions will remain at the discretion of the attending anesthesiologist.",[97,98,99,100,101,102,26],"Cleft Palate","Cleft Lip","Laryngospasm","Bronchospasm","Airway Obstruction","Postoperative Complications",[104,105,106,107,108,109,110],"cleft lip","cleft palate","pediatric anesthesia","perioperative respiratory adverse events","Han mask ventilation score","micrognathia","intubation difficulty score","2026-06-13",{"date":113,"type":33},"2026-06-16",{"date":115,"type":21},"2026-06-27",{"date":117,"type":21},"2027-12-30",{"name":119,"class":40},"Marmara University Pendik Training and Research Hospital",{"id":121,"slug":122,"hasResults":11,"nctId":123,"briefTitle":124,"officialTitle":125,"acronym":4,"eligibilityCriteria":126,"healthyVolunteers":127,"sex":16,"minAge":17,"maxAge":128,"enrollmentInfo":129,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":131,"conditions":132,"keywords":133,"overallStatus":138,"whyStopped":4,"lastUpdateSubmitDate":139,"lastUpdatePostDateStruct":140,"startDateStruct":142,"completionDateStruct":144,"leadSponsor":146,"locationsCount":148},"100179648","facial-analysis-to-classify-difficult-intubation-100179648","NCT01612949","Facial Analysis to Classify Difficult Intubation","Comparison of a Computerized Image Analysis to Conventional Airway Examination Techniques to Predict Difficult Endotracheal Intubation","Inclusion Criteria:\n\n* Patients requiring endotracheal intubation\n* Patients consenting to acquisition of photographic images of the head and neck\n\nExclusion Criteria:\n\n* Patients who had undergone head or neck surgery\n* Patients in whom central venous catheters or other interventions that prevent full view of the features of the face in frontal and profile views\n* Patients who were neither easy nor difficult to intubate by our criteria",true,"99 Years",{"count":130,"type":21},3500,"The aim of this project is to develop a computer algorithm that can accurately predict how easy or difficult it is to intubate a patient based upon digital photographs from three different perspectives. Such an application can provide a consistent, quantitative measure of intubation difficulty by analyzing facial features in captured photographs - features which have previously been shown to correlate with how easy or how hard it would be to perform the intubation procedure. This is in contrast to established subjective protocols that also serve to predict intubation difficulty, albeit with lower accuracy. A digital application has the potential to decrease potential complications related to intubation difficulty and increase patient safety.",[26],[134,135,136,137],"endotracheal intubation","facial structure","Mallampati score","computerized facial analysis","RECRUITING","2026-03-26",{"date":141,"type":33},"2026-04-01",{"date":143,"type":33},"2012-05",{"date":145,"type":21},"2027-12",{"name":147,"class":40},"Wake Forest University Health Sciences",1,{"id":150,"slug":151,"hasResults":11,"nctId":152,"briefTitle":153,"officialTitle":154,"acronym":155,"eligibilityCriteria":156,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":4,"enrollmentInfo":157,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":159,"conditions":160,"keywords":164,"overallStatus":138,"whyStopped":4,"lastUpdateSubmitDate":169,"lastUpdatePostDateStruct":170,"startDateStruct":172,"completionDateStruct":174,"leadSponsor":176,"locationsCount":148},"100591881","difficult-airway-incidence-in-cardiovascular-surgery-and-a-prediction-model-development-100591881","NCT06986187","Difficult Airway Incidence in Cardiovascular Surgery and a Prediction Model Development","Investigation of Difficult Airway and Difficult Intubation Incidence and Associated Factors in Patients Undergoing Cardiovascular Surgery and a Prediction Model Development","DAPCAP","Inclusion Criteria:\n\n* Undergoing cardiovascular surgery\n* ASA I-IV physical status\n* Over 18 years of age\n\nExclusion Criteria:\n\n* Known difficult airway\n* Head-neck and upper airway pathology\n* Patients at risk of aspiration",{"count":158,"type":21},2000,"A difficult airway is a clinical condition that occurs when one or more of the components of difficult mask ventilation, difficult laryngoscopy, difficult endotracheal intubation, difficult supraglottic airway device (SGA) placement, and inability to intubate-oxygenate are present. Data concerning incidence of difficult airway in patients undergoing cardiovascular surgery is controversial. Unwanted hemodynamic changes that may occur in patients undergoing cardiovascular surgery, combined with hemodynamic changes caused by underlying cardiac pathologies, may also lead to a physiologically difficult airway situation. Since all these interactions, combined with the hemodynamic changes caused by difficult airway interventions, may lead to catastrophic outcomes, it is vital to predict difficult airway in this patient population.",[161,25,26,162,163],"Difficult Airway Intubation","Cardiac Surgery","Cardiac Surgery in Adult Patient",[165,166,167,168],"difficult intubation","difficult airway","difficult airway prediction","difficult airway prediction model","2026-02-03",{"date":171,"type":33},"2026-02-05",{"date":173,"type":33},"2025-06-01",{"date":175,"type":21},"2027-12-01",{"name":177,"class":40},"Diskapi Teaching and Research Hospital",{"id":179,"slug":180,"hasResults":11,"nctId":181,"briefTitle":182,"officialTitle":183,"acronym":184,"eligibilityCriteria":185,"healthyVolunteers":127,"sex":16,"minAge":91,"maxAge":17,"enrollmentInfo":186,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":188,"conditions":189,"keywords":190,"overallStatus":138,"whyStopped":4,"lastUpdateSubmitDate":195,"lastUpdatePostDateStruct":196,"startDateStruct":198,"completionDateStruct":200,"leadSponsor":202,"locationsCount":204},"100583841","video-classification-of-intubation-in-spain-vci-pediatrics-100583841","NCT06881576","Video Classification of Intubation in Spain (VCI) (Pediatrics)","Video Classification of Intubation in Spain (Pediatrics)","VCI","Inclusion Criteria:\n\n* Pediatric Patients who decide to undergo scheduled surgery at our hospital during a period of 1 year (2025).",{"count":187,"type":21},1500,"Use of VCI in Spain",[26],[191,192,193,194],"Difficult intubation","Airway","Videolaryngoscopy","Score","2026-01-05",{"date":197,"type":33},"2026-01-06",{"date":199,"type":33},"2025-03-12",{"date":201,"type":21},"2026-12-01",{"name":203,"class":40},"Clinica Universidad de Navarra, Universidad de Navarra",2,{"id":206,"slug":207,"hasResults":11,"nctId":208,"briefTitle":209,"officialTitle":210,"acronym":184,"eligibilityCriteria":211,"healthyVolunteers":127,"sex":16,"minAge":17,"maxAge":212,"enrollmentInfo":213,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":188,"conditions":214,"keywords":215,"overallStatus":138,"whyStopped":4,"lastUpdateSubmitDate":195,"lastUpdatePostDateStruct":216,"startDateStruct":217,"completionDateStruct":219,"leadSponsor":220,"locationsCount":204},"100557393","video-classification-of-intubation-in-spain-vci-100557393","NCT06537531","Video Classification of Intubation in Spain (VCI)","Video Classification of Intubation in Spain","Inclusion Criteria:\n\n* Patients from any geographical area of the Iberian Peninsula who decide to undergo scheduled surgery at our hospital during a period of 6 months (2024-25).\n\nExclusion Criteria:\n\n* Age \\\u003C18","90 Years",{"count":187,"type":21},[26],[191,192,193,194],{"date":197,"type":33},{"date":218,"type":33},"2024-07-26",{"date":201,"type":21},{"name":203,"class":40},{"id":222,"slug":223,"hasResults":11,"nctId":224,"briefTitle":225,"officialTitle":226,"acronym":4,"eligibilityCriteria":227,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":228,"enrollmentInfo":229,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":231,"conditions":232,"keywords":235,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":238,"lastUpdatePostDateStruct":239,"startDateStruct":241,"completionDateStruct":243,"leadSponsor":245,"locationsCount":148},"100616493","ultrasound-in-predicting-difficult-intubation-in-acromegaly-patients-100616493","NCT07306325","Ultrasound in Predicting Difficult Intubation in Acromegaly Patients","Effectiveness of Ultrasonography in Evaluating the Airway and Predicting Difficult Intubation in Patients Diagnosed With Acromegaly","Inclusion Criteria:\n\n* • Patients diagnosed with acromegaly who are planned for endoscopic pituitary surgery\n\n  * Volunteer participants\n  * American Society of Anesthesiology - ASA 1, 2 and 3 patient groups\n  * Patients with BMI\\\u003C40\n\nExclusion Criteria:\n\n* ASA 4 patient group\n\n  * History of previous neck surgery\n  * Patients with a history of tracheostomy\n  * Patients with a history of radiotherapy to the neck area\n  * Patients with limited neck extension (rheumatological - traumatic reasons)\n  * Patients with masses and lesions in the mouth and airway that may make intubation difficult.","70 Years",{"count":230,"type":21},34,"This is a prospective observational study.The purpose of this study is to predict difficult intubation with ultrasonographic evaluation combined with preoperative physical examination in patients diagnosed with acromegaly and planned for pituitary surgery.",[233,26,234],"Acromegaly Due to Pituitary Adenoma","Airway Ultrasonography",[165,236,237],"acromegaly","airway ultrasonography","2025-12-13",{"date":240,"type":33},"2025-12-29",{"date":242,"type":21},"2025-12-25",{"date":244,"type":21},"2026-03-20",{"name":246,"class":247},"Başakşehir Çam & Sakura City Hospital","OTHER_GOV",{"id":249,"slug":250,"hasResults":11,"nctId":251,"briefTitle":252,"officialTitle":253,"acronym":4,"eligibilityCriteria":254,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":255,"enrollmentInfo":256,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":258,"conditions":259,"keywords":261,"overallStatus":138,"whyStopped":4,"lastUpdateSubmitDate":266,"lastUpdatePostDateStruct":267,"startDateStruct":269,"completionDateStruct":271,"leadSponsor":273,"locationsCount":148},"100535115","stop-bang-questionnaire-a-predictor-of-obstructive-sleep-apnea-and-difficult-maskintubation-100535115","NCT06247631","STOP-Bang Questionnaire: A Predictor of Obstructive Sleep Apnea and Difficult Mask\u002FIntubation?","Can the STOP-Bang Questionnaire Predict Obstructive Sleep Apnea and Difficult Mask\u002FIntubation in Patients Scheduled for Thoracic Surgery? Prospective Observational Study","Inclusion Criteria:\n\n* Patient undergoing thoracic surgery\n* 18-65 years old\n* ASA 1-3\n\nExclusion Criteria:\n\n* Having a history of obstructive sleep apnea syndrome,\n* Having a history of previous head and neck surgery\u002Fradiotherapy,\n* Patients who did not agree to participate in the study","65 Years",{"count":257,"type":21},125,"Difficult airway management remains the leading cause of anaesthesia-related morbidity and mortality. Obstructive sleep apnea syndrome (OSAS) is a warning sign of difficult airway management. Polysomnography is the gold standard for diagnosis of this syndrome, but the STOP-BANG questionnaire is the preferred screening test. In this study, we wanted to find an answer to the question How successful is the STOP-BANG questionnaire in screening for obstructive sleep apnea syndrome (OSAS) in predicting OSAS, difficult mask and difficult intubation in patients undergoing thoracic surgery?",[26,260],"Airway Disease",[165,262,263,264,265],"difficult mask","Obstructive Sleep Apnea Syndrome","STOP-BANG","thoracic surgery","2025-01-28",{"date":268,"type":33},"2025-01-30",{"date":270,"type":33},"2024-01-10",{"date":272,"type":21},"2026-07-10",{"name":274,"class":40},"Atatürk Chest Diseases and Chest Surgery Training and Research Hospital"]