Ultrasound Measurement of Skin-to-Epiglottis Distance for Prediction of Difficult Airway in Adult Patients
Ultrasound Measurement of Skin to Epiglottis Distance for Prediction of Difficult Airway in Adult Patients
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Gedetailleerde beschrijving
Studietype
Studietype
Inschrijving (Geschat)
Inschrijving
Contacten en locaties
Studiecontact
Studiecontact
- Naam: Almıla G Pamuk, Doç. Dr.
- Telefoonnummer: 03123051207 9005335296325
- E-mail: gulsunp@yahoo.com
Studie Contact Back-up
- Naam: muhammed r hız, research assistant
- Telefoonnummer: 9003123051207 9005417800327
- E-mail: drrasithiz@gmail.com
Studie Locaties
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Altındağ
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Ankara, Altındağ, Turkije (Türkiye), 06320
- Hacettepe Univercity
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Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- ≥18 yaş elective surgery
Exclusion Criteria:
- emergency surgery
- head and neck surgery
- pregnant patients
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Skin to epiglottis distance
Tijdsspanne: Preintubation (within 30 minutes before procedure)
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Distance measured via ultrasound in the anterior neck region
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Preintubation (within 30 minutes before procedure)
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Secundaire uitkomstmaten
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Incidence of difficult laryngoscopy (Cormack-Lehane grade ≥ 3)
Tijdsspanne: During intubation procedure (intraoperative period)
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The proportion of patients with difficult laryngoscopy defined as Cormack-Lehane grade 3 or 4 during direct laryngoscopy.
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During intubation procedure (intraoperative period)
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Intubation Difficulty Score (IDS)
Tijdsspanne: During intubation procedure
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Assessment of intubation difficulty using the Intubation Difficulty Score based on number of attempts, operators, alternative techniques, glottic exposure, lifting force, external laryngeal pressure, and vocal cord position.
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During intubation procedure
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Correlation between ultrasound measurements and Mallampati score
Tijdsspanne: Preoperative assessment
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Correlation between tracheal diameter and skin to epiglottis distance measured by ultrasound and preoperative Mallampati classification.
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Preoperative assessment
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Skin-to-Epiglottis Distance Measured by Ultrasound
Tijdsspanne: Immediately before induction of anesthesia
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Skin-to-epiglottis distance will be measured using ultrasound immediately before anesthesia induction.
The distance is recorded in millimeters (mm) as a continuous variable.
Larger values indicate a greater skin-to-epiglottis distance and may be associated with an increased likelihood of difficult laryngoscopy.
This is not a scored scale; therefore, no predefined minimum or maximum score exists.Cormack-Lehane Grading System.
Scores range from Grade I to Grade IV.
Grade I indicates full visualization of the glottis (easier laryngoscopy), whereas Grade IV indicates that neither the glottis nor the epiglottis is visible (most difficult laryngoscopy).
Higher grades indicate a worse airway view.
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Immediately before induction of anesthesia
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Medewerkers en onderzoekers
Sponsor
Sponsor
Onderzoekers
Onderzoekers
- Studie directeur: Almıla g Pamuk, Doç Dr., Hacettepe Univercity
Publicaties en nuttige links
Algemene publicaties
- Cook TM, Woodall N, Frerk C; Fourth National Audit Project. Major complications of airway management in the UK: results of the Fourth National Audit Project of the Royal College of Anaesthetists and the Difficult Airway Society. Part 1: anaesthesia. Br J Anaesth. 2011 May;106(5):617-31. doi: 10.1093/bja/aer058. Epub 2011 Mar 29.
- Falcetta S, Cavallo S, Gabbanelli V, Pelaia P, Sorbello M, Zdravkovic I, Donati A. Evaluation of two neck ultrasound measurements as predictors of difficult direct laryngoscopy: A prospective observational study. Eur J Anaesthesiol. 2018 Aug;35(8):605-612. doi: 10.1097/EJA.0000000000000832.
- Gani, E. (2020). Obez hastalarda zor entübasyonun öngörülmesinde ultrasonla ölçülen cilt-epiglot mesafesinin önemi (Tıpta Uzmanlık Tezi). Düzce Üniversitesi, Tıp Fakültesi, Anesteziyoloji ve Reanimasyon Anabilim Dalı, Düzce.
- Uzumcugil F, Celebioglu EC, Ozkaragoz DB, Yilbas AA, Akca B, Lotfinagsh N, Celebioglu B. Body Surface Area Is Not a Reliable Predictor of Tracheal Tube Size in Children. Clin Exp Otorhinolaryngol. 2018 Dec;11(4):301-308. doi: 10.21053/ceo.2018.00178. Epub 2018 Aug 25.
- Ahmad I, El-Boghdadly K, Iliff H, Dua G, Higgs A, Huntington M, Mir F, Nouraei SAR, O'Sullivan EP, Patel A, Rivett K, McNarry AF. Difficult Airway Society 2025 guidelines for management of unanticipated difficult tracheal intubation in adults. Br J Anaesth. 2026 Jan;136(1):283-307. doi: 10.1016/j.bja.2025.10.006. Epub 2025 Nov 7.
- Altinsoy KE, Bayhan BU. Ultrasound-Measured Skin-to-Epiglottis Distance as a Predictor of Difficult Intubation in Obese Patients: A Prospective Observational Study. J Clin Med. 2025 Mar 19;14(6):2092. doi: 10.3390/jcm14062092.
- Sayir TN, Tuncer B, Erkilic E. Evaluation of upper airway ultrasonographic measurements in predicting difficult intubation: A cross-section of the Turkish population. Open Med (Wars). 2024 Aug 21;19(1):20241013. doi: 10.1515/med-2024-1013. eCollection 2024.
- Cinar Kose EO, Tekin M, Cesur S, Cam I, Baykara ZN. Evaluation of neck ultrasound measurements as a difficult airway predictor: A prospective observational study. Medicine (Baltimore). 2024 Jul 19;103(29):e38591. doi: 10.1097/MD.0000000000038591.
- Daggupati H, Maurya I, Singh RD, Ravishankar M. Development of a scoring system for predicting difficult intubation using ultrasonography. Indian J Anaesth. 2020 Mar;64(3):187-192. doi: 10.4103/ija.IJA_702_19. Epub 2020 Mar 11.
- Sotoodehnia M, Rafiemanesh H, Mirfazaelian H, Safaie A, Baratloo A. Ultrasonography indicators for predicting difficult intubation: a systematic review and meta-analysis. BMC Emerg Med. 2021 Jul 3;21(1):76. doi: 10.1186/s12873-021-00472-w.
- Zhang W, Du L, Huang Y, Liu D, Li T, Zheng J. Artificial intelligence for difficult airway assessment: a protocol for a systematic review with meta-analysis. BMJ Open. 2025 Jun 10;15(6):e096744. doi: 10.1136/bmjopen-2024-096744.
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Meer informatie
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Trefwoorden
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Andere studie-ID-nummers
Andere studie-ID-nummers
- SBA 26/158
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