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
Studieoversigt
Status
Status
Betingelser
Betingelser
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Almıla G Pamuk, Doç. Dr.
- Telefonnummer: 03123051207 9005335296325
- E-mail: gulsunp@yahoo.com
Undersøgelse Kontakt Backup
- Navn: muhammed r hız, research assistant
- Telefonnummer: 9003123051207 9005417800327
- E-mail: drrasithiz@gmail.com
Studiesteder
-
-
Altındağ
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Ankara, Altındağ, Tyrkiet (Türkiye), 06320
- Hacettepe Univercity
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- ≥18 yaş elective surgery
Exclusion Criteria:
- emergency surgery
- head and neck surgery
- pregnant patients
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Skin to epiglottis distance
Tidsramme: 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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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Incidence of difficult laryngoscopy (Cormack-Lehane grade ≥ 3)
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Studieleder: Almıla g Pamuk, Doç Dr., Hacettepe Univercity
Publikationer og nyttige links
Generelle publikationer
- 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.
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- SBA 26/158
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IPD-planbeskrivelse
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IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- SAP
- ICF
- ANALYTIC_CODE
- CSR
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