Comparison of Various Measures for Anticipating Difficult Laryngoscopy

NCT04711018 | Completed

• 1 other identifier: HasekiTRERH
• Study Type: observational
• Target: 145
• Locations: 1 country
• Sites: 1

Brief Summary

Demographic features and eight diagnostic variables were evaluated for difficult laryngoscopy (DL) predictivity. These were retrognathia, presence of buck teeth, modified Mallampati test (MMT), upper lip bite test (ULBT), sternomental distance (SMD), interincisor distance (IID), thyromental distance, and neck circumference. DL was identified by Grade III-IV view during laryngoscopy according to the Cormack-Lehane (CL) classification.

Conditions

Difficult Laryngoscopy

Keywords

Cephalometry; Endotracheal intubation; Ethnicity; Laryngoscopy

Outcome Measures

Primary Outcomes (1)

• Difficult laryngoscopy

  Grade III or IV laryngeal view before endotracheal intubation

  Up to two weeks after preoperative examination

Study Arms (2)

Group DL (+)

Grade III or IV laryngeal view according to Cormack-Lehane classification

Diagnostic Test: Laryngoscopy

Group DL (-)

Grade I or II laryngeal view according to Cormack-Lehane classification

Diagnostic Test: Laryngoscopy

Interventions

Laryngoscopy DIAGNOSTIC_TEST

The laryngoscopy is performed with the help of an appropriate size Macintosh blade. The patient's head is held in the sniffing position. External manipulation is not used for improving the view in this investigation.

Group DL (+); Group DL (-)

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Consecutive patients attending the anesthesiology out-patient clinic for preoperative evaluation in Kanuni Sultan Suleyman Ed. ad Research Hospital. The planned anesthetic method should be general anesthesia.

You may qualify if:

• ASA I-II
• Candidate for elective surgery under general anesthesia

You may not qualify if:

• History of craniofacial surgery or restriction of cervical mobility,
• Edentulous patients
• Pregnancy
• Patients who do not have a proper mouth opening (\< 3 cm)
• Patients who might require awake intubation or rapid sequence induction.

Sponsors & Collaborators

• Yedikule Training and Research Hospital: lead
• Avcılar Murat Koluk State Hospital: collaborator

Study Sites (1)

Avcılar Murat Koluk State Hospital

Istanbul, 34320, Turkey (Türkiye)

Location

Related Publications (6)

• Shiga T, Wajima Z, Inoue T, Sakamoto A. Predicting difficult intubation in apparently normal patients: a meta-analysis of bedside screening test performance. Anesthesiology. 2005 Aug;103(2):429-37. doi: 10.1097/00000542-200508000-00027.

  PMID: 16052126 BACKGROUND

• el-Ganzouri AR, McCarthy RJ, Tuman KJ, Tanck EN, Ivankovich AD. Preoperative airway assessment: predictive value of a multivariate risk index. Anesth Analg. 1996 Jun;82(6):1197-204. doi: 10.1097/00000539-199606000-00017.

  PMID: 8638791 BACKGROUND

• Apfelbaum JL, Hagberg CA, Caplan RA, Blitt CD, Connis RT, Nickinovich DG, Hagberg CA, Caplan RA, Benumof JL, Berry FA, Blitt CD, Bode RH, Cheney FW, Connis RT, Guidry OF, Nickinovich DG, Ovassapian A; American Society of Anesthesiologists Task Force on Management of the Difficult Airway. Practice guidelines for management of the difficult airway: an updated report by the American Society of Anesthesiologists Task Force on Management of the Difficult Airway. Anesthesiology. 2013 Feb;118(2):251-70. doi: 10.1097/ALN.0b013e31827773b2. No abstract available.

  PMID: 23364566 BACKGROUND

• Kim JC, Ki Y, Kim J, Ahn SW. Ethnic considerations in the upper lip bite test: the reliability and validity of the upper lip bite test in predicting difficult laryngoscopy in Koreans. BMC Anesthesiol. 2019 Jan 10;19(1):9. doi: 10.1186/s12871-018-0675-5.

  PMID: 30630419 BACKGROUND

• Yildirim I, Inal MT, Memis D, Turan FN. Determining the Efficiency of Different Preoperative Difficult Intubation Tests on Patients Undergoing Caesarean Section. Balkan Med J. 2017 Sep 29;34(5):436-443. doi: 10.4274/balkanmedj.2016.0877. Epub 2017 Apr 13.

  PMID: 28443579 RESULT

• Selvi O, Kahraman T, Senturk O, Tulgar S, Serifsoy E, Ozer Z. Evaluation of the reliability of preoperative descriptive airway assessment tests in prediction of the Cormack-Lehane score: A prospective randomized clinical study. J Clin Anesth. 2017 Feb;36:21-26. doi: 10.1016/j.jclinane.2016.08.006. Epub 2016 Oct 31.

  PMID: 28183567 RESULT

MeSH Terms

Interventions

Laryngoscopy

Intervention Hierarchy (Ancestors)

Diagnostic Techniques, Respiratory System; Diagnostic Techniques and Procedures; Diagnosis; Endoscopy; Diagnostic Techniques, Surgical; Minimally Invasive Surgical Procedures; Surgical Procedures, Operative; Otorhinolaryngologic Surgical Procedures

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: M.D.

Study Record Dates

• First Submitted: January 9, 2021
• First Posted: January 15, 2021
• Study Start: February 1, 2020
• Primary Completion: March 31, 2020
• Study Completion: May 31, 2020
• Last Updated: January 15, 2021

Record last verified: 2021-01

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)