CompletedNCT02944305Updated Mar 3, 2017

A Predictive Model for Difficult Intubation

An observational study in Difficult Intubation, sponsored by Khon Kaen University. Completed at 1 site in Thailand. Open to participants aged 18 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-03-03.

Sponsored by Khon Kaen University · Observational

Study type: Observational
Model: Cohort
Time perspective: Retrospective
Enrollment: 7,500
Ages: 18 Years to 75 Years
Sex: All

Study summary

Failure in airway management is one of the most common anesthesia-related morbidity and mortality. Each individual airway assessment has limitation to predict difficult intubation.

Read the detailed description

Objective: To develop a scoring model from multiple airway assessment to predict difficult intubation.

Methods: This will be a retrospective analytic study. All airway assessment data from medical records of patients aged more than 18 years old underwent general anesthesia in Srinagarind hospital from January 2012 to December 2014 will be used to develop a new scoring prediction model.

Conditions studied

Difficult Intubation

In context

Lead sponsor

Khon Kaen University is the lead sponsor of 160 studies on the registry; 24 are open to participants now.

Counted across the registry records on this site, refreshed daily.

Who can participate

Ages eligible: 18 Years to 75 Years
Sexes eligible: All
Accepts healthy volunteers: Yes
Sampling method: Non-probability sample

Study population

Adult patients undergoing general anesthesia with endotracheal intubation

Inclusion criteria

Adult patients undergoing general anesthesia with endotracheal intubation

Exclusion criteria

Exclusion Criteria:

Incomplete airway assessment in medical record

Study design

Observational model: Cohort
Time perspective: Retrospective
Enrollment: 7,500 participants (actual)
Patient registry: No

Groups and cohorts

Patient with difficult intubation
Group 1: Patient undergoing endotracheal intubation with difficult intubation Group 2: Patient undergoing endotracheal intubation without difficult intubation
Procedure: Endotracheal intubation

Interventions

ProcedureEndotracheal intubation
Endotracheal intubation under direct laryngoscopy using McIntosh blade

What researchers measure

Primary outcomes

Difficult intubation
Laryngoscopic view: grade 1-2 = no difficult intubation; grade 3-4 = difficult intubation
Time frame: 5 minutes

Study locations

1 site

Srinagarind Hospital, Faculty of Medicine, Khon Kaen University
Khon Kaen, 40002, Thailand

References and documents

Publications

Adnet F, Borron SW, Racine SX, Clemessy JL, Fournier JL, Plaisance P, Lapandry C. The intubation difficulty scale (IDS): proposal and evaluation of a new score characterizing the complexity of endotracheal intubation. Anesthesiology. 1997 Dec;87(6):1290-7. doi: 10.1097/00000542-199712000-00005. PubMed 9416711 ↗
Adnet F, Racine SX, Borron SW, Clemessy JL, Fournier JL, Lapostolle F, Cupa M. A survey of tracheal intubation difficulty in the operating room: a prospective observational study. Acta Anaesthesiol Scand. 2001 Mar;45(3):327-32. doi: 10.1034/j.1399-6576.2001.045003327.x. PubMed 11207469 ↗
Aktas S, Atalay YO, Tugrul M. Predictive value of bedside tests for difficult intubations. Eur Rev Med Pharmacol Sci. 2015;19(9):1595-9. PubMed 26004598 ↗
Iohom G, Ronayne M, Cunningham AJ. Prediction of difficult tracheal intubation. Eur J Anaesthesiol. 2003 Jan;20(1):31-6. doi: 10.1017/s0265021503000061. PubMed 12553386 ↗
Merah NA, Foulkes-Crabbe DJ, Kushimo OT, Ajayi PA. Prediction of difficult laryngoscopy in a population of Nigerian obstetric patients. West Afr J Med. 2004 Jan-Mar;23(1):38-41. doi: 10.4314/wajm.v23i1.28079. PubMed 15171524 ↗

Individual participant data

Plan to share: No

Updates

Tracking since Sep 25, 2026

No changes since tracking began. The registry record was last updated on Mar 3, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗

Registry details

Key details

Study ID: NCT02944305
Lead sponsor: Khon Kaen University
Responsible party: Thepakorn Sathitkarnmanee (Associate Professor, Khon Kaen University) — Principal investigator
First posted: Oct 25, 2016
Start date: Sep 2016
Primary completion: Feb 2017
Completion: Feb 2017
Last update: Mar 3, 2017

Study contacts

Sirirat Tribuddharat, MD

principal investigator · Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand

Oversight

Data monitoring committee: No

View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2017. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Other studies from this sponsor

Khon Kaen University

Start the discussion