Trial reportPloS one2018
Thyromental height test as a new method for prediction of difficult intubation with double lumen tube.
Trial report in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02988336 (Thyromental Height Test as a New Method for Prediction of Difficult Intubation With Double Lumen Tube), which is not on this map. Cited by 11 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Thyromental Height Test as a New Method for Prediction of Difficult Intubation With Double Lumen Tube
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- Predictive performance of thyromental height for difficult laryngoscopies in adults: a systematic review and meta-analysis.Brazilian journal of anesthesiology (Elsevier)Pooled it
- Comparison of the new flexible tip bougie catheter and standard bougie stylet for tracheal intubation by anesthesiologists in different difficult airway scenarios: a randomized crossover trial.BMC anesthesiology · 2020Trial
- Nuances of perioperative lung isolation and airway management.Journal of thoracic disease · 2026Review
- Predictive accuracy of intubation scores and parameters for double lumen tube placement in elective thoracic surgery: a prospective study.BMC anesthesiology · 2026Article
- Thyromental Height Test as a Method for Predicting Difficult Intubation in Patients with Obesity: A Prospective Observational Study.Journal of clinical medicine · 2025Article
- Assessment of predictive value of thyromental height in predicting difficult laryngoscopy compared with Mallampati, and thyromental distance among surgical patient who will take general anesthesia at selected governmental hospital cross-sectional study: Ethiopia, 2022.Annals of medicine and surgery (2012) · 2024Article
- Expert consensus on difficult airway assessment.Hepatobiliary surgery and nutrition · 2023Review
- Diagnostic value of ultrasound for predicting the occurrence of airway difficulty in patients undergoing anesthesia.American journal of translational research · 2023Article
- Development and validation of a difficult laryngoscopy prediction model using machine learning of neck circumference and thyromental height.BMC anesthesiology · 2021Article
- Evaluation of different airway tests to determine difficult intubation in apparently normal adult patients: undergoing surgical procedures.Patient safety in surgery · 2020Article
- Evaluation of thyromental height as a predictor of difficult laryngoscopy and difficult intubation: a cross-sectional observational study.Brazilian journal of anesthesiology (Elsevier)Observational
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPredicting difficult intubation is of high clinical interest.
methods237 patients aged ≥18 years were included in the study. Preoperative airway evaluation included: Mallampati test, thyromental distance, sternomental distance and thyromental height test. During direct laryngoscopy Cormack & Lehane classification was graded. We calculated the ROC AUC, sensitivity and specificity for thyromental height test as a primary end point of our study.
resultsOnly thyromental height test and Cormack-Lehane scale proved significant on occurrence of difficult intubation. The optimal sensitivity and specificity values of thyromental height test were met with a cut off value of 50 mm. With 1 mm increase in thyromental height test, risk of difficult intubation decreased by 7%.
conclusionThyromental height test is a simple, easy to perform and non-invasive test to predict difficult intubation in patients scheduled for elective double lumen tube intubation during thoracic surgical procedures. With 1 mm above 50 mm increase in thyromental height test the risk of difficult intubation decreased by 7%.
trial registrationClinicaltrials.gov Identifier: NCT02988336.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.