TMHT - New Method of Difficult Intubation Prediction

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

237 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-09-30

Study Completion Date

2017-01-31

Brief Summary

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The purpose of this study is to assess the usefulness of the Thyromental Height Test in prediction of difficult intubation using double lumen endotracheal tubes in patients scheduled for elective thoracic procedures.

Detailed Description

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Proper prediction of the occurrence of difficult intubation plays a crucial role in anaesthesiology. For years attempts have been made to develop methods allowing anaesthesiologists to correctly predict the occurrence of difficult intubation. None of the currently used tests and anthropometric measurements present satisfying predictive value. Recent studies show promise in Thyromental Height Test (TMHT), which base on the height between the anterior borders of the mentum and the thyroid cartilage, measured while the patient lies in the supine position with closed mouth, as a single, non-invasive predictor of difficult intubation. Use of double lumen endotracheal tubes during thoracic procedures, due to greater diameter of the tube, may lead to higher occurrence of difficult intubation. That is why, the purpose of this study is to assess the usefulness of the TMHT in prediction of difficult intubation using double lumen endotracheal tubes in patients scheduled for elective thoracic procedures and relate it to other, commonly used predictive tests.

During routine, preoperative anaesthetic visit thyromental height, thyromental distance, sternomental distance and Mallampati scale score are assessed. Then, during direct laryngoscopy and intubation, score in Cormack-Lehane scale and occurrence of difficult intubation are noted.

Conditions

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Airway Management Predictive Value of Tests

Keywords

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difficult intubation thyromental height

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* patients scheduled for elective thoracic procedures, requiring general anaesthesia, direct laryngoscopy and intubation with a Robertshaw type double lumen endotracheal tubes
* consent for participation in the trail
* older than 18

Exclusion Criteria

* emergency procedures
* visible anatomic abnormalities
* patients scheduled for awake fibre optic intubation
* lack of consent for participation in the trail

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Responsible Party

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Piotr Palaczyński

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hanna Misiołek, MD PhD

Role: STUDY_CHAIR

School of Medicine with the Division of Dentistry in Zabrze. Medical University of Silesia. Department of Anaesthesiology and Critical Care.

Locations

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Samodzielny Publiczny Szpital Kliniczny nr 1

Zabrze, Silesian Voivodeship, Poland

Site Status

Countries

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Poland

References

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Palczynski P, Bialka S, Misiolek H, Copik M, Smelik A, Szarpak L, Ruetzler K. Thyromental height test as a new method for prediction of difficult intubation with double lumen tube. PLoS One. 2018 Sep 13;13(9):e0201944. doi: 10.1371/journal.pone.0201944. eCollection 2018.

Reference Type DERIVED

PMID: 30212462 (View on PubMed)

Other Identifiers

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TMHT-01

Identifier Type: -

Identifier Source: org_study_id