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Prediction of Difficult Airway-Ratio of Patient’s Height to Thyromental Distance

*, Suresh Y. V and *, Anupama Suresh Y and *, Amrutharaju C M (2014) Prediction of Difficult Airway-Ratio of Patient’s Height to Thyromental Distance. Journal of Medical Science and Clinical Research, 2 (8). pp. 2077-2081. ISSN (e)-2347-176x

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Abstract

Preoperative evaluation is important in the detection of patients at risk for difficult tracheal intubation. Thyromental distance (TMD) is often used for these purposes, The purpose of the present study was to evaluate and compare the accuracies of the ratio of patient’s height to TMD (ratio of height to TMD = RHTMD) in the prediction of difficult tracheal intubation. Four hundred patients were evaluated preoperatively using the TMD ,Modified Mallampati test(MP),and RHTMD. The three tests were compared analyzing the area under the receiver operating characteristic curves (AUC). Difficult laryngoscopy occurred in 13 patients (3.3%). The AUC of RHTMD was significantly greater (P<0.001) when compared to TMD, indicating a more accurate prediction by the RHTMD. RHTMD has shown to be highly specific(97.1%) and also sensitive(76.9%) with accuracy(96.5%) in predicting difficult intubation. The study is more sensitive and specific in comparison with MP. Based on our results, we recommend that the RHTMD should be used instead of the TMD.

Item Type: Article
Uncontrolled Keywords: Difficult Airway,Modified Mallampati test, Thyromental distance, Ratio of patient’s Height to Thyromental Distence
Subjects: Medicine > KMC Mangalore > Anaesthesiology
Medicine > KMC Mangalore > Obstetrics & Gynaecology
Depositing User: KMCMLR User
Date Deposited: 22 Feb 2016 14:56
Last Modified: 22 Feb 2016 14:56
URI: http://eprints.manipal.edu/id/eprint/145386

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