Open AccessValidity of thyromental height test as a predictor of difficult laryngoscopy: A prospective evaluation comparing modified Mallampati score, interincisor gap, thyromental distance, neck circumference, and neck extension
Author(s) -
K Venkata Nageswara Rao,
D Dhatchinamoorthi,
Amar Nandhakumar,
N Selvarajan,
Hani Rajesh Akula,
Venkatesan Thiruvenkatarajan
Publication year - 2018
Publication title -
indian journal of anaesthesia/indian journal of anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.645
H-Index - 30
eISSN - 0976-2817
pISSN - 0019-5049
DOI - 10.4103/ija.ija_162_18
Subject(s) - medicine , laryngoscopy , population , airway , intubation , prospective cohort study , orthodontics , surgery , environmental health
Thyromental height test (TMHT) is a recently described anatomical bedside screening tool in predicting difficult laryngoscopy. It has been shown to be more accurate than the modified Mallampati score, thyromental distance (TMD), and sternomental distance with regard to sensitivity and positive predictive value (PPV). Airway assessment studies based on the anatomic parameters of the upper airway are limited in the subcontinent population. We attempted this study to evaluate and validate the predictive value of TMHT at 50 mm in an Indian population in predicting difficult laryngoscopy.