Volume 26, Issue 4 (Avicenna Journal of Clinical Medicine-Winter 2020)                   Avicenna J Clin Med 2020, 26(4): 241-246 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Asadi Fakhr A, Tarbiat M. Comparison Upper Lip Bite Test and Mallampati Test in the Prediction of Difficult Laryngoscopy. Avicenna J Clin Med 2020; 26 (4) :241-246
URL: http://sjh.umsha.ac.ir/article-1-1992-en.html
1- MSc in Anesthesiology, Department of Anesthesiology, School of Paramedicine Hamadan University of Medical Sciences, Hamadan, Iran , Infotext2002@gmail.com
2- Associate Professor, Department of Anesthesia, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
Abstract:   (2377 Views)
Background and Objective: Intubation is the most common method for the management of the upper airway in general anesthesia. In this regard, the prediction of the ease or difficulty of intubation is of paramount importance for the anesthesia team. The main cause of anesthesia-related mortality is failed airway management. The present study aimed to compare the accuracy of the upper lip bite (ULBT) test and mallampati test in the fast prediction of difficult intubation.
Materials and Methods: This descriptive-analytical study was conducted on 418 patients. Prior to anesthesia, the degree of difficulty of intubation was predicted using two predictive tests, namely Mallampati test and upper lip bite test. In addition, after anesthesia, the degree of predicted difficulty was compared with the Cormack-Lehane classification of laryngoscopic view.
Results: As evidenced by the obtained results, the frequency of difficult intubation was reported as 5.3%. Sensitivity, specificity, and negative predictive value of ULBT test were measured at 21.4%, 95.3%, and 97.2%, respectively. Moreover, the accuracy was obtained at 92.8% which was the highest value. On the other hand, sensitivity, specificity, and negative predictive value of Mallampati test were estimated at 34.7%, 87.5%, and 91%, respectively. In addition, the accuracy of this was reported as 81.3%.
Conclusion: The results of the current study indicated that ULBT test as an easy method with high specificity, high predictive value, and high accuracy in the evaluation and prediction of difficult laryngoscopy is more suitable than Mallamati.
Full-Text [PDF 664 kb]   (714 Downloads)    
Type of Study: Original | Subject: Anesthesia

1. Faramarzi E, Soleimanpour H, Khan ZH, Mahmoodpoor A, Sanaie S. Upper lip bite test for prediction of difficult airway: a systematic review. Pak J Med Sci. 2018;34(4):1019-23. PMID: 30190773 DOI: 10.12669/pjms.344.15364
2. Dar SA, Khan MS, Iqbal FA, Nazeer T, Hussain R. Comparison of upper lip bite test (ULBT) with mallampati classification, regarding assessment of difficult intubation. Pak J Med Health Sci. 2017;11:767-9.
3. Varghese A, Mohamed T. A comparison of Mallampati scoring, upper lip bite test and sternomental distance in predicting difficult intubation. Int J Res Med Sci. 2016;4(7):2645-8. DOI: 10.18203/2320-6012.ijrms20161925
4. Zahedi H, OstadAlipour A, Jamshidi M, Nikoseresht M, Malaki A, Noori M. Evaluation of upper lip bite test (ULBT) for prediction of difficult intubations. Iran J Anesthesiol Crit Care. 2016;38(94):51-60. [Persian]
5. Hirmanpour A, Safavi M, Honarmand A, Jabalameli M, Banisadr G. The predictive value of the ratio of neck circumference to thyromental distance in comparison with four predictive tests for difficult laryngoscopy in obstetric patients scheduled for caesarean delivery. Adv Biomed Res. 2014;3:200. PMID: 25337530 DOI: 10.4103/2277-9175.142045
6. Shobha D, Adiga M, Rani DD, Kannan S, Nethra SS. Comparison of upper lip bite test and ratio of height to thyromental distance with other airway assessment tests for predicting difficult endotracheal intubation. Anesth Essays Res. 2018;12(1):124-9. PMID: 29628567 DOI:10.4103/aer.AER_195_17
7. Roth D, Pace NL, Lee A, Hovhannisyan K, Warenits AM, Arrich J, et al. Bedside tests for predicting difficult airways: an abridged cochrane diagnostic test accuracy systematic review. Anaesthesia. 2019;74(7):915-28. PMID: 30843190 DOI: 10.1111/ANAE.14608
8. Javaherforooshzadeh F, Pipelzadeh M, Goosheh M, Safaii S. Determination of the sensitivity and specificity of airway evaluation tests (Malampaty, ULBT, Thyromental distance, Inter incisors gap) in predicting difficult tracheal intubation. J Iranian Soc Anaesthesiol Intens Care. 2012;34(2):59-64. [Persian]
9. Nasiri E, Akbari H, Farrokhi H, Ebrahimi F, Nasiri R. A comparison of the upper lip bite test with inter incisor distance in predicting difficult laryngoscopy and tracheal intubation. J Mazandran Univ Med Sci. 2013;23(105):71-9. [Persian]
10. Allahyary E, Ghaemei SR, Azemati S. Comparison of six methods for predicting difficult intubation in obstetric patients. Iran Red Cresent Med J. 2008;10(3):197-201.
11. Hester CE, Dietrich SA, White SW, Secrest JA, Lindgren KR, Smith T. A comparsion of preoperative air way assessment techniques: the modified Mallampati and Upper lip Bite Test. AANA J. 2007;75(3):177-82.

Add your comments about this article : Your username or Email:

Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2023 CC BY-NC 4.0 | Avicenna Journal of Clinical Medicine

Designed & Developed by : Yektaweb