Relationship Between Upper Airway Ultrasound Parameters and Degree of Difficult Laryngoscopy for Endotracheal Intubation

Fatemeh  Falsafi; ali  shafikhani; Nahid Nasseh; Hamid Kayalha

doi:10.22037/jcma.v8i1.38076

Journal of Cellular & Molecular Anesthesia

Journal Information Editors & Boards Indexing and Listing Sources Journal Metrics Open Peer Review (OPR)Publication Ethics and Malpractice Statement New Publisher Announcement Reviewer and AE Registration Form Contact Us Support

APC

Authors Guide Submit Manuscript

https://doi.org/10.22037/jcma.v8i1.38076

Relationship Between Upper Airway Ultrasound Parameters and Degree of Difficult Laryngoscopy for Endotracheal Intubation

Author(s):

Fatemeh Falsafi^1,*,

ali shafikhani

,

Nahid Nasseh²,

Hamid Kayalha

11. Department of Anesthesiology, Clinical Research Development Unit, 22 Bahman Hospital, Qazvin University of Medical Sciences, Qazvin, Iran

2Department of Anesthesiology, Faculty of Medicine, Metabolic Diseases Research Center, Qazvin University of Medical Sciences, Qazvin, Iran

Journal of Cellular & Molecular Anesthesia:Vol. 8, issue 1; e150201

Published online:Jul 16, 2022

Article type:Original Articles

How to Cite:Fatemeh Falsafiali shafikhani Nahid NassehHamid KayalhaRelationship Between Upper Airway Ultrasound Parameters and Degree of Difficult Laryngoscopy for Endotracheal Intubation.J Cell Mol Anesth.8(1):e150201.https://doi.org/10.22037/jcma.v8i1.38076.

Abstract

Background: Limited research has been conducted on the role of ultrasound in predicting difficult laryngoscopy (DL). This study aimed to evaluate the predictive values of upper airway ultrasound parameters for the degree of DL during intubation. Materials and Methods: This observational-prospective study was performed on 120 patients requiring intubation during elective surgery. Initially, the degree of DL was assessed by the Mallampati Scale. The patient's neck circumference was then measured and recorded. Ultrasound was used to determine the hyomental distance in the neutral position (HMDN), the head extension (HMDE), as well as tongue width (TW), tongue thickness (TT), oral cavity height ratio (OCH), the amount of soft tissue (ST), and the Tongue thickness-to-oral cavity height ratio (TT/OCH). Afterward, the patients underwent general anesthesia and were intubated. The degree of difficult intubation was measured based on the Cormack-Lehane classification system. The patients were divided into easy and difficult laryngoscopy groups. Finally, the effectiveness of the two methods of ultrasound and intubation was compared. Results: The Cormack score and Mallampati class recorded intubation difficulty as 28.3% and 30.8%, respectively. According to the Cormack score, only the neck circumference was significantly associated with intubation difficulty (P=0.002). Regarding Mallampati class, the neck circumference and HMDN, HMDE, TT, OCH, and ST were significantly associated with DL (P <0.05). The numerical value of the area under the curve (AUC) in the receiver operating characteristic (ROC) curve for sonographic parameters based on the Cormack score and Mallampati scoring system was poor (AUC <0.7). Conclusion: The results showed that the accuracy of ultrasound criteria in predicting the severity of intubation with laryngoscopy is poor.

Keywords

References

1.
References are in the PDF file of the article.

comments

Crossmark

Checking

Share on

Comments

Number of Comments:0

Cited by

CrossRef 0

Metrics

Get Permission (article level)

Purchasing Reprints

Copyright Clearance Center (CCC) handles bulk orders for article reprints for Brieflands. To place an order for reprints, please click here ( https://www.copyright.com/landing/reprintsinquiryform/ ). Clicking this link will bring you to a CCC request form where you can provide the details of your order. Once complete, please click the ‘Submit Request’ button and CCC’s Reprints Services team will generate a quote for your review.

Search Relations

Author(s):

Fatemeh Falsafi:[PubMed][Scholar]
ali shafikhani:[PubMed][Scholar]
Nahid Nasseh:[PubMed][Scholar]
Hamid Kayalha:[PubMed][Scholar]