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VOLUME 29 , ISSUE 3 ( March, 2025 ) > List of Articles

Original Article

Validity of MACOCHA Score in Predicting First-pass Success of Endotracheal Intubation in Emergency Department: An Observational Study

Krishna Shukla, Bharat B Bhardwaj, Ankita Kabi, Santosh Galagali, Harsimran Manchanda, Shrirang Joshi, Alok Raj

Keywords : Airway management, Critical care, Emergency department, Endotracheal tube, Intubation, MACOCHA score

Citation Information : Shukla K, Bhardwaj BB, Kabi A, Galagali S, Manchanda H, Joshi S, Raj A. Validity of MACOCHA Score in Predicting First-pass Success of Endotracheal Intubation in Emergency Department: An Observational Study. Indian J Crit Care Med 2025; 29 (3):215-222.

DOI: 10.5005/jp-journals-10071-24914

License: CC BY-NC 4.0

Published Online: 28-02-2025

Copyright Statement:  Copyright © 2025; The Author(s).


Abstract

Aim and background: In the emergency department (ED), endotracheal intubation (ETI) is a critical, life-saving procedure. The MACOCHA score predicts difficult intubations in intensive care units (ICUs), but it has not been validated in the ED setting. This study aimed to validate the MACOCHA score for predicting first-pass success of ETI performed in the ED. Materials and methods: This prospective observational study was performed in the ED of a tertiary care institute, over a period of 18 months (September 2020 to February 2022). The study included 74 adult patients who underwent emergency ETI performed by emergency medicine residents. Number of ETI attempts, first-pass success rate, and complications were noted. The MACOCHA score was calculated, and its predictive performance was evaluated. Results: The first-pass success rate was 54.1%, and 54.1% of patients experienced complications, with hypoxia (18.9%) and hypotension (17.6%) being the most common. Four ETI attempts (p = 0.009) as well as presence of arrhythmia (p = 0.004) and cardiac arrest followed by death (p = 0.001) were significantly associated with a higher MACOCHA score, while MACOCHA score was not significantly associated with first-pass success, aspiration, hypotension, hypoxia, and local injury (p > 0.05). The number of ETI attempts and the number of complications were significantly correlated (r = 0.258, p = 0.026). At a cut-off score of 2.50, the MACOCHA score had a sensitivity and specificity of 50.0% and 35.3%, respectively, for the prediction of first-pass success rate [area under the curve: 0.593; 95% confidence interval (CI): 0.463–0.723]. Conclusion: MACOCHA score demonstrated limited performance in predicting the first-pass success rate of ETI in the ED.

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