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ORIGINAL ARTICLE
Year : 2020  |  Volume : 14  |  Issue : 3  |  Page : 395-400

Comparison of conventional technique versus modified tube first technique of awake nasotracheal fiber-optic intubation: A randomized control open-label trial


1 Department of Anesthesiology and Critical Care, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
2 Department of Anesthesiology and Critical Care, King George's University of Medical Sciences, Lucknow, Uttar Pradesh, India
3 Department of Emergency Medicine, King George's University of Medical Sciences, Lucknow, Uttar Pradesh, India
4 Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India

Correspondence Address:
Dr. Rakesh Kumar
Department of Anesthesiology and Critical Care, All India Institute of Medical Sciences, Jodhpur - 342 005, Rajasthan
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aer.AER_104_20

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Background: Although the conventional awake fiber-optic nasal intubation is most commonly used in anticipated difficult tracheal intubation, it has several potential difficulties. Aims: The aim of this study is to compare another technique modified tube first (MTF) technique with the conventional one in terms of time taken, ease of glottis visualization, number of attempts needed, and complications. Settings and Design: This was a prospective, randomized, open-label trial conducted on 60 patients with an anticipated difficult airway undergoing oromaxillofacial surgery at a tertiary care center. Materials and Methods: The patients were randomized into the MTF and conventional technique groups. Times from insertion of the fiber-optic scope into nares till vocal cord visualization (T1) and from T1 to complete intubation (T2) were measured and compared. Statistical Analysis Used: Statistical analysis was performed using the Statistical Package for the Social Sciences (SPSS) software version 21. Results: Time taken to visualize glottis was significantly less in the MTF technique as compared to the conventional method (mean ± standard deviation = 108.6 ± 43.1 vs. 142 ± 49.2 s, respectively, P = 0.007). Similarly, the total time taken for nasotracheal intubation with modified technique is significantly less as compared to the conventional technique (P = 0.004). Furthermore, there is significantly better ease of glottis visualization (P = 0.001), higher success in minimal attempts (P = 0.02) with significantly lesser incidence of desaturation in MTF technique (P = 0.026). Conclusion: The alternative technique (MTF) is a quicker, easier approach with higher success rate and lesser complications for the placement of an endotracheal tube in a difficult airway scenario.


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