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Year : 2020  |  Volume : 14  |  Issue : 3  |  Page : 485-491

Comparison of videolaryngoscope and intubating laryngeal mask airway for tracheal intubation with manual-in-line stabilization in patients undergoing cervical spine surgery

Department of Anaesthesiology and Critical Care, Vardhaman Mahavir Medical College and Safdarjung Hospital, New Delhi, India

Correspondence Address:
Dr. Shipra Aggarwal
Department of Anaesthesiology and Intensive Care, Vardhaman Mahavir Medical College and Safdarjung Hospital, New Delhi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/aer.AER_90_20

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Background: This prospective, randomized study compared CMAC® videolaryngoscope with intubating laryngeal mask airway (ILMA) for intubation under manual-in-line-stabilization (MILS) in patients undergoing cervical spine surgery. Settings and Design: Sixty-five ASA Physical Status Classes I and II patients aged 18–65 years undergoing elective cervical spine surgery were randomly allocated into two groups: group CM-intubation with CMAC® videolaryngoscope (n = 33) and Group IL-intubation using ILMA (n = 32). Materials and Methods: Intubation was performed in all patients after the application of MILS. The primary outcomes included first attempt and overall intubation success rate, intubation time, and apnea time. The secondary objectives were degree of head movement, hemodynamic response, incidence of desaturation, sore throat, and tissue injury. Statistical Analysis: Normality of data was tested by the Kolmogorov–Smirnov test. Quantitative variables were compared using the unpaired t-test or Wilcoxon Mann–Whitney test and qualitative variables were compared using the Chi-square test/Fisher's exact test. P < 0.05 was considered statistically significant. Results: CM group had a higher first attempt (96.97%, P = 0.054) and overall (100%, P = 0.053) intubation success rate than IL group (81.25% and 87.5%, respectively). Group CM had a significantly shorter (P < 0.0001) intubation time (33.13 ± 11.82 s) than IL group (55.71 ± 19.28 s), but group CM had significantly longer (P < 0.0001) apnea time (33.13 ± 11.82 s) than IL group (22.03 ± 7.14 s). The incidence of head movement was significantly lower in IL group (P = 0.011). Hypoxemia did not occur. Postintubation hemodynamic changes and tissue injury were significantly higher in ILMA group. Conclusion: CMAC group had higher intubation success rate and significantly shorter intubation time. However, ILMA group had a significantly shorter apnea time and significantly lower incidence of head movements.

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