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Year : 2019  |  Volume : 35  |  Issue : 1  |  Page : 25-29

Comparative evaluation of Truview evo2 and Macintosh laryngoscope for ease of orotracheal intubation in children – A prospective randomized controlled trial

1 Department of Anaesthesiology and Intensive Care, Maulana Azad Medical College (MAMC) and Associated Hospitals; Department of Anaesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, India
2 Department of Anaesthesiology and Intensive Care, Maulana Azad Medical College (MAMC) and Associated Hospitals, New Delhi, India
3 Department of Anaesthesiology and Intensive Care, Maulana Azad Medical College (MAMC) and Associated Hospitals, New Delhi; Department of Critical Care Medicine, Asian Institute of Medical Sciences, Faridabad, Haryana, India

Correspondence Address:
Anant Vikram Pachisia
72, Surya Kiran Apartments, D Block, VikasPuri, Delhi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/joacp.JOACP_118_18

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Background and Aims: Truview evo2 has been found to improve the glottic view when compared with the Miller blade in pediatric population. However, there is limited literature comparing it with Macintosh laryngoscope in children. We thus aimed to assess and compare Truview evo2 with the Macintosh laryngoscope for orotracheal intubation in children with regards to time to intubate, laryngoscopic view, ease of intubation, and associated hemodynamic changes. Material and Methods: Fifty ASA I-II children aged 2–8 years for elective surgery requiring general anesthesia with orotracheal intubation participated in this prospective randomized-controlled study. They were randomly allocated to two groups. In group-M (N = 25), laryngoscopy and intubation were performed using Macintosh laryngoscope, and in group-T (N = 25), Truview evo2 laryngoscope was used. Modified Cormack–Lehane grade, time to intubation, intubation difficulty score (IDS), and hemodynamic changes were compared between the groups. Data were analyzed using SPSS statistical software version 17 and P value <0.05 was considered statistically significant. Results: CL grade 1 was found in a larger number of patients of group-T (P = 0.003) and CL grades2a and 2b were found in a larger number of patients of group-M (P = 0.023 and P = 0.037, respectively). The mean time to intubation was significantly longer in group-T (19.0 ± 3.4 seconds) than in group-M (13.1 ± 2.1 seconds), P = 0.00. The over all IDS was lower in group-T than group M [i.e. median (IQR): 0 (0-0) vs 1 (0-2), respectively]. Heart rate, systolic and diastolic blood pressure, and oxygen saturation were comparable between the groups at all times. Conclusion: Truview evo2 provides better laryngeal view and has a lesser IDS, but takes longer for intubation, when compared to the Macintosh laryngoscope in children.

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