Comparison of Intubating Conditions on the basis of Neuromuscular Monitoring versus Clinical Assessment Guided Tracheal Intubation: A Randomized Interventional Study
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Abstract
Background: Laryngoscopy and endotracheal intubation have been associated with marked hemodynamic responses and hazards. This study was undertaken with the purpose to compare the intubating conditions when the suitable time for intubation was judged by either clinical assessment or train-of-four monitoring.
Methods: 60 patients without any difficult airway predictors, posted for surgery under general anaesthesia, were randomised into two groups. In Group A patients, the trachea was intubated after train of four counts became zero in adductor pollicis muscle, whereas in Group B patients, intubation was done after clinically judging jaw muscle relaxation. The primary objective was to compare Intubating conditions and mean duration of time between the administration of a neuromuscular blocker and endotracheal intubation. The secondary objectives included number of attempts, changes in hemodynamic parameters. Results were analysed by the Analysis of variance and chi-square tests.
Results: In all Group A patients excellent and good intubating conditions were observed, whereas 25 out of 30 patients (83%) in Group B showed excellent and good intubation conditions. The mean time required for intubation was significantly longer in Group A compared to Group B (369 ± 79 s vs. 191 ± 5 s). HR and mean arterial pressure were significantly higher in Group B as compared to Group A after laryngoscopy and tracheal intubation (P < 0.05).
Conclusion: Better intubating conditions and more haemodynamic stability are seen after attaining complete relaxation of laryngeal muscles, as detected by neuromuscular monitoring of adductor pollicis muscle.
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| Issue | Vol 9 No 4 (2023): Autumn |
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| Section | Research Article(s) | |
| DOI | https://doi.org/10.18502/aacc.v9i4.13527 | |
| Keywords | ||
| train of four intubating conditions krieg's score cormack lehane grading | ||
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