Pre-emptive remifentanil alleviates pain associated with tracheal suctioning in patients under mechanical ventilation and goal-directed sedation: A randomized controlled feasibility trial
2021
AIMS To investigate the efficacy of pre-emptive remifentanil in alleviating pain during tracheal suctioning in patients under mechanical ventilation. BACKGROUND Goal-directed sedation is recommended for patients under mechanical ventilation by the current guidelines. Whether goal-directed sedation can prevent pain during tracheal suctioning in these patients is unknown. DESIGN This was a two-centre, randomized, crossover, single-blind trial conducted between August and October 2019. METHODS Patients under mechanical ventilation received low-dose remifentanil, high-dose remifentanil or placebo prior to each tracheal suctioning in a random order. The primary outcomes were evaluated using the critical-care pain observation tool and Richmond agitation-sedation scale after tracheal suctioning. Adverse events were also documented. RESULTS A total of 39 patients who underwent 117 tracheal suctions were enrolled. After the tracheal suction, changes in the critical-care pain observation tool and Richmond agitation-sedation scale scores were significantly lower in the low-dose and high-dose groups than in the placebo group (P < 0.001). A non-significant increase in the absence of spontaneous breathing was observed in the high-dose group compared to that in the placebo group. CONCLUSION A pre-emptive remifentanil bolus of 0.5 μg/kg can mitigate the pain associated with tracheal suctioning.
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