Intermediate acting non-depolarizing neuromuscular blocking agents and risk of postoperative respiratory complications: prospective propensity score matched cohort study

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Intermediate acting non-depolarizing neuromuscular blocking agents and risk of postoperative respiratory complications: prospective propensity score matched cohort study

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Title: Intermediate acting non-depolarizing neuromuscular blocking agents and risk of postoperative respiratory complications: prospective propensity score matched cohort study
Author: Grosse-Sundrup, Martina; Henneman, Justin P; Sandberg, Warren S; Bateman, Brian Thomas; Uribe, Jose Villa; Nguyen, Nicole Thuy; Ehrenfeld, Jesse M.; Martinez, Elizabeth; Kurth, Tobias; Eikermann, Matthias

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Citation: Grosse-Sundrup, Martina, Justin P Henneman, Warren S Sandberg, Brian T Bateman, Jose Villa Uribe, Nicole Thuy Nguyen, Jesse M Ehrenfeld, Elizabeth A Martinez, Tobias Kurth, and Matthias Eikermann. 2012. Intermediate acting non-depolarizing neuromuscular blocking agents and risk of postoperative respiratory complications: prospective propensity score matched cohort study. BMJ : British Medical Journal 345:e6329.
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Abstract: Objective: To determine whether use of intermediate acting neuromuscular blocking agents during general anesthesia increases the incidence of postoperative respiratory complications. Design: Prospective, propensity score matched cohort study. Setting: General teaching hospital in Boston, Massachusetts, United States, 2006-10. Participants: 18 579 surgical patients who received intermediate acting neuromuscular blocking agents during surgery were matched by propensity score to 18 579 reference patients who did not receive such agents. Main outcome measures: The main outcome measures were oxygen desaturation after extubation (hemoglobin oxygen saturation <90% with a decrease in oxygen saturation after extubation of >3%) and reintubations requiring unplanned admission to an intensive care unit within seven days of surgery. We also evaluated effects on these outcome variables of qualitative monitoring of neuromuscular transmission (train-of-four ratio) and reversal of neuromuscular blockade with neostigmine to prevent residual postoperative neuromuscular blockade. Results: The use of intermediate acting neuromuscular blocking agents was associated with an increased risk of postoperative desaturation less than 90% after extubation (odds ratio 1.36, 95% confidence interval 1.23 to 1.51) and reintubation requiring unplanned admission to an intensive care unit (1.40, 1.09 to 1.80). Qualitative monitoring of neuromuscular transmission did not decrease this risk and neostigmine reversal increased the risk of postoperative desaturation to values less than 90% (1.32, 1.20 to 1.46) and reintubation (1.76, 1.38 to 2.26). Conclusion: The use of intermediate acting neuromuscular blocking agents during anesthesia was associated with an increased risk of clinically meaningful respiratory complications. Our data suggest that the strategies used in our trial to prevent residual postoperative neuromuscular blockade should be revisited.
Published Version: doi:10.1136/bmj.e6329
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3473088/pdf/
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Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:10511336
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