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Benzodiazepine and opioid sedation attenuate the sympathetic response to fiberoptic bronchoscopy. Prophylactic labetalol gave no additional benefit. Results of a randomized double-blind placebo-controlled study.
Fox BD, Krylov Y, Leon P, Ben-Zvi I, Peled N, Shitrit D, Kramer MR. Fox BD, et al. Among authors: krylov y. Respir Med. 2008 Jul;102(7):978-83. doi: 10.1016/j.rmed.2008.02.011. Epub 2008 Apr 3. Respir Med. 2008. PMID: 18394874 Free article. Clinical Trial.