Caffeine Accelerates Emergence from Isoflurane Anesthesia in Humans
| Autor: | Robert Fong, Jeffrey L. Apfelbaum, Lingzhi Wang, James P. Zacny, Aaron P. Fox, Suhail Khokhar, Zheng Xie |
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| Rok vydání: | 2018 |
| Předmět: |
Extramural
business.industry Crossover study Double blind 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Anesthesiology and Pain Medicine Saline solutions chemistry Isoflurane 030202 anesthesiology Anesthesia Anesthetic Medicine Anesthesia Recovery Period Caffeine business 030217 neurology & neurosurgery medicine.drug |
| Zdroj: | Anesthesiology. 129:912-920 |
| ISSN: | 0003-3022 |
| DOI: | 10.1097/aln.0000000000002367 |
| Popis: | Editor’s Perspective What We Already Know about This Topic What This Article Tells Us That Is New Background There are currently no drugs clinically available to reverse general anesthesia. We previously reported that caffeine is able to accelerate emergence from anesthesia in rodents. This study was carried out to test the hypothesis that caffeine accelerates emergence from anesthesia in humans. Methods We conducted a single-center, randomized, double-blind crossover study with eight healthy males. Each subject was anesthetized twice with 1.2% isoflurane for 1 h. During the final 10 min of each session, participants received an IV infusion of either caffeine citrate (15 mg/kg, equivalent to 7.5 mg/kg of caffeine base) or saline placebo. The primary outcome was the average difference in time to emergence after isoflurane discontinuation between caffeine and saline sessions. Secondary outcomes included the end-tidal isoflurane concentration at emergence, vital signs, and Bispectral Index values measured throughout anesthesia and emergence. Additional endpoints related to data gathered from postanesthesia psychomotor testing. Results All randomized participants were included in the analysis. The mean time to emergence with saline was 16.5 ± 3.9 (SD) min compared to 9.6 ± 5.1 (SD) min with caffeine (P = 0.002), a difference of 6.9 min (99% CI, 1.8 to 12), a 42% reduction. Participants emerged at a higher expired isoflurane concentration, manifested more rapid return to baseline Bispectral Index values, and were able to participate in psychomotor testing sooner when receiving caffeine. There were no statistically significant differences in vital signs with caffeine administration and caffeine-related adverse events. Conclusions Intravenous caffeine is able to accelerate emergence from isoflurane anesthesia in healthy males without any apparent adverse effects. |
| Databáze: | OpenAIRE |
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