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The efficacy of intramuscular ephedrine in preventing hemodynamic perturbations in patients with spinal anesthesia and dexmedetomidine sedation

Authors
 Ji-Hyoung Park  ;  Jae-Kwang Shim  ;  Hyejin Hong  ;  Hyun Kyo Lim 
Citation
 INTERNATIONAL JOURNAL OF MEDICAL SCIENCES, Vol.17(15) : 2285-2291, 2020-08 
Journal Title
 INTERNATIONAL JOURNAL OF MEDICAL SCIENCES 
Issue Date
2020-08
Keywords
Bradycardia ; Dexmedetomidine ; Ephedrine ; Hypotension
Abstract
Dexmedetomidine is used for sedation during spinal anesthesia. The sympatholytic effect of dexmedetomidine may exacerbate hypotension and bradycardia with spinal anesthesia. This study investigated the effects of prophylactic intramuscular injection of ephedrine in preventing hypotension and bradycardia occurring through combined use of spinal anesthesia and dexmedetomidine. One hundred sixteen patients scheduled for lower extremity orthopedic surgery were randomized into two groups receiving either ephedrine 20 mg intramuscularly or equivalent amount of 0.9% NaCl, both with dexmedetomidine and spinal anesthesia. The primary endpoint was the incidence of hemodynamic perturbations (hypotension or bradycardia event). The secondary endpoint was a rescue doses of ephedrine and atropine. The incidence of hemodynamic perturbations was significantly lower in the ephedrine group compared with to the saline group (26.3% versus 55.9%, p = 0.001). The rescue doses of atropine (0.09 ± 0.21 versus 0.28 ± 0.41, p = 0.001) and ephedrine (1.04 ± 2.89 versus 2.03 ± 3.25, p = 0.007) were also significantly lower in the ephedrine group. There was no differences in number of patients with hypertensive (7.0% versus 11.9%, p = 0.375) or tachycardia (1.8% versus 3.4% p = 0.581) episodes. The use of ephedrine intramuscular injections may be a safe and efficacious option in preventing hemodynamic perturbations in patients who received spinal anesthesia and sedation using dexmedetomidine.
Files in This Item:
T202004218.pdf Download
DOI
10.7150/ijms.48772
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Shim, Jae Kwang(심재광) ORCID logo https://orcid.org/0000-0001-9093-9692
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/180147
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