Effect of sedation with dexmedetomidine or propofol on gastrointestinal motility in lipopolysaccharide-induced endotoxemic mice

被引:19
作者
Chang, Haiqing [1 ,2 ]
Li, Shuang [1 ,2 ]
Li, Yansong [1 ,2 ]
Hu, Hao [3 ]
Cheng, Bo [1 ,2 ]
Miao, Jiwen [1 ,2 ]
Gao, Hui [1 ,2 ]
Ma, Hongli [1 ,2 ]
Gao, Yanfeng [1 ,2 ]
Wang, Qiang [1 ,2 ]
机构
[1] Xi An Jiao Tong Univ, Affiliated Hosp 1, Dept Anesthesiol, Xian 710061, Shaanxi, Peoples R China
[2] Xi An Jiao Tong Univ, Affiliated Hosp 1, Ctr Brain Sci, Xian 710061, Shaanxi, Peoples R China
[3] Xi An Jiao Tong Univ, Sch Basic Med Sci, Hlth Sci Ctr, Dept Pharmacol, Xian 710061, Shaanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
Endotoxemia; Dexmedetomidine; Gastrointestinal motility; ICU; Propofol; Sedation; Sepsis; SURVIVING SEPSIS; INFLAMMATION; ANESTHESIA; TRANSIT; CARE; REMIFENTANIL; INHIBITION; PROPULSION; RECEPTORS; NEURONS;
D O I
10.1186/s12871-020-01146-z
中图分类号
R614 [麻醉学];
学科分类号
100217 ;
摘要
Background Sepsis often accompanies gastrointestinal motility disorder that contributes to the development of sepsis in turn. Propofol and dexmedetomidine, as widely used sedatives in patients with sepsis, are likely to depress gastrointestinal peristalsis. We queried whether propofol or dexmedetomidine, at sedative doses, aggravated sepsis-induced ileus. Methods Sedative/Anesthetic Scores and vital signs of lipopolysaccharide (LPS)-induced endotoxemic mice were measured during sedation with propofol or dexmedetomidine. Endotoxemic mice were divided into 10% fat emulsion, propofol, saline, and dexmedetomidine group. The gastric emptying, small intestinal transit, tests of colonic motility, gastrointestinal transit and whole gut transit were evaluated at 15 mins and 24 h after intraperitoneal injection of sedatives/vehicles respectively. Results 40 mg center dot kg(- 1)propofol and 80 mu g center dot kg(- 1)dexmedetomidine induced a similar depth of sedation with comparable vital signs except that dexmedetomidine strikingly decreased heart rate in endotoxemic mice. Dexmedetomidine markedly inhibited gastric emptying (P = 0.006), small intestinal transit (P = 0.006), colonic transit (P = 0.0006), gastrointestinal transit (P = 0.0001) and the whole gut transit (P = 0.034) compared with the vehicle, whereas propofol showed no depression on all parts of gastrointestinal motility 15 mins after administration. The inhibitive effects of dexmedetomidine in these tests vanished 24 h after the administration. Conclusions Deep sedation with dexmedetomidine, but not propofol, significantly inhibited gastrointestinal peristalsis in endotoxemic mice while the inhibitory effect disappeared 24 h after sedation. These data suggested that both propofol and dexmedetomidine could be applied in septic patients while dexmedetomidine should be used cautiously in patients with cardiac disease or ileus.
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页数:11
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