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The present study aimed to elucidate the effects of dexmedetomidine on kidney injury of parturients with preeclampsia (PE) undergoing cesarean section. Total 134 cesarean delivery women with PE were randomly divided into intervention group (IG) and control group (CG). Both groups underwent combined spinal and epidural anesthesia (CSEA), the IG was treated with 0.4 μg/(kg·min) dexmedetomidine for 10 min before surgery. The CG was treated with equivalent saline. Heart rate (HR), blood pressure, oxygen saturation (SpO2) of the two groups were measured at different time point after administration. Level of inflammatory factors were detected by enzyme-linked immunosorbent assay (ELISA). Visual analogue score (VAS), Ramsay sedation score (RSS), and kidney injury related indexes were evaluated at different time points. The plasma-drug concentration of patients was determined by High Performance Liquid Chromatography (HPLC) method. Compared with CG, HR, PE, and diastolic blood pressure (DBP) showed lower level while SpO2 showed higher level in IG. Furthermore, expression of tumor necrosis factor α (TNF-α), interleukin-6 (IL-6), and IL-10 in IG was decreased after drug administration, the contents of β2-MG, KIM-1 and urine protein were also decreased in contrast to the CG (all P<0.05). Besides, VAS score was decreased but Ramsay score was increased in the IG (both P<0.05). The results of HPLC showed that the half life of dexmedetomidine was about 20 min and it is speculated that the drug can be quickly metabolized within 24 h. Dexmedetomidine exerted protective effects on kidney injury of parturients with PE undergoing cesarean section.
Pubmed ID: 30962264
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