Comparison of Hepatic and Renal Functions during Intraoperative Sedation with Remimazolam in Elderly Patients under Intrathecal Anesthesia

Background: Remimazolam mesylate for injection (RM) is a new benzodiazepine sedative drug. The aim of this trial was to evaluate the effects of drug metabolism on patients’ hepatic and renal functions by comparing liver and renal function laboratory tests 24 hours before and 24 hours after surgery when using Remimazolam mesylate for injection (RM) for intraoperative sedation. Methods: 40 surgical patients who underwent prostate electrocision under elective intrathecal anesthesia were included in this trial. Changes in the patients’ perioperative hepatic and renal function indexes were analyzed using paired t-tests to assess the safety of Remimazolam mesylate for injection (RM) used for sedation in elderly patients under intrathecal anesthesia. Results: The patients’ preoperative 24-hour ALT (u/L) was 18.10 ± 4.97; the postoperative 24-hour ALT (u/L) was 18.08 ± 5.72; P = 0.975. The preoperative 24-hour AST (u/L) was 18.83 ± 4.89; the postoperative 24-hour AST (u/L) was 19.73 ± 4.91; P = 0.358. The preoperative 24-hour TBil (μmol/L) was 10.34 ± 6.16; the postoperative 24-hour TBil (μmol/L) was 12.03 ± 5.25; P = 0.008. The preoperative 24-hour sCr (μmol/L) was 79.43 ± 26.31; the postoperative 24-hour sCr (μmol/L) was 71.80 ± 22.93; P = 0.001. The preoperative 24-hour BUN (mmol/L) was 5.85 ± 1.75; the postoperative 24-hour BUN (mmol/L) was 4.83 ± 1.71; P < 0.001. The preoperative 24-hour GFR (ml/min) was 82.73 ± 29.88; the postoperative 24-hour GFR (ml/min) was 125.23 ± 60.02; P < 0.001. Important vital signs of the patients during the trial were stable, and laboratory tests of liver and renal function showed no abnormal changes of clinical significance. Conclusion: The intraoperative vital signs of the patients were stable, and no significant adverse reactions were observed in liver and kidney functions when Remimazolam mesylate for injection (RM) was used for intrathecal anesthesia-assisted sedation in elderly patients.