Effect of Remimazolam on Cellular Immune Response and Postoperative Recovery in Patients Undergoing Laparoscopic Colorectal Cancer Surgery
Abstract
We aimed to evaluate the effect of remimazolam-based general anesthesia on cellular immune function and postoperative recovery quality in patients undergoing laparoscopic radical colorectal cancer surgery.
A total of 90 patients scheduled for elective laparoscopic colorectal cancer radical surgery were randomly divided into 2 groups: the remimazolam group (Group R) and the propofol group (Group P), with 45 patients in each group. Anesthesia induction in Group R involved intravenous remimazolam, and in Group P, intravenous propofol until the loss of consciousness (modified observer’s assessment of alertness/sedation [MOAA/S] score 1–2). Both groups then received intravenous sufentanil and cisatracurium for intubation. Cellular immune function markers (CD3+, CD4+, CD8+ T and natural killer [NK] cells) were recorded at different time points. Quality of Recovery [QoR]-15 scale scores, hemodynamic parameters, sedation scores (Riker and Ramsay scales), recovery times and adverse events were also recorded.
Compared to Group P, Group R had significantly higher NK, CD3+, and CD4+ cell levels immediately after surgery and at 24 hours postoperatively. Group R showed a significantly lower incidence of intraoperative hypotension, bradycardia, and vasopressor use. Additionally, QoR-15 scores at 24 and 72 hours were higher in Group R. There were no significant differences in Riker or Ramsay scores, extubation time, post-anesthesia care unit stay, or the incidence of postoperative nausea, vomiting, and drowsiness between the 2 groups.
Compared with propofol, remimazolam anesthesia results in better perioperative immune function preservation, reduced intraoperative hypotension and bradycardia, and improved postoperative recovery quality in patients undergoing laparoscopic radical colorectal cancer surgery.
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Keywords | ||
Cellular immune function Colorectal cancer surgery General anesthesia Natural killer cells Postoperative recovery Remimazolam |
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