Abstract
The effect of glutamine on postoperative complications and postoperative recovery in rectal cancer (RC) patients receiving neoadjuvant therapy (NT) is unclear. This study aimed to investigate the effects of intravenous glutamine supplementation on short-term postoperative outcomes in these patients. This retrospective study included patients with RC who received NT and underwent radical surgery between January 2013 and July 2022 and were either administered glutamine (glutamine group) or not administered glutamine (non-glutamine group). Propensity score matching method was used to analyze and compare postoperative complications and other outcome indicators. A total of 208 patients were reviewed, and 53 were included in each group post matching. While no significant difference in the time to first solid food intake between the two groups was observed, the glutamine group had a significantly reduced incidence of postoperative complications, shorter length of hospital stay, and shorter time to first defecation, first exhaust, and first fluid diet intake than those of the control group. Moreover, glutamine alleviated the reduction in albumin and prealbumin levels. Perioperative parenteral glutamine supplementation effectively reduces the incidence of postoperative complications, promotes postoperative recovery, and improves albumin levels in patients undergoing RC surgery and receiving NT.
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