Background: Central venous catheter (CVC) is commonly used in surgery. The purpose of this retrospective study is to investigate whether there is an unnecessary use of CVC in laparoscopic radical rectal cancer.Methods: This is a retrospective review of prospective medical records of patients who underwent laparoscopic radical rectal cancer surgery from January 2015 to May 2019 in our institution. Patients were divided into two groups according to whether CVC was inserted by the anesthesiologist or not, and the perioperative variables of the two groups were compared and analyzed. Patients with CVC insertion were divided into two groups according to their single-lumen or double-lumen, and the perioperative variables of the two groups were compared.Results: Of 344 patients who underwent surgery, 194(56.4%) were without CVC and 150 (43.6%) with CVC. There was no significant difference in operative time, fluid transfusion, blood loss, postoperative parenteral nutrition, and hospital stay (p > 0.05). For patients with CVC, none of the patients underwent central venous pressure monitoring, only 2 (1.33%) patients received a blood transfusion, 11 (7.33%) patients received vasoactive drugs and 3 (2%) patients received postoperative ICU. There was no significant difference in perioperative variables between the single-lumen tube and double-lumen tube groups.Conclusion: For most patients undergoing laparoscopic radical resection of rectal cancer, CVC is unnecessary and a waste of medical resources.

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