Effect comparison of minilaparotomy and laparoscopic-assisted right hemicolectomy on immune function of patients with colon cancer / 肿瘤研究与临床

ABSTRACT

Objective To explore the cell-mediated immune function in patients with colon cancer undergoing minilaparotomy or laparoscopic assisted right hemicolectomy. Methods From January 2009 to August 2014, the colon cancer patients receiving right hemicolectomy were retrospectively analyzed. According to the operation mode, the patients were divided into minilaparotomy group and laparoscopic-assisted group. The clinical and pathological data was analyzed. Cell counts of total CD3, CD4, CD8, CD19 as well as NK cells in venous blood samples were compared between 1 day before surgery and postoperative days (POD) 1 and 5. Measurement data with normal distribution was compared using the t test or Q test. Count data was analyzed usingχ2 test or Fisher exact probability. Results There were 408 patients with colon cancer undergoing right hemicolectomy, 26 patients of whom were excluded. The remaining 382 patients were recruited in the research, which were divided into minilaparotomy group (182 cases) and laparoscopic-assisted group (200 cases). There was no significant difference in the age, gender, body mass index, TNM staging, histological type, blood loss, return of bowel function, tumor location, hospital stay and postoperative complications between the two groups (all P> 0.05). The operating time in minilaparotomy group [(131.53 ± 22.57) min] was shorter than that in laparoscopic-assisted group [(167.53 ± 22.04) min], and there was significant difference (t=15.76, P= 0.00). Compared with prior to surgery, cell numbers of CD3, CD4, CD8, CD19 and NK cells were lower on POD 1 and POD 5 (all P0.05). Conclusion The minilaparotomy and laparoscopic-assisted right hemicolectomy have same effect on cellular immune function of patients with colon cancer.