Postoperative intra-abdominal infection increases angiogenesis and tumor recurrence after surgical excision of colon cancer in mice

Background No previous study has compared the risk of surgical site infection (SSI) between intracorporeal anastomosis (IA) and extracorporeal anastomosis (EA) related to intra-abdominal infection in laparoscopic right hemicolectomy. Therefore, this study aimed to compare the risk of SSI in IA and EA in this context. Methods From July 2014 to March 2018, 101 consecutive (median age, 73 years; male, 54) patients underwent laparoscopic right hemicolectomy for colon cancer. The IA and EA groups consisted of 51 and 50 cases, respectively. After either IA or EA, lavage was performed with 100 mL of saline in the area surrounding the anastomosis, and a sample was collected for bacterial culture. The product of the virulence score and dose of bacterial contamination score called the risk of SSI score was evaluated in both groups, and short-term outcomes in both groups were analyzed retrospectively. Results No significant difference was found in patient characteristics between the 2 groups. The frequency of organ/space SSI in the IA group was significantly higher than that in the EA group (7.8% vs 0%, P = .04). The risk of SSI score was significantly higher in the IA group than in the EA group (median, 9 vs 1, P < .01). Conclusions Compared with EA, IA in laparoscopic right hemicolectomy increased organ/space SSI rates, signifying intra-abdominal infection. We strongly recommend prevention of intra-abdominal infection when performing an IA.

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Impact of postoperative intra-abdominal infection on tumor recurrence and survival in hepatocellular carcinoma after curative liver resection.

Journal of Clinical Oncology ◽

10.1200/jco.2014.32.3_suppl.374 ◽

2014 ◽

Vol 32 (3_suppl) ◽

pp. 374-374

Author(s):

Dan-yun Ruan ◽

Yang Li ◽

Ze-Xiao Lin ◽

Dong-Hao Wu ◽

Tian-tian Wang ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Overall Survival ◽

Liver Resection ◽

Confidence Interval ◽

Tumor Recurrence ◽

Multivariate Analyses ◽

Hazard Ratio ◽

Poor Survival ◽

Abdominal Infection ◽

Intra Abdominal Infection

374 Background: Postoperative intra-abdominal infection has been reported contributed to higher tumor recurrence rate and poor survival in cancer patients. The study aims to evaluate the impact of postoperative intra-abdominal infection on recurrence free survival (RFS) and overall survival (OS) in patients undergoing curative liver resection for hepatocellular carcinoma (HCC). Methods: ALL patients underwent liver resection from 2003 to 2010 were identified. The Clavien–Dindo (CD) classification was adopted to classify the complications and patients who died of postoperative complications within 30 days of surgery (grade V) were excluded form the study. Univariate and multivariate analyses were used to assess variables. Results: 215 patients were included, the overall 30-day postoperative complication rate was 36.74% (n=79), 13.95% (n=30) were intra-abdominal infectious complication. Patients with intra-abdominal infection had worse RFS (27.6% vs 50%, p<0.001) and OS (46.7% vs 82.2%, p<0.001) than those without it. In multivariate analyses, postoperative intra-abdominal infection was an independent prognostic factor of tumor recurrence (hazard ratio = 2.183; 95% confidence interval, 1.334-3.573) and overall survival (hazard ratio = 4.990; 95% confidence interval, 2.643-9.420). Hepatitis B surface antigen positive, tumor diameter (>5cm) and Child-Pugh class (B) were other three independent factors associated with poor prognosis. Conclusions: According to the study, postoperative intra-abdominal infection predicts tumor recurrence and poor survival after radical liver resection in HCC patients. These findings may have implications of the potential association between inflammatory response and cancer progression.

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