To investigate the effect of continuous double cannula flushing at constant temperature on infection control in patients with intestinal fistula after colorectal cancer surgery.

Retrospective analysis of 95 cases of postoperative intestinal fistula patients treated with colorectal cancer in our hospital from March 2012 to June 2018. The patients were divided into two groups according to the drainage scheme adopted.The double-cannula group (n=50) was treated with continuous double-cannula flushing at constant temperature, while the conventional group (n=45) was given conventional single-cavity drainage. The SPSS20.0 software package was used for statistical analysis. The postoperative anastomotic stenosis and the incidence of reoperation were performed by χ² test. The amount of drainage fluid, hospitalization time, and various inflammatory response indicators were described as (±s) and compared by t test. P<0.05 represented a statistically significant difference.

The drainage volume and hospitalization time of the patients with double cannula group were significantly lower than those of the conventional group (P<0.05). The descending time of procalcitonin, the decrease of C-reactive protein and the rise time of albumin were significantly lower in the double-cannula group than those in the conventional group (P<0.05). The postoperative anastomotic stenosis (8.0%) was significantly lower in the double-cannula group than that in the conventional group (28.9%), and the reoperation rate (6.0%) was also significantly lower than that in the conventional group (20.0%) (P<0.05), the difference between the two groups was significant.

The use of continuous double-cannula irrigation at constant temperature for the treatment of patients with colorectal cancer after intestinal fistula has a good clinical application effect, which can effectively control infection, promote fistula healing, reduce the chance of reoperation. As such, it is worth further promotion.