• Yuan Li, Jian-An Ren, Ge-Fei Wang, Guo-Sheng Gu, Xiu-Wen Wu, Song Liu, Hua-Jian Ren, Zhi-Wu Hong, and Jie-Shou Li.
• Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, China.
• Chin. Med. J. 2018 Mar 5; 131 (5): 567-573.

BackgroundIntestinal fistula is one of the common complications of Crohn's disease (CD) that might require surgical treatment. The clinical characteristics and outcomes of CD with intestinal fistula are much different from CD alone. This study was to investigate whether the coagulation status of CD is changed by intestinal fistula.MethodsData were retrospectively analyzed for 190 patients with a definitive diagnosis of CD who were registered at the Jinling Hospital between January 2014 and September 2015. Baseline clinical characteristics and laboratory indices of initial admission and 7 days after intestinal fistula resections were collected. Student's t-test and the Wilcoxon rank-sum test were used to compare differences between the two groups.ResultsCompared with CD patients without intestinal fistula, prothrombin time (PT) in patients with intestinal fistula was significantly longer (12.13 ± 1.27 s vs. 13.18 ± 1.51 s, P < 0.001 in overall cohort; 11.56 ± 1.21 s vs. 12.61 ± 0.73 s, P = 0.001 in females; and 12.51 ± 1.17 s vs. 13.37 ± 1.66 s, P = 0.003 in males). Platelet (PLT) count was much lower in intestinal fistula group than in nonintestinal fistula group (262.53 ± 94.36 × 109/L vs. 310.36 ± 131.91 × 109/L, P = 0.009). Multivariate logistic regression showed that intestinal fistula was significantly associated with a prolonged PT (odds ratio [OR] = 1.900, P < 0.001), a reduced amount of PLT (OR = 0.996, P = 0.024), and an increased operation history (OR = 5.408, P < 0.001). Among 65 CD patients receiving intestinal fistula resections, PT was obviously shorter after operation than baseline (12.28 ± 1.16 s vs. 13.02 ± 1.64 s, P = 0.006).ConclusionsIntestinal fistula was significantly associated with impaired coagulation status in patients complicated with CD. Coagulation status could be improved after intestinal fistula resections.

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