Gut and Liver

The Korean Association for the Study of the Liver (대한간학회)
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Development of a Novel Endoscopic Scoring System to Predict Relapse after Surgery in Intestinal Behçet's Disease

  • Park, Jung Won (Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine) ;
  • Park, Yehyun (Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine) ;
  • Park, Soo Jung (Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine) ;
  • Kim, Tae Il (Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine) ;
  • Kim, Won Ho (Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine) ;
  • Cheon, Jae Hee (Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine)
  • Received : 2017.12.04
  • Accepted : 2018.04.27
  • Published : 2018.11.15
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Abstract

Background/Aims: The cumulative surgery rate and postoperative relapse of intestinal Behçet's disease (BD) have been reported to be high. This study aimed to establish a scoring system based on follow-up endoscopic findings that can predict intestinal BD recurrence after surgery. Methods: Fifty-four patients with intestinal BD who underwent surgery due to bowel complications and underwent follow-up colonoscopy were retrospectively investigated. Their clinical data, including colonoscopic findings, were retrieved. Classification and regression tree analysis was used to develop an appropriate endoscopic classification model that can explain the postsurgical recurrence of intestinal BD most accurately based on the following classification: e0, no lesions; e1, solitary ulcer <20 mm in size; e2, solitary ulcer ${\geq}20mm$ in size; and e3, multiple ulcers regardless of size. Results: Clinical relapse occurred in 37 patients (68.5%). Among 38 patients with colonoscopic recurrence, only 29 patients had clinically relapsed. Multivariate analysis identified higher disease activity index for intestinal BD at colonoscopy (hazard ratio [HR], 1.013; 95% confidence interval [CI], 1.005 to 1.021; p=0.002) and colonoscopic recurrence (HR, 2.829; 95% CI, 1.223 to 6.545; p=0.015) as independent risk factors for clinical relapse of intestinal BD. Endoscopic findings were classified into four groups, and multivariate analysis showed that the endoscopic score was an independent risk factor of clinical relapse (p=0.012). The risk of clinical relapse was higher in the e3 group compared to the e0 group (HR, 6.284; 95% CI, 2.036 to 19.391; p=0.001). Conclusions: This new endoscopic scoring system could predict clinical relapse in patients after surgical resection of intestinal BD.

Keywords

Acknowledgement

Supported by : Korea Health Industry Development Institute (KHIDI), National Research Foundation of Korea, Yonsei University College of Medicine

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