Background Long-term clinical data on intestinal Behçet’s disease (BD) are scarce because of the rarity of this disease, and many issues remain unresolved due to the difficulty in performing a well-designed clinical trial or epidemiologic study. We aimed to investigate the long-term clinical outcomes of patients with intestinal BD with a 30-year cohort study at a tertiary hospital in South Korea, a hospital with the largest number of patients with intestinal BD worldwide. Additionally, we aimed to identify factors that could predict various clinical outcomes, including anti-tumor necrosis factor-alpha (anti-TNF-α) agent use, intestinal surgery, hospitalization, and emergency room visits. Methods A cohort of 780 patients with intestinal BD between 1997 and 2021 was investigated to determine the long-term clinical outcomes and prognostic factors at the inflammatory bowel disease Clinic of Severance Hospital, Seoul, Korea. Results During the median follow-up period of 12.7 ± 7.2 years, 5-aminosalicylic acids, corticosteroids, immunomodulators, and anti-tumor necrosis factor-alpha (TNF-α) agents were required in 94.9%, 67.2%, 43.8%, and 14.6% of the patients, respectively. The cumulative rates of anti-TNF-α use were 3.7%, 7.5%, 8.5%, 12.1%, 17.6%, and 24.0%, and that of abdominal surgery were 5.7%, 10.9%, 12.6%, 16.5%, 21.6%, and 28.3%, at 1, 3, 5, 10, 20, and 30 years, respectively, after the initial diagnosis of intestinal BD. The cumulative rates of hospitalization were 11.8%, 21.9%, 27.9%, 38.8%, 54.4%, and 74.8% and that of emergency room visits were 10.0%, 19.8%, 22.7%, 31.6%, 50.0%, and 65.0% at 1, 3, 5, 10, 20, 30 years. Older age at primary diagnosis, previous appendectomy history, higher disease activity index for intestinal Behçet’s disease score, systemic BD, multiple intestinal ulcers, deep intestinal ulcers, higher C-reactive protein, lower hemoglobin, and lower albumin levels were associated with poor prognosis. Married status, higher body mass index, oral ulceration, and arthritis were negatively associated with a poor prognosis. Conclusion The data on the long-term clinical outcomes of intestinal BD and their prognostic factors could guide physicians for adequate patient monitoring and optimizing individualized treatments.
Background Increased prevalence of nonalcoholic fatty liver disease (NAFLD) and inflammatory bowel disease (IBD) has been reported; however, the effects of NAFLD on the outcome of IBD remains unclear. We investigated whether the presence of NAFLD could influence the outcomes of patients with IBD. Methods We recruited 3,356 eligible patients with IBD into our study between November 2005 and November 2020. Hepatic steatosis and fibrosis were diagnosed using hepatic steatosis index (HSI) of ≥30 and fibrosis-4 (FIB-4) of ≥1.45, respectively. Primary outcome was clinical relapse, defined based on the following: IBD-related admission, surgery, or first use of corticosteroids, immunomodulators, or biologics agents for IBD. Results Prevalence of NAFLD in patients with IBD was 16.7%. Patients with hepatic steatosis and advanced fibrosis were older, had a higher body mass index, and were more likely to have diabetes (all p<0.05). Multivariate cox regression analysis revealed that hepatic steatosis was independently associated with an increased risk of relapse in patients with ulcerative colitis (UC) (hazard ratio [HR] 1.697, 95% confidence interval [CI] 1.291-2.230; p<0.001) and Crohn’s disease (CD) (HR 1.536, 95% CI 1.130-2.087; p=0.006). Advanced liver fibrosis was not associated with an increased risk of clinical relapse in patients with UC or CD (all p>0.05). Conclusion Hepatic steatosis was independently associated with increased risks of clinical relapse in patients with UC and CD, whereas fibrotic burden in the liver was not. Future studies should investigate whether the assessment and therapeutic intervention of NAFLD will improve clinical outcomes of patients with IBD.
Background We investigated the real-life effectiveness and safety of vedolizumab maintenance treatment among Korean patients with Crohn’s disease (CD) or ulcerative colitis (UC) who previously failed anti-tumour necrosis factor (anti-TNF) therapy. Methods Adult patients with CD or UC who have previously failed anti-TNF therapy and received vedolizumab were prospectively enrolled from 16 hospitals in Korea. The primary outcome was clinical remission at week 54. Clinical remission was defined as a Crohn’s disease activity index (CDAI) <150 and a partial Mayo score ≤2 with a combined rectal bleeding and stool frequency subscore ≤1. We also analyzed factors associated with clinical remission at week 54. Results Between August 2017 to July 2020, a total of 165 patients (81 with CD and 84 with UC) received vedolizumab therapy, of whom 154 patients (93.3%) (75 with CD and 79 with UC) received vedolizumab maintenance therapy (Table 1). Clinical remission and response rates at week 54 were 22.2% and 24.1% among patients with CD and 41.4% and 45.7% among patients with UC, respectively (Figure 1A and 1B). Among 70 patients with UC with baseline Mayo endoscopic subscore ≥2, endoscopic remission (Mayo endoscopic subscore ≤1) at week 54 was observed in 19 patients (27.1%). Out of 50 patients with CD with ulcers in baseline endoscopy, 2 patients (4%) showed a disappearance of ulcers at week 54 (Figure 1C). In the multivariable analysis, age at baseline (adjusted odds ration [aOR] 1.065, 95% confidence interval [CI] 1.003–1.131, P=0.041) and Mayo endoscopic subscore at baseline (aOR 0.141, 95% CI 0.026–0.746, P=0.021) were significantly associated with clinical remission at week 54 among patients with UC (Table 2). No factors were found to be associated with clinical remission at week 54 among patients with CD. Among patients who experienced one or more adverse events (n=134, 81.2%), serious adverse events occurred in 82 patients (49.7%) (Table 3). Disease exacerbation was the most common adverse events (n=89, 53.9%). Conclusion The real-life effectiveness of vedolizumab maintenance treatment for Korean patients with UC who failed anti-TNF therapy was generally similar with the outcomes reported from the previous Western studies. A substantial proportion of patients with CD experienced a loss of response during the first year of treatment. Less severe disease at baseline was associated with clinical remission at 1 year of vedolizumab therapy among patients with UC.
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