H. Kiyohara, H. Yamazaki, Kei Moriya, Naohiko Akimoto, S. Kawai, Kento Takenaka, Tomohiro Fukuda, Keiichi Tominaga, Junji Umeno, S. Shinzaki, Yusuke Honzawa, Tomohisa Takagi, Hitoshi Ichikawa, Toshiyuki Endo, R. Ozaki, Akira Andoh, K. Matsuoka, Toshifumi Hibi, Taku Kobayashi
{"title":"White blood cell counts and future relapse in ulcerative colitis under low-dose thiopurine treatment in real-world practice: a three year Japanese multi-center retrospective cohort study.","authors":"H. Kiyohara, H. Yamazaki, Kei Moriya, Naohiko Akimoto, S. Kawai, Kento Takenaka, Tomohiro Fukuda, Keiichi Tominaga, Junji Umeno, S. Shinzaki, Yusuke Honzawa, Tomohisa Takagi, Hitoshi Ichikawa, Toshiyuki Endo, R. Ozaki, Akira Andoh, K. Matsuoka, Toshifumi Hibi, Taku Kobayashi","doi":"10.1159/000535889","DOIUrl":"https://doi.org/10.1159/000535889","url":null,"abstract":"Introduction Whether white blood cell (WBC) counts are predictors for the effectiveness of thiopurine treatment in ulcerative colitis (UC) has been inconclusive in previous studies with small sample sizes. We investigated the association between WBC counts and future relapses in UC patients in a large-scale multi-center study. Methods This retrospective cohort study enrolled a total of 723 UC patients in remission from 33 hospitals and followed up for three years. Relapse was defined as a need for treatment intensification. The risk of relapse was compared among patients with the baseline WBC counts<3000/µL (N=31), 3000–4000/µL (N=167), 4000–5000/µL (N=241), and ≥5000/µL (N=284) using a Cox regression model analysis. Moreover, exploratory analyses were conducted to identify other factors predicting relapse. Results During a median follow-up period of 1095 (interquartile range, 1032–1119) days, relapse occurred in 17.2% (125/723). In a crude analysis, WBC counts were not associated with relapse; hazard ratios (HRs) [95% confidence interval (CI)] were 1.50 [0.74–3.06], 1.02 [0.66–1.59] and 0.67 [0.43–1.05] in WBC<3000/µL, 3000–4000/µL, and 4000–5000/µL groups, respectively (WBC≥5000/µL group, as reference). Multivariable-adjusted analyses showed similar results; HRs [95% CI] were 1.21 [0.59–2.49], 1.08 [0.69–1.69], and 0.69 [0.44–1.07], in <3000/µL, 3000–4000/µL, and 4000–5000/µL group, respectively. In the exploratory analyses, thiopurine use <1 year and a mean corpuscular volume <90 fL were predictors for relapse. Discussion/Conclusion WBC counts were not predictors for future relapses in patients with UC treated with thiopurine as a maintenance therapy.","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"27 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139150052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Efficacy of Combination Therapy with Ustekinumab and Budesonide for Crohn's Disease: A Randomized Controlled Trial","authors":"Rintaro Moroi, Kasumi Hishinuma, Yumi Sugawara, Kotaro Nochioka, Yusuke Shimoyama, Takeo Naito, Hisashi Shiga, Yoichi Kakuta, Yoshitaka Kinouchi, Ichiro Tsuji, Atsushi Masamune","doi":"10.1159/000535070","DOIUrl":"https://doi.org/10.1159/000535070","url":null,"abstract":"Introduction: Limited data exist on the efficacy of combination therapy with ustekinumab and budesonide in patients with Crohn’s disease. Our objective was to compare the clinical outcomes of ustekinumab and budesonide combination therapy with those of ustekinumab monotherapy. Methods: In this Phase 2 single-center, double-blind, randomized controlled trial, we assigned 19 patients with Crohn’s disease with a Crohn’s disease activity index (CDAI) equal to or greater than 220 and less than 450 in a 1:1 ratio to receive ustekinumab and budesonide or ustekinumab for 32 weeks. The primary endpoint was the clinical remission rate at 8 weeks. The secondary endpoints were the clinical remission rate at 32 weeks and mucosal healing rates at 8 and 32 weeks. Results: Of 19 patients, the mean age was 37.8 years, and 42.1% were women (CDAI ≥220 and <450). There was no difference between combination therapy and ustekinumab monotherapy in terms of clinical remission rates (50.0% vs. 30.0%, P=0.39 at 8 weeks and 37.5% vs. 20.0%, P=0.41) and mucosal healing rates (75.0% vs. 90.0%, P= 0.40 and 37.5% vs. 60.0%, P=0.34 at 8 and 32 weeks, respectively). The most common adverse event was an exacerbation of Crohn’s. There were no differences in safety profiles between the two groups. Conclusions: Our study showed no difference between ustekinumab monotherapy and ustekinumab and budesonide combination therapy in terms of the induction and maintenance of remission (trial registration number: jRCTs021200013).","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"76 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135092977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lovisa Röjler, Amiko M. Uchida, John J. Garber, Olof Stephansson, Jonas Söderling, Bjorn Roelstraete, Jonas F. Ludvigsson
{"title":"Pregnancy outcomes in females with eosinophilic esophagitis – a nationwide population-based study","authors":"Lovisa Röjler, Amiko M. Uchida, John J. Garber, Olof Stephansson, Jonas Söderling, Bjorn Roelstraete, Jonas F. Ludvigsson","doi":"10.1159/000534412","DOIUrl":"https://doi.org/10.1159/000534412","url":null,"abstract":"<b><i>Introduction:</i></b> Eosinophilic esophagitis (EoE) is a chronic, allergic inflammatory disease of the esophagus. It has a peak incidence in the 2nd and 3rd decades of life. Despite this, little is known about pregnancy outcomes in patients with EoE. <b><i>Methods:</i></b> Using a validated histopathologic and nationwide population-based cohort for the diagnosis of EoE, we examined maternal and fetal outcomes, with preterm birth as the primary outcome, in females with EoE compared to matched controls. Odds ratios (ORs) were calculated using logistic regression. <b><i>Results:</i></b> Between 1992 and 2016, we identified 19 females with EoE who gave birth to 23 children (reference births: <i>n</i> = 115). There was 1 (4.3%) preterm birth in the EoE cohort versus 8 (7.0%) in the reference cohort (OR = 0.60; 95% CI = 0.07–5.14). Secondary fetal outcomes included stillbirth, neonatal death, small for gestational age, low birth weight (LBW), and low Apgar score. Of these, LBW (&lt;2,500 g) in patients with EoE compared to controls correlated to an OR of 12.42 (95% CI = 1.26–122.42); however, this finding was based on very low numbers. The remaining fetal outcomes were not significantly different between females with EoE and controls. Secondary pregnancy and maternal outcomes including induction of labor, instrumental delivery, gestational diabetes, or pre-eclampsia were not significantly different between patients with EoE and controls. <b><i>Discussion/Conclusion:</i></b> Overall in this nationwide cohort study, we did not find increased association of preterm birth in patients with EoE.","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"468 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135546527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Novel utility of leucine-rich alpha 2-glycoprotein as a biomarker in ulcerative colitis: a predictor of endoscopic remission independent of symptoms","authors":"Tomoyuki Hayashi, Kazuya Kitamura, Masaaki Usami, Masaki Miyazawa, Masaki Nishitani, Akihiro Dejima, Makoto Yamamoto, Shotaro Kawase, Masaya Funaki, Noriaki Orita, Hidetoshi Nakagawa, Koki Morita, Noriho Iida, Akihiro Seki, Kouki Nio, Hidenori Kido, Hideo Takayama, Yuta Takeuchi, Shinya Yamada, Hajime Takatori, Mari Shimada, Hiroto Saito, Daisuke Yamamoto, Tadashi Toyama, Taro Yamashita","doi":"10.1159/000534001","DOIUrl":"https://doi.org/10.1159/000534001","url":null,"abstract":"Introduction: Leucine-rich alpha-2-glycoprotein (LRG) is a potential biomarker for disease activity and reflects mucosal healing in patients with ulcerative colitis (UC). However, only a few studies have described a detailed sensitivity analysis of LRG in predicting mucosal healing in patients. This study aimed to evaluate the association between LRG and the endoscopic activity of UC and its predictability for mucosal healing and explore the utility and clinical application of LRG. Methods: The diagnostic accuracy of biomarkers, including LRG, in predicting the endoscopic activity of UC was evaluated. All consecutive patients who underwent total colonoscopy between April 2021 and September 2022 were included. The Mayo endoscopic subscore (MES) was used for assessing endoscopic activity. Furthermore, endoscopic remission was defined as an MES of ≤1. Clinical activity was evaluated based on stool frequency and bloody stool. Receiver operating characteristic curve analysis and binary logistic regression were performed to assess the diagnostic accuracy of the biomarkers. We evaluated LRG trends and treatment response in patients with MES≥2 who underwent induction therapy. Results: This study comprised 214 patients. The proportions of endoscopically- and clinically active patients were 33.6% and 49.1%, respectively. LRG had an area under the curve (AUC) of 0.856, with a higher diagnostic accuracy than other biomarkers, such as C-reactive protein, leukocyte, neutrophil, platelet, and albumin. The cutoff value for LRG was 15.6 μg/mL (sensitivity, 72.2%; specificity, 86.6%). Using the MES, patients with higher scores had higher LRG levels than those with lower scores. The cutoff value, AUC, sensitivity, and specificity varied with a higher AUC for left-sided colitis and pancolitis than for proctitis. Logistic regression analysis showed that LRG was an independent predictor of endoscopic remission using multivariate analysis, even with the factor of clinical activity. The change ratio of LRG pre- and post-treatment was statistically significant in the higher LRG group. Discussion/Conclusion: LRG reflected endoscopic activity independently, regardless of clinical symptoms. An LRG below the cutoff value could indicate a significantly low probability of endoscopic activity in asymptomatic patients, and follow-up endoscopy (not for cancer screening) may be unnecessary. Furthermore, a higher LRG level might be more useful as an indicator of treatment efficacy.","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135546528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Real-World Data on Short-Term and Long-Term Treatment Results of Ustekinumab in Patients with Steroid-Resistant/Dependent Ulcerative Colitis","authors":"Yoriaki Komeda, George Tribonias, Masashi Kono, Kohei Handa, Shunsuke Omoto, Mamoru Takenaka, Satoru Hagiwara, Naoko Tsuji, Naoshi Nishida, Hiroshi Kashida, Masatoshi Kudo","doi":"10.1159/000534457","DOIUrl":"https://doi.org/10.1159/000534457","url":null,"abstract":"Introduction: Ustekinumab is an IgG1 kappa monoclonal antibody directed against the common p40 subunit of interleukin-12 and interleukin-23, which activate Th1- and Th17-mediated immune responses, respectively. It has proven efficacy for the treatment of moderate to severe ulcerative colitis (UC) in the UNIFI Phase III clinical trial; however, data on its efficacy in the real world is limited. In this study, we aimed to assess the real-world efficacy of ustekinumab. Methods: This observational study included 30 patients with UC who received ustekinumab from April 2020 to April 2022. We examined demographic information, disease type and activity (Mayo score, partial Mayo score [PMS]), use of biologics, concomitant use of predonisolone (PSL), 8-week ustekinumab clinical response rate, remission induction rate, 44- and 152-week remission maintenance rate, continuation rate, and 44-week steroid-free remission rate. The primary outcomes were the short- and long-term efficacy of ustekinumab. Results: Included patients (53% women; mean age: 41.2 years [16–80 years]) had an average disease duration of 86 weeks. Mayo’s score (median) was 7.4 and the PMS was 5.4. Two (7%), 24 (80%), and four (13%) patients had a Mayo endoscopic sub-score (MES) of MES1, MES2, and MES3, respectively. The median serum CRP was 1.0 mg/dL. Five patients had no history of biotherapy (naive), while 8 and 17 had a history of one and two or more biologic agents, respectively. Eight patients were PSL-resistant and 22 were PSL-dependent. The 8-week clinical response rate was 73%, and the clinical remission induction rate was 70%. The remission maintenance rates at 44 and 152 weeks were 67% and 63%, respectively. The ustekinumab retention rate was 67% (86-week mean follow-up period). Regarding biologic failure cases, the clinical response rate in the failure group with up to one biologic agent (including naive cases) was 84.6%, which was higher than the 58.0% rate in the failure group with two or more biologic agents (p=0.06). Steroid-free remission rates at 44 and 152 weeks were 63% each. In the logistic regression analysis parameters for discontinuation of ustekinumab, only PMS remained significant after multivariate analysis (p=0.018). Conclusion: Our study showed short-term and long-term ustekinumab effectiveness, especially with comparative low disease activity.","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"468 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135546531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matthew D. Coates, Shannon Dalessio, August Stuart, Vonn Walter, Andrew Tinsley, Kofi Clarke, Emmanuelle D. Williams
{"title":"Lifestyle Factors and Silent Inflammatory Bowel Disease","authors":"Matthew D. Coates, Shannon Dalessio, August Stuart, Vonn Walter, Andrew Tinsley, Kofi Clarke, Emmanuelle D. Williams","doi":"10.1159/000534413","DOIUrl":"https://doi.org/10.1159/000534413","url":null,"abstract":"Introduction: Hypoalgesic, or “silent”, inflammatory bowel disease (IBD) is a poorly understood condition that has been associated with poor clinical outcomes. There is evidence that lifestyle factors, including diet, exercise and substance use can influence inflammatory activity and symptoms in IBD. It is unclear, though, whether these issues impact pain experience in IBD. We performed this study to evaluate the potential relationship between several key lifestyle factors and silent IBD. Methods: We performed a retrospective analysis using an IBD natural history registry based in a single tertiary care referral center. We compared demographic and clinical features in two patient cohorts defined using data from simultaneous pain surveys and ileocolonoscopy: a) active IBD without pain (silent IBD), and b) active IBD with pain. We also evaluated the relative incidence of characteristics related to diet, exercise, sexual activity and substance abuse. Results: One hundred eighty IBD patients had active disease and 69 (38.3%) exhibited silent IBD. Silent IBD patients exhibited incidences of disease type, location, and severity as pain-perceiving IBD patients. Silent IBD patients were more likely to be male and less likely to exhibit anxiety and/or depression or to use cannabis, analgesic medication or corticosteroids. There were no significant differences in dietary, exercise-related or sexual activities between silent and pain-perceiving IBD patients. Conclusions: Silent IBD was associated with reduced incidence of substance and analgesic medication use. No relationships were found between silent IBD and diet, exercise or sexual activity, though specific elements of each require further dedicated study.","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135789880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Magdalena Lüthy, Samuel A. Käser, Carolin Wagener, René Fahrner
{"title":"Spirochetosis Mimicking Acute Appendicitis: Clinical Report and Review of the Literature","authors":"Magdalena Lüthy, Samuel A. Käser, Carolin Wagener, René Fahrner","doi":"10.1159/000531961","DOIUrl":"https://doi.org/10.1159/000531961","url":null,"abstract":"<b><i>Introduction:</i></b> Intestinal spirochetosis is sometimes found by chance in histological specimen of routine endoscopies. There are only a few cases described in the literature that spirochetosis of the appendix was mimicking acute appendicitis. We present a case of pseudoappendicitis with the histological finding of spirochetes and review the current literature. <b><i>Case Presentation:</i></b> A 72-year-old woman presented with pain of the lower right abdomen and previous systemic corticoid therapy. In clinical examination, there was a tenderness and pain in the right lower quadrant, and inflammation values were elevated. An abdominal computed tomography scan revealed no obvious inflammation of the appendix. A diagnostic laparoscopy was performed and revealed a macroscopically uninflamed appendix which was removed. Histology revealed spirochetosis of the appendix but no typical signs of appendicitis. The patient was treated with antibiotics for 5 days and was discharged without abdominal pain. In a clinical control 6 weeks later, the abdominal pain had disappeared and the patient was in good clinical condition. <b><i>Discussion:</i></b> Intestinal spirochetosis is randomly found in histological specimen during routine endoscopies, even in asymptomatic patients. There are only a few cases described with spirochetosis of the appendix causing pain and mimicking appendicitis; hence, this entity is an important differential diagnosis of pain in the right lower quadrant of the abdomen.","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136239875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effectiveness and Factors Associated with Response to Golimumab in Japanese Patients with Ulcerative Colitis in Real Clinical Practice: The Phoenix Study","authors":"Daisuke Hirayama, Satoshi Motoya, Toshifumi Ashida, Katsuyoshi Ando, Mikihiro Fujiya, Takahiro Ito, Shigeru Furukawa, Atsuo Maemoto, Takehiko Katsurada, Shiro Hinotsu, Noriko Sato, Naomi Mizuno, Yoshiko Ikawa, Hiroshi Nakase","doi":"10.1159/000533871","DOIUrl":"https://doi.org/10.1159/000533871","url":null,"abstract":"<b><i>Introduction:</i></b> There have been limited reports on the clinical efficacy of golimumab (GLM) in Japanese patients with ulcerative colitis (UC) in real clinical practice. This study aimed to explore the real-life effectiveness and factors associated with response to GLM in Japanese patients with UC. <b><i>Methods:</i></b> This observational, retrospective, multicenter study was conducted in hospitals with expertise in inflammatory bowel disease treatment. Sixty-three patients treated with GLM and active UC were included in the analysis. Clinical remission (CR) (partial Mayo (pMayo) score ≤2) in the induction and maintenance phases after GLM treatment and associated factors were evaluated. <b><i>Results:</i></b> The proportion of patients achieving CR in the induction and maintenance phases was 41.3% (26/63) and 46.0% (29/63, the last observation carried forward method was used for patients who discontinued treatment for reasons other than inadequate response), respectively. The median pMayo score was 5 (interquartile range (IQR): 4–6) at baseline, 3 (IQR: 1–5) in the induction phase, and 1 (IQR: 0–3) in the maintenance phase. Hemoglobin, platelet, and C-reactive protein levels changed, consistent with the pMayo score. Multivariate logistic analysis revealed that biologic-naive status was an independent factor associated with CR in the induction (<i>p</i> = 0.0200) and maintenance (<i>p</i> = 0.0459) phases, and a disease duration of &gt;60 months until GLM initiation was associated with CR in the induction phase (<i>p</i> = 0.0427). <b><i>Conclusions:</i></b> The effectiveness of GLM in daily clinical practice has been confirmed in Japanese patients with active UC. Biologic-naive patients responded more to GLM in the induction and maintenance phases, and patients with disease duration of &gt;60 months until initiation of GLM were more responsive in the induction phase.","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136034947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Detection Rates of Non-Cavitary Epithelioid Cell Granuloma by Gastrointestinal Biopsy in Patients with Treatment-Naïve Crohn’s Disease","authors":"Katsuya Endo, Yoko Kawakami, Yuki Yoshino, Shiho Kondo, Daisuke Fukushi, Atsuko Takasu, Takayuki Kogure, Morihisa Hirota, Kazuhiro Murakami, Kennichi Satoh","doi":"10.1159/000533479","DOIUrl":"https://doi.org/10.1159/000533479","url":null,"abstract":"<b><i>Introduction:</i></b> Detecting non-cavitary epithelioid cell granuloma by gastrointestinal biopsy is important in the initial diagnosis of Crohn’s disease (CD). In the present study, we aimed to determine the rate of granuloma detection by gastrointestinal biopsy according to the number of biopsies performed. <b><i>Methods:</i></b> The present study included patients newly diagnosed with CD at our hospital between April 2017 and March 2023. During endoscopic examinations, biopsy specimens were taken from affected lesions. Initially, one section per biopsy was examined to detect granuloma. In cases where no granulomas were detected, step sections were additionally prepared and examined. The rate of granuloma detection by gastrointestinal biopsy was retrospectively examined. <b><i>Results:</i></b> A total of 30 patients with a new diagnosis of CD were included in this study. In total, 284 gastrointestinal biopsies were performed in 29 cases. The rate of granuloma detection by gastrointestinal biopsy per case was 58.6% (17 out of 29 cases). The rate of granuloma detection by gastrointestinal biopsy per biopsy was 6.0% (17 out of 284 biopsies) on initial histological examination and 11.6% (33 out of 284 biopsies) following examination of step sections. The rate of granuloma detection was significantly improved by performing histological examination of step sections compared with initial examinations (<i>p</i> &lt; 0.05). <b><i>Conclusion:</i></b> The rate of granuloma detection per biopsy was 11.6%, even after histological examination of step sections. These results indicate that performing multiple intestinal biopsies and assessing for the presence of granuloma using multiple section examinations are required in the initial diagnosis of CD.","PeriodicalId":13605,"journal":{"name":"Inflammatory Intestinal Diseases","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135971374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}