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Stute M, Kreysing M, Zorn M, Michl P, Gauss A. Serum Amyloid A as a Potential Biomarker in Inflammatory Bowel Diseases, Especially in Patients with Low C-Reactive Protein. Int J Mol Sci 2024; 25:1177. [PMID: 38256249 PMCID: PMC10816523 DOI: 10.3390/ijms25021177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
The acute phase protein Serum Amyloid A (SAA) is synthesised by the liver in response to inflammatory stimuli. Previous studies have revealed that SAA may be a better biomarker of disease activity in inflammatory bowel disease (IBD) compared to C-reactive protein (CRP). This retrospective monocentric study evaluated whether SAA correlates with biomarkers like faecal calprotectin (FC), CRP, the Neutrophil to Lymphocyte ratio (NLR), the platelet count and clinical disease activity of IBD patients. Serum samples from the IBD outpatient clinic of the University Hospital Heidelberg were analysed for SAA concentrations if an FC concentration measurement was available from ±14 days to collection of the serum sample. Three hundred and six serum samples from 265 patients (166 with Crohn's disease, 91 with ulcerative colitis and 8 with IBD unclassified) met the inclusion criteria. There was a significant positive correlation between SAA and FC, CRP, NLR, platelet count and the Simple Clinical Colitis Activity Index (SCCAI). The cut-off for SAA serum concentration at 4.55 mg/L achieved a sensitivity of 57.5% and a specificity of 69.7% for the detection of active inflammation in IBD. SAA may be used as an additional biomarker in the disease monitoring strategy of IBD patients, especially in patients with low CRP concentrations.
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Affiliation(s)
- Marie Stute
- Department of Gastroenterology and Hepatology, Heidelberg University, University Hospital, INF 410, 69120 Heidelberg, Germany; (M.S.); (M.K.); (P.M.)
| | - Martin Kreysing
- Department of Gastroenterology and Hepatology, Heidelberg University, University Hospital, INF 410, 69120 Heidelberg, Germany; (M.S.); (M.K.); (P.M.)
| | - Markus Zorn
- Central Laboratory of University Hospital Heidelberg, Department of Endocrinology and Metabolism, University Hospital Heidelberg, INF 671, 69120 Heidelberg, Germany;
| | - Patrick Michl
- Department of Gastroenterology and Hepatology, Heidelberg University, University Hospital, INF 410, 69120 Heidelberg, Germany; (M.S.); (M.K.); (P.M.)
| | - Annika Gauss
- Department of Gastroenterology and Hepatology, Heidelberg University, University Hospital, INF 410, 69120 Heidelberg, Germany; (M.S.); (M.K.); (P.M.)
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Lin H, Bai Z, Wu Q, Chu G, Zhang Y, Guo X, Qi X. Inflammatory Indexes for Assessing the Severity and Disease Progression of Ulcerative Colitis: A Single-Center Retrospective Study. Front Public Health 2022; 10:851295. [PMID: 35359771 PMCID: PMC8963422 DOI: 10.3389/fpubh.2022.851295] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 02/07/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Active and severe ulcerative colitis (UC) and non-response to 5-aminosalicylic acid (5-ASA) are related to poor outcomes and should be accurately identified. Several integrated inflammatory indexes are potentially useful to assess the disease severity in patients with acute or critical diseases but are underexplored in patients with UC. METHODS Patients with UC consecutively admitted to our hospital between January 2015 and December 2020 were retrospectively grouped according to the activity and severity of UC and response to 5-ASA. The neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), systemic immune-inflammation index (SII), neutrophil-to-platelet ratio (NPR), platelet-to-albumin ratio (PAR), C-reactive protein-to-albumin ratio (CAR), and C-reactive protein-to-lymphocyte ratio (CLR) were calculated. The areas under receiver operating characteristic curves (AUC) were calculated. RESULTS Overall, 187 patients with UC were included, of whom 151 were active, 55 were severe, and 14 were unresponsive to 5-ASA. The active UC group had significantly higher NLR, PLR, SII, and PAR levels. SII had the greatest predictive accuracy for active UC, followed by PLR, PAR, and NLR (AUC = 0.647, 0.641, 0.634, and 0.626). The severe UC group had significantly higher NLR, PLR, SII, PAR, CAR, and CLR levels. CLR had the greatest predictive accuracy for severe UC, followed by CAR, PLR, SII, NLR, and PAR (AUC = 0.732, 0.714, 0.693, 0.669, 0.646, and 0.63). The non-response to the 5-ASA group had significantly higher CAR and CLR levels. CAR had a greater predictive accuracy for non-response to 5-ASA than CLR (AUC = 0.781 and 0.759). CONCLUSION SII, CLR, and CAR may be useful for assessing the severity and progression of UC, but remain not optimal.
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Affiliation(s)
- Hanyang Lin
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Postgraduate College, China Medical University, Shenyang, China
| | - Zhaohui Bai
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Postgraduate College, Shenyang Pharmaceutical University, Shenyang, China
| | - Qiong Wu
- Department of Thoracic Surgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Guiyang Chu
- Information Section of Medical Security Center, General Hospital of Northern Theater Command, Shenyang, China
| | - Yongguo Zhang
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaozhong Guo
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Xiaozhong Guo
| | - Xingshun Qi
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
- Postgraduate College, China Medical University, Shenyang, China
- Postgraduate College, Shenyang Pharmaceutical University, Shenyang, China
- *Correspondence: Xingshun Qi
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Halligan S, Boone D, Archer L, Ahmad T, Bloom S, Rodriguez-Justo M, Taylor SA, Mallett S. Prognostic biomarkers to identify patients likely to develop severe Crohn's disease: a systematic review. Health Technol Assess 2021; 25:1-66. [PMID: 34225839 DOI: 10.3310/hta25450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Identification of biomarkers that predict severe Crohn's disease is an urgent unmet research need, but existing research is piecemeal and haphazard. OBJECTIVE To identify biomarkers that are potentially able to predict the development of subsequent severe Crohn's disease. DESIGN This was a prognostic systematic review with meta-analysis reserved for those potential predictors with sufficient existing research (defined as five or more primary studies). DATA SOURCES PubMed and EMBASE searched from inception to 1 January 2016, updated to 1 January 2018. REVIEW METHODS Eligible studies were studies that compared biomarkers in patients who did or did not subsequently develop severe Crohn's disease. We excluded biomarkers that had insufficient research evidence. A clinician and two statisticians independently extracted data relating to predictors, severe disease definitions, event numbers and outcomes, including odds/hazard ratios. We assessed risk of bias. We searched for associations with subsequent severe disease rather than precise estimates of strength. A random-effects meta-analysis was performed separately for odds ratios. RESULTS In total, 29,950 abstracts yielded just 71 individual studies, reporting 56 non-overlapping cohorts. Five clinical biomarkers (Montreal behaviour, age, disease duration, disease location and smoking), two serological biomarkers (anti-Saccharomyces cerevisiae antibodies and anti-flagellin antibodies) and one genetic biomarker (nucleotide-binding oligomerisation domain-containing protein 2) displayed statistically significant prognostic potential. Overall, the strongest association with subsequent severe disease was identified for Montreal B2 and B3 categories (odds ratio 4.09 and 6.25, respectively). LIMITATIONS Definitions of severe disease varied widely, and some studies confounded diagnosis and prognosis. Risk of bias was rated as 'high' in 92% of studies overall. Some biomarkers that are used regularly in daily practice, for example C-reactive protein, were studied too infrequently for meta-analysis. CONCLUSIONS Research for individual biomarkers to predict severe Crohn's disease is scant, heterogeneous and at a high risk of bias. Despite a large amount of potential research, we encountered relatively few biomarkers with data sufficient for meta-analysis, identifying only eight biomarkers with potential predictive capability. FUTURE WORK We will use existing data sets to develop and then validate a predictive model based on the potential predictors identified by this systematic review. Contingent on the outcome of that research, a prospective external validation may prove clinically desirable. STUDY REGISTRATION This study is registered as PROSPERO CRD42016029363. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 25, No. 45. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Steve Halligan
- Centre for Medical Imaging, University College London, London, UK
| | - Darren Boone
- Centre for Medical Imaging, University College London, London, UK
| | - Lucinda Archer
- Centre for Prognosis Research, School of Primary, Community and Social Care, Keele University, Keele, UK
| | - Tariq Ahmad
- Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Stuart Bloom
- Department of Gastroenterology, University College Hospital, London, UK
| | | | - Stuart A Taylor
- Centre for Medical Imaging, University College London, London, UK
| | - Sue Mallett
- Centre for Medical Imaging, University College London, London, UK
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Denegri A, Boriani G. High Sensitivity C-reactive Protein (hsCRP) and its Implications in Cardiovascular Outcomes. Curr Pharm Des 2021; 27:263-275. [PMID: 32679014 DOI: 10.2174/1381612826666200717090334] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 05/20/2020] [Indexed: 11/22/2022]
Abstract
Atherosclerosis and its fearsome complications represent the first cause of morbidity and mortality worldwide. Over the last two decades, several pieces of evidence have been accumulated, suggesting a central role of inflammation in atheroma development. High sensitivity C-reactive protein (hsCRP) is a well-established marker of cardiovascular (CV) disease; high levels of hsCRP have been associated with adverse CV outcome after acute coronary syndrome (ACS) and, despite some controversy, an active role for hsCRP in initiation and development of the atherosclerotic plaque has been also proposed. Randomized clinical trials focusing on hsCRP have been crucial in elucidating the anti-inflammatory effects of statin therapy. Thus, hsCRP has been progressively considered a real CV risk factor likewise to low-density lipoprotein cholesterol (LDL-C), expanding the concept of residual CV inflammatory risk. Subsequent research has been designed to investigate potential new targets of atherothrombotic protection. Despite the fact that the clinical usefulness of hsCRP is widely recognized, hsCRP may not represent the ideal target of specific anti-inflammatory therapies. Clinical investigations, therefore, have also focused on other inflammatory mediators, restricting hsCRP to an indicator rather than a therapeutic target. The aim of the present review is to provide an illustrative overview of the current knowledge of atherosclerosis and inflammation, highlighting the most representative clinical studies of lipid-lowering and antiinflammatory therapies focused on hsCRP in CV diseases.
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Affiliation(s)
- Andrea Denegri
- Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria di Modena, Largo del Pozzo, 71, 41125, Modena, Italy
| | - Giuseppe Boriani
- Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria di Modena, Largo del Pozzo, 71, 41125, Modena, Italy
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Lin SN, Zheng DP, Qiu Y, Zhang SH, He Y, Chen BL, Zeng ZR, Mao R, Chen MH. Classifying Crohn's disease into colon-involving versus non-colon-involving groups is a better predictor of clinical outcomes than the Montreal classification. Therap Adv Gastroenterol 2020; 13:1756284820968732. [PMID: 33329758 PMCID: PMC7720347 DOI: 10.1177/1756284820968732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 10/01/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND A suitable disease classification is essential for individualized therapy in patients with Crohn's disease (CD). Although a potential mechanistic classification of colon-involving and non-colon-involving disease was suggested by recent genetic and microbiota studies, the clinical implication has seldom been investigated. We aimed to explore the association of this colonic-based classification with clinical outcomes in patients with CD compared with the Montreal classification. METHODS This was a retrospective study of CD patients from a tertiary referral center. Patients were categorized into colon-involving and non-colon-involving disease, and according to the Montreal classification. Clinico-demographic data, medications, and surgeries were compared between the two classifications. The primary outcome was the need for major abdominal surgery. RESULTS Of 934 patients, those with colonic involvement had an earlier median (interquartile range) age of onset [23.0 (17.0-30.0) versus 26.0 (19.0-35.0) years, p = 0.001], higher frequency of perianal lesions (31.2% versus 14.5%, p < 0.001) and extraintestinal manifestations (21.8% versus 14.5%, p = 0.010), but lower frequency of stricture (B2) (16.3% versus 24.0%, p = 0.005), than those with non-colon-involving disease. Colon-involving disease was a protective factor against major abdominal surgery [hazard ratio, 0.689; 95% confidence interval (CI), 0.481-0.985; p = 0.041]. However, patients with colon-involving CD were more prone to steroids [odds ratio (OR), 1.793; 95% CI, 1.206-2.666; p = 0.004] and azathioprine/6-mercaptopurine (AZA/6-MP) treatment (OR, 1.732; 95% CI, 1.103-2.719; p = 0.017) than were patients with non-colon-involving disease. The Montreal classification was not predictive of surgery or steroids and AZA/6-MP treatment. CONCLUSION This study supports the rationale for disease classification based on the involvement of colon. This new classification of CD is a better predictor of clinical outcomes than the Montreal classification.
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Affiliation(s)
- Si-Nan Lin
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Dan-Ping Zheng
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Yun Qiu
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Sheng-Hong Zhang
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Yao He
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Bai-Li Chen
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Zhi-Rong Zeng
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Ren Mao
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan 2nd Road, Guangzhou, Guangdong, P.R. China
| | - Min-Hu Chen
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan 2nd Road, Guangzhou, P.R. China
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Abstract
Crohn's disease is an inflammatory bowel disease that is characterized by chronic inflammation of any part of the gastrointestinal tract, has a progressive and destructive course and is increasing in incidence worldwide. Several factors have been implicated in the cause of Crohn's disease, including a dysregulated immune system, an altered microbiota, genetic susceptibility and environmental factors, but the cause of the disease remains unknown. The onset of the disease at a young age in most cases necessitates prompt but long-term treatment to prevent disease flares and disease progression with intestinal complications. Thus, earlier, more aggressive treatment with biologic therapies or novel small molecules could profoundly change the natural history of the disease and decrease complications and the need for hospitalization and surgery. Although less invasive biomarkers are in development, diagnosis still relies on endoscopy and histological assessment of biopsy specimens. Crohn's disease is a complex disease, and treatment should be personalized to address the underlying pathogenetic mechanism. In the future, disease management might rely on severity scores that incorporate prognostic factors, bowel damage assessment and non-invasive close monitoring of disease activity to reduce the severity of complications.
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Abstract
BACKGROUND Previous studies suggest that Crohn's disease (CD) with both small bowel and colon involvement is more serious than colonic CD. However, clinical features of isolated small-bowel CD have not been fully investigated. METHODS In this retrospective case-control study, 89 patients were divided into two groups according to capsule endoscopy, ileocolonoscopy, and enhanced computed tomography results. The case group was isolated small-bowel CD (n = 50) and the control group was CD with both small bowel and colon involvement (n = 39). We collected data of the patients and analyze it. RESULTS In univariate analysis, isolated small-bowel CD group had higher percentage of stricture, Lewis score, platelet, plateletcrit and lower Harvey-Bradshaw index, high-sensitivity C-reactive protein, and erythrocyte sedimentation rate. In multivariable analysis, it had lower Harvey-Bradshaw index (p = 0.000), which meaned relatively mild symptoms. However, it had higher Lewis score (p = 0.007), which meaned more serious small-bowel inflammation. The Kaplan-Meier survival curve also suggested that isolated small-bowel CD patients were more likely to accept partial small intestinal resection surgery (p = 0.029). CONCLUSIONS Isolated small-bowel CD is easily overlooked for milder clinical symptoms and relatively limited lessions, but severe small-bowel histological injury results in owing worse clinical outcomes. Clinicians should pay more attention to the isolated small-bowel CD and take aggressive intervention during therapy.
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Lee JH, Park YE, Seo N, Lee HJ, Park SJ, Kim TI, Kim WH, Lim JS, Cheon JH. Magnetic resonance enterography predicts the prognosis of Crohn's disease. Intest Res 2018; 16:445-457. [PMID: 30090044 PMCID: PMC6077316 DOI: 10.5217/ir.2018.16.3.445] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 10/16/2017] [Accepted: 10/19/2017] [Indexed: 12/15/2022] Open
Abstract
Background/Aims Magnetic resonance enterography (MRE) has emerged as an important tool in the diagnosis and follow-up of Crohn's disease (CD). The aim of this study was to evaluate whether MRE findings could predict the prognosis of CD. Methods In this retrospective study, a total of 173 patients with clinical remission of CD (n=61) or active CD (n=112) were identified. The outcomes of clinical relapse, admission, surgery, and need for other medications according to the MRE findings were evaluated. Results The presence of active inflammation on MRE was observed in 93 (83%) patients with clinically active CD and in 44 (72.1%) patients with clinical remission of CD, without a statistically significant difference (P=0.091). In multivariate analysis, active inflammation on MRE increased the risk for clinical relapse (hazard ratio [HR], 6.985; 95% confidence interval [CI], 1.024–47.649) in patients with clinical remission of CD. In patients with clinically active CD, active inflammation on MRE increased the risk for CD-related hospitalization (HR, 2.970; 95% CI, 1.006–8.772). Conclusions The presence of active inflammation on MRE was significantly associated with poor prognosis both in patients with clinical remission of CD and in those with active CD.
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Affiliation(s)
- Ji Hoon Lee
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Yong Eun Park
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Nieun Seo
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea
| | - Hyun Jung Lee
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Jung Park
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Tae Il Kim
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Won Ho Kim
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Seok Lim
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Hee Cheon
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.,Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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Huang L, Huang Z, Tai Y, Wang P, Hu B, Tang C. The small bowel diseases detected by capsule endoscopy in patients with chronic abdominal pain: A retrospective study. Medicine (Baltimore) 2018; 97:e0025. [PMID: 29465542 PMCID: PMC5842003 DOI: 10.1097/md.0000000000010025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Chronic abdominal pain (CAP) remains a particular challenge because of its complicated causes, especially when the disorders involve the small bowel, where it is quite difficult to intubate the flexible endoscopes. This study was to investigate the small bowel diseases detected by capsule endoscopy (CE) in CAP patients to evaluate the role of CE on CAP, and analyzed the relationship among the clinical characteristics of CAP patients and the positive rates of CE findings to search for the indications of CE for CAP patients.This retrospective study included 341 patients with CAP defined as recurrent abdominal pain for no <3 months. Each patient underwent CE after a negative diagnostic work-up. All CE images were reviewed by 3 gastroenterologists independently. The positive findings were defined as abnormal findings in the small bowel that might have been the causes of CAP. The final diagnosis was confirmed by CE findings, clinical features, histopathology, and a response to the treatment during the follow-up for at least 3 months after CE.The overall positive rate of CE findings was 28.15% (96/341). The positive rate in CAP-A (CAP with associated symptoms) group was significantly higher than that in CAP-O (CAP only) group (33.16% vs 21.38%, P = .017). Multivariate logistic regression analysis revealed that weight loss (odds ratio [OR] = 2.827, 95% confidence interval (CI) = 1.938-4.926), hypoalbuminemia (OR = 6.142, 95%IC = 4.129-8.274), elevated erythrocyte sedimentation rate (ESR) (OR = 4.025, 95%IC = 3.178-6.892), or increased C-reactive protein (CRP) (OR = 7.539, 95%CI = 5.365-11.723) were significantly associated with high positive rates. On follow-up, final diagnosis was confirmed in 56 of 69 (81.16%) patients with positive CE findings. About half of these patients (46.38%, 32/69) were diagnosed as inflammatory diseases, including Crohn disease (12), tuberculosis (5), NSAID enteropathy (4), etc. Tumors were proved in 21.74% (15/69) patients, including malignant in 7 cases and benign in 8 cases. Parasitosis was found in 9 (13.04%) patients.This study suggests that CE may be helpful for CAP patients to detect the small bowel diseases, half of which were comprised of inflammatory diseases. Besides, weight loss, hypoalbuminemia, elevated ESR, or increased CRP may be regarded as the indications of CE for CAP patients.
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Abstract
BACKGROUND Identifying patients with Crohn's disease with rapid disease progress or high risk of early surgery is crucial to clinical decision making. OBJECTIVE The aim was to evaluate the correlation between the Lémann index at diagnosis and abdominal surgery in the first year after Crohn's disease diagnosis and to find the risk factors for early surgery. DESIGN This was a retrospective cohort study. SETTINGS The study was conducted at a single tertiary hospital. PATIENTS Patients diagnosed with Crohn's disease between 2013 and 2015 in our center were included. MAIN OUTCOME MEASURES The outcome of interest was the need for an abdominal surgery within 1 year after the Lémann index evaluation at diagnosis. RESULTS Of 212 eligible patients, 48 patients underwent abdominal surgery during follow-up. Lémann index was much higher in the surgery group (5.3 vs 2.6; p < 0.001). On tertiles of the Lémann index, the frequency of surgery grew (2.8%, 9.9%, and 55.7%; p < 0.001) as the Lémann index increased. The receiver operating characteristic curve was constructed taking into account the Lémann index for selecting patients with a high risk of surgery. Specificity, sensitivity, and area under receiver operating characteristic curve were 84.8%, 81.3%, and 0.89 of the Lémann Index at a cutoff level of 3.7. Patients with Lémann index ≥3.7 carried a higher risk of abdominal surgery (OR = 18.6; p < 0.001). Stricturing and penetrating disease were predictors for abdominal surgery, whereas antitumor necrosis factor treatment was associated with a significant reduction of surgical requirements. LIMITATIONS This study was limited by its retrospective design. The ability of the Lémann index to predict the long-term risk of surgery was unknown. CONCLUSIONS Lémann index at diagnosis is a reliable index to predict the risk of abdominal surgery in the first year after diagnosis of Crohn's disease. Patients with a high Lémann index might need closer follow-up or aggressive medical therapy. See Video Abstract at http://links.lww.com/DCR/A518.
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