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Herrlinger KR, Stange EF. To STRIDE or not to STRIDE: a critique of "treat to target" in Crohn´s disease. Expert Rev Gastroenterol Hepatol 2023; 17:1205-1219. [PMID: 38131269 DOI: 10.1080/17474124.2023.2296564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
INTRODUCTION The STRIDE consensus suggested to focus on mucosal healing, based on biomarkers and endoscopy, in addition to clinical endpoints as treatment target. This narrative review provides a critique of this concept in Crohn´s disease. AREAS COVERED We analyze and discuss the limitations of endpoints as targets, their currently limited achievability, and the controversial evidence relating to 'treat to target.' The relevant publications in Pubmed were identified in a literature review with the key word 'Crohn´s disease.' EXPERT OPINION All targets and endpoints have their limitations, and, even if reached, not all have unequivocally been shown to improve prognosis. The major deficiency of STRIDE is not only the lack of validation and agreement upon endpoints but little evidence of their achievability in a sizable proportion of patients by dose or timing adjustments or switching the medication. Above all, the concept should be based on clear evidence that patients indeed benefit from appropriate escalation of treatment and relevant controlled studies in this regard have been controversial. Until the STRIDE approach is proven to be superior to standard treatment focusing on clinical well-being, the field should remain reluctant and expect more convincing evidence before new targets are approved.
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Affiliation(s)
| | - Eduard F Stange
- Innere Medizin I, UniversitätsklinikTübingen, Tübingen, Germany
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Mignini I, Maresca R, Ainora ME, Larosa L, Scaldaferri F, Gasbarrini A, Zocco MA. Predicting Treatment Response in Inflammatory Bowel Diseases: Cross-Sectional Imaging Markers. J Clin Med 2023; 12:5933. [PMID: 37762874 PMCID: PMC10532020 DOI: 10.3390/jcm12185933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/05/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Therapeutic options for inflammatory bowel diseases (IBD) have largely expanded in the last decades, both in Crohn's disease and ulcerative colitis, including multiple biological drugs targeting different inflammation pathways. However, choosing the best treatment and timing for each patient is still an undeniable challenge for IBD physicians due to the marked heterogeneity among patients and disease behavior. Therefore, early prediction of the response to biological drugs becomes of utmost importance, allowing prompt optimization of therapeutic strategies and thus paving the way towards precision medicine. In such a context, researchers have recently focused on cross-sectional imaging techniques (intestinal ultrasound, computed tomography, and magnetic resonance enterography) in order to identify predictive markers of response or non-response to biologic therapies. In this review, we aim to summarize data about imaging factors that may early predict disease behavior during biological treatment, potentially helping to define more precise and patient-tailored strategies.
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Affiliation(s)
- Irene Mignini
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (I.M.); (R.M.); (F.S.); (A.G.); (M.A.Z.)
| | - Rossella Maresca
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (I.M.); (R.M.); (F.S.); (A.G.); (M.A.Z.)
| | - Maria Elena Ainora
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (I.M.); (R.M.); (F.S.); (A.G.); (M.A.Z.)
| | - Luigi Larosa
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy;
| | - Franco Scaldaferri
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (I.M.); (R.M.); (F.S.); (A.G.); (M.A.Z.)
| | - Antonio Gasbarrini
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (I.M.); (R.M.); (F.S.); (A.G.); (M.A.Z.)
| | - Maria Assunta Zocco
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (I.M.); (R.M.); (F.S.); (A.G.); (M.A.Z.)
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Tavares de Sousa H, Magro F. How to Evaluate Fibrosis in IBD? Diagnostics (Basel) 2023; 13:2188. [PMID: 37443582 DOI: 10.3390/diagnostics13132188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/21/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
In this review, we will describe the importance of fibrosis in inflammatory bowel disease (IBD) by discussing its distinct impact on Crohn's disease (CD) and ulcerative colitis (UC) through their translation to histopathology. We will address the existing knowledge on the correlation between inflammation and fibrosis and the still not fully explained inflammation-independent fibrogenesis. Finally, we will compile and discuss the recent advances in the noninvasive assessment of intestinal fibrosis, including imaging and biomarkers. Based on the available data, none of the available cross-sectional imaging (CSI) techniques has proved to be capable of measuring CD fibrosis accurately, with MRE showing the most promising performance along with elastography. Very recent research with radiomics showed encouraging results, but further validation with reliable radiomic biomarkers is warranted. Despite the interesting results with micro-RNAs, further advances on the topic of fibrosis biomarkers depend on the development of robust clinical trials based on solid and validated endpoints. We conclude that it seems very likely that radiomics and AI will participate in the future non-invasive fibrosis assessment by CSI techniques in IBD. However, as of today, surgical pathology remains the gold standard for the diagnosis and quantification of intestinal fibrosis in IBD.
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Affiliation(s)
- Helena Tavares de Sousa
- Gastroenterology Department, Algarve University Hospital Center, 8500-338 Portimão, Portugal
- ABC-Algarve Biomedical Center, University of Algarve, 8005-139 Faro, Portugal
| | - Fernando Magro
- Unit of Pharmacology and Therapeutics, Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-450 Porto, Portugal
- Department of Gastroenterology, São João University Hospital Center, 4200-319 Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, 4200-450 Porto, Portugal
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Cicero G, Alibrandi A, Blandino A, Ascenti V, Fries W, Viola A, Mazziotti S. DWI ratios: New indexes for Crohn's disease activity at magnetic resonance enterography? LA RADIOLOGIA MEDICA 2023; 128:16-26. [PMID: 36583843 DOI: 10.1007/s11547-022-01573-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 12/05/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND The aim of the study was to provide radiologists and clinicians a rapid tool for assessment of intestinal inflammation in Crohn's disease (CD) patients through quantification of diffusion-weighted imaging (DWI) signal intensity while performing magnetic resonance enterography (MRE). MATERIALS AND METHODS A monocentric retrospective study was conducted between September 2018 and July 2021 on CD patients who underwent MRE. Two radiologists measured signal intensity on DWI scans at the highest b-value (800 s/mm2) within pathologic intestinal walls, lymph nodes, spleen and psoas muscle and calculated the relative ratios. Spearman, Mann-Whitney and Jonckheere-Terpstra tests were applied for estimating correlation among ratios, significant differences between the two patient groups and determining the trend in relation to endoscopic classes. Wilcoxon's and Cronbach's alpha tests were employed for comparison of DWI measurements and ratios between the two observers. RESULTS Fifty-nine patients were enrolled in the study. In the non-surgical group, correlation has been found among Simple Endoscopic Score for Crohn's Disease (SES-CD) classes and the different ratios: bowel/spleen (p = 0.034), bowel/psoas (p = 0.008) and bowel/lymph node (p = 0.010). Within the surgical group, positive correlation was found only between bowel/lymph node ratio and bowel/psoas ratio (p = 0.014). The J-T test demonstrated an increasing monotonic trend for bowel/psoas ratio and bowel/lymph node ratio and SES-CD classes. Inter-reader evaluation demonstrated no statistical differences for DWI measurements and high degree of concordance for the final ratios. CONCLUSION DWI ratios correlate with endoscopic classes in non-surgical patients and have inter-observer reproducibility.
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Affiliation(s)
- Giuseppe Cicero
- Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Policlinico "G. Martino" Via Consolare Valeria 1, 98100, Messina, Italy.
| | - Angela Alibrandi
- Division of Statistical and Mathematical Sciences, Department of Economics, University of Messina, Messina, Italy
| | - Alfredo Blandino
- Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Policlinico "G. Martino" Via Consolare Valeria 1, 98100, Messina, Italy
| | - Velio Ascenti
- Diagnostic and Interventional Radiology Unit, University of Milan, Milan, Italy
| | - Walter Fries
- Inflammatory Bowel Disease Unit, A.O.U. Policlinico "G. Martino", Messina, Italy
| | - Anna Viola
- Inflammatory Bowel Disease Unit, A.O.U. Policlinico "G. Martino", Messina, Italy
| | - Silvio Mazziotti
- Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Policlinico "G. Martino" Via Consolare Valeria 1, 98100, Messina, Italy
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Caron B, Laurent V, Odille F, Danese S, Hossu G, Peyrin-Biroulet L. New magnetic resonance imaging sequences for fibrosis assessment in Crohn's disease: a pilot study. Scand J Gastroenterol 2022; 57:1450-1453. [PMID: 36173349 DOI: 10.1080/00365521.2022.2094727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVE Patients with Crohn's disease can develop intestinal strictures, containing various degrees of inflammation and fibrosis. Differentiation of the main component of a structuring lesion is the key for defining the therapeutic management. We evaluated new magnetic resonance imaging sequences (IVIM (Intravoxel Incoherent Motion imaging) and T1 mapping) for assessing fibrosis in Crohn's disease. METHODS This was a prospective, single-center study of adult patients with Crohn's disease and magnetic resonance imaging examination, including IVIM and T1 mapping sequences, between March 2021 and April 2021. The association between the perfusion fraction (IVIM), reduction of relaxation time between pre- and postcontrast enhancement (T1 mapping), and the degree of fibrosis assessed by a visual analog scale from 0 to 10 was evaluated. RESULTS A total of 33 patients were included. The perfusion fraction was significantly correlated with fibrosis, with lower perfusion fraction in severe fibrosis (p = .002). T1 mapping sequence was also correlated with the degree of fibrosis, reduction of relaxation time was higher in patients with severe fibrosis than in patients with mild fibrosis (p = .05). CONCLUSION In Crohn's disease, these new tools could improve the performance of magnetic resonance imaging for transmural fibrosis quantification, and may be useful for improving care.
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Affiliation(s)
- Bénédicte Caron
- Department of Gastroenterology, University Hospital of Nancy, Nancy, France; NGERE, U1256 INSERM, Université de Lorraine, Nancy, France
| | - Valérie Laurent
- Department of Radiology, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France.,IADI, U12454, INSERM, Université de Lorraine, CHRU Nancy, Nancy, France
| | - Freddy Odille
- IADI, U12454, INSERM, Université de Lorraine, CHRU Nancy, Nancy, France.,CIC 1433 Innovation Technologique, INSERM, Université de Lorraine, CHRU Nancy, Nancy, France
| | - Silvio Danese
- Department of Biomedical Sciences, Humanitas University, Milan, Italy.,IBD Center, Humanitas Research Hospital, IRCCS, Rozzano, Milan, Italy
| | - Gabriela Hossu
- IADI, U12454, INSERM, Université de Lorraine, CHRU Nancy, Nancy, France.,CIC 1433 Innovation Technologique, INSERM, Université de Lorraine, CHRU Nancy, Nancy, France
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology, University Hospital of Nancy, Nancy, France; NGERE, U1256 INSERM, Université de Lorraine, Nancy, France
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Comparison of Diagnostic Performance of Ultrasonography and Magnetic Resonance Enterography in the Assessment of Active Bowel Lesions in Patients with Crohn’s Disease: A Systematic Review and Meta-Analysis. Diagnostics (Basel) 2022; 12:diagnostics12082008. [PMID: 36010359 PMCID: PMC9407121 DOI: 10.3390/diagnostics12082008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/08/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022] Open
Abstract
We aimed to evaluate and compare the diagnostic performances of ultrasonography (US) and magnetic resonance enterography (MRE) in assessing active bowel lesions in patients with Crohn’s disease (CD). Materials and Methods: We searched PubMed and EMBASE for studies in which US and MRE were used to assess active bowel lesions in CD patients. Bivariate random effect meta-analytic methods were used to estimate pooled sensitivity, specificity, and hierarchical summary receiver operating characteristic (HSROC) curves. We performed a meta-regression analysis to explore the source of study heterogeneity. Results: Eleven studies involving 752 patients were included. US exhibited a pooled sensitivity of 86% (95% confidence interval (CI) 72–94), pooled specificity of 88% (95% CI 78–94), and HSROC of 0.93 in 10 studies. MRE exhibited a pooled sensitivity of 88% (95% CI 76–95), pooled specificity of 87% (95% CI 73–95), and an HSROC of 0.94 in eight studies. In seven studies comparing the diagnostic performances of US and MRE, the summary sensitivity of US and MRE were 86% (95% CI 65–96, I2 = 92.1) and 86% (95% CI 72–93, I2 = 88.1) (p = 0.841), respectively. The summary specificity of US and MRE were 87% (95% CI 78–93, I2 = 79.8%) and 84% (72–90, I2 = 72.5%) (p = 0.431), respectively, which showed no statistical differences. On meta-regression analysis, studies from Europe (p = 0.002), those that used linear US probes (p = 0.012), those on small bowel lesions (p = 0.01), and those with outcomes as combined features (active inflammation) reported higher US sensitivity than those from other regions, those that used both linear and convex US probes, those on small and large bowels, and those with outcome as one feature (bowel wall thickening or ulcer). Studies with pediatric patients (p = 0.001), those with reference standards including US (p = 0.001), and outcomes as combined features (p = 0.01) reported higher MRE specificity than those with adult populations, reference standards other than the US, and outcomes as one feature. Conclusions: In spite of considerable heterogeneity in the included studies, both US and MRE can diagnose active bowel lesions with comparable diagnostic accuracy in patients with CD. The study region, type of US probe, lesion location, investigated outcome for US sensitivity and study population, reference standards, and investigated outcomes for MRE specificity were potential sources of heterogeneity.
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Rispo A, de Sire R, Mainenti PP, Imperatore N, Testa A, Maurea S, Ricciolino S, Nardone OM, Olmo O, Castiglione F. David Against Goliath: Direct Comparison of Handheld Bowel Sonography and Magnetic Resonance Enterography for Diagnosis of Crohn's Disease. Inflamm Bowel Dis 2022; 29:563-569. [PMID: 35666249 DOI: 10.1093/ibd/izac116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND Diagnosis of Crohn's disease (CD) requires ileo-colonoscopy (IC) and cross-sectional evaluation. Recently, "echoscopy" has been used effectively in several settings, although data about its use for CD diagnosis are still limited. Our aim was to evaluate the diagnostic accuracy of handheld bowel sonography (HHBS) in comparison with magnetic resonance enterography (MRE) for CD diagnosis. METHODS From September 2019 to June 2021, we prospectively recruited consecutive subjects attending our third level IBD Unit for suspected CD. Patients underwent IC, HHBS, and MRE in random order with operators blinded about the result of the other procedures. Bivariate correlation between MRE and HHBS was calculated by Spearman coefficient (r). To test the consistency between MRE and HHBS for CD location and complications, the Cohen's k measure was applied. RESULTS Crohn's disease diagnosis was made in 48 out of 85 subjects (56%). Sensitivity, specificity, positive predictive values, and negative predictive values for CD diagnosis were 87.50%, 91.89%, 93.33%, and 85% for HHBS; and 91.67%, 94.59%, 95.65%, and 89.74% for MRE, without significant differences in terms of diagnostic accuracy (89.41% for HHBS vs 92.94% for MRE, P = NS). Magnetic resonance enterography was superior to HHBS in defining CD extension (r = 0.67; P < .01) with a better diagnostic performance than HHBS for detecting location (k = 0.81; P < .01), strictures (k = 0.75; P < .01), abscesses (k = 0.68; P < .01), and fistulas (k = 0.65; P < .01). CONCLUSION Handheld bowel sonography and MRE are 2 accurate and noninvasive procedures for diagnosis of CD, although MRE is more sensitive in defining extension, location, and complications. Handheld bowel sonography could be used as effective ambulatory (or out-of-office) screening tool for identifying patients to refer for MRE examination due to high probability of CD diagnosis.
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Affiliation(s)
- Antonio Rispo
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Roberto de Sire
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Pier Paolo Mainenti
- Institute of Biostructures and Bioimaging, National Council of Research, Naples, Italy
| | - Nicola Imperatore
- Gastroenterology and Endoscopy Unit, AORN Antonio Cardarelli of Naples, Naples, Italy
| | - Anna Testa
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Simone Maurea
- Radiology, Department of Advanced Biochemical Sciences, University Federico II of Naples, Naples, Italy
| | - Simona Ricciolino
- Gastroenterology, Hospital of Ariano Irpino Sant'Ottone-Frangipane, Avellino, Italy
| | - Olga Maria Nardone
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Oriana Olmo
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Fabiana Castiglione
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
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