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Rimola J, Beek KJ, Ordás I, Gecse KB, Cuatrecasas M, Stoker J. Contemporary Imaging Assessment of Strictures and Fibrosis in Crohn Disease, With Focus on Quantitative Biomarkers: From the AJR Special Series on Imaging of Fibrosis. AJR Am J Roentgenol 2024:1-14. [PMID: 37530400 DOI: 10.2214/ajr.23.29693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Patients with Crohn disease commonly have bowel strictures develop, which exhibit varying degrees of inflammation and fibrosis. Differentiation of the distinct inflammatory and fibrotic components of strictures is key for the optimization of therapeutic management and for the development of antifibrotic drugs. Cross-sectional imaging techniques, including ultrasound, CT, and MRI, allow evaluation of the full thickness of the bowel wall as well as extramural complications and associated mesenteric abnormalities. Although promising data have been reported for a range of novel imaging biomarkers for detection of fibrosis and quantification of the degree of fibrosis, these biomarkers lack sufficient validation and standardization for clinical use. Additional methods, including PET with emerging radiotracers, artificial intelligence, and radiomics, are also under investigation for stricture characterization. In this review, we highlight the clinical relevance of identifying fibrosis in Crohn disease, review the histopathologic aspects of strictures in Crohn disease, summarize the morphologic imaging findings of strictures, and explore contemporary developments in the use of cross-sectional imaging techniques for detecting and characterizing intestinal strictures, with attention given to emerging quantitative biomarkers.
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Affiliation(s)
- Jordi Rimola
- Radiology Department, IBD Unit, Hospital Clínic de Barcelona, Villarroel 170, Escala 3, Planta 1, Barcelona 08036, Spain
- Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Kim J Beek
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Ingrid Ordás
- Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Gastroenterology Department, IBD Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Krisztina B Gecse
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Míriam Cuatrecasas
- Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
- Pathology Department, IBD Unit, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Jaap Stoker
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
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Pomenti SF, Bailey DD, Katzka DA. Monitoring and modulating the trajectory of eosinophilic esophagitis. J Allergy Clin Immunol 2024:S0091-6749(24)00297-5. [PMID: 38570041 DOI: 10.1016/j.jaci.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/09/2024] [Accepted: 03/12/2024] [Indexed: 04/05/2024]
Abstract
Current treatments of eosinophilic esophagitis (EoE) aim to eliminate esophageal mucosal inflammation and attenuate, stabilize, or reverse stricture formation. However, our ability to study the long-term course of esophageal strictures in patients with EoE is hampered by the short-term existence of this disease. It is unclear to what degree of control of inflammation is needed to prevent stricture formation. Additionally, identified phenotypes of EoE may ultimately dictate different levels of concern and time intervals for developing fibrosis. Currently, multiple methods are used to monitor patients' disease progression to fibrosis, as symptoms alone do not correlate with disease activity. Endoscopic findings and mucosal histology are used to monitor disease activity, but these focus on improvements in inflammation with inconsistent evaluation of underlying fibrosis. The use of functional lumen impedance planimetry, barium esophagraphy, and endoscopic ultrasound continues to expand in EoE. The rapid advancements in EoE have led to an armamentarium of measuring tools and therapies that holistically characterize disease severity and response to therapy. Nevertheless, our ability to evaluate gross esophageal fibrosis and stricture formation from a transmural rather than mucosal view should be a focus of future investigations because it is essential to monitoring and modulating the trajectory of EoE.
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Affiliation(s)
- Sydney F Pomenti
- Division of Digestive and Liver Diseases, Columbia University Medical Center, New York, NY
| | - Dominique D Bailey
- Division of Pediatric Gastroenterology and Hepatology, Columbia University Medical Center, New York, NY
| | - David A Katzka
- Division of Digestive and Liver Diseases, Columbia University Medical Center, New York, NY.
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Dudek P, Talar-Wojnarowska R. Current Approach to Risk Factors and Biomarkers of Intestinal Fibrosis in Inflammatory Bowel Disease. Medicina (Kaunas) 2024; 60:305. [PMID: 38399592 PMCID: PMC10889938 DOI: 10.3390/medicina60020305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024]
Abstract
Inflammatory bowel disease (IBD), especially Crohn's disease (CD), characterized by a chronic inflammatory process and progressive intestinal tissue damage, leads to the unrestrained proliferation of mesenchymal cells and the development of bowel strictures. Complications induced by fibrosis are related to high rates of morbidity and mortality and lead to a substantial number of hospitalizations and surgical procedures, generating high healthcare costs. The development of easily obtained, reliable fibrogenesis biomarkers is essential to provide an important complementary tool to existing diagnostic and prognostic methods in IBD management, guiding decisions on the intensification of pharmacotherapy, proceeding to surgical methods of treatment and monitoring the efficacy of anti-fibrotic therapy in the future. The most promising potential markers of fibrosis include cartilage oligomeric matrix protein (COMP), hepatocyte growth factor activator (HGFA), and fibronectin isoform- extra domain A (ED-A), as well as antibodies against granulocyte macrophage colony-stimulating factor (GM-CSF Ab), cathelicidin (LL-37), or circulatory miRNAs: miR-19a-3p and miR-19b-3p. This review summarizes the role of genetic predisposition, and risk factors and serological markers potentially contributing to the pathophysiology of fibrotic strictures in the course of IBD.
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Pal P, Gala J, Rebala P, Banerjee R, Ramchandani M, Nabi Z, Kanaganti S, Shetty MG, Gupta R, Lakhtakia S, Rao GV, Tandan M, Reddy DN. Re-intervention rates and symptom-free survival at 1 year after endoscopic versus surgical management of strictures in Crohn's disease: A propensity matched analysis of a prospective inflammatory bowel disease cohort. J Gastroenterol Hepatol 2024; 39:353-359. [PMID: 37897304 DOI: 10.1111/jgh.16384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/02/2023] [Accepted: 10/07/2023] [Indexed: 10/30/2023]
Abstract
BACKGROUND AND AIM Resection for Crohn's disease (CD) related strictures is definitive but carries risk of morbidity, recurrence, and short bowel syndrome. On the contrary, the durability of endotherapy (ET) for CD-related strictures is questionable. Prospective comparative studies are limited. We aimed to prospectively compare the outcomes of ET in CD strictures with a case-matched surgical therapy (ST) cohort. METHODS Patients undergoing ET or resection for primary CD strictures (symptomatic, non-traversable, < 5 cm length, n ≤ 3) between January 2021 and March 2022 in a high-volume tertiary center were compared with regard to recurrent symptoms, escalation of therapy, re-intervention, and re-operation based on propensity matched analysis. RESULTS Fifty-nine patients [49% ET, 57.6% male, median (years): 34 (15-74)] had ≥ 12 months of follow up. Before propensity matching, cumulative re-intervention rate was significantly higher with ET [34.5% (10/29) vs 3.3% (1/30) ST, P = 0.002]. Recurrent symptoms (34.5% vs 26.7%, P = 0.42), escalation of medical therapy (27.5% vs 23.3%, P = 0.64), and re-operation (7.4% vs 3.1%, P = 0.55) were comparable. In propensity matched analysis adjusted for demographics, disease, and stricture characteristics [n = 42, 21 each, 62% male, median (years): 32 (15-60)], cumulative probability of re-intervention rates was higher in ET (28.6% vs 4.8%, P = 0.042). The cumulative probability of recurrent symptoms (ET: 33.3% vs surgery 33.3%, P = 0.93), therapy escalation (ET: 23.8% vs surgery 28.6%, P = 0.75), and re-operation (ET: 9.5% vs surgery 4.8%, P = 0.57) was similar. CONCLUSIONS ET for CD strictures require higher re-interventions compared with resection although re-operation could be avoided in the majority with comparable symptom free survival at 1 year.
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Affiliation(s)
- Partha Pal
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Jaini Gala
- Department of Surgical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Pradeep Rebala
- Department of Surgical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Rupa Banerjee
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Mohan Ramchandani
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Zaheer Nabi
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Swathi Kanaganti
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Mahesh G Shetty
- Department of Surgical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Rajesh Gupta
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Sundeep Lakhtakia
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Guduru Venkat Rao
- Department of Surgical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - Manu Tandan
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - D Nageshwar Reddy
- Department of Medical Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
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Zerbib P, Lailheugue A, Labreuche J, Richa Y, Cailliau E, Onimus T, Valibouze C. Can we predict the risk of esophageal stricture after caustic injury? Dis Esophagus 2024:doae001. [PMID: 38282020 DOI: 10.1093/dote/doae001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 12/06/2023] [Accepted: 01/09/2024] [Indexed: 01/30/2024]
Abstract
Nonoperative management of severe caustic injuries has demonstrated its feasibility, avoiding the need for emergency esogastric resection and resulting in low mortality rates. However, leaving superficial necrosis in place could increase the risk of esophageal stricture development. Data on the risk factors of esophageal stricture secondary to caustic ingestion are scarce. The aim of our study was to identify the risk factors for esophageal strictures after caustic ingestion at admission. From February 2015 to March 2021, all consecutive patients with esophageal or gastric caustic injury score ≥ II according to the Zargar classification were retrospectively analyzed. For each patient, we collected over 50 criteria at admission to the emergency room and then selected among them 20 criteria with the best clinical relevance and limited missing data for risk factor analyses. Among the 184 patients included in this study, 37 developed esophageal strictures (cumulative rate 29.4%). All esophageal strictures occurred within 3 months. In multivariate analyses, the risk factors for esophageal strictures were voluntary ingestion (cause-specific hazard ratio 5.92; 95% confidence interval 1.76-19.95, P = 0.004), Zargar's esophageal score ≥ III (cause-specific hazard ratio 14.30; 95% confidence interval 6.07-33.67, P < 0.001), and severe ear, nose, and throat lesions (cause-specific hazard ratio 2.15; 95% confidence interval 1.09-4.22, P = 0.027). Intentional ingestion, severe endoscopic grade, and severe ENT lesions were identified as risk factors for esophageal stricture following caustic ingestion. Preventive measures for this population require further evaluation.
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Affiliation(s)
- Philippe Zerbib
- Department of Digestive Surgery and Transplantation, University Hospital of Lille Nord de France, Lille, France
| | - Aurore Lailheugue
- Department of Digestive Surgery and Transplantation, University Hospital of Lille Nord de France, Lille, France
| | - Julien Labreuche
- Department of Biostatistics, University Hospital of Lille Nord de France, Lille, France
| | - Yasmina Richa
- Department of Digestive Surgery and Transplantation, University Hospital of Lille Nord de France, Lille, France
- School of Medicine, University College Cork, Cork, Ireland
| | - Emeline Cailliau
- Department of Biostatistics, University Hospital of Lille Nord de France, Lille, France
| | - Thierry Onimus
- Department of Intensive Care Medicine, Critical Care Center, University Hospital of Lille Nord de France, Lille, France
| | - Caroline Valibouze
- Department of Digestive Surgery and Transplantation, University Hospital of Lille Nord de France, Lille, France
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Yılmaz MŞ, Kokurcan A, Uysal FŞ, Özenç G, Yalçınkaya F. Non-transecting urethroplasty in patients with bulbar urethral strictures shorter than three centimeters. Scand J Urol 2023; 57:97-101. [PMID: 36453186 DOI: 10.1080/21681805.2022.2147993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
PURPOSE This study aimed to compare the success and postoperative complication rates of the novel non-transecting urethroplasty (NTU) technique and conventional excision-primary anastomosis (EPA) in the surgical treatment of short bulbar urethral strictures. MATERIAL AND METHODS Data of the patients who underwent excision-primary anastomosis or NTU procedures at our center for the surgical treatment of bulbar urethral strictures shorter than 3 cm between January 2010 and December 2018 were retrospectively reviewed. RESULTS Forty-seven patients fulfilled the eligibility criteria for this study. Among these patients, 22 underwent NTU procedure while 25 underwent EPA. There was no difference between the two groups regarding age, stricture length, etiology, past surgical history, and duration of follow-up. The surgical success rates were 88% and 87,2% in the NTU and EPA groups, respectively (p = 0,603). The complication rates were 12% and 13,6% in NTU and EPA groups, respectively. Two groups were similar concerning complication rates (p = 0,603). CONCLUSION The novel NTU and conventional EPA techniques are similar regarding surgical success and complication rates in the surgical treatment of bulbar urethral strictures shorter than three centimeters.
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Affiliation(s)
- Muhammet Şahin Yılmaz
- Department of Urology, Health Sciences University Samsun Training and Research Hospital, Samsun, Turkey
| | - Alihan Kokurcan
- Department of Urology, Health Sciences University Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Fahrettin Şamil Uysal
- Department of Urology, Health Sciences University Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Görkem Özenç
- Department of Urology, Health Sciences University Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Fatih Yalçınkaya
- Department of Urology, Health Sciences University Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
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Sleiman J, Chirra P, Gandhi NS, Baker ME, Lu C, Gordon IO, Viswanath SE, Rieder F. Crohn's disease related strictures in cross-sectional imaging: More than meets the eye? United European Gastroenterol J 2022; 10:1167-1178. [PMID: 36326993 PMCID: PMC9752301 DOI: 10.1002/ueg2.12326] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/17/2022] [Indexed: 11/06/2022] Open
Abstract
Strictures in Crohn's disease (CD) are a hallmark of long-standing intestinal damage, brought about by inflammatory and non-inflammatory pathways. Understanding the complex pathophysiology related to inflammatory infiltrates, extracellular matrix deposition, as well as muscular hyperplasia is crucial to produce high-quality scoring indices for assessing CD strictures. In addition, cross-sectional imaging modalities are the primary tool for diagnosis and follow-up of strictures, especially with the initiation of anti-fibrotic therapy clinical trials. This in turn requires such modalities to both diagnose strictures with high accuracy, as well as be able to delineate the impact of each histomorphologic component on the individual stricture. We discuss the current knowledge on cross-sectional imaging modalities used for stricturing CD, with an emphasis on histomorphologic correlates, novel imaging parameters which may improve segregation between inflammatory, muscular, and fibrotic stricture components, as well as a future outlook on the role of artificial intelligence in this field of gastroenterology.
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Affiliation(s)
- Joseph Sleiman
- Division of Gastroenterology, Hepatology and NutritionUniversity of Pittsburgh School of MedicinePittsburgh Medical CenterPittsburghPennsylvaniaUSA
| | - Prathyush Chirra
- Department of Biomedical EngineeringCase Western Reserve UniversityClevelandOhioUSA
| | | | - Mark E. Baker
- Imaging InstituteDigestive Diseases and Surgery Institute and Cancer InstituteCleveland Clinic FoundationClevelandOhioUSA
| | - Cathy Lu
- Division of Gastroenterology and HepatologyUniversity of CalgaryCalgaryAlbertaCanada
| | - Ilyssa O. Gordon
- Department of PathologyRobert J Tomsich Pathology and Laboratory Medicine InstituteCleveland Clinic FoundationClevelandOhioUSA
| | - Satish E. Viswanath
- Department of Biomedical EngineeringCase Western Reserve UniversityClevelandOhioUSA
| | - Florian Rieder
- Department of Gastroenterology, Hepatology & NutritionDigestive Diseases and Surgery InstituteCleveland Clinic FoundationClevelandOhioUSA,Department of Inflammation and ImmunityLerner Research InstituteCleveland Clinic FoundationClevelandOhioUSA
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Cagil Y, Tan S, Fadell M, Husain S, Ming Yeh A. The Risk of Colonic Strictures with Colitis Following Hemolytic Uremic Syndrome: A Case Report of a Toddler. JPGN Rep 2022; 3:e188. [PMID: 37168899 PMCID: PMC10158366 DOI: 10.1097/pg9.0000000000000188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 02/01/2022] [Indexed: 05/13/2023]
Abstract
Gastrointestinal manifestations of hemolytic uremic syndrome (HUS) are rare in pediatrics, but can have significant impact on the course of the disease. While various infectious etiologies are associated with HUS, Enterohemorrhagic Escherichia coli (EHEC) has been a focus of interest in its role in post-diarrheal HUS. We report a previously healthy 3-year-old boy who presented with bloody diarrhea, was found to be EHEC positive, and developed gastrointestinal complications of HUS including chronic colitis and strictures. The case illustrates that, though rare, HUS can have long-term gastrointestinal effects.
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Affiliation(s)
- Yasemin Cagil
- From the Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Palo Alto, CA
| | - Serena Tan
- Department of Pediatric Pathology, Palo Alto, CA
| | - Michael Fadell
- Department of Pediatric Radiology, Lucile Packard Children’s Hospital, Stanford Children’s Health, Palo Alto, CA
| | - Sohail Husain
- From the Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Palo Alto, CA
| | - Ann Ming Yeh
- From the Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Palo Alto, CA
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Fousekis FS, Mitselos IV, Tepelenis K, Pappas-Gogos G, Katsanos KH, Lianos GD, Frattini F, Vlachos K, Christodoulou DK. Medical, Endoscopic and Surgical Management of Stricturing Crohn's Disease: Current Clinical Practice. J Clin Med 2022; 11:2366. [PMID: 35566492 PMCID: PMC9104530 DOI: 10.3390/jcm11092366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/12/2022] [Accepted: 04/20/2022] [Indexed: 12/10/2022] Open
Abstract
The development of fibrostenotic intestinal disease occurs in approximately one-third of patients with Crohn's disease and is associated with increased morbidity. Despite introducing new biologic agents, stricturing Crohn's disease remains a significant clinical challenge. Medical treatment is considered the first-line treatment for inflammatory strictures, and anti-TNF agents appear to provide the most considerable benefit among the available medical treatments. However, medical therapy is ineffective on strictures with a mainly fibrotic component, and a high proportion of patients under anti-TNF will require surgery. In fibrotic strictures or cases refractory to medical treatment, an endoscopic or surgical approach should be considered depending on the location, length, and severity of the stricture. Both endoscopic balloon dilatation and endoscopic stricturoplasty are minimally invasive and safe, associated with a small risk of complications. On the other hand, the surgical approach is indicated in patients not suitable for endoscopic therapy. This review aimed to present and analyze the currently available medical, endoscopic, and surgical management of stricturing Crohn's disease.
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Affiliation(s)
- Fotios S. Fousekis
- Department of Gastroenterology and Hepatology, University Hospital of Ioannina, University of Ioannina, 45110 Ioannina, Greece; (F.S.F.); (I.V.M.); (K.H.K.)
| | - Ioannis V. Mitselos
- Department of Gastroenterology and Hepatology, University Hospital of Ioannina, University of Ioannina, 45110 Ioannina, Greece; (F.S.F.); (I.V.M.); (K.H.K.)
| | - Kostas Tepelenis
- Department of Surgery, University Hospital of Ioannina, University of Ioannina, 45110 Ioannina, Greece; (K.T.); (G.P.-G.); (G.D.L.); (K.V.)
| | - George Pappas-Gogos
- Department of Surgery, University Hospital of Ioannina, University of Ioannina, 45110 Ioannina, Greece; (K.T.); (G.P.-G.); (G.D.L.); (K.V.)
| | - Konstantinos H. Katsanos
- Department of Gastroenterology and Hepatology, University Hospital of Ioannina, University of Ioannina, 45110 Ioannina, Greece; (F.S.F.); (I.V.M.); (K.H.K.)
| | - Georgios D. Lianos
- Department of Surgery, University Hospital of Ioannina, University of Ioannina, 45110 Ioannina, Greece; (K.T.); (G.P.-G.); (G.D.L.); (K.V.)
| | | | - Konstantinos Vlachos
- Department of Surgery, University Hospital of Ioannina, University of Ioannina, 45110 Ioannina, Greece; (K.T.); (G.P.-G.); (G.D.L.); (K.V.)
| | - Dimitrios K. Christodoulou
- Department of Gastroenterology and Hepatology, University Hospital of Ioannina, University of Ioannina, 45110 Ioannina, Greece; (F.S.F.); (I.V.M.); (K.H.K.)
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Eskarous H, Krishnamurthy M, Habtesilassie E. Colon stenting in benign diverticular stricture - a case report and review of literature. J Community Hosp Intern Med Perspect 2021; 11:863-865. [PMID: 34804408 PMCID: PMC8604465 DOI: 10.1080/20009666.2021.1969079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Background: Colonic stricture is a feared complication with varied etiology ranging from malignant obstruction to benign diseases. One such condition is recurrent diverticulitis-related strictures. Objectives & Methods: We report a case of a 48-year-old male patient with stricture of the sigmoid colon. The patient refused Sigmoid colon resection. He underwent stent placement and Two weeks later presented with constipation and abdominal discomfort. On Computed Tomography (CT) we discovered stent migration and consequent large bowel obstruction. Patient agreed on undergoing sigmoidectomy with a colostomy. Conclusion: Indication of SEMS for benign lesions remains unclear. Based on the current data, in benign colorectal obstructive lesions, SEMS is a viable option as a bridge to surgery when no other alternative option is available. However, the ASCRS 2020 guidelines did not point to SEMS as an option given the high rate of complications. Our patient was treated with a stent because he refused the resection surgery and found relief for a certain period before developing stent migration. Hence, the patients should be educated about the short and long-term potential effects of stenting before performing the procedure in benign strictures.
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Affiliation(s)
- Hany Eskarous
- Internal Medicine Department, St. Luke's University Hospital, Easton, PA, USA
| | | | - Endeshaw Habtesilassie
- Internal Medicine Department , Jimma University College of Public Health and Medical Sciences, Jimma, Ethiopia
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Narula N, Wong ECL, Dulai PS, Marshall JK, Colombel JF, Reinisch W. Outcomes of Passable and Non-passable Strictures in Clinical Trials of Crohn's Disease: A Post-hoc Analysis. J Crohns Colitis 2021; 15:1649-1657. [PMID: 33693522 DOI: 10.1093/ecco-jcc/jjab045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND AIMS There is paucity of evidence on the reversibility of Crohn's disease [CD]-related strictures treated with therapies. We aimed to describe the clinical and endoscopic outcomes of CD patients with non-passable strictures. METHODS This was a post-hoc analysis of three large CD clinical trial programmes examining outcomes with infliximab, ustekinumab, and azathioprine, which included data on 576 patients including 105 with non-passable strictures and 45 with passable strictures, as measured using the Simple Endoscopic Score for Crohn's Disease [SES-CD]. The impact of non-passable strictures on achieving clinical remission [CR] and endoscopic remission [ER] was assessed using multivariate logistic regression models. CR was defined as a Crohn's Disease Activity Index [CDAI] <150, clinical response as a CDAI reduction of ≥100 points, and ER as SES-CD score <3. RESULTS After 1 year of treatment, patients with non-passable strictures demonstrated the ability to achieve passable or no strictures in 62.5% of cases, with 52.4% and 37.5% attaining CR and ER, respectively. However, patients with non-passable strictures at baseline were less likely to demonstrate symptom improvement compared with those with passable or no strictures, with reduced odds of 1-year CR (adjusted odds ratio [aOR] 0.17, 95% CI 0.03-0.99, p = 0.048). No significant differences were observed between patients with non-passable strictures at baseline and those with passable or no strictures in rates of ER [aOR 0.82, 95% CI 0.23-2.85, p = 0.751] at 1 year. CONCLUSIONS Patients with non-passable strictures can achieve symptomatic and endoscopic remission when receiving therapies used to treat CD, although they are less likely to obtain CR compared with patients without non-passable strictures. These findings support the importance of balancing the presence of non-passable strictures in trial arms.
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Affiliation(s)
- Neeraj Narula
- Department of Medicine [Division of Gastroenterology] and Farncombe Family Digestive Health Research Institute, M cmaster University, Hamilton, ON, Canada
| | - Emily C L Wong
- Department of Medicine [Division of Gastroenterology] and Farncombe Family Digestive Health Research Institute, M cmaster University, Hamilton, ON, Canada
| | - Parambir S Dulai
- Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA
| | - John K Marshall
- Department of Medicine [Division of Gastroenterology] and Farncombe Family Digestive Health Research Institute, M cmaster University, Hamilton, ON, Canada
| | - Jean-Frederic Colombel
- Division of Gastroenterology; Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Walter Reinisch
- Department of Internal Medicine III, Division of Gastroenterology and Hepatology, Medical University of Vienna, Vienna, Austria
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12
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Volz Y, Eismann L, Pfitzinger PL, Jokisch JF, Schulz G, Rodler S, Buchner A, Schlenker B, Stief CG, Kretschmer A. Salvage cystectomy and ileal conduit urinary diversion as a last-line option for benign diseases-perioperative safety and postoperative health-related quality of life. Neurourol Urodyn 2021; 40:1154-1164. [PMID: 33939196 DOI: 10.1002/nau.24671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/09/2021] [Accepted: 03/21/2021] [Indexed: 11/12/2022]
Abstract
AIMS Radical cystectomy and urinary diversion impact various dimensions of patients' health-related-quality-of-life (HRQOL). Yet, less is known about salvage cystectomy as a last-line option for treatment-refractory benign diseases. Therefore, our aim is to provide HRQOL data from a contemporary cohort of open salvage cystectomies for benign conditions. METHODS Fifty-four consecutive patients were enrolled in one single tertiary referral center. Analysis was limited to patients undergoing urinary diversion via ileal conduit (IC). Complications were assessed via Clavien-Dindo-scale. HRQOL was measured using the validated European Organization for Research and Treatment of Cancer QLQ-C30 and QLQ-BLM30 questionnaire. HRQOL QLQ-C30 domains were measured preoperatively and up to 3 years postoperatively. Longitudinal changes were analyzed using Friedman's rank test. Primary endpoint was good general HRQOL based on QLQ-C30 global health status (GHS). Multivariate analysis was performed using logistic regression models with a step-wise backward selection procedure. RESULTS Longitudinal analysis of HRQOL subdomains revealed significantly improved pain (p = .005) and fatigue (p = .002) scores as well as improved social functioning (p = .038). Furthermore, general HRQOL (GHS scores) improved significantly during the follow-up period (28.0 vs. 50.6 [36 months], p = .045). In multivariate analysis, the indication for salvage cystectomy could not be identified as an independent predictor for good general HRQOL. We observed a total number of 10 (41.7%) high-grade (Clavien ≥III) 90 day-complications. Limitations include limited follow-up rates at respective time-points. CONCLUSION Salvage cystectomy and IC can be safely performed as a last-line treatment for benign conditions and increases general HRQOL in the long-term follow-up. Thus, it can play a role in a holistic approach for a challenging clinical setting.
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Affiliation(s)
- Yannic Volz
- Department of Urology, Ludwig-Maximilians University, Munich, Germany
| | - Lennert Eismann
- Department of Urology, Ludwig-Maximilians University, Munich, Germany
| | | | | | - Gerald Schulz
- Department of Urology, Ludwig-Maximilians University, Munich, Germany
| | - Severin Rodler
- Department of Urology, Ludwig-Maximilians University, Munich, Germany
| | - Alexander Buchner
- Department of Urology, Ludwig-Maximilians University, Munich, Germany
| | - Boris Schlenker
- Department of Urology, Ludwig-Maximilians University, Munich, Germany
| | - Christian G Stief
- Department of Urology, Ludwig-Maximilians University, Munich, Germany
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13
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Ferretti F, Cannatelli R, Ardizzone S, Maier JA, Maconi G. Ultrasonographic Evaluation of Intestinal Fibrosis and Inflammation in Crohn's Disease. The State of the Art. Front Pharmacol 2021; 12:679924. [PMID: 33981246 PMCID: PMC8107820 DOI: 10.3389/fphar.2021.679924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/09/2021] [Indexed: 12/16/2022] Open
Abstract
The evaluation of the degree of inflammation and fibrosis, intrinsic elements in intestinal wall damage of Crohn’s disease, is essential to individuate the extent of the lesions and the presence of strictures. This information will contribute to the choice of the appropriate therapeutic approach, the prediction of the response to therapy and the course of the disease. The accurate evaluation of the extent and severity of inflammation and/or fibrosis in Crohn’s disease currently requires histopathological analysis of the intestinal wall. However, in clinical practice and research, transmural assessment of the intestinal wall with cross sectional imaging is increasingly used for this purpose. The B-mode ultrasonograhic characteristics of the intestinal wall, the assessment of its vascularization by color Doppler and I.V. contrast agents, and the evaluation of the mechanical and elastic properties by sonoelastography, may provide useful and accurate information on the severity and extent of inflammation and intestinal fibrosis in Crohn’s disease. The purpose of this review is to provide an update on current sonographic methods to discriminate inflammation and fibrosis in Crohn’s disease.
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Affiliation(s)
- Francesca Ferretti
- Gastroenterology Unit-ASST Fatebenefratelli-Sacco, Department of Biomedical and Clinical Sciences (DIBIC) L. Sacco, Università degli Studi di Milano, Milan, Italy
| | - Rosanna Cannatelli
- Gastroenterology Unit-ASST Fatebenefratelli-Sacco, Department of Biomedical and Clinical Sciences (DIBIC) L. Sacco, Università degli Studi di Milano, Milan, Italy
| | - Sandro Ardizzone
- Gastroenterology Unit-ASST Fatebenefratelli-Sacco, Department of Biomedical and Clinical Sciences (DIBIC) L. Sacco, Università degli Studi di Milano, Milan, Italy
| | - Jeanette A Maier
- General Pathology-Department of Biomedical and Clinical Sciences (DIBIC) L. Sacco, Università degli Studi di Milano, Milan, Italy
| | - Giovanni Maconi
- Gastroenterology Unit-ASST Fatebenefratelli-Sacco, Department of Biomedical and Clinical Sciences (DIBIC) L. Sacco, Università degli Studi di Milano, Milan, Italy
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14
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Alfredsson J, Wick MJ. Mechanism of fibrosis and stricture formation in Crohn's disease. Scand J Immunol 2020; 92:e12990. [PMID: 33119150 PMCID: PMC7757243 DOI: 10.1111/sji.12990] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 10/06/2020] [Accepted: 10/25/2020] [Indexed: 12/11/2022]
Abstract
Crohn's disease (CD) is a chronic inflammatory disease of the gastrointestinal tract that leads to substantial suffering for millions of patients. In some patients, the chronic inflammation leads to remodelling of the extracellular matrix and fibrosis. Fibrosis, in combination with expansion of smooth muscle layers, leaves the bowel segment narrowed and stiff resulting in strictures, which often require urgent medical intervention. Although stricture development is associated with inflammation in the affected segment, anti‐inflammatory therapies fall far short of treating strictures. At best, current therapies might allow some patients to avoid surgery in a shorter perspective and no anti‐fibrotic therapy is yet available. This likely relates to our poor understanding of the mechanism underlying stricture development. Chronic inflammation is a prerequisite, but progression to strictures involves changes in fibroblasts, myofibroblasts and smooth muscle cells in a poorly understood interplay with immune cells and environmental cues. Much of the experimental evidence available is from animal models, cell lines or non‐strictured patient tissue. Accordingly, these limitations create the basis for many previously published reviews covering the topic. Although this information has contributed to the understanding of fibrotic mechanisms in general, in the end, data must be validated in strictured tissue from patients. As stricture formation is a serious complication of CD, we endeavoured to summarize findings exclusively performed using strictured tissue from patients. Here, we give an update of the mechanism driving this serious complication in patients, and how the strictured tissue differs from adjacent unaffected tissue and controls.
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Affiliation(s)
- Johannes Alfredsson
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Mary Jo Wick
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
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15
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Sharma V, Singh H, Mandavdhare HS. Defining 'Satisfactory Response' to Therapy in Abdominal Tuberculosis: A Work in Progress. Infect Disord Drug Targets 2020; 20:111-114. [PMID: 30345933 DOI: 10.2174/1871526518666181022111323] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/15/2018] [Accepted: 10/19/2018] [Indexed: 11/22/2022]
Abstract
Abdominal tuberculosis is difficult to diagnose due to low sensitivity of microbiological tests and the low histological yield. Satisfactory response to therapy has long been used a criteria for the diagnosis of abdominal tuberculosis. However, the appropriate definitions of response to therapy in abdominal tuberculosis have remained unclear. Recent evidence suggests that mucosal healing of ulcers at the end of therapy or at two months (early mucosal response) is a helpful criteria of response to therapy. This also helps in exclusion of multidrug resistant tuberculosis and alternative diagnosis like Crohn's disease. Further limited literature suggests the use of some biomarkers like C-reactive protein in the follow-up of patients with peritoneal or intestinal tuberculosis.
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Affiliation(s)
- Vishal Sharma
- Department of Gastroenterology and General Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Harjeet Singh
- Department of Gastroenterology and General Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Harshal S Mandavdhare
- Department of Gastroenterology and General Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
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16
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Mohy-ud-din N, Kochhar GS. Endoscopic Stricturotomy Is an Efficacious Option for Management of Strictures in Patients With Inflammatory Bowel Disease. Crohns Colitis 360 2020; 2:otaa069. [PMID: 36777742 PMCID: PMC9802457 DOI: 10.1093/crocol/otaa069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Indexed: 01/11/2023] Open
Abstract
Background Strictures are a common complication for patients with inflammatory bowel disease. Endoscopic stricturotomy (ESt) is a novel procedure for treatment of these strictures. Methods A chart review was performed for patients with strictures who underwent ESt. Results Eleven patients were included in the study and the total number of strictures treated was 12. The mean length of the strictures was 10.25 ± 4.36 mm. Technical success was achieved in 92% (n = 11) of the procedures. Postprocedural bleeding occurred in 9% (n = 1) of patients, and none of the patients had complications of infection or perforation. Conclusions ESt is a safe technique with high technical success rate.
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Affiliation(s)
| | - Gursimran S Kochhar
- Division of Gastroenterology, Hepatology and Nutrition, Allegheny Health Network, Pittsburgh, Pennsylvania, USA,Address correspondence to: Gursimran Kochhar, MD, FACP, CNSC, Division of Gastroenterology, Hepatology and Nutrition, Allegheny Health Network, 1307 Federal Street, Suite b 100, Pittsburgh, PA 15212 ()
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17
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Nerli RB, Kadeli V, Deole S, Mishra A, Patil S, Ghagane SC, Hiremath MB, Dixit NS. Postpercutaneous Nephrolithotomy Ureteropelvic Junction Obstruction. J Endourol Case Rep 2020; 6:13-15. [PMID: 32775665 DOI: 10.1089/cren.2019.0084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Percutaneous endoscopic renal surgery such as percutaneous nephrolithotomy (PCNL) is a safe and effective treatment for patients with large and/or complex renal calculi. However, a unique set of complications can occur with this surgical approach that may involve the targeted kidney and surrounding structures. Renal collecting system obstruction after PCNL is rare, but may result from ureteral avulsion, stricture formation, transient mucosal edema, blood clot, or infundibular stenosis. Impaction of stone and trauma during PCNL could induce stricture formation and obstruction. Use of proper percutaneous and endoscopic techniques and instruments will help to reduce the chances of developing such strictures and obstruction.
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Affiliation(s)
- Rajendra B Nerli
- Department of Urology, JN Medical College, KLE Academy of Higher Education & Research, Belagavi, India.,KLES Kidney Foundation, KLES Dr. Prabhakar Kore Hospital & M.R.C, Belagavi, India
| | - Vishal Kadeli
- Department of Urology, JN Medical College, KLE Academy of Higher Education & Research, Belagavi, India
| | - Sushant Deole
- Department of Urology, JN Medical College, KLE Academy of Higher Education & Research, Belagavi, India
| | - Aarushi Mishra
- Department of Urology, JN Medical College, KLE Academy of Higher Education & Research, Belagavi, India
| | - Shivagouda Patil
- Department of Urology, JN Medical College, KLE Academy of Higher Education & Research, Belagavi, India
| | - Shridhar C Ghagane
- Department of Urology, KLES Kidney Foundation, KLES Dr. Prabhakar Kore Hospital & M.R.C, Belagavi, India
| | | | - Neeraj S Dixit
- Department of Urology, KLES Kidney Foundation, KLES Dr. Prabhakar Kore Hospital & M.R.C, Belagavi, India
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18
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De Voogd FA, Mookhoek A, Gecse KB, De Hertogh G, Bemelman WA, Buskens CJ, D'Haens GR. Systematic Review: Histological Scoring of Strictures in Crohn's Disease. J Crohns Colitis 2020; 14:734-742. [PMID: 32645156 DOI: 10.1093/ecco-jcc/jjz177] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS In Crohn's disease, many patients develop a stricture, which can due to inflammation, fibrosis and muscular changes or all at the same time. Determining the predominant component has therapeutic consequences but remains challenging. To develop imaging techniques that assess the nature of a stricture, a gold standard is needed and histopathology is considered as such. This paper provides an overview of published histological scoring systems for strictures in Crohn's disease. METHODS A systematic literature review according to PRISMA guidelines was performed of histological scoring indices that assessed whether a stricture was inflammation-predominant or fibrosis-predominant. Multiple libraries were searched from inception to December 2018. Two reviewers independently assessed abstracts and full-texts. RESULTS Sixteen articles were identified as suitable for this systematic review. A large number of parameters were reported. Extent of neutrophil infiltration and extent of fibrosis in the bowel wall were most frequently described to reflect severity of inflammation and fibrosis, respectively. Among the 16 studies, only two described a numerical scoring system for the inflammatory and fibrotic component separately. Smooth muscle changes were scored in a minority of studies. CONCLUSIONS Multiple scoring systems have been developed. There was large heterogeneity in scoring per parameter and construction of numerical scoring systems. Therefore, we feel that none of the systems is suitable to be used as gold standard. We offer an overview of histological parameters that could be incorporated in a future histological scoring index for strictures.
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Affiliation(s)
- F A De Voogd
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
| | - A Mookhoek
- Amsterdam UMC, VU Medical Center, VU University, Department of Pathology, Amsterdam, The Netherlands
| | - K B Gecse
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
| | - G De Hertogh
- University Hospitals Leuven, University of Leuven, Department of Pathology, Leuven, Belgium
| | - W A Bemelman
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands
| | - C J Buskens
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands
| | - G R D'Haens
- Amsterdam UMC, Amsterdam Medical Center, University of Amsterdam, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
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19
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Abstract
INTRODUCTION Half of Crohn's disease patients develop stenosis around 20 years after the disease onset. For a long time, surgery has been the only therapeutic approach for strictures. The introduction of anti-TNFα could be revolutionary in the management of these patients due to their potential role in stenoses' treatment. The aim of our work was to summarize efficacy data of anti-TNFα drugs in stricturing CD patients. AREAS COVERED Several case series and observational studies have shown that infliximab and adalimumab are effective in determining improvement and remission of stenosis in CD patients in both clinical trials and clinical practice. The injection of intralesional infliximab could be a valid alternative in patients not responding to systemic therapy. EXPERT OPINION Despite the promising literature data, the low level of evidence and the heterogeneity of the available studies do not allow to draw definitive conclusions on the use of TNFα inhibitors for the treatment of strictures. Further prospective randomized studies are needed to confirm and validate this therapeutic approach.
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Affiliation(s)
- Ferdinando D'Amico
- Department of Biomedical Sciences, Humanitas University , Milan, Italy.,Department of Gastroenterology and Inserm NGERE U1256, Nancy University Hospital, University of Lorraine , Vandoeuvre-lès-Nancy, France
| | - Nicola Pugliese
- Department of Biomedical Sciences, Humanitas University , Milan, Italy
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology and Inserm NGERE U1256, Nancy University Hospital, University of Lorraine , Vandoeuvre-lès-Nancy, France
| | - Silvio Danese
- Department of Biomedical Sciences, Humanitas University , Milan, Italy.,IBD Center, Department of Gastroenterology, Humanitas Clinical and Research Center -IRCCS , Milan, Italy
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20
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Shaffer AD, Jacobs IN, Derkay CS, Goldstein NA, Giordano T, Ho S, Kim BJ, Park AH, Simons JP. Management and Outcomes of Button Batteries in the Aerodigestive Tract: A Multi-institutional Study. Laryngoscope 2020; 131:E298-E306. [PMID: 32068903 DOI: 10.1002/lary.28568] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/30/2019] [Accepted: 01/26/2020] [Indexed: 11/09/2022]
Abstract
OBJECTIVES/HYPOTHESIS To describe the clinical presentation, management, and complications associated with button battery impaction in the aerodigestive tract in children. STUDY DESIGN Retrospective case series. METHODS This multi-institutional study, endorsed by the American Society of Pediatric Otolaryngology research consortium, is a retrospective medical record review, including all children at five tertiary-care institutions presenting with button batteries impacted in the aerodigestive tract between January 2002 and December 2014. Battery type/size, duration and location of impaction, presenting symptoms, treatment, complications, and outcomes were examined. RESULTS Eighty-one patients were included (64.2% male), with ingestion witnessed in 20 (24.7%). Median age at presentation was 3 years (range, 1 week-14 years). Median time from diagnosis to removal was 2.5 hours (range, 0.4-72 hours). Locations included the esophagus (n = 48), hypopharynx (n = 1), stomach (n = 6), nasal cavity (n = 22), and ear canal (n = 4). Most common symptoms for esophageal/hypopharyngeal impactions included dysphagia (26.5%), nausea/vomiting (26.5%), drooling (24.5%), cough (18.4%), and fever (18.4%). Most common symptoms for nasal impactions included epistaxis (54.6%), rhinorrhea (40.9%), nasal pain (27.3%), and fever (22.7%). Almost all esophageal impactions were from 3-V (89.5%), 20-mm (81.8%) lithium batteries. Severe esophageal complications included stricture (28.6%), perforation (24.5%), tracheoesophageal fistula formation (8.2%), pneumothorax (4.1%), and bilateral true vocal fold paresis (4.1%). Nasal complications included necrosis (59.1%), septal perforation (27.3%), and saddle nose deformity (4.5%). Duration of impaction correlated with an increased likelihood of persistent symptoms only for nasal batteries (P = .049). CONCLUSIONS Button batteries in the upper pediatric aerodigestive tract or ear canal should be considered a surgical emergency, requiring urgent removal and careful vigilance for complications. LEVEL OF EVIDENCE 4 Laryngoscope, 131:E298-E306, 2021.
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Affiliation(s)
- Amber D Shaffer
- Division of Pediatric Otolaryngology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Ian N Jacobs
- Division of Pediatric Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Craig S Derkay
- Department of Otolaryngology, Children's Hospital of The King's Daughters, Norfolk, Virginia
| | - Nira A Goldstein
- Division of Pediatric Otolaryngology, State University of New York Downstate Medical Center, Brooklyn, New York
| | - Terri Giordano
- Division of Pediatric Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Sandra Ho
- Division of Pediatric Otolaryngology, State University of New York Downstate Medical Center, Brooklyn, New York
| | - Bong J Kim
- Division of Pediatric Otolaryngology, University of Utah School of Medicine, Salt Lake City, Utah, U.S.A
| | - Albert H Park
- Division of Pediatric Otolaryngology, University of Utah School of Medicine, Salt Lake City, Utah, U.S.A
| | - Jeffrey P Simons
- Division of Pediatric Otolaryngology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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22
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Wu PI, Szczesniak MM, Maclean J, Graham PH, Quon H, Choo L, Cook IJ. Endoscopic dilatation improves long-term dysphagia following head and neck cancer therapies: a randomized control trial. Dis Esophagus 2019; 32:5193472. [PMID: 30462194 DOI: 10.1093/dote/doy087] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Long-term pharyngeal dysphagia is a common complication following head and neck cancer (HNC) therapies. High-level evidence for pharyngoesophageal junction (POJ) dilatation as a treatment in this population is lacking. We aimed to evaluate the safety and efficacy of POJ dilatation in dysphagic HNC survivors. This single-center, single-blind, placebo-controlled trial (St George Hospital, Sydney, Australia) randomly assigned (1:1) HNC survivors with long-term dysphagia (≥12 months postcompleted HNC therapies) to receive either graded endoscopic dilatations or sham dilatation (placebo). Patients were blinded to intervention types. Two strata were used for permuted randomization: (1) HNC therapies (total laryngectomy vs. chemoradiation alone); (2) Prior POJ dilatation (nil vs. previous dilatation). The primary endpoint was a short-term clinical response in swallowing function (3 months), defined as (1) a decrease in Sydney Swallow Questionnaire score by ≥200 or a score ≤ ULN; and (2) satisfactory global clinical assessment. The secondary endpoints were dysphagia relapse and serious adverse events. This trial is registered with the Australian New Zealand Clinical Trials Registry (ACTRN12617000707369). Between 13 January 2013 and 16 January 2017, 41 patients were randomly assigned to endoscopic dilatation (n = 21) or placebo (n = 20). The short-term response rate in the endoscopic dilatation group was 76% (n = 16), compared with 5% (n = 1) in the placebo group (P < 0.001). There were no serious adverse events. The finding of a mucosal tear postdilatation was associated strongly with clinical response (OR 13.4, 95% CI [2.4, 74.9], P = 0.003). Kaplan-Meier estimate of dysphagia relapse is 50% by 9.6 months (95% CI [6.0, 19.2]) from completion of dilatation. Endoscopic dilatation of the POJ is a safe and efficacious therapy for the treatment of long-term dysphagia in HNC survivors. Close follow-up and repeat dilatation are necessary given the high dysphagia relapse rate.
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Affiliation(s)
- P I Wu
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia.,Speech Pathology Department, St George Hospital, Sydney, NSW, Australia
| | - M M Szczesniak
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia.,Speech Pathology Department, St George Hospital, Sydney, NSW, Australia
| | - J Maclean
- Speech Pathology Department, St George Hospital, Sydney, NSW, Australia.,St George Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - P H Graham
- Department of Radiation Oncology, Cancer Care Centre, St George Hospital, Sydney, NSW, Australia
| | - H Quon
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital.,Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins University, Baltimore, MD, USA
| | - L Choo
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia.,Speech Pathology Department, St George Hospital, Sydney, NSW, Australia
| | - I J Cook
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia.,Speech Pathology Department, St George Hospital, Sydney, NSW, Australia
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Lattanzi B, Ott P, Rasmussen A, Kudsk KR, Merli M, Villadsen GE. Ischemic Damage Represents the Main Risk Factor for Biliary Stricture After Liver Transplantation: A Follow-Up Study in a Danish Population. In Vivo 2019; 32:1623-1628. [PMID: 30348725 DOI: 10.21873/invivo.11423] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 08/03/2018] [Accepted: 08/06/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Biliary complications (BC) are frequently observed following liver transplantation. The aim of the present retrospective study, conducted at an outpatients' tertiary care hospital, was to determine the incidence of biliary complications and risk factors associated with their development in liver transplantation (lT) patients. MATERIALS AND METHODS The medical records were reviewed for all patients who underwent liver transplantation at the Rigshospitalet, Copenhagen, Denmark, from 2000 to 2011 and were referred to the Aarhus University Hospital for follow-up. Patients who died within 3 months of surgery or had incomplete clinical information were excluded. All data for demographic characteristics and possible risk factors for development of biliary stricture were collected. Fifty-one patients were included. RESULTS The median age at transplantation was 40 (range=7-64) years, and 53% of patients were males. Biliary complications occurred in 18 patients (35%), the majority of whom developed strictures (12 patients, 24%). Univariate and multivariate analyses revealed that cytomegalovirus infection (p=0.008), hepatic artery obstruction (p=0.03) and hepatic artery graft abnormalities (p=0.03) were independent risk factors for the development of biliary strictures. CONCLUSION One-third of patients presented biliary complications after liver transplantation, among which biliary strictures were the most common. Cytomegalovirus infection, hepatic artery stenosis and anatomical abnormality of the graft's hepatic artery are independent risk factors for the development of biliary stricture.
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Affiliation(s)
- Barbara Lattanzi
- Department of Clinical Medicine, Umberto 1 Hospital, Rome, Italy
| | - Peter Ott
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Allan Rasmussen
- Department of Surgical Gastroenterology and Liver Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Karen Raben Kudsk
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Manuela Merli
- Department of Clinical Medicine, Umberto 1 Hospital, Rome, Italy
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Wu PI, Szczesniak MM, Fox DA, Maclean J, Blom ED, Cook IJ. Novel Therapeutic Strategy for Pharyngoesophageal Stricture following Total Laryngectomy. Otolaryngol Head Neck Surg 2018; 160:567-569. [PMID: 30526296 DOI: 10.1177/0194599818815164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Current therapeutic strategies for pharyngoesophageal stricture, while effective in the short term, are protracted and costly in the longer term. Conceptually, if a stricture can be dilated with minimal tissue injuries, the rate of fibrosis and the resultant stricture recurrence could be reduced. We evaluated a prototype computer-controlled syringe pump device programmed to distend a commercially available balloon dilator at variable rate, asserting incremental lumen distension pressures tailored to the resistive force encountered within the stricture. We completed 17 graded dilatation procedures among 4 total laryngectomy patients. All patients had a short-term response (1 month), with a mean decrement (improvement) in Sydney Swallow Questionnaire score of 448 (total score range, 0-1700; normal <234). The overall procedural tolerability and safety were encouraging; the only complication was the displacement of the voice prosthesis during 1 dilatation. From a technical viewpoint, the main challenge was to maintain the balloon in position during dilatation.
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Affiliation(s)
- Peter I Wu
- 1 Department of Gastroenterology and Hepatology, St George Hospital, Sydney, Australia.,2 St George Clinical School, University of New South Wales, Sydney, Australia
| | - Michal M Szczesniak
- 1 Department of Gastroenterology and Hepatology, St George Hospital, Sydney, Australia.,2 St George Clinical School, University of New South Wales, Sydney, Australia
| | | | - Julia Maclean
- 2 St George Clinical School, University of New South Wales, Sydney, Australia.,3 Speech Pathology Department, St George Hospital, Sydney, Australia
| | - Eric D Blom
- 4 Center for Ear Nose Throat and Allergy, Carmel, Indiana, USA
| | - Ian J Cook
- 1 Department of Gastroenterology and Hepatology, St George Hospital, Sydney, Australia.,2 St George Clinical School, University of New South Wales, Sydney, Australia
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Bouhnik Y, Mary JY. Adalimumab in Crohn's disease and symptomatic small bowel strictures. Gut 2018; 67:199. [PMID: 28601842 DOI: 10.1136/gutjnl-2017-314431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 05/08/2017] [Indexed: 12/08/2022]
Affiliation(s)
- Yoram Bouhnik
- Gastroentérologie, MICI et Assistance Nutritive, Hôpital Beaujon, Clichy, France
| | - Jean-Yves Mary
- UMR-S-1153 Inserm, Denis Diderot - Paris 7 university, Hôpital Saint-Louis, Paris, France
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26
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Curciarello R, Docena GH, MacDonald TT. The Role of Cytokines in the Fibrotic Responses in Crohn's Disease. Front Med (Lausanne) 2017; 4:126. [PMID: 28824915 PMCID: PMC5545939 DOI: 10.3389/fmed.2017.00126] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 07/18/2017] [Indexed: 12/11/2022] Open
Abstract
Crohn’s disease is an idiopathic disorder of the gut thought to be caused by a combination of environmental and genetic factors in susceptible individuals. It is characterized by chronic transmural inflammation of the terminal ileum and colon, with typical transmural lesions. Complications, including fibrosis, mean that between 40 and 70% of patients require surgery in the first 10 years after diagnosis. Presently, there is no evidence that the current therapies which dampen inflammation modulate or reverse intestinal fibrosis. In this review, we focus on cytokines that may lead to fibrosis and stenosis and the contribution of experimental models for understanding and treatment of gut fibrosis.
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Affiliation(s)
- Renata Curciarello
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.,Instituto de Estudios Inmunológicos y Fisiopatológicos -IIFP-CONICET-Universidad Nacional de La Plata, La Plata, Argentina
| | - Guillermo H Docena
- Instituto de Estudios Inmunológicos y Fisiopatológicos -IIFP-CONICET-Universidad Nacional de La Plata, La Plata, Argentina
| | - Thomas T MacDonald
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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James S, Tyrrell-Price J. Commentary: PET/MR Versus PET/CT Imaging: Impact on the Clinical Management of Small-Bowel Crohn's Disease. Front Med (Lausanne) 2017; 4:59. [PMID: 28596956 PMCID: PMC5443286 DOI: 10.3389/fmed.2017.00059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 05/01/2017] [Indexed: 11/13/2022] Open
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Arebi N, Hart AL, Thomas-Gibson S. A review of endoscopic balloon dilatation techniques for treating Crohn's strictures: time to standardise therapy. Expert Rev Gastroenterol Hepatol 2016; 10:1101-1107. [PMID: 27411078 DOI: 10.1080/17474124.2016.1212656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Endoscopic balloon dilatation (EBD) is a recognised treatment for symptomatic Crohn's disease strictures. Over 3000 procedure are reported in the literature and yet the long term benefits are unclear. This is largely because of different populations, study designs, techniques, types of strictures, the outcome measures used and follow-up periods. Areas covered: We summarised the techniques reported in the literature based on a systematic review and key factors that may influence outcome: pre-intervention imaging, stricture length and type, balloon size in relation to intestinal lumen diameter, duration of dilatation, frequency of repeat dilatation and instructions on follow-up. Expert commentary: We noted that shorter, non-ulcerated and anastomotic strictures fare better and 2 mins dilatation duration was the commonest technique used without an increased risk of complications. The findings were translated into a standardised protocol and a management pathway to guide clinicians on the therapeutic strategy for Crohn's strictures. To resolve the uncertainty about long-term benefits, future studies should adopt a replicable standardised EBD technique, define degree of fibrosis to decide therapy accordingly, compare it to alternative interventions (strictureplasty or stents) within a randomised controlled trial and apply a validated outcome measure to include intestinal damage and quality of life.
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Affiliation(s)
- Naila Arebi
- a Department of Gastroenterology , St. Mark's Hospital , London , UK
| | - Ailsa L Hart
- a Department of Gastroenterology , St. Mark's Hospital , London , UK
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Santhosh S, Bhattacharya A, Rana SS, Bhasin DK, Gupta R, Mittal BR. Noninvasive evaluation of active pan-ulcerative colitis with multiple strictures using Fluorine-18-Fluorodeoxyglucose positron emission tomography/computed tomography. Indian J Nucl Med 2016; 31:65-6. [PMID: 26917901 PMCID: PMC4746848 DOI: 10.4103/0972-3919.172367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Ulcerative colitis (UC) is an inflammatory bowel disease characterized by waxing and waning inflammation that changes in severity and extent and may progress to neoplasia, especially in the presence of strictures. When patients have nonnegotiable strictures or severe inflammation with ulcers, colonoscopy is difficult and carries the risk of perforation. The authors present a patient with pan-UC with multiple strictures, in whom fluorodeoxyglucose positron emission tomography/computed tomography was used to noninvasively evaluate the extent and severity of the disease.
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Affiliation(s)
- Sampath Santhosh
- Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Anish Bhattacharya
- Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Surinder Singh Rana
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepak Kumar Bhasin
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajesh Gupta
- Department of General Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Bhagwant Rai Mittal
- Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Buda A, Okolo PI. Endoscopic treatment of Crohn's complications. Expert Rev Gastroenterol Hepatol 2014; 8:887-95. [PMID: 24849124 DOI: 10.1586/17474124.2014.919850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The progression to fistula and strictures is part of the natural history of Crohn's disease (CD) and these complications negatively affect the quality of life of CD patients. Surgery is the traditional treatment of CD strictures. However, due the chronicity of the inflammatory process and the associated fibrosis, postoperative recurrence occurs frequently. The lack of specific drug to treat fibrotic strictures and their irreversible nature has drawn the attention to less invasive and bowel-sparing therapeutic modalities. Endoluminal therapies may provide effective option in relieving symptoms associated with CD complications and reduce the need for repeated surgery with substantial clinical benefit. This review will discuss the current use and efficacy of the endoscopic treatment of CD complications. New endoscopic modalities and recent advances will be also evaluated.
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Affiliation(s)
- Andrea Buda
- Department of Surgical, Gastroenterological and Oncological Sciences, Division of Gastroenterology, University of Padova, 35100, Padova, Italy
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Abstract
Among the workers in a rubber plantation in South India, ingestion of formic acid either accidentally or with suicidal intention is a common problem. Formic acid is diluted and used for coagulation of rubber latex. Easy availability makes formic acid a common poison. The aim of this article is to study the case of formic acid poisoning, its complications and management. Patient was managed symptomatically. Antidote was not used and no nasogastric aspiration was done. Patient had dysphagia; nutrition was maintained with open gastrostomy done on day 5 and subsequent enteral feeding. Measures to prevent anticipated complications were undertaken. Stricture of the esophagus is a common complication leading to long-term morbidity. After initial management, all patients should be on follow-up for prevention and management of strictures. Workers should be educated on complications of formic acid poisoning and easy availability should be curtailed by enforcing remedial measures.
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Affiliation(s)
| | - Mahmedsaeed Vora
- Department of General Medicine, Tiruvalla Medical Mission Hopsital, Tiruvalla, Kerala, India
| | - Vimod Wills
- Department of General Medicine, Tiruvalla Medical Mission Hopsital, Tiruvalla, Kerala, India
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Lee J, Allen R, Ashley S, Becker S, Cummins P, Gbadamosi A, Gooding O, Huston J, Le Couteur J, O'Sullivan D, Wilson S, Lomer MCE. British Dietetic Association evidence-based guidelines for the dietary management of Crohn's disease in adults. J Hum Nutr Diet 2013; 27:207-18. [PMID: 24313460 DOI: 10.1111/jhn.12176] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Crohn's disease is a debilitating chronic inflammatory bowel disease. Appropriate use of diet and nutritional therapy is integral to the overall management strategy of Crohn's disease. The aim was to develop evidence-based guidelines on the dietary management of Crohn's disease in adults. METHODS Questions relating to the dietary management of Crohn's disease were developed. These included the roles of enteral nutrition to induce remission, food re-introduction diets to structure food re-introduction and maintain remission, and dietary management of stricturing disease, as well as whether probiotics or prebiotics induce or maintain remission. A comprehensive literature search was conducted and relevant studies from January 1985 to November 2009 were identified using the electronic database search engines CINAHL, Cochrane Library, EMBASE, MEDLINE, Scopus and Web of Science. Evidence statements, recommendations, practical considerations and research recommendations were developed. RESULTS Fifteen research papers were critically appraised and the evidence formed the basis of these guidelines. Although corticosteroids appear to be more effective, enteral nutrition (elemental or non-elemental) can be offered as an alternative option to induce disease remission. After a course of enteral nutrition, food re-introduction diets may be useful to structure food re-introduction and help maintain disease remission. Dietary fibre is contraindicated in the presence of strictures as a result of the risk of mechanical obstruction. The use of probiotics and prebiotics is not currently supported. CONCLUSIONS As an alternative to corticosteroids, evidence supports enteral nutrition to induce disease remission. Food re-introduction diets provide structure to food re-introduction and help maintain disease remission. These guidelines aim to reduce variation in clinical practice.
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Affiliation(s)
- J Lee
- Department of Nutrition and Dietetics, Addenbrookes, Cambridge, UK
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Tabibian JH, Macura SI, O'Hara SP, Fidler JL, Glockner JF, Takahashi N, Lowe VJ, Kemp BJ, Mishra PK, Tietz PS, Splinter PL, Trussoni CE, LaRusso NF. Micro-computed tomography and nuclear magnetic resonance imaging for noninvasive, live-mouse cholangiography. J Transl Med 2013; 93:733-43. [PMID: 23588707 PMCID: PMC3875307 DOI: 10.1038/labinvest.2013.52] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The cholangiopathies are a diverse group of biliary tract disorders, many of which lack effective treatment. Murine models are an important tool for studying their pathogenesis, but existing noninvasive methods for assessing biliary disease in vivo are not optimal. Here we report our experience with using micro-computed tomography (microCT) and nuclear magnetic resonance (MR) imaging to develop a technique for live-mouse cholangiography. Using mdr2 knockout (mdr2KO, a model for primary sclerosing cholangitis (PSC)), bile duct-ligated (BDL), and normal mice, we performed in vivo: (1) microCT on a Siemens Inveon PET/CT scanner and (2) MR on a Bruker Avance 16.4 T spectrometer, using Turbo Rapid Acquisition with Relaxation Enhancement, IntraGate Fast Low Angle Shot, and Half-Fourier Acquisition Single-shot Turbo Spin Echo methods. Anesthesia was with 1.5-2.5% isoflurane. Scans were performed with and without contrast agents (iodipamide meglumine (microCT), gadoxetate disodium (MR)). Dissection and liver histology were performed for validation. With microCT, only the gallbladder and extrahepatic bile ducts were visualized despite attempts to optimize timing, route, and dose of contrast. With MR, the gallbladder, extra-, and intrahepatic bile ducts were well-visualized in mdr2KO mice; the cholangiographic appearance was similar to that of PSC (eg, multifocal strictures) and could be improved with contrast administration. In BDL mice, MR revealed cholangiographically distinct progressive dilation of the biliary tree without ductal irregularity. In normal mice, MR allowed visualization of the gallbladder and extrahepatic ducts, but only marginal visualization of the diminutive intrahepatic ducts. One mouse died during microCT and MR imaging, respectively. Both microCT and MR scans could be obtained in ≤20 min. We, therefore, demonstrate that MR cholangiography can be a useful tool for longitudinal studies of the biliary tree in live mice, whereas microCT yields suboptimal duct visualization despite requiring contrast administration. These findings support further development and application of MR cholangiography to the study of mouse models of PSC and other cholangiopathies.
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Affiliation(s)
- James H Tabibian
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
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Chen Y, Chitapanarux T, Wu J, Soon RK, Melton AC, Yee HF. Inducible NOS mediates CNP-induced relaxation of intestinal myofibroblasts. Am J Physiol Gastrointest Liver Physiol 2013; 304:G673-9. [PMID: 23348803 PMCID: PMC3625877 DOI: 10.1152/ajpgi.00214.2012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Contraction of intestinal myofibroblasts (IMF) contributes to the development of strictures and fistulas seen in inflammatory bowel disease, but the mechanisms that regulate tension within these cells are poorly understood. In this study we investigated the role of nitric oxide (NO) signaling in C-type natriuretic peptide (CNP)-induced relaxation of IMF. We found that treatment with ODQ, a soluble guanylyl cyclase (sGC) inhibitor, or N(G)-nitro-L-arginine (L-NNA) or N(G)-monomethyl-L-arginine (L-NMMA), inhibitors of NO production, all impaired the relaxation of human and mouse IMF in response to CNP. ODQ, L-NNA, and L-NMMA also prevented CNP-induced elevations in cGMP concentrations, and L-NNA or L-NMMA blocked CNP-induced decreases in myosin light phosphorylation. IMF isolated from transgenic mice deficient in inducible nitric oxide synthase (iNOS) had reduced relaxation responses to CNP compared with IMF from control mice and were insensitive to the effects of ODQ, L-NNA, and L-NMMA on CNP treatment. Together these data indicate that stimulation of sGC though NO produced by iNOS activation is required for maximal CNP-induced relaxation in IMF.
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Affiliation(s)
- Yishi Chen
- 1Department of Medicine and Liver Center, University of California San Francisco, San Francisco, California; ,2AllCells, Emeryville, California; and
| | - Taned Chitapanarux
- 3Division of Gastrohepatology, Department of Medicine, Chiang Mai University, Thailand
| | - Jianfeng Wu
- 1Department of Medicine and Liver Center, University of California San Francisco, San Francisco, California;
| | - Russell K. Soon
- 1Department of Medicine and Liver Center, University of California San Francisco, San Francisco, California;
| | - Andrew C. Melton
- 1Department of Medicine and Liver Center, University of California San Francisco, San Francisco, California;
| | - Hal F. Yee
- 1Department of Medicine and Liver Center, University of California San Francisco, San Francisco, California;
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