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Abstract
Pouchitis is an acute or chronic inflammatory disease of the ileal reservoir. It is common after restorative proctocolectomy with ileal pouch-anal anastomosis, and treatment of chronic antibiotic-refractory pouchitis has proven challenging. Most cases of acute pouchitis evolve into chronic pouchitis. The aetiology of acute pouchitis is likely to be partly related to the gut microbiota, whereas the pathophysiology of chronic pouchitis involves abnormal interactions between genetic disposition, faecal stasis, the gut microbiota, dysregulated host immunity, surgical techniques, ischaemia and mesentery-related factors. Pouchoscopy with biopsy is the most valuable modality for diagnosis, disease monitoring, assessment of treatment response, dysplasia surveillance and delivery of endoscopic therapy. Triggering or risk factors, such as Clostridioides difficile infection and use of non-steroidal anti-inflammatory drugs, should be modified or eradicated. In terms of treatment, acute pouchitis usually responds to oral antibiotics, whereas chronic antibiotic-refractory pouchitis often requires induction and maintenance therapy with integrin, interleukin or tumour necrosis factor inhibitors. Chronic pouchitis with ischaemic features, fistulae or abscesses can be treated with hyperbaric oxygen therapy.
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Affiliation(s)
- Bo Shen
- Center for Inflammatory Bowel Diseases and the Global Center for Integrated Colorectal Surgery and IBD Interventional Endoscopy, Columbia University Irving Medical Center/New York Presbyterian Hospital, New York, NY, USA.
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Knowles JP, Church J. Normal Ileal Mucus Is Inadequate for Epithelial Protection in Ileal Pouch Mucosa. Dis Colon Rectum 2024; 67:635-644. [PMID: 38276959 DOI: 10.1097/dcr.0000000000003163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
BACKGROUND Clinical, nonspecific pouchitis is common after restorative proctocolectomy for ulcerative colitis, but its cause is unknown. A possible lack of protection for the ileal mucosa in its role as a reservoir for colonic-type bacteria may be the missing piece in defining the causes of pouchitis. OBJECTIVE The study aimed to review the causes of pouchitis and introduce the hypothesis that inadequate mucus protection in the pouch, combined with a predisposition to abnormal inflammation, is the most common cause of nonspecific pouchitis. DATA SOURCES Review of PubMed and MEDLINE for articles discussing pouchitis and intestinal mucus. STUDY SELECTION Studies published from 1960 to 2023. The main search terms were "pouchitis," and "intestinal mucus," whereas Boolean operators were used with multiple other terms to refine the search. Duplicates and case reports were excluded. MAIN OUTCOME MEASURES Current theories about the cause of pouchitis, descriptions of the role of mucus in the physiology of intestinal protection, and evidence of the effects of lack of mucus on mucosal inflammation. RESULTS The crossreference of "intestinal mucus" with "pouchitis" produced 9 references, none of which discussed the role of mucus in the development of pouchitis. Crossing "intestinal mucus" with "pouch" resulted in 32 articles, combining "pouchitis" with "barrier function" yielded 37 articles, and "pouchitis" with "permeability" yielded only 8 articles. No article discussed the mucus coat as a barrier to bacterial invasion of the epithelium or mentioned inadequate mucus as a factor in pouchitis. However, an ileal pouch produces a colonic environment in the small bowel, and the ileum lacks the mucus protection needed for this sort of environment. This predisposes pouch mucosa to bacterial invasion and chronic microscopic inflammation that may promote clinical pouchitis in patients prone to an autoimmune response. LIMITATIONS No prior studies address inadequate mucus protection and the origin of proctitis. There is no objective way of measuring the autoimmune tendency in patients with ulcerative colitis. CONCLUSIONS Studies of intestinal mucus in the ileal pouch and its association with pouchitis are warranted.
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Affiliation(s)
- Jonathan P Knowles
- Division of Colorectal Surgery, Columbia University Medical Center, New York, New York
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Beheshti Maal A, Shahrbaf MA, Sadri B, Hossein-Khannazer N, Mansournia MA, Vosough M. Prevalence of Hepatobiliary Manifestations in Inflammatory Bowel Disease: A GRADE Assessed Systematic Review and Meta-Analysis of more than 1.7 Million Patients. J Crohns Colitis 2024; 18:360-374. [PMID: 37695111 DOI: 10.1093/ecco-jcc/jjad157] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/21/2023] [Accepted: 09/08/2023] [Indexed: 09/12/2023]
Abstract
BACKGROUND AND AIMS Inflammatory bowel disease [IBD] comprises an immune-mediated group of chronic gastrointestinal disorders. Patients with IBD may experience extraintestinal manifestations, such as hepatobiliary complications. This meta-analysis aims to assess the prevalence of different hepatic manifestations in IBD patients. METHODS For this systematic review and meta-analysis, PubMed, Scopus, Web of Science, and Embase were searched until July 20, 2022, by specifying keywords for IBD, hepatic manifestations, and study type. Full texts of cohort studies in English that examined the prevalence of different hepatic manifestations were included in this study. The primary outcome was the overall prevalence of hepatic manifestations in IBD patients. For the statistical analysis, a proportion by random effect model meta-analysis was performed. The registration number for the protocol of this study in PROSPERO is CRD42022369595. RESULTS From the 4421 articles retrieved from the primary search, 118 met the inclusion criteria and were included in the final analysis. After a pooled analysis of 1 729 128 patients, the overall prevalence of hepatic manifestations was 3.49% (95% confidence interval [CI]: 3.31-3.68%; I2: 99.55%). The pooled prevalence of non-alcoholic fatty liver disease in 228 216 patients was 26.1% [95% CI: 22.1-30.2%; I2: 99.018%]. After pooled analysis of 9642 patients, the prevalence of primary sclerosing cholangitis was 1.67% [95% CI: 1.47-1.88%; I2: 99.10%]. The pooled prevalence of biliary stones was 4.1% [95% CI: 3.6-4.7%; I2: 97.43%]. Autoimmune hepatitis (0.51% [95% CI: 0.26-0.75%]; I2: 85.36%) and portal vein thrombosis (0.21% [95% CI: 0.08-0.33%]; I2: 97.95%) are considered as rare manifestations. CONCLUSION This study summarizes the prevalence and importance of different hepatic manifestations in IBD patients. These findings are crucial for the management of extraintestinal manifestations, especially hepatic manifestations, in IBD patients.
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Affiliation(s)
- Alireza Beheshti Maal
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Shahrbaf
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Bahareh Sadri
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Nikoo Hossein-Khannazer
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Mansournia
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Massoud Vosough
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Experimental Cancer Medicine, Institution for Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
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Maspero M, Holubar SD, Raj R, Yilmaz S, Prien C, Lavryk O, Pita A, Hashimoto K, Steele SR, Hull TL. Ileal Pouch-anal Anastomosis in Primary Sclerosing Cholangitis-inflammatory Bowel Disease (PSC-IBD): Long-term Pouch and Liver Transplant Outcomes. Ann Surg 2023; 278:961-968. [PMID: 37477000 DOI: 10.1097/sla.0000000000006041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
OBJECTIVE To compare the effect of liver transplantation (LT) on ileal pouch-anal anastomosis (IPAA) outcomes in patients with primary sclerosing cholangitis and inflammatory bowel disease (PSC-IBD). BACKGROUND Patients with PSC-IBD may require both IPAA for colitis and LT for PSC. METHODS Patients with PSC-IBD from out institutional pouch registry (1985-2022) were divided according to LT status and timing of LT (before and after IPAA) and their outcomes analyzed. RESULTS A total of 160 patients were included: 112 (70%) nontransplanted at last follow-up; 48 (30%) transplanted, of which 23 (14%) before IPAA and 25 (16%) after. Nontransplanted patients at IPAA had more laparoscopic procedures [37 (46%) vs 8 (18%), P =0.002] and less blood loss (median 250 vs 400 mL, P =0.006). Morbidity and mortality at 90 days were similar. Chronic pouchitis was higher in transplanted compared with nontransplanted patients [32 (67%) vs 51 (45.5%), P =0.03], but nontransplanted patients had a higher rate of chronic antibiotic refractory pouchitis. Overall survival was similar, but nontransplanted patients had more PSC-related deaths (12.5% vs 2%, P =0.002). Pouch survival at 10 years was 90% for nontransplanted patients and 100% for transplanted patients (log-rank P =0.052). Timing of LT had no impact on chronic pouchitis, pouch failure, or overall survival. PSC recurrence was 6% at 10 years. For transplanted patients, graft survival was similar regardless of IPAA timing. CONCLUSIONS In patients with PSC-IBD and IPAA, LT is linked to an increased pouchitis rate but does not affect overall and pouch survival. Timing of LT does not influence short-term and long-term pouch outcomes.
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Affiliation(s)
- Marianna Maspero
- Department of Colon & Rectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Stefan D Holubar
- Department of Colon & Rectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Roma Raj
- Department of HPB Surgery and Liver Transplantation, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Sumeyye Yilmaz
- Department of Colon & Rectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Christopher Prien
- Department of Colon & Rectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Olga Lavryk
- Department of Colon & Rectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Alejandro Pita
- Department of HPB Surgery and Liver Transplantation, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Koji Hashimoto
- Department of HPB Surgery and Liver Transplantation, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Scott R Steele
- Department of Colon & Rectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Tracy L Hull
- Department of Colon & Rectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH
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Maspero M, Hull TL. Clinical approach to patients with an ileal pouch. Abdom Radiol (NY) 2023; 48:2918-2929. [PMID: 37005915 DOI: 10.1007/s00261-023-03888-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 04/04/2023]
Abstract
Restorative proctocolectomy with ileal pouch-anal anastomosis is the procedure of choice to maintain intestinal continuity when a total proctocolectomy is a required. It is a technically challenging operation that may be burdened by several nuanced complications both in the immediate postoperative period and in the long term. Most patients with a pouch and any kind of complication will undergo radiological studies, thus multidisciplinary collaboration between surgeons, gastroenterologists, and radiologists is paramount to their timely and accurate diagnosis. When treating pouch patients, radiologists should be familiar with regular pouch anatomy and its appearance in imaging studies, as well as with the most common complications that can occur in this population. In this review, we examine the clinical decision-making process at each step before and after pouch creation, as well as the most common complications associated with pouch surgery, their diagnosis, and their management.
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Affiliation(s)
- Marianna Maspero
- Department of Colorectal Surgery, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Tracy L Hull
- Department of Colorectal Surgery, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH, 44195, USA.
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Lin H, Bai Z, Meng F, Wu Y, Luo L, Shukla A, Yoshida EM, Guo X, Qi X. Epidemiology and Risk Factors of Portal Venous System Thrombosis in Patients With Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis. Front Med (Lausanne) 2021; 8:744505. [PMID: 35111772 PMCID: PMC8801813 DOI: 10.3389/fmed.2021.744505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 12/09/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Patients with inflammatory bowel disease (IBD) may be at risk of developing portal venous system thrombosis (PVST) with worse outcomes. This study aims to explore the prevalence, incidence, and risk factors of PVST among patients with IBD. METHODS PubMed, Embase, and Cochrane Library databases were searched. All the eligible studies were divided according to the history of colorectal surgery. Only the prevalence of PVST in patients with IBD was pooled if the history of colorectal surgery was unclear. The incidence of PVST in patients with IBD after colorectal surgery was pooled if the history of colorectal surgery was clear. Prevalence, incidence, and risk factors of PVST were pooled by only a random-effects model. Subgroup analyses were performed in patients undergoing imaging examinations. Odds ratios (ORs) with 95% CIs were calculated. RESULTS A total of 36 studies with 143,659 patients with IBD were included. Among the studies where the history of colorectal surgery was unclear, the prevalence of PVST was 0.99, 1.45, and 0.40% in ulcerative colitis (UC), Crohn's disease (CD), and unclassified IBD, respectively. Among the studies where all the patients underwent colorectal surgery, the incidence of PVST was 6.95, 2.55, and 3.95% in UC, CD, and unclassified IBD after colorectal surgery, respectively. Both the prevalence and incidence of PVST became higher in patients with IBD undergoing imaging examinations. Preoperative corticosteroids therapy (OR = 3.112, 95% CI: 1.017-9.525; p = 0.047) and urgent surgery (OR = 1.799, 95% CI: 1.079-2.998; p = 0.024) are significant risk factors of PVST in patients with IBD after colorectal surgery. The mortality of patients with IBD with PVST after colorectal surgery was 4.31% (34/789). CONCLUSION PVST is not rare, but potentially lethal in patients with IBD after colorectal surgery. More severe IBD, indicated by preoperative corticosteroids and urgent surgery, is associated with a higher risk of PVST after colorectal surgery. Therefore, screening for PVST by imaging examinations and antithrombotic prophylaxis in high-risk patients should be actively considered. SYSTEMATIC REVIEW REGISTRATION Registered on PROSPERO, Identifier: CRD42020159579.
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Affiliation(s)
- Hanyang Lin
- Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), Shenyang, China
- China Medical University, Shenyang, China
| | - Zhaohui Bai
- Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), Shenyang, China
- Shenyang Pharmaceutical University, Shenyang, China
| | - Fanjun Meng
- Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), Shenyang, China
| | - Yanyan Wu
- Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), Shenyang, China
- Jinzhou Medical University, Jinzhou, China
| | - Li Luo
- Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), Shenyang, China
- Jinzhou Medical University, Jinzhou, China
| | - Akash Shukla
- Department of Gastroenterology, King Edward Memorial Hospital and Seth Gordhandas Sunderdas Medical College, Mumbai, India
| | - Eric M. Yoshida
- Division of Gastroenterology, Vancouver General Hospital, Vancouver, BC, Canada
| | - Xiaozhong Guo
- Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), Shenyang, China
- Xiaozhong Guo
| | - Xingshun Qi
- Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), Shenyang, China
- *Correspondence: Xingshun Qi
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