Inflammatory Bowel Disease Center, The University of Chicago Medicine, Chicago, IL, USA
© Copyright 2021. Korean Association for the Study of Intestinal Diseases. All rights reserved.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Funding Source
The authors received no financial support for the research, authorship, and/or publication of this article.
Conflict of Interest
Rubin DT has received grant support from Takeda, and has served as a consultant for Abbvie, Abgenomics, Allergan Inc., Boehringer Ingelheim Ltd., Bristol-Myers Squibb, Celgene Corp/Syneos, Check-cap, Dizal Pharmaceuticals, GalenPharma/Atlantica, Genentech/Roche, Gilead Sciences, Ichnos Sciences S.A., GlaxoSmithKline Services, Janssen Pharmaceuticals, Lilly, Narrow River Mgmt, Pfizer, Prometheus Laboratories, Reistone, Shire, Takeda, and Techlab Inc. Akiyama S and Rai V report no conflicts of interest.
Rubin DT is an editorial board member of the journal but did not involve in the peer reviewer selection, evaluation, or decision process of this article. No other potential conflicts of interest relevant to this article were reported.
Author Contribution
Conceptualization: Akiyama S, Rubin DT. Investigation: Akiyama S, Rai V. Supervision: Rubin DT. Writing - original draft: Akiyama S. Writing - review & editing: Akiyama S, Rai V, Rubin DT. Approval of final manuscript: all authors.
Handsewn anastomosis [4,20] |
Pelvic sepsis [23] |
CD of the pouch [27] |
Preoperative CD diagnosis (intentional IPAA creation) [29] |
Postoperative CD diagnosis based on the pathological findings of colectomy samples (incidental IPAA creation) [29] |
Preoperative Clostridioides difficile infection [32,33] |
Factors | Comments |
---|---|
Primary sclerosing cholangitis (PSC) [41,42] | PSC increases the risk of acute and chronic pouchitis. [41,42] |
Backwash ileitis [39,43] | Backwash ileitis was reported as a considerable risk of developing chronic pouchitis. [39] A later prospective study showed the incidence of acute or chronic pouchitis did not differ significantly between patients with backwash ileitis and those without. [43] |
Smoking [35,47,48] | A retrospective study showed that smoking cessation may increase the risk of pouchitis. [47] A prospective study has demonstrated that current or prior history of smoking can increase the risk of acute pouchitis but be protective against the development of chronic pouchitis. [35] A meta-analysis showed the odds of pouchitis development was not significantly lower in smokers compared with non-smokers. [48] |
Extensive colitis [44,49] | Pancolitis was reported to be directly related to the development of chronic pouchitis. [44] Case-control studies showed extesive colonic disease was associated with increased risk for both acute and chronic pouchitis. [49] |
Male sex [50,51] | Male patients were found to have an increased risk for chronic pouchitis. [50,51] |
Antineutrophil cytoplasmic antibody (ANCA) [52] | A meta-analysis showed the risk of chronic pouchitis was higher in ANCA-positive patients, but the risk of acute pouchitis was unaffected by ANCA status. [52] |
Histologic findings of colectomy samples [53] | The combination of the degree of mononuclear cell infiltration (MNCI), segmental distribution of MNCI, and eosinophil infiltration in the resected total colon had a utility to predict the development of chronic pouchitis. [53] |
3-Stage ileal pouch-anal anastomosis (IPAA) [54] | A multicenter, retrospective cohort study of pouchitis in pediatric ulcerative colitis showed that 3-stage IPAA may increase the risk of pouchitis. [54] |
Nonsteroidalanti-inflammatorydrugs(NSAIDs) [46,49] | NSAIDs was reported to increase the risk of pouchitis.46 Case-control studies showed postoperative use of NSAIDs was a risk factor for chronic pouchitis and possibly for acute pouchitis. [49] |
Treatment type | Pouch condition | Response or remission rate/duration of treatment | Primary outcome | Dose |
---|---|---|---|---|
Oral antibiotics (ciprofloxacin or metronidazole) [55] | Acute pouchitis | 96%/up to 14 days | Response to oral antibiotics determined by resolution of symptoms. | Metronidazole 250 mg three times daily for 7 days. Metronidazole was switched to ciprofloxacin 500 mg twice a day for 7 days if patients failed metronidazole or had its side effects. |
Oral antibiotics (ciprofloxacin and metronidazole) [60] | Chronic pouchitis | 82%/28 days | Remission defined as a combination of PDAI clinical score of ≤ 2, endoscopic score of ≤ 1 and total score of ≤ 4. | A combination of metronidazole 400 or 500 mg twice daily, and ciprofloxacin 500 mg twice daily for 28 days |
Oral budesonide [62] | Chronic pouchitis | 75%/8 weeks | Remission defined as a combination of PDAI clinical score of ≤ 2, endoscopic score of ≤ 1 and total score of ≤ 4. | 9 mg/day for 8 weeks |
Infliximab [69] | Chronic pouchitis | 84%a/8 weeks | Complete response defined as cessation of diarrhea and urgency. PR defined as marked clinical improvement but persisting symptoms. | 5 mg/kg at weeks 0, 2, 6, then every 8 weeks |
45%a/52 weeks | ||||
Vedolizumab [79] | Chronic pouchitis | 40.7%/3 months | Clinical response defined as any improvement in symptoms including a decrease in bowel movements, pain, or fistula drainage. | 300 mg at weeks 0, 2, 6, then every 4–8 weeks |
39.1%/12 months | ||||
Ustekinumab [82] | Chronic pouchitis | 50%/12.9 months (median) | Clinical response defined as any improvement in physician global assessment and the number of bowel movements per 24 hours. | One 90 mg IV loading dose infusion followed by 90 mg injections every 8 weeks |
Infliximab [83] | CD of the pouch | Short term 84.6%a/8 weeks | Short term CR defined as cessation of fistula drainage and total closure of all fistulas, or cessation of diarrhea, incontinence, and abdominal pain. Short term PR defined as a reduction in number, size, drainage, or discomfort associated with fistulas, or decrease of diarrhea and abdominal pain. Long term CR defined as maintenance of remission. Long term PR defined as maintenance of a partial clinical improvement. | 5 mg/kg at weeks 0, 2, 6, then every 8 weeks |
Long term 54.2%a/21.5 months (median) | ||||
Vedolizumab [79] | CD of the pouch | 57.1%/3 months | Clinical response defined as any improvement in symptoms including a decrease in bowel movements, pain, or fistula drainage. | 300 mg at weeks 0, 2, 6, then every 4-8 weeks |
48.9%/12 months | ||||
Ustekinumab [85] | CD of the pouch | 83%/6 months | Clinical response defined as any improvement in symptoms including a decrease in bowel movements, pain, or fistula drainage. | Weight-based IV infusion, then 90 mg injections every 8 weeks |
Handsewn anastomosis [4,20] |
Pelvic sepsis [23] |
CD of the pouch [27] |
Preoperative CD diagnosis (intentional IPAA creation) [29] |
Postoperative CD diagnosis based on the pathological findings of colectomy samples (incidental IPAA creation) [29] |
Preoperative Clostridioides difficile infection [32,33] |
Factors | Comments |
---|---|
Primary sclerosing cholangitis (PSC) [41,42] | PSC increases the risk of acute and chronic pouchitis. [41,42] |
Backwash ileitis [39,43] | Backwash ileitis was reported as a considerable risk of developing chronic pouchitis. [39] A later prospective study showed the incidence of acute or chronic pouchitis did not differ significantly between patients with backwash ileitis and those without. [43] |
Smoking [35,47,48] | A retrospective study showed that smoking cessation may increase the risk of pouchitis. [47] A prospective study has demonstrated that current or prior history of smoking can increase the risk of acute pouchitis but be protective against the development of chronic pouchitis. [35] A meta-analysis showed the odds of pouchitis development was not significantly lower in smokers compared with non-smokers. [48] |
Extensive colitis [44,49] | Pancolitis was reported to be directly related to the development of chronic pouchitis. [44] Case-control studies showed extesive colonic disease was associated with increased risk for both acute and chronic pouchitis. [49] |
Male sex [50,51] | Male patients were found to have an increased risk for chronic pouchitis. [50,51] |
Antineutrophil cytoplasmic antibody (ANCA) [52] | A meta-analysis showed the risk of chronic pouchitis was higher in ANCA-positive patients, but the risk of acute pouchitis was unaffected by ANCA status. [52] |
Histologic findings of colectomy samples [53] | The combination of the degree of mononuclear cell infiltration (MNCI), segmental distribution of MNCI, and eosinophil infiltration in the resected total colon had a utility to predict the development of chronic pouchitis. [53] |
3-Stage ileal pouch-anal anastomosis (IPAA) [54] | A multicenter, retrospective cohort study of pouchitis in pediatric ulcerative colitis showed that 3-stage IPAA may increase the risk of pouchitis. [54] |
Nonsteroidalanti-inflammatorydrugs(NSAIDs) [46,49] | NSAIDs was reported to increase the risk of pouchitis.46 Case-control studies showed postoperative use of NSAIDs was a risk factor for chronic pouchitis and possibly for acute pouchitis. [49] |
Treatment type | Pouch condition | Response or remission rate/duration of treatment | Primary outcome | Dose |
---|---|---|---|---|
Oral antibiotics (ciprofloxacin or metronidazole) [55] | Acute pouchitis | 96%/up to 14 days | Response to oral antibiotics determined by resolution of symptoms. | Metronidazole 250 mg three times daily for 7 days. Metronidazole was switched to ciprofloxacin 500 mg twice a day for 7 days if patients failed metronidazole or had its side effects. |
Oral antibiotics (ciprofloxacin and metronidazole) [60] | Chronic pouchitis | 82%/28 days | Remission defined as a combination of PDAI clinical score of ≤ 2, endoscopic score of ≤ 1 and total score of ≤ 4. | A combination of metronidazole 400 or 500 mg twice daily, and ciprofloxacin 500 mg twice daily for 28 days |
Oral budesonide [62] | Chronic pouchitis | 75%/8 weeks | Remission defined as a combination of PDAI clinical score of ≤ 2, endoscopic score of ≤ 1 and total score of ≤ 4. | 9 mg/day for 8 weeks |
Infliximab [69] | Chronic pouchitis | 84% |
Complete response defined as cessation of diarrhea and urgency. PR defined as marked clinical improvement but persisting symptoms. | 5 mg/kg at weeks 0, 2, 6, then every 8 weeks |
45% |
||||
Vedolizumab [79] | Chronic pouchitis | 40.7%/3 months | Clinical response defined as any improvement in symptoms including a decrease in bowel movements, pain, or fistula drainage. | 300 mg at weeks 0, 2, 6, then every 4–8 weeks |
39.1%/12 months | ||||
Ustekinumab [82] | Chronic pouchitis | 50%/12.9 months (median) | Clinical response defined as any improvement in physician global assessment and the number of bowel movements per 24 hours. | One 90 mg IV loading dose infusion followed by 90 mg injections every 8 weeks |
Infliximab [83] | CD of the pouch | Short term 84.6% |
Short term CR defined as cessation of fistula drainage and total closure of all fistulas, or cessation of diarrhea, incontinence, and abdominal pain. Short term PR defined as a reduction in number, size, drainage, or discomfort associated with fistulas, or decrease of diarrhea and abdominal pain. Long term CR defined as maintenance of remission. Long term PR defined as maintenance of a partial clinical improvement. | 5 mg/kg at weeks 0, 2, 6, then every 8 weeks |
Long term 54.2% |
||||
Vedolizumab [79] | CD of the pouch | 57.1%/3 months | Clinical response defined as any improvement in symptoms including a decrease in bowel movements, pain, or fistula drainage. | 300 mg at weeks 0, 2, 6, then every 4-8 weeks |
48.9%/12 months | ||||
Ustekinumab [85] | CD of the pouch | 83%/6 months | Clinical response defined as any improvement in symptoms including a decrease in bowel movements, pain, or fistula drainage. | Weight-based IV infusion, then 90 mg injections every 8 weeks |
CD, Crohn’s disease; IPAA, ileal pouch-anal anastomosis.
The rate of patients who experienced CR and PR. PDAI, pouchitis disease activity index; PR, partial response; CD, Crohn’s disease; CR, complete response; IV, intravenous.