Baars, J.E.

Majority of patients with inflammatory bowel disease in clinical remission have mucosal inflammation (Article)

2011-11-09T00:00:00Z

Background: Management of inflammatory bowel disease (IBD) is increasingly focused on mucosal remission. We assessed the prevalence of mucosal inflammation during clinical remission, the clinical consequences, and the impact on disease course. Methods: IBD patients from two referral centers who underwent a surveillance colonoscopy while clinically in remission between January 2001 and December 2003 were included. Follow-up ended May 1, 2009. Clinical data were collected from patient charts. Statistical analysis was performed using independent t-tests and nonparametric tests. Results: In total, 152 IBD patients were included (98 [65%] ulcerative colitis, 46 [30%] Crohn's disease; 85 [56%] males). Median follow-up was 6.8 years (interquartile range [IQR] 6-8). Forty-seven (31%) patients had no signs of inflammation during endoscopy (group A). Of the remaining 105 (68%) patients, 51 (49%) had both endoscopic and histological inflammation (group B), 51 (49%) histological inflammation only (group C), two (2%) endoscopic lesions only (group D). Two years later, 29% of all patients had endoscopic inflammation and another 27% had only microscopic inflammation. In 39% the inflammation had resolved spontaneously. Inflammation was more often found in group B+C (n = 62/102; 61%) than in group A (n = 17/47; 36%; P = 0.21). Inflammation was not associated with more frequent clinical relapses nor with stricture formation, nor with the need for surgery. Conclusions: A large proportion of IBD patients have mucosal inflammation without clinical symptoms. Although one-third recover spontaneously, mucosal inflammation in patients who are clinically in remission is associated with more severe mucosal disease activity, but not with more complications or symptomatic flares during follow-up. (Inflamm Bowel Dis 2011;)

Individualised surveillance strategies for colorectal cancer in inflammatory bowel disease (Letter To Editor)

2011-05-01T00:00:00Z

Response to sprakes and everett (Article)

2011-05-01T00:00:00Z

Small bowel carcinoma mimicking a relapse of Crohn's disease: A case series (Article)

2011-04-01T00:00:00Z

We describe three patients diagnosed and treated for presumed (relapsing) Crohn's disease, but who were subsequently diagnosed with a small bowel carcinoma. This case series underlines the necessity of performing a full work up in the diagnosis of CD and to consider small bowel carcinoma in patients with small bowel CD failing medical therapy.

Malignant transformation of perianal and enterocutaneous fistulas is rare: Results of 17 years of follow-up from the Netherlands (Article)

2011-03-01T00:00:00Z

Objective. Malignant transformation of fistulas has been observed, particularly in perianal fistulas in Crohn's disease (CD) patients. The prevalence of adenocarcinoma in enterocutaneous fistulas and non-CD-related fistulas, however, is unknown. We investigated adenocarcinoma originating from perianal and enterocutaneous fistulas in both CD patients and non-CD patients from nine large, mostly tertiary referral, hospitals in The Netherlands. Methods. Patients suffering from fistulizing disease and either dysplasia or adenocarcinoma between January 1990 and January 2007 were identified using the nationwide automated pathology database (PALGA). Clinical and histopathological data were collected and verified using hospital patient-charts and reported by descriptive statistics. The total CD-population comprised 6058 patients. Results. In a study-period of 17 years, 2324 patients with any fistula were reported in PALGA. In 542 patients, dysplasia or adenocarcinoma was also mentioned. After initial review and additional detailed chart review, 538 patients were excluded, mainly because the adenocarcinoma was not related to the fistula. In the remaining four patients, all suffering from CD, adenocarcinoma originating from the fistula-tract was confirmed. The malignancies developed 25 years (IQR 10-38) after CD diagnosis, and 10 years (IQR 6-22) after fistula diagnosis. Median age at time of adenocarcinoma diagnosis was 48.3 years (IQR 43-58). Only one patient had clinical symptoms indicative for adenocarcinoma. In three other patients, the adenocarcinoma was found coincidently. Conclusions. Adenocarcinoma complicating perianal or enterocutaneous fistula-tracts is a rare finding. Only 4 out of 6058 CD patients developed a fistula-associated adenocarcinoma. We could not identify any malignant transformations in non-CD-related fistulas in our 17 years study-period.

A short course of corticosteroids prior to surveillance colonoscopy to decrease mucosal inflammation in inflammatory bowel disease patients: Results from a randomized controlled trial (Article)

2010-12-01T00:00:00Z

Background: Inflammation is a known pitfall of surveillance colonoscopy for inflammatory bowel disease (IBD) as it is difficult to differentiate between inflammation and true dysplasia. This randomized controlled trial assessed the effectiveness of a low dose of corticosteroids prior to surveillance colonoscopy to decrease mucosal inflammation. Methods: IBD-patients scheduled for surveillance colonoscopy between July 2008-January 2010 were eligible to participate. Patients were randomized to either two weeks daily 20. mg prednisone and calcium plus vitamin D prior to surveillance colonoscopy or no treatment. All biopsies were reviewed by an expert gastrointestinal pathologist who was blinded for medication-use. Statistics were performed using chi-square tests, non-parametric tests and binary logistic regression. Results: Sixty patients (M/F 30/30, UC/CD 31/29) participated: 31 (52%) in the treatment arm and 29 (48%) in the control group. In the treatment arm, 247 biopsies were scored against 262 in the control group. In the treatment arm 27 out of 247 biopsies (10.9%) had a score > 1 on the Geboes scale, against 50 out of 262 biopsies (19.1%) in the control group, p = 0.013. In total, 58% of the treatment arm against 66% of the control group had endoscopic or histological mucosal inflammation (p = 0.6). There was a trend for patients in the treatment arm to have less severe inflammation compared with the control group, however this was not significant (p = 0.12). Conclusions: In our cohort, a short course of corticosteroids decreases the overall histological disease activity in individual biopsies without major side-effects. Moreover, there is a trend for corticosteroids to decrease the maximum severity of both endoscopic and histological disease activity per patient.

The Risk of Inflammatory Bowel Disease-Related Colorectal Carcinoma Is Limited: Results From a Nationwide Nested Case-Control Study (Article)

2010-11-02T00:00:00Z

OBJECTIVES:The risk for inflammatory bowel disease (IBD)-related colorectal cancer (CRC) remains a matter of debate. Initial reports mainly originate from tertiary referral centers, and conflict with more recent studies. Overall, epidemiology of IBD-related CRC is relevant to strengthen the basis of surveillance guidelines. We performed a nationwide nested case-control study to assess the risk for IBD-related CRC and associated prognostic factors in general hospitals.METHODS:IBD patients diagnosed with CRC between January 1990 and July 2006 in 78 Dutch general hospitals were identified as cases, using a nationwide automated pathology database. Control IBD patients without CRC were randomly selected. Clinical data were collected from detailed chart review. Poisson regression analysis was used for univariable and multivariable analyses.RESULTS:A total of 173 cases were identified through pathology and chart review and compared with 393 controls. The incidence rate of IBD-related CRC was 0.04%. Risk factors for IBD-related CRC were older age, concomitant primary sclerosing cholangitis (PSC, relative ratio (RR) per year duration 1.05; 95% confidence interval (CI) 1.01-1.10), pseudopolyps (RR 1.92; 95% CI 1.28-2.88), and duration of IBD (RR per year 1.04; 95% CI 1.02-1.05). Using immunosuppressive therapy (odds ratio (OR) 0.3; 95% CI 0.16-0.56, P<0.001) or anti-tumor necrosis factor (TNF) (OR 0.09; 95% CI 0.01-0.68, P<0.02) was protective.CONCLUSIONS:We found a limited risk for developing IBD-related CRC in The Netherlands. Age, duration of PSC and IBD, concomitant pseudopolyps, and use immunosuppressives or anti-TNF were strong prognostic factors in general hospitals.Am J Gastroenterol advance online publication, 2 November 2010; doi:10.1038/ajg.2010.428.

Inflammatory bowel disease-patients are insufficiently educated about the basic characteristics of their disease and the associated risk of colorectal cancer (Article)

2010-11-01T00:00:00Z

Background/aim: Limited data are available about inflammatory bowel disease-patients' knowledge of disease and associated risks. We assessed patients' knowledge of disease and its associated risks/complications, and their perspectives on current recommendations for colectomy when low-grade dysplasia is found. Methods: Inflammatory bowel disease-patients at a regional patient-information-day were asked to anonymously complete a survey (group-A). A 2nd group was recruited online through the Dutch inflammatory bowel disease-patients' association (group-B). Results: In group-A, 109 inflammatory bowel disease-patients completed the survey (76% Crohn's disease, 24% ulcerative colitis, 78% female). Thirty-three patients (30%) were unaware of their disease-localization; 30% thought inflammatory bowel disease shortened their life-expectancy; 26% thought it was likely for a severe complication to occur during colonoscopy. Patients estimated their 10-year colorectal carcinoma-risk at 25%. Mean perceived colorectal carcinoma-associated mortality-risk was 13%. Patients would agree to colectomy if their current colorectal carcinoma-risk was at least 53% and 70% would refuse physicians' recommendation for colectomy if dysplasia were detected with a 20% risk of concomitant colorectal carcinoma. Group-B (n=393 inflammatory bowel disease-patients) verified the results above. However, fewer patients (52%) would refuse physicians' recommendation for colectomy, p=0.01. Conclusion: Inflammatory bowel disease-patients are ill-informed about their disease and its associated risks. Improvement of patient-education is necessary to appropriately involve patients in the decision-making process.

Patients' preferences regarding shared decision-making in the treatment of inflammatory bowel disease: Results from a patient-empowerment study (Article)

2010-01-01T00:00:00Z

Shared decision-making is gaining favor in clinical practice, although the extent to which patients want to be involved in choosing their treatment varies substantially. Because data are lacking on the preferences of patients with chronic diseases such as inflammatory bowel disease (IBD), we wanted to assess IBD patients' preferences about being involved in such decisions. Methods: Adult IBD patients were asked to anonymously complete an online survey on their preferences. Non-parametric tests (χ2) were used to determine the relationship between responses and respondents. Results: The questionnaire was completed by 1,067 patients, 617 with Crohn's disease and 450 with ulcerative colitis. Patients' mean age was 43 (SD 13.7) years; the majority were female (66%). In total, 866 patients (81%) reported it as 'very important' to be actively involved in the decision-making process, and another 177 (17%) rated it as 'quite important'. When asked how their treatment could be improved, 537 patients (50%) wanted close, equitable collaboration with their physician. This preference was significantly associated with a disease duration of ≤8 years (p = 0.03). Gender and type of IBD were not significantly associated with patients' preferences. Conclusions: This study demonstrates IBD patients' desire to be actively involved in the decision-making process. Further research is needed on physicians' perspectives on shared decision-making, and on finding predictive factors for developing a model for shared decision-making in IBD. Copyright

Patient's perspectives important for early anti-tumor necrosis factor treatment in inflammatory bowel disease (Article)

2009-03-01T00:00:00Z

Background/Aim: We hypothesized that limited information is given to patients on the risks and benefits of individual therapy, and feedback is lacking to verify if patients correctly interpreted the given information. We assessed the perspectives of patients with inflammatory bowel disease (IBD) concerning the treatment-associated risks/benefits of infliximab. Methods: Patients were asked to complete a survey regarding the benefits and risks of infliximab. Results are reported as descriptive statistics. Comparisons between groups were analyzed using independent t tests and the Kruskal-Wallis test. Results: In total, 152 IBD patientscompleted the questionnaire. Fifty-seven percent (78/138) estimated the 1-year remission rate from infliximab to be >50%. Seventy-one percent (104/146) indicated they would not take a drug with risks reflecting those estimated for infliximab if the 1-year remission rate was <75%. Crohn's disease patients and those recalling a discussion regarding the risks/benefits of infliximab treatment had higher estimates of the 1-year remission rate with infliximab than ulcerative colitis patients (p = 0.03) and patients who did not recall previous information (p = 0.03). Perceptions were independent of age and disease duration. Conclusion: IBD patients misperceive the risks and benefits of infliximab. The majority of patients would not accept treatment-related risks if the 1-year remission rate was <75%. Counseling on treatment-associated risks and benefits should be ameliorated.