Profile of pediatric Crohn's disease in Belgium

AIM

A Belgian registry for pediatric Crohn's disease, BELCRO, was created. This first report aims at describing disease presentation and phenotype and determining associations between variables at diagnosis and registration in the database.

METHODS

Through a collaborative network, children with previously established Crohn's disease and newly diagnosed children and adolescents (under 18 y of age) were recruited over a 2 year period. Data were collected by 23 centers and entered in a database. Statistical association tests analyzed relationships between variables of interest at diagnosis.

RESULTS

Two hundred fifty-five patients were included. Median age at diagnosis was 12.5 y (range: 1.6-18 y); median duration of symptoms prior to diagnosis was 3 m (range: 1-12 m). Neonatal history and previous medical history did not influence disease onset nor disease behavior. Fifty three % of these patients presented with a BMI z-score < -1. CRP was an independent predictor of disease severity. Steroids were widely used as initial treatment in moderate to severe and extensive disease. Over time, immunomodulators and biological were prescribed more frequently, reflecting a lower prescription rate for steroids and 5-ASA. A positive family history was the sole significant determinant for earlier use of immunosuppression.

CONCLUSION

In Belgium, the median age of children presenting with Crohn's disease is 12.5 y. Faltering growth, extensive disease and upper GI involvement are frequent. CRP is an independent predictive factor of disease activity. A positive family history appears to be the main determinant for initial treatment choice.

Nutritional screening strategy in nonagenarians: the value of the MNA-SF (mini nutritional assessment short form) in NutriAction

OBJECTIVES

To identify older subjects at risk of malnutrition using the most appropriate tool available for the specific setting and to evaluate the Mini Nutritional Assessment short form (MNA-SF) in a sample of nonagenarians.

DESIGN

Questionnaire based national screening week for the risk and prevalence of malnutrition in older people (NutriAction).

SETTING

Older people in the community (CD) and in nursing homes (NH).

PARTICIPANTS

General practices (n=70) and Nursing Homes (n=70).

MEASUREMENTS

Questionnaire based on items from validated screening instruments: the MNA-SF, the Short Nutritional Assessment Questionnaire (SNAQ) and additional clinically relevant parameters (mobility, independence, social isolation and co-morbidities).

RESULTS

In total 5,334 people were screened of which 16% were aged over 90 years. In this age group, 66% of the screened individuals were at risk of malnutrition (MNA ≤ 11), and women were affected significantly more than men (p<0.001). Actual malnutrition was present in 22% (BMI <20), 20% (SNAQ) and 25% (clinical evaluation). The MNA appeared to be very sensitive but had a low specificity as well in the nonagenarians (98% and 44%) as in the younger old (97% and 52%). The SNAQ was not a sensitive tool for detecting malnutrition in this study population (25%). Although clinical impression had a low sensitivity (60-61%) it has a good specificity (86% in 90+ and 91% below 90yr).

CONCLUSION

The overall risk of and the prevalence of malnutrition is common in older people. The prevalence is higher in women, in nursing homes and in older age groups. The MNA-SF followed by a clinical subjective evaluation seems to be the preferred strategy for detecting malnutrition in nonagenarians.

Safety and cost of infliximab for the treatment of Belgian pediatric patients with Crohn's disease

Biologicals have become an important component in the treatment of Crohn's disease in children. Their increased and long term use raises safety concerns. We describe safety and cost of infliximab in Belgian pediatric Crohn's disease patients. All patients on infliximab as part of the present or past treatment for Crohn's Disease until January 1st 2011 were selected from an existing database. Information on disease phenotype, medication and adverse events were extracted. Adverse events occurred in 25.9% of patients exposed to infliximab of which 29.6% were severe. In total 31.7% of patients stopped infliximab therapy. The main reasons for discontinuation were adverse events in 45.4% and loss of response in 30.3%. No malignancies or lethal complications occurred over this 241 patient year observation period. Immunomodulators were concomitant medication in 75% of patients and were discontinued subsequently in 38.4% of them. The cost of infliximab infusions per treated patient per year in the Belgian health care setting is approximately 9 474 euro, including only medication and hospital related costs. Even though infliximab is relatively safe in pediatric CD on the short term, close follow-up and an increased awareness of the possible adverse reactions is highly recommended. Adverse reactions appeared in 25.9% of all patients and were the main reason for discontinuation. Treatment cost has to be balanced against efficacy and modifications in disease course. In the Belgian health care system, the medication is available to all patients with moderate to severe CD.

Percutaneous endoscopic jejunostomy in patients with gastroparesis following lung transplantation: feasibility and clinical outcome

The aim of the present study was to describe success rates, complications, and outcome in patients who underwent percutaneous endoscopic jejunostomy (PEJ) because of gastroparesis due to previous lung transplantation. Between October 2008 and May 2011, 14 attempts at PEJ placement were made in 12 patients in our center. Of the 14 attempts, 11 were successful, giving a technical success rate of 78.6 %. Median duration of followup was8.5 months (2–15 months). No immediate complications were reported. Two severe complications occurred during follow up (one volvulus and one jejunocolic fistula). Jejunal nutrition was well tolerated in most of patients (9 /10). PEJ insertion is a feasible technique, which could help to provide nutritional support for patients with gastroparesis and previous lung transplantation.

Colon capsule endoscopy: European Society of Gastrointestinal Endoscopy (ESGE) Guideline

PillCam colon capsule endoscopy (CCE) is an innovative noninvasive, and painless ingestible capsule technique that allows exploration of the colon without the need for sedation and gas insufflation. Although it is already available in European and other countries, the clinical indications for CCE as well as the reporting and work-up of detected findings have not yet been standardized. The aim of this evidence-based and consensus-based guideline, commissioned by the European Society of Gastrointestinal Endoscopy (ESGE) is to furnish healthcare providers with a comprehensive framework for potential implementation of this technique in a clinical setting.

The importance of upper gastrointestinal lesions detected with capsule endoscopy in patients with obscure digestive bleeding

STUDY AIMS

Small bowel capsule endoscopy (SBCE) is the first line procedure for detecting small bowel lesions in patients with an obscure gastrointestinal bleeding (OGIB). Missed upper gastrointestinal (UGI) lesions at the initial endoscopy may account for the so-called OGIB. This retrospective study was designed to assess the role of SBCE in detecting missed UGI lesions.

METHODS

All consecutive SBCE that were performed in the last year for patients with OGIB were included in our study. We evaluated the visibility of the gastric mucosa, the anatomic landmarks, the presence of UGI lesions as well as their clinical importance. The SBCE findings were compared with the reports of previous UGI endoscopies.

RESULTS

118 patients (45 males, 73 females, mean age 61 +/- 19 years) were included in the analysis. The indication for SBCE was obscure overt and occult OGIB in 60 and in 58 patients, respectively. SBCE identified lesions in the small bowel in 42% of the patients. An excellent visibility of gastric mucosa was observed in 83/118 cases (703%). SBCE identified gastric lesions with potential clinical significance (high bleed potential) in 25/118 (21.2%) patients. In 12/118 (10.2%) patients the UGI lesions detected by SBCE were considered as the only potential source of bleeding.

CONCLUSIONS

In patients with OGIB, SBCE detected not only small bowel lesions but also significant UGI lesions that were missed or underestimated at the initial endoscopy in 21% of cases. It is therefore necessary to carefully read the gastric images when performing an SBCE.

Familial adenomatous polyposis: clinical presentation, detection and surveillance

Colorectal cancer (CRC) is a leading cause of cancer related death in the western countries. It remains an important health problem, often under-diagnosed. The symptoms can appear very late and about 25% of the patients are diagnosed at metastatic stage. Familial adenomatous polyposis (FAP) is an inherited colorectal cancer syndrome, characterized by the early onset of hundred to thousands of adenomatous polyps in the colon and rectum. Left untreated, there is a nearly 100% cumulative risk of progression to CRC by the age of 35-40 years, as well as an increased risk of various other malignancies. CRC can be prevented by the identification of the high risk population and by the timely implementation of rigid screening programs which will lead to special medico-surgical interventions.

Buried bumper syndrome: low incidence and safe endoscopic management

AIMS

Buried bumper syndrome (BBS) is a rare long-term complication of percutaneous endoscopic gastrostomy (PEG) and consists of a progressive impaction of the inner bumper of the tube in the mucosa of gastric wall. The aim of our study was to report our own experience with BBS, focusing on its incidence and endoscopic management.

PATIENTS AND METHODS

Medical records of a large group of 879 patients having undergone PEG insertion (2002-2009) were retrospectively reviewed. All PEG's were followed by our special Nutrition Support Team. Patients presenting with BBS during their follow-up were included in the study.

RESULTS

Only eight patients (8/879; 0.9%) developed BBS, which was confirmed during gastroscopy. Median time between PEG insertion and BBS diagnosis was 22.0+/-22.28 months. Five patients underwent successful treatment with: 1) flexible guide wire insertion through the internal orifice of the PEG to define its anatomical settings, 2) cruciform incisions of the gastric mucosa with a needle-knife starting at the center of the mucosal dome covering the internal bumper, and reaching its edges, 3) extrusion and complete extraction of the inner bumper through the gastric tract. No complications were observed. Median hospital stay related to BBS lasted 4.0+/-3.67 days. In two patients with peristomal abscess and deeply migrated bumper surgery was needed.

CONCLUSIONS

Cruciform mucosal incisions with needle-knife is a safe endoscopic technique to treat the BBS that could avoid surgery in most of the cases. Preventive measures applied after PEG insertion and continued during the follow-up may result in a distinctly lower prevalence of BBS.

Guidelines for colorectal cancer screening--a puzzle of tests and strategies

Colorectal cancer (CRC) is a leading cause of cancer death around the World. An effective way to reduce colorectal cancer mortality is to screen for it and its precursor, the adenoma. In industrialized countries the mortality related to CRC is decreasing probably due to better screening programmes in average-risk individuals as well as changes in risk factors. Screening procedures are various including faecal screening tests--which primarily detect colon cancer--and structural tests (endoscopy--flexible sigmoidoscopy or colonoscopy--, Barium enema, Computed Tomography Colonography) that may detect not only cancer but also its precursors. Video-colon capsule is a new tool for exploring the colon but needs further studies before becoming a screening test. The choice of a screening test includes several factors as cost, invasiveness, acceptability, adherence to repeat testing and acceptance referral for colonoscopy for positive tests as well as local financial resources. Every screening programme has advantages and limitations. Enhancing use and quality of CRC screening programmes is mandatory.

Lessons from a 20 year experience of Home Parenteral Nutrition in adult patients

BACKGROUND

Home Parenteral Nutrition (HPN) is a method commonly used in patients with Chronic Intestinal Failure (CII) related to benign or malignant diseases. We report the experience from a 20 year programme of HPN in a single academic centre.

METHODS

In this study, we have reviewed characteristics and outcome of a group of patients enrolled in a HPN program between 1987 and 2007. Focus was given to the prevalence and severity of cholestasis in these patients as well as on their oral food behaviour.

RESULTS

In 20 years, 125 patients were included in a HPN programme; 65 patients had benign diseases (BD) and 60 advanced cancer (AC). Short bowel was the most common indications in patients with BD. Almost 40% of patients with BD were weaned off HPN. Median survival was excellent in BD patients and extremely short in AC. Death related to HPN was very rare. Cholestasis has been observed in 84% of patients but it was mild to moderate in the majority of cases. Hyperphagia was observed in 50% of the patients with BD on long-term HPN.

CONCLUSIONS

This study confirms that HPN is the first line therapy in CII due to BD. Patients with AC should be carefully selected. Cholestasis is frequent but mostly without clinical impact. Half of the patients with CII due to BD become hyperphagic allowing to reduction of parenteral intake. The role of a multidisciplinary nutrition support team is essential for optimizing HPN.

[Organized colorectal screening in French Community of Belgium and polyp surveillance]

Colorectal cancer is an important health care problem in Belgium and screening is now widely recommendend. The French Community has launched in March 2009, a campaign to build public and professional awareness of the importance of screening for colorectal cancer. With the goal of encouraging all persons age 50 to 74 to actively gain information and seek screening with the active participation of their house doctors, the campaign will work to clarify any myths or fears about screening options and ensure that the importance of screening and early detection will be understood. The program in the French Community propose guaiac-based fecal occult blood testing for average risk people and, in case of positivity a colonoscopy must be performed. A high quality colonoscopy should be offered first in case of significant personal and familial history of adenomas, colorectal cancer and some specific extracolonic neoplasia. Several strategies will be used to ensure follow up of this program and encourage wide participation of the population.

Nutrition in care homes and home care: recommendations - a summary based on the report approved by the Council of Europe

Undernutrition in home care and care home settings has been acknowledged as a situation with various causes and significant consequences on both an individual and social level. A review article exposing this problem has been recently published. Consequently, scientific experts and other stakeholders were involved in formulating recommendations to tackle undernutrition and sensitize political authorities. The forum held in Brussels and its proceedings were considered as a baseline to interview stakeholders involved in care homes and home care in order to propose solutions on different levels. A full report including guidelines was sent and accepted by the Council of Europe, and can be used as a basis for implementing strategies on a national and international level. A multidisciplinary approach is important to successfully tackle malnutrition on multiple levels: the patients, the health care workers (medical and non-medical), the public, policy makers and society stakeholders. Awareness for patients and caregivers is important; this can be obtained by information and appropriate training. Care home management and kitchen staff activities can be modified in order to promote nutrition. Policy makers should create legal frameworks to confront malnutrition as being a public health concern. Undernutrition in home care and care home settings is a considerable problem and confrontation involves a multidisciplinary approach.

Role of small-bowel endoscopy in the management of patients with inflammatory bowel disease: an international OMED-ECCO consensus

Crohn's disease and ulcerative colitis are lifelong diseases seen predominantly in the developed countries of the world. Whereas ulcerative colitis is a chronic inflammatory condition causing diffuse and continuous mucosal inflammation of the colon, Crohn's disease is a heterogeneous entity comprised of several different phenotypes, but can affect the entire gastrointestinal tract. A change in diagnosis from Crohn's disease to ulcerative colitis during the first year of illness occurs in about 10 % - 15 % of cases. Inflammatory bowel disease (IBD) restricted to the colon that cannot be characterized as either ulcerative colitis or Crohn's disease is termed IBD-unclassified (IBDU). The advent of capsule and both single- and double-balloon-assisted enteroscopy is revolutionizing small-bowel imaging and has major implications for diagnosis, classification, therapeutic decision making and outcomes in the management of IBD. The role of these investigations in the diagnosis and management of IBD, however, is unclear. This document sets out the current Consensus reached by a group of international experts in the fields of endoscopy and IBD at a meeting held in Brussels, 12-13th December 2008, organised jointly by the European Crohn's and Colitis Organisation (ECCO) and the Organisation Mondiale d'Endoscopie Digestive (OMED). The Consensus is grouped into seven sections: definitions and diagnosis; suspected Crohn's disease; established Crohn's disease; IBDU; ulcerative colitis (including ileal pouch-anal anastomosis [IPAA]); paediatric practice; and complications and unresolved questions. Consensus guideline statements are followed by comments on the evidence and opinion. Statements are intended to be read in context with qualifying comments and not read in isolation.

Maintenance therapy for ulcerative colitis has no impact on changes in the extent of ulcerative colitis

BACKGROUND AND AIM

Although the efficacy of maintenance remission therapy in ulcerative colitis (UC) has been proved in many studies, little is known about its possible effect on the extent of the disease. The aim of the present multicenter Belgian study was to evaluate the potential role of UC maintenance therapy on the colonic extension of the disease.

MATERIALS AND METHODS

A total of 98 patients, 56 males, 42 females, mean age 52 years, range 22-82 years, from 12 medical centers in Belgium, with an acute exacerbation of well-established, endoscopically and histologically proven left-sided UC, were included. The colonic extension was endoscopically determined at the time of the initial diagnosis and at the actual flare-up. The mean duration of UC was 93+72 months, median was 84 months, and range was 3-372 months. Active smoking was reported in only 7% of patients, while the majority were no-smokers (63%) or ex-smokers (30%). The median colonic extension at the time of initial diagnosis was 25 cm, range 2-70 cm from the anal merge. Sixty-six percent of the patients had quiescent disease without flare-ups during last year. The χ(2)-test was used for statistical analysis.

RESULTS

29/98 (29.6%) patients had not used any maintenance therapy in the last 3 months before the actual exacerbation. The most commonly used maintenance therapy was 5-ASA (43%), while combined therapy with 5-ASA, corticosteroids or immunosuppresives (mainly azathioprine) in all possible combinations was reported by 29.6% of patients. The extent of UC had not changed in 50.7% and 51.7% of patients, respectively, with and without maintaining therapy (NS, p=0.99). Some degree of regression was observed in, respectively, 21.7% and 20.7% (NS, p=0.99), and some degree of extension in, respectively, 27.5% and 27.6% (NS, p=0.99). Furthermore, no relationship was found between changes in colonic extent and type of maintaining therapy, smoking habits or disease activity during the last year before the acute exacerbation. A tendency of beneficial effect of maintenance therapy on disease extent was observed in patients with continuous active disease of short duration.

CONCLUSIONS

According to this multicenter study, maintenance remission therapy for left-sided UC was not found to have a statistically significant effect on colonic extension. Further long-term studies are necessary to confirm these results.

PillCam colon capsule endoscopy compared with colonoscopy for colorectal tumor diagnosis: a prospective pilot study

BACKGROUND AND AIMS

Colonoscopy is regarded as the gold standard for colorectal cancer (CRC) screening. PillCam capsule endoscopy could be an alternative approach for screening large populations. We report a pilot evaluation in humans of the safety, feasibility, and performance of colon capsule endoscopy compared with colonoscopy.

PATIENTS AND METHODS

Patients included in this single-center comparative study had presented for screening colonoscopy or there was suspicion of polyps or CRC. The capsule was ingested in the morning. After excretion, colonoscopy was performed. Significant findings were defined either as polyps > 6 mm, or three or more polyps of any size. Colonoscopy and colon capsule endoscopy (CCE) review were performed by independent physicians.

RESULTS

41 patients (26 women), mean age 56 years (range 26 - 75) were included, and all had complete colonoscopies. Four patients were excluded due to technical problems and one could not swallow the capsule; thus, 36 patients were considered in the analysis. In six the capsule had not been expelled at 10 hours and was retrieved endoscopically. CCE identified 19 of the 25 patients (76 %) with positive findings and 10 of the 13 (77 %) with significant lesions detected by colonoscopy. CCE detected seven lesions not seen at colonoscopy and two tumors were detected by both examinations. Overall sensitivity of CCE to detect significant lesions was 77 %, specificity was 70 %, positive predictive value was 59 %, and negative predictive value was 84 %. No adverse events occurred.

CONCLUSION

CCE showed promising accuracy compared with colonoscopy. This new noninvasive technique deserves further evaluation as a potential CRC screening tool.

Ethical aspects of percutaneous endoscopic gastrostomy placement for artificial nutrition and hydratation

Of the many decisions that family members and physicians must make about medical care in patients with advanced disease and perceived poor quality of life, none is more heart-wrenching than the decision about artificial nutrition and hydratation. The endoscopist often is placed in a precarious position when percutaneous endoscopic gastrostomy tube placement is requested in such patients. Clinical decision-making between the patient, the family and the physician should be consistent with legal and ethical principles. The purpose of this article is to provide an evaluation of medical and ethical issues regarding the decision on placing a percutaneous endoscopic gastrostomy tube for various indications, as well as suggesting strategies to optimize the decision-making process.

Video capsule endoscopy in small-bowel malignancy: a multicenter Belgian study

BACKGROUND AND STUDY AIMS

Early diagnosis of small-bowel tumors is crucial for therapy. Video capsule endoscopy has improved the diagnosis of small-bowel diseases, but data concerning the role of this technique in detecting small-bowel malignancy are scarce. The aim of this paper was to review all capsule endoscopy findings at Belgian hospitals, in order to evaluate the diagnostic yield of capsule endoscopy in the field of small-bowel malignancy.

PATIENTS AND METHODS

For this retrospective study, the seven Belgian academic hospitals where the device was being used were asked to review the findings obtained by means of video capsule endoscopy, and to collect information about the cases of small-bowel malignancy.

RESULTS

In total, 443 capsule endoscopies were performed up to November 2004, and 11 malignant small-bowel processes were detected (2.5%). The most frequent indications for performing capsule endoscopy in those 11 cases were intestinal bleeding of undefined origin or iron-deficiency anemia. The mean number of diagnostic procedures performed before capsule endoscopy was 3.6. The capsule endoscopy results had a diagnostic yield of 1.6% after classical work-up. In 55% of these cases, capsule endoscopy findings had an influence on therapy.

CONCLUSIONS

Tumors of the small bowel remain a rare condition. Video capsule endoscopy is able to detect tumors undiagnosed by classical procedures in about 1.6% of cases and has an impact on the therapy in 55% of the tumor cases.

Profile of soluble cytokine receptors in Crohn's disease

INTRODUCTION

Soluble cytokine receptors (sCRs) modulate the in vivo activity of cytokines. Deficient sCR production could participate in the pathogenesis and course of Crohn's disease (CD). The aim of the study was to examine the profile of sCRs in CD patients and their modulation by infliximab and corticosteroids.

METHODS

We prospectively examined active CD patients (aCD) treated with either infliximab (n = 21) or corticosteroids (n = 9), CD patients in clinical remission (rCD, n = 20), ulcerative colitis patients (UC, n = 24), and healthy subjects (HS, n = 15). Cultures of colonic biopsies were also examined from CD inflamed (n = 8), CD non-inflamed (n = 7), and healthy mucosa (n = 8). Levels of tumour necrosis factor alpha (TNF-alpha), soluble TNF receptor I (sTNFRI), soluble TNF receptor II (sTNFRII), interleukin 1beta (IL-1beta), soluble IL-1 receptor I (sIL-1RI), soluble IL-1 receptor II (sIL-1RII), IL-6, soluble IL-6 receptor (sIL-6R), and sgp130 were measured using ELISA.

RESULTS

Higher levels of sTNFRI (p<0.05, p<0.01), sTNFRII (p<0.01, p<0.01), sIL-1RI (p<0.05, NS), IL-6 (p<0.01, p<0.01), and sIL-6R (p<0.05, NS) were observed in aCD compared with rCD and HS. Interestingly, sIL-1RII (p<0.05, p<0.01) and sgp130 (p<0.01, p<0.01) were profoundly decreased in aCD compared with rCD and HS, and were negatively correlated with CRP. Deficient production of sIL-1RII was specific to CD (not observed in ulcerative colitis), and was further confirmed at the mucosal level. Infliximab decreased sTNFRII at one and four weeks (p<0.05) and enhanced sIL-6R levels at one week (p<0.05). Corticosteroids increased sIL-1RII levels at one week (p<0.05).

CONCLUSION

CD is associated with dysregulated production of sCRs. Deficiency in sIL-1RII and sgp130 may be essential to CD pathogenesis. Their replacement through the use of fusion proteins could represent future alternative therapeutic strategies for CD.

Report on the Belgian consensus meeting on colorectal cancer screening

Screening and prevention of colorectal cancer must be a public health priority. It is the most frequent malignancy in Europe, the second leading cause of cancer death, including Belgium where more than 6000 new cases occur per year. Various screening modalities, from non invasive to invasive are available and currently in use and they are all cost-effective in comparison with no screening. The decision as to which screening test to use should be made by the patient and clinician. Consensus documents prepared by the Belgian scientific community appear in this issue of Acta Gastroenterologica Belgica, summarizing the scientific evidence in favour as well as the limitations of fecal occult blood tests, flexible sigmoidoscopy, videocolonoscopy and virtual colonoscopy.

Capsule endoscopy examination of patients with obscure gastrointestinal bleeding: evaluation of clinical impact

BACKGROUND

Wireless video capsule endoscopy (WVCE) has been reported to contribute to the diagnostic management of patients with obscure gastrointestinal bleeding (OGB). Nevertheless, clinical impact data is lacking. The aim of our study was to determine the clinical outcome of patients undergoing WVCE for OGB.

PATIENTS AND METHODS

38 patients who were referred for OGB and who underwent WVCE examination were included in this study. A questionnaire was sent to the referring doctors after the capsule investigation. The following items were investigated: the final diagnosis of OGB, treatment applied and clinical outcome.

RESULTS

Data was recorded for 26 patients out of 38 (17F, 9M). The mean age was 63 years (range, 21-84). A positive finding was noted in 11 patients. Findings included small bowel lesions in 7 cases and gastroduodenal lesions in 4 cases. As a result of the capsule investigation, specific therapy was administered in 9 patients. Six of the 9 patients treated had no further anemia. Final diagnosis of OGB was in agreement with positive findings of WVCE in all these 11 patients. Among the 15 patients with a negative WVCE, 9 had a digestive lesion (3 small bowel lesions) as a final diagnosis.

CONCLUSION

Patients with a positive result at WVCE had further intervention in 82% and were successfully treated in 67% of cases. We had no false positive results in this study, which suggest a high positive predictive value of WVCE. Moreover, negative WVCE had also an indirect clinical impact.