scholarly journals Faecal Calprotectin as A Diagnostic Marker of Inflammatory Bowel Disease in Patients with Gastrointestinal Symptoms - is It Cost-Effective Procedure in Primary Care in Poland?

2016 ◽  
Vol 19 (7) ◽  
pp. A696
Author(s):  
P Petryszyn ◽  
A Trznadel ◽  
A Staniak ◽  
M Well ◽  
P Ekk-Cierniakowski
Keyword(s):  
Primary Care ◽  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Diagnostic Marker ◽  
Gastrointestinal Symptoms ◽  
Cost Effective ◽  
Effective Procedure ◽  
Faecal Calprotectin ◽  
Inflammatory Bowel

Primary care faecal calprotectin testing in children with suspected inflammatory bowel disease: a diagnostic accuracy study

2020 ◽  
Vol 105 (10) ◽  
pp. 957-963
Author(s):  
Gareth J Walker ◽  
Neil Chanchlani ◽  
Amanda Thomas ◽  
Simeng Lin ◽  
Lucy Moore ◽  
...  
Keyword(s):  
Primary Care ◽  
Inflammatory Bowel Disease ◽  
Diagnostic Accuracy ◽  
Bowel Disease ◽  
Predictive Value ◽  
Secondary Care ◽  
Gastrointestinal Symptoms ◽  
Healthcare Utilisation ◽  
Faecal Calprotectin ◽  
Inflammatory Bowel

ObjectiveTo determine the diagnostic accuracy of calprotectin to diagnose inflammatory bowel disease (IBD) in children in whom general practitioners (GPs) suspected IBD.DesignProspective observational cohort study of a new calprotectin-based primary care referral pathway.Setting48 GP practices and gastroenterology secondary care services at the Royal Devon and Exeter NHS Foundation Trust in the South-West of England, UK.Patients195 children aged between 4 and 18 years referred on the pathway between January 2014 and August 2017 for investigation of gastrointestinal symptoms were included.InterventionsPrimary-care-driven faecal calprotectin testing. Primary and secondary care records over 12 months from the point of calprotectin testing were used as the reference standard.Main outcome measuresDiagnostic accuracy of calprotectin testing to detect IBD.Results7% (13/195) tested patients were diagnosed with IBD. Using our prespecified cut-off of 100 µg/g, calprotectin had a diagnostic accuracy of 91% (95% CI 86% to 95%) with a sensitivity for distinguishing IBD from non-IBD of 100% (95% CI 75% to 100%), a specificity of 91% (95% CI 85% to 94%), a positive predictive value of 43% (95% CI 25% to 63%) and a negative predictive value of 100% (95% CI 98% to 100%). Calprotectin testing had no effect on the time to diagnosis, but a negative test contributed to saved referrals and was associated with fewer diagnostic tests in secondary care.ConclusionsCalprotectin testing of children with suspected IBD in primary care accurately distinguishes IBD from a functional gut disorder, reduces secondary care referrals and associated diagnostic healthcare utilisation.

scholarly journals Cost-effectiveness of faecal calprotectin used in primary care in the diagnosis of inflammatory bowel disease

BMJ Open ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. e027043 ◽  
Author(s):  
Wei Zhang ◽  
Chiew Hsia Wong ◽  
Mallory Chavannes ◽  
Tima Mohammadi ◽  
Greg Rosenfeld
Keyword(s):  
Primary Care ◽  
Inflammatory Bowel Disease ◽  
Cost Effectiveness ◽  
Bowel Disease ◽  
Blood Test ◽  
Gastrointestinal Symptoms ◽  
Cost Effective ◽  
Adult Patients ◽  
Standard Practice ◽  
Inflammatory Bowel

ObjectiveInflammatory bowel disease (IBD) is a chronic, autoimmune, gastrointestinal disorder. Canada has one of the highest prevalence and incidence rates of IBD in the world. Diagnosis is challenging due to the similarity of symptoms to functional gastrointestinal disorders. Faecalcalprotectin (FC) is a biomarker for active mucosal inflammation and has proven effective in the diagnosis of IBD. Our study objective was to assess the cost-effectiveness of adding an FC test compared with standard practice (blood test) in primary care among adult patients presenting with gastrointestinal symptoms.DesignWe constructed a decision analytic tree with a 1-year time horizon. The cut-off level of 100 µg/g was used for FC testing. Probabilistic analyses were conducted for the base case and all scenarios.SettingCanadian health sector perspective.PopulationA hypothetical cohort of adult patients presenting with gastrointestinal symptoms in the primary care setting.InterventionsFC test compared with blood test.Main outcome measuresCosts, quality-adjusted life years (QALYs), incremental cost-effectiveness ratio (ICER) of FC test expressed as cost per QALY gained compared with blood test and time to IBD diagnosis.ResultsFC testing is expected to cost more ($C295.1 vs $C273.9) than standard practice but yield little higher QALY (0.751vs0.750). The ICER of FC test was $C20 323 per QALY. Probabilistic analysis demonstrated that at a willingness-to-pay threshold of $C50 000 per QALY, there was 81.3% probability of FC test being cost-effective. The use of FC test in primary care reduced the time to IBD diagnosis by 40.0 days (95% CI 16.3 to 65.3 days), compared with blood testing alone.ConclusionsBased on this analysis of short-term outcomes, screening adult patients in primary care using FC test at a cut-off level of 100 µg/g is expected to be cost-effective in Canada.

scholarly journals Faecal calprotectin to detect inflammatory bowel disease: a systematic review and exploratory meta-analysis of test accuracy

BMJ Open ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. e027428 ◽  
Author(s):  
Karoline Freeman ◽  
Brian H Willis ◽  
Hannah Fraser ◽  
Sian Taylor-Phillips ◽  
Aileen Clarke
Keyword(s):  
Systematic Review ◽  
Primary Care ◽  
Inflammatory Bowel Disease ◽  
Sensitivity And Specificity ◽  
Bowel Disease ◽  
Secondary Care ◽  
Meta Analysis ◽  
Test Accuracy ◽  
Faecal Calprotectin ◽  
Inflammatory Bowel

ObjectiveTest accuracy of faecal calprotectin (FC) testing in primary care is inconclusive. We aimed to assess the test accuracy of FC testing in primary care and compare it to secondary care estimates for the detection of inflammatory bowel disease (IBD).MethodsSystematic review and meta-analysis of test accuracy using a bivariate random effects model. We searched MEDLINE, EMBASE, Cochrane Library and Web of Science until 31 May 2017 and included studies from auto alerts up until 31 January 2018. Eligible studies measured FC levels in stool samples to detect IBD in adult patients with chronic (at least 6–8 weeks) abdominal symptoms in primary or secondary care. Risk of bias and applicability were assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 criteria. We followed the protocol registered as PROSPERO CRD 42012003287.Results38 out of 2168 studies were eligible including five from primary care. Comparison of test accuracy by setting was precluded by extensive heterogeneity. Overall, summary estimates of sensitivity and specificity were not recorded. At a threshold of 50 µg/g, sensitivity from separate meta-analysis of four assay types ranged from 0.85 (95% CI 0.75 to 0.92) to 0.94 (95% CI 0.75 to 0.90) and specificity from 0.67 (95% CI 0.56 to 0.76) to 0.88 (95% CI 0.77 to 0.94). Across three different definitions of disease, sensitivity ranged from 0.80 (95% CI 0.76 to 0.84) to 0.97 (95% CI 0.91 to 0.99) and specificity from 0.67 (95% CI 0.58 to 0.75) to 0.76 (95% CI 0.66 to 0.84). Sensitivity appears to be lower in primary care and is further reduced at a revised threshold of 100 µg/g.ConclusionsConclusive estimates of sensitivity and specificity of FC testing in primary care for the detection of IBD are still missing. There is insufficient evidence in the published literature to support the decision to introduce FC testing in primary care. Studies evaluating FC testing in an appropriate primary care setting are needed.

scholarly journals Unrestricted faecal calprotectin testing performs poorly in the diagnosis of inflammatory bowel disease in patients in primary care

2017 ◽  
Vol 71 (4) ◽  
pp. 316-322 ◽  
Author(s):  
Samantha Conroy ◽  
Melissa F Hale ◽  
Simon S Cross ◽  
Kirsty Swallow ◽  
Reena H Sidhu ◽  
...  
Keyword(s):  
Primary Care ◽  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Predictive Value ◽  
Gastrointestinal Endoscopy ◽  
Faecal Calprotectin ◽  
Inflammatory Bowel ◽  
Irritable Bowel ◽  
Low Sensitivity ◽  
Single Laboratory

BackgroundFaecal calprotectin (FC) measurement distinguishes patients with inflammatory bowel disease (IBD) from those with irritable bowel syndrome but evidence of its performance in primary care is limited.AimsTo assess the yield of IBD from FC testing in primary care.MethodsRetrospective review of hospital records to assess the outcome following FC testing in primary care. Investigations for all patients undergoing FC testing in a single laboratory for 6 months from 1 October 2013 to 28 February 2014 were reviewed.Results410 patients (162 male; median age 42; range 16–91) were included. FC>50 µg/g was considered positive (FC+). 148/410 (36.1%; median age 44 (17–91)) were FC+ (median FC 116.5 µg/g (51–1770)). 122/148 FC-positive patients (82.4%) underwent further investigation. 97 (65.5%) underwent lower gastrointestinal endoscopy (LGIE), of which 7 (7.2%) had IBD. 49/262 (18.7%) FC-negative (FC−) patients (FC ≤50 µg/g) (median age 47 (19–76)) also underwent LGIE, of whom 3 (6.1%) had IBD.IBD was diagnosed in 11/410 (2.7%; 4 ulcerative colitis, 3 Crohn’s disease, 4 microscopic colitis). 8/11 were FC+ (range 67–1170) and 3 FC−. At a 50 µg/g threshold, sensitivity for detecting IBD was 72.7%, specificity 64.9%, positive predictive value (PPV) 5.41% and negative predictive value 98.9%. Increasing the threshold to 100 µg/g reduced the sensitivity of the test for detecting IBD to 54.6%.ConclusionsFC testing in primary care has low sensitivity and specificity with poor PPV for diagnosing IBD. Its use needs to be directed to those with a higher pretest probability of disease. Local services and laboratories should advise general practitioners accordingly.

scholarly journals Guidance on the interpretation of faecal calprotectin levels in children

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0246091
Author(s):  
Martina Orfei ◽  
Marco Gasparetto ◽  
Kai O. Hensel ◽  
Florian Zellweger ◽  
Robert B. Heuschkel ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Catchment Area ◽  
Gastrointestinal Symptoms ◽  
Reference Value ◽  
Cost Effective ◽  
Diagnostic Value ◽  
Older Children ◽  
Faecal Calprotectin ◽  
Blood Tests ◽  
Inflammatory Bowel

Background Faecal calprotectin (FCP) is a powerful tool to predict inflammatory bowel disease (IBD) in patients with gastrointestinal symptoms. In the paediatric patient population, the reference value of < 50 μg/g and the influence of age on FCP levels result in a high number of redundant investigations and specialist referrals. We assessed paediatric FCP levels, their diagnostic value and corresponding referral pathways from primary and secondary care. Methods We analysed two cohorts from a precisely defined catchment area: one consisted of all FCPs measured in this area (n = 2788). The second cohort—a subset of the first cohort—consisted of FCP values and corresponding clinical data from children who were referred for possible IBD to our department (n = 373). Results In the first cohort, 47% of FCP levels were > 50 μg/g, 15% were ≥ 250 μg/g. Children < 1y had significantly (p < 0.001) higher FCP than older children. In the second cohort, 6.7% of children with an FCP of < 250 μg/g (or 8.6% with an FCP of < 600 μg/g) had IBD–all featured symptoms suggestive of IBD (e.g. bloody diarrhoea, nocturnal abdominal pain, weight loss) or abnormal blood tests. 76% of patients in whom raised FCP (> 50 μg/g) was the sole reason for being referred for suspected IBD did not have IBD. Conclusion Children with an FCP < 600 μg/g and without matching symptoms suggestive of IBD are unlikely to have IBD. A higher FCP reference value may provide cost-effective improvement that could avoid redundant investigations and specialist referrals. A guideline for specialist referrals is proposed.

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