Journal
FRONTLINE GASTROENTEROLOGY
Volume 13, Issue 1, Pages 73-76Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/flgastro-2020-101624
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Recent guidance suggests a no-biopsy protocol for adults with high tTG-IgA titres, but this approach should only be used for selected patients and not all tTG-IgA positive patients.
Recent interim guidance from the British Society of Gastroenterology, aligned to historical paediatric practice, advises a no-biopsy protocol (NBP) for adults with high anti-tissue transglutaminase (tTG-IgA) titres and other clinical factors. A 7-year retrospective review identified 433 patients with positive tTG-IgA. Of these 433, 98 (23%) fulfilled the high titre criteria for an NBP which may have reduced endoscopic burden on the service. A high titre versus low titre translated in a 95% versus 75% histological confirmation of coeliac disease (p<0.01). The addition of anti-endomysial antibody analyses impacted minimally on these predictive rates. Our data support an NBP approach for selected patients. Of concern, however, was the finding that a third of patients with positive titres were not referred for a biopsy despite national guidance at the time advocating it. A clear message needs to be transmitted that the NBP is only for those with high titre, as opposed to any tTG-IgA positivity.
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