[Antiendomysial antibodies: current role in the diagnosis of celiac disease compared to antigliadin antibodies].

We evaluated in parallel the action of antigliadin (AGA-IgA) and anti-endomysium (EmA) antibodies in a group of 144 coeliac patients during the various diagnostic procedures, and in 277 controls (206 affected by other gastroenterological diseases and 71 healthy or affected by non-gastroenterological diseases, not causing any immune changes). Little difference was observed between the two tests both during the initial phase of the disease and during gluten-free diet. No EmA positivity was observed in controls; AGA-IgA resulted positive in 6.3% of gastroenterological controls and in 5.6% of non-gastroenterological controls. Finally, the sensitivity, specificity and predictability of the two tests were evaluated in a sample of 92 subjects undergoing intestinal biopsy. The results show that the tests have the same sensitivity, but only for EmA 100% specificity was found.