Dijagnoza
Dijagnoza celijakije
Najozbiljnija pogreška je uklanjanje glutena prije testiranja. Time se konačna dijagnoza znatno teže postavlja.
Zašto morate nastaviti jesti gluten
Celijakija se dijagnosticira otkrivanjem imunosnog odgovora na gluten i oštećenja crijeva koje on uzrokuje. Uklonite gluten i oba se povlače: antitijela padaju prema normalnim vrijednostima tijekom tjedana do mjeseci, a resice počinju oporavak. Testirate li se u tom trenutku, rezultat je neprotumačiv.
Rješenje je test opterećenja glutenom (gluten challenge) — namjerno ponovno uvođenje glutena tijekom nekoliko tjedana prije testiranja — što je dovoljno neugodno da ga mnogi odbijaju i ostaju s doživotnom restriktivnom prehranom bez dijagnoze. To je važnije nego što izgleda: bez dijagnoze možda nećete dobiti praćenje gustoće kosti, dijetetsku podršku specifičnu za celijakiju, ili, u nekoliko europskih zemalja, prava na recepte i subvencije koja uz nju idu.
Slijed testiranja
| Korak | Test | Što otkriva |
|---|---|---|
| 1 | Tkivna transglutaminaza IgA (tTG-IgA) + ukupni IgA | Probirni test. Ukupni IgA mjeri se jer njegov deficit uzrokuje lažno negativne rezultate. |
| 2 | Endomizijsko antitijelo (EMA) ako je tTG nejasan | Vrlo specifična potvrdna serologija. |
| 3 | Duodenalna biopsija, više uzoraka uključujući bulbus | Atrofija resica ocjenjuje se prema Marshevoj klasifikaciji. Mrljasta raspodjela bolesti razlog je zbog kojeg su važni brojni uzorci. |
| 4 | HLA-DQ2/DQ8 u nejasnim slučajevima | Negativan rezultat učinkovito isključuje celijakiju. |
Europske smjernice iz 2025. [2] i smjernice Američkog koledža za gastroenterologiju (ACG) slažu se u ovoj općoj strukturi, s razlikama na rubovima — posebno oko toga kada se biopsija može izostaviti.
Dijagnostički put
Potencijalna celijakija
Zbunjujuća kategorija: pozitivna serologija, normalna biopsija. Sustavni pregled i meta-analiza objavljeni u časopisu Gut ispitali su klinične ishode u ovoj skupini, što je važno jer pitanje pristupa liječenju — liječiti odmah ili pratiti — nema jednoznačan odgovor. Mnogi, iako ne svi, tijekom vremena razvijaju atrofiju resica.
Koga treba testirati
- Kronična dijareja, nadutost ili neobjašnjiv gubitak tjelesne mase.
- Anemija zbog deficita željeza bez očitog uzroka — veoma česta klinička slika, kod koje gastroenterološke smjernice posebno preporučuju testiranje na celijakiju [7].
- Srodnik prvog stupnja s celijakijom, kod kojeg je prevalencija otprilike deset puta viša od prosječne.
- Dijabetes tipa 1, autoimuna bolest štitnjače i nekoliko drugih autoimunih bolesti koje se s njom povezuju.
- Neobjašnjivo povišene transaminaze, ponavljajući aftozni ulkusi u ustima ili rana osteoporoza.
- Dermatitis herpetiformis, koji je zapravo celijakija kože i sam po sebi je dijagnostičan.
Uočite što nije na tom popisu: sama nadutost, bez ičega drugog, mnogo je češće sindrom iritabilnog crijeva — a smjernica ACG-a o zbrinjavanju IBS-a [4] relevantniji je dokument za većinu tih kliničkih slika. Celijakija i IBS toliko se preklapaju da razlikovanje uistinu zahtijeva testiranje, a ne nagađanje.
Često postavljana pitanja
Mogu li dobiti dijagnozu bez biopsije?
Koliko glutena moram jesti prije testiranja?
Jesu li testovi na antitijela za kućnu upotrebu pouzdani?
Moji testovi su negativni, ali gluten me čini bolesnim. Što sada?
Povezano štivo
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Every citation below links to the original peer-reviewed record on PubMed or via DOI. Nothing here is a substitute for medical advice.
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