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  • Jefferson Adams
    Jefferson Adams

    Do We Really Need Biopsies to Diagnose Celiac Disease?

    Reviewed and edited by a celiac disease expert.

    Can celiac disease be accurately detected without a biopsy?

    Do We Really Need Biopsies to Diagnose Celiac Disease? - Can blood tests alone accurately diagnose celiac disease? Photo: CC--Garland Cannon
    Caption: Can blood tests alone accurately diagnose celiac disease? Photo: CC--Garland Cannon

    Celiac.com 07/13/2017 - Until recently, duodenal biopsy was considered the gold standard for diagnosing celiac disease, but that is changing.

    A number of studies have shown that celiac disease can be diagnosed using serological tests alone, but many clinicians have yet to embrace this approach.

    Celiac.com Sponsor (A12):
    In both retrospective and prospective studies, one research team showed that certain IgA-tissue transglutaminase antibodies levels can predict celiac disease in adults 100% of the time.

    After making some adjustments to the analytical method for measuring the antibody, a team of researchers recently set out to to determine whether such serum tests can reliably diagnose celiac disease in large numbers adult patients without the need for small bowel biopsy.

    The research team included GKT Holmes, JM Forsyth, S Knowles, H Seddon, PG Hill, and AS Austin.

    They are variously associated with the Royal Derby Hospital, the Department of Pathology, and the Derby Digestive Diseases Centre at the Royal Derby Hospital in Derby, UK.

    For their study, the team conducted a retrospective analysis in an unselected series of 270 adult patients who underwent small bowel biopsies and the measurement of serum IgA-tissue transglutaminase antibody levels from 2009 to 2014.

    At an IgA-tissue transglutaminase antibody cut-off greater than 45 U/ml (>8×upper limit of normal+2SDs) the positive predictive value for celiac disease in this cohort was 100%; 40% of cases were above this cut-off.

    The team found that they could use IgA-tissue transglutaminase antibody levels to reliably diagnose celiac disease in a high proportion of these adult patients.

    This study adds to the growing body of evidence that supports the diagnosis of celiac disease without a mandatory small bowel biopsy.

    As a realist of these findings, the study team has changed the diagnostic guidelines for their center, and will now make celiac diagnosis based on cut-off levels of IgA-tissue transglutaminase.

    This is exciting news. For many, many years, the biopsy was considered the gold standard for diagnosing celiac disease.

    By eliminating biopsies in favor of IgA-tissue transglutaminase levels, diagnosing celiac disease could become much easier and even cheaper.

    Do you have celiac disease? Did you receive a biopsy for diagnosis? How do you feel about celiac diagnosis without biopsy? Share your thoughts below.

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    Guest Mindy

    Posted

    12 years ago I had low bone density. Endocrinologist did one test. tTg. Normal was 1-19 mine was 181. Proved part of why my bone density was not good at age 50. I tried to eat well but gluten was in tiny amounts in many places. I didn't know I was celiac, but never ate sandwich or pizza instinctively. I refused the "gold standard" biopsy. I don't see a need for invasive tests when I can change behavior. I am gluten-free. I don't eat gluten-free junk either. I am much better. Still work as I was undiagnosed for so long and am allergic to other things due to leaky gut. I am healthier than most. Wonder if the 25% earlier death is for celiacs that comply. Thanks for your article. I sensed I was wise but people often ask about biopsy. I am now 62.

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    Guest Mary

    I was diagnosed on blood tests alone at age 51, 6 years ago. All of my markers were off the charts high. I had been having unusual blood work for years - high platelets, elevated liver enzymes, thyroid issues, etc. The blood work was so definitive, even after 2 weeks of no gluten, that by the time I saw the gastroenterologist a month later, he did not want to reintroduce gluten and made the diagnosis on blood work - I had the full celiac panel, all markers were high.

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    Guest Lindsey

    Posted

    I was just diagnosed with celiac with the blood test - my numbers were extremely high and the doctor gave me the option to do the biopsy. He said with as high as my numbers were it wasn't really necessary if I didn't want it. I have chosen not to get the biopsy done. rnrn

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    Guest Pam Newbury

    Posted

    I am surprised to hear two people in the comments say they were "diagnosed" using a genetic test. Genetic tests for celiac disease can, in some cases, exclude a diagnosis of celiac disease, but they cannot diagnose it. One third of the population have the genetic markers for celiac disease. Only a small percentage of those will develop celiac disease. Genetic testing must be followed up by other tests. I am concerned that people are being told that testing positive for the genetic markers for celiac disease is a "diagnosis". While I think that, in some cases, a strongly positive result on celiac disease blood tests can eliminate the need for biopsy to confirm, I think that when celiac disease is suspected and tests are negative or unclear, a biopsy should always be performed. I also think there is value in knowing how badly damaged the gut is and in seeing how much healing has been done in a follow-up biopsy at a later date.

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    Susan Wood

    I was finally diagnosed in 2015. A Gastroenterologist did not do a biopsy while doing my endoscopy in 2008.  Celiac could’ve been detected 7 years before it was. A Prometheus blood test, a biopsy, and a camera capsule test were all positive for Celiac. Thankfully, the new Gastroenterologist that ordered the correct tests listened to me, and ordered all of the right tests.

    Its been a difficult journey !! 

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    Maggieinsc

    I was recently diagnosed with celiac. When my blood tests came they were so high I was certain I had it. My dr commented that it was “highly likely” based on my blood levels.
     

    Of course they told me to keep eating gluten till I had my endoscope Oct 5 2023.
    I wondered why do I need an endoscope when my blood tests were so high. Interesting to me that the latest research shows I didn’t.

    Anyway I pushed the endoscope forward from the original October 24 th date since I didn't want to eat what for me was now poison.

    When I came out from anesthesia my gi dr leaned over me and said it was positive for celiac. He didn’t need to wait for pathology results. Said no more gluten but I could go to waffle House for one last Waffle. I quipped at him there went his Christmas pound cake. Lol.

    I never did make it to Waffle House but I hear that IHOP has a great gluten free waffle. Now on my list to try one soon. 
     

    Now I am on a seek and destroy aka toss out anything that has or night be contaminated with gluten. Onward and upward!! 

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    trents

    Hi, Maggieinsc! Do you know if iHop's gluten free waffles are mixed with the same equipment, cooked on the same surfaces and handled with the same utensils as their gluten counterparts?

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    Scott Adams

    I hear IHOP puts pancake batter into their scrambled eggs...I avoid any place that would do something like that!

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    Maggieinsc
    43 minutes ago, trents said:

    Hi, Maggieinsc! Do you know if iHop's gluten free waffles are mixed with the same equipment, cooked on the same surfaces and handled with the same utensils as their gluten counterparts?

    Haven't been yet. Just heard they have them but I will ask when I go. 

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    Maggieinsc
    19 minutes ago, Scott Adams said:

    I hear IHOP puts pancake batter into their scrambled eggs...I avoid any place that would do something like that!

    Hmm I will ask when we go amout cross contamination .  I can promise u that. I think I read abt it on the Facebook Celiac page. People on that page do not eat in restaurants that are not careful when they prepare gluten-free foods. 

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    Scott Adams

    Thanks, please let us know what you find out! 

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    Maggieinsc
    3 hours ago, Scott Adams said:

    Thanks, please let us know what you find out! 

    I will!! 

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  • About Me

    Jefferson Adams

    Jefferson Adams is Celiac.com's senior writer and Digital Content Director. He earned his B.A. and M.F.A. at Arizona State University. His articles, essays, poems, stories and book reviews have appeared in numerous magazines, journals, and websites, including North American Project, Antioch Review, Caliban, Mississippi Review, Slate, and more. He is the author of more than 2,500 articles on celiac disease. His university coursework includes studies in science, scientific methodology, biology, anatomy, physiology, medicine, logic, and advanced research. He previously devised health and medical content for Colgate, Dove, Pfizer, Sharecare, Walgreens, and more. Jefferson has spoken about celiac disease to the media, including an appearance on the KQED radio show Forum, and is the editor of numerous books, including "Cereal Killers" by Scott Adams and Ron Hoggan, Ed.D.

    >VIEW ALL ARTICLES BY JEFFERSON ADAMS

     


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