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Celiac disease prevalence in Brazilian dilated cardiomyopathy patients
Ricardo Schmit T De Bem1, Shirley Ramos Da Ro Sa Utiyama, Renato Mitsunori Nisihara
1Service of Gastroenterology and Digestive Endoscopy, Clinical Hospital, Federal University of Paraná, Curitiba, Paraná, Brazil. ricsdebem@netpar.com.br
Insights
Screening for celiac disease (CD) in heart transplant candidates with advanced cardiomyopathy (CM) is recommended. The IgA-EmA test is the preferred method for detecting CD in these patients.
Area of Science:
- Gastroenterology
- Cardiology
- Immunology
Background:
- Celiac disease (CD) is a permanent gluten intolerance associated with autoimmune disorders.
- A link between CD and dilated cardiomyopathy (CM) has been observed in Europe and the US.
- The prevalence of CD in South Brazilian patients with advanced CM awaiting heart transplantation is unknown.
Purpose of the Study:
- To determine the prevalence of celiac disease (CD) in South Brazilian patients with advanced cardiomyopathy (CM) on the heart transplant waiting list.
Main Methods:
- 74 patients awaiting heart transplantation were evaluated for CD.
- Serological testing included IgA-EmA (indirect immunofluorescence) and IgA anti-h-tTG (ELISA).
- Positive patients underwent upper endoscopy with intestinal biopsy for histologic confirmation.
Main Results:
- IgA-EmA was positive in 2.63% of patients; IgA anti-h-tTG was positive in 6.75%.
- One patient (1.35%) tested positive for both antibodies.
- Histologic confirmation of CD was achieved only in IgA-EmA positive individuals.
Conclusions:
- The study suggests screening for celiac disease (CD) in patients with cardiomyopathy (CM).
- The IgA-EmA test is recommended as the primary screening method for CD in this population.
- Early detection of CD may be crucial for managing patients with advanced CM.
Abstract:
Celiac disease (CD) is a permanent condition of gluten intolerance and a number of autoimmune diseases have been associated with it. In the past few years, a relation between CD and dilated cardiomyopathy (CM) was described in Europe and United States. The aim of this study was to evaluate the prevalence of CD among south Brazilian precardiac transplant patients with advanced CM. A total of 74 patients on a list for heart transplantation were evaluated for the presence CD. The presence of anti-endomisial antibody (IgA-EmA) was determined by indirect immunofluorescence and for the anti-transglutaminase antibody (IgA anti-h-tTG) by ELISA. Serologically positive patients were submitted to upper endoscopy with intestinal biopsy. Two individuals (2.63%) were positive for IgA-EmA and 5 (6.75%) for IgA anti-h-tTG; 1 (1.35%) had both tests positive. Histologic confirmation of CD occurred only in the IgA-EmA positive patients. In conclusion, data from the present study allows recommend the screening for CD in patients with CM using IgA-EmA test as the method of choice.
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