Spontaneous Recovery of Isolated Advanced Heart Block in Patient with Celiac Disease by Starting a Strict Gluten Free Diet: A Case Report and Review of the Literature

Cardiac conduction disorder may have a wide range of aetiology and can manifest with symptomatic bradycardia and syncope. Celiac disease is a malabsorptive long-term autoimmune disorder where the small intestine is the primarily affected organ due to gluten intolerance in genetically predisposed individuals. The associations between celiac disease and cardiac pathology are uncommon. We report a case of a 50-year-old woman with a known case of celiac disease who presented with a symptomatic cardiac conduction abnormality that improved with a gluten-free diet. LEARNING POINTS: Celiac disease is a malabsorptive long-term autoimmune disorder where the small intestine is the primarily affected organ due to gluten intolerance and affects 1% of the general population. Cardiovascular pathology, including dilated cardiomyopathy, myocarditis, arrhythmias, and premature atherosclerosis, was found to be more prevalent in patients with celiac disease than in others without celiac disease. The association of celiac disease with isolated advanced atrioventricular conduction abnormality is rare and a gluten-free diet may help improve the conduction abnormality.