A Case of Nonischemic Cardiomyopathy Associated with Autoimmune Polyglandular Syndrome Type III

Objective:To report a case of nonischemic dilated cardiomyopathy associated with autoimmune polyglandular syndrome (APS) type III.MethodsA review of our patient’s medical records was undertaken, and her clinical history, investigations, and outcome are described. In addition, a literature review of nonischemic dilated cardiomyopathy occurring in association with autoimmune polyendocrinopathies was performed.ResultsAPS is diagnosed once a patient has developed at least 2 organ specific autoimmune diseases. APS III involves a combination of autoimmune diabetes and Graves’ disease without adrenal insufficiency. Autoimmune cardiomyopathies are not described as a feature of this condition; however, there are a few reported cases of patients with autoimmune polyendocrinopathies developing a nonischemic dilated cardiomyopathy. In this case, a 30-year-old female developed vitiligo, Graves’ disease, and latent autoimmune diabetes of the adult (LADA) over a 5-year period before presenting with conscious ventricular tachycardia (VT). This evolved into acute severe biventricular failure within a few weeks, which failed to resolve after adequate treatment of her other autoimmune conditions.ConclusionAlthough nonischemic cardiomyopathies have been associated with APS in a few published cases, this is the first case to our knowledge in a patient with APS III. (Endocr Pract. 2014;20:e183-e186)