Heart failure caused by atrial fibrillation in a patient with isolated adrenocorticotropic hormone deficiency and hashimoto's thyroiditis

We report the case of a 75-year-old female patient with a history of Hashimoto's thyroiditis who presented with congestive heart failure caused by atrial fibrillation associated with isolated adrenocorticotropic hormone [ACTH] deficiency. This is the first case of the combination of these complex conditions. Clinical conditions in a patient with isolated ACTH deficiency and Hashimoto's thyroiditis can be variable. Thus, it is sometimes difficult to establish a diagnosis. The mechanism underlying heart failure may be complex in some cases. Various conditions can affect patients simultaneously. Therefore, making a proper diagnosis is necessary to improve the patient's prognosis