Hyperthyroidism: A rare cause of pulmonary embolism: Report of two cases

Unprovoked Isolated Pulmonary Embolism and Graves’ Disease in a Patient With Dyspnea: A Case Report

Graves’ disease is a commonly diagnosed disease with a plethora of manifestations that can lead to its diagnosis. One of the rarer presentations of Graves’ disease is hypercoagulability with the development of spontaneous venous thrombosis. In patients presenting with unprovoked pulmonary embolism, we suggest evaluating the patient’s thyroid function tests as a potential underlying cause. To bring this issue to attention, we are presenting a rare case of isolated spontaneous pulmonary embolism development secondarily to underlying Graves’ disease.

Graves'-induced prothrombotic state and the risk of early-onset myocardial infarction

Hyperthyroidism represents a state of hypercoagulability and hypofibrinolysis, which predisposes an individual to the increased risk of thromboembolism. We present a case of a 25-year-old patient presenting with an acute myocardial infarction secondary to plaque rupture with thrombotic occlusion of proximal left anterior descending artery, in a patient known to have Graves' disease. She had a sudden ventricular fibrillation arrest and a precordial thump given and cardiopulmonary resuscitation started. She successfully underwent cardiac catheterisation. Subsequent thyroid function tests showed she was in active thyrotoxicosis.

A Case of Cerebral Venous Thrombosis in a Patient with Graves' Disease

Superior sagittal sinus thrombosis is an uncommon disease, and 25% of cases are considered to be idiopathic. Hypercoagulability, local bloodstream stasis, and vessel wall abnormalities may contribute to the development of this condition. The thyrotoxic phase of Graves' disease is associated with venous thrombosis caused by hypercoagulability, which is in turn induced by increased levels of homocysteine and factor VIII and decreased fibrinolytic activity. Here, we report the case of a 39-year-old male who presented with superior sagittal sinus thrombosis and concomitant hyperthyroidism.