Abstract
Eosinophilic granulomatosis with polyangiitis (EGPA) is a type of eosinophilic vasculitis that is mainly limited to small- and medium-sized arteries. Cardiac involvement is the leading cause of death in patients with EGPA. Spontaneous coronary artery dissection (SCAD) is an important cause of acute coronary syndrome in middle-aged women with no or few traditional cardiovascular risk factors. EGPA manifesting as repetitive acute coronary syndrome and SCAD has not been reported. A 45-year-old woman presented with recurrent chest pain and cardiogenic shock associated with coronary vasospasm refractory to common vasodilators. Coronary angiography showed SCAD at the proximal right coronary artery. Blood tests showed significant eosinophilia. In addition to sinusitis as shown by nasal computed tomography and abnormal nerve conduction velocity, the diagnosis of EGPA was made and immunosuppression commenced. During a 20-month follow-up, the patient remained free from symptoms and adverse cardiovascular events. EGPA can involve coronary arteries and may rarely manifest as SCAD or vasospasm. We herein review the mechanism underlying coronary involvement of EGPA and emphasize special clues for its detection. Early recognition and initiation of immunosuppression therapy are important.
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