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A Rare Cause of Life-Threatening Chest Pain: Kounis Syndrome

Jia L, Liu Y, Chen X, Wang Y

Journal of cardiovascular development and disease, 2026

Abstract

Kounis syndrome, defined as an acute coronary syndrome triggered by allergic or hypersensitivity reactions, is a rare yet potentially life-threatening condition. This report details the case of a 50-year-old female patient presenting with recurrent chest pain, hypereosinophilia, and allergic comorbidities, who was ultimately diagnosed with type I Kounis syndrome. Modifications to her treatment regimen, including the administration of diltiazem and prednisolone, led to a complete resolution of her symptoms. This case highlights the critical importance of early diagnosis and timely intervention in managing Kounis syndrome. Early recognition is essential to prevent potentially fatal outcomes, thereby emphasizing the need for increased awareness among healthcare professionals.

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