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Παρασκευή 25 Μαΐου 2018

Immune Checkpoint Inhibitor‐Associated Myocarditis

AbstractImmune checkpoint inhibitors (ICIs) are approved for a wide range of malignancies. They work by priming the immune system response to cancer and have changed the landscape of available cancer treatments. As anticipated, modulation of the regulatory controls in the immune system with ICIs results in diverse immune‐related adverse events, targeting any organ or gland. These toxicities are rarely fatal and generally regress after treatment discontinuation and/or prescription of corticosteroids. Recently, several cases of ICI‐related cardiotoxicity have been reported with complications ranging from cardiogenic shock to sudden death. The true incidence of ICI‐associated myocarditis is likely underestimated, due to a combination of factors including the lack of specificity in the clinical presentation, the potential of overlap with other cardiovascular and general medical illnesses, the challenges in the diagnosis, and a general lack of awareness of this condition. Currently, there are no clear guidelines for surveillance, diagnosis, or management of this entity. There are multiple unresolved issues including, but not limited to, identifying those at risk of this uncommon toxicity, elucidating the pathophysiology, determining if and what type of surveillance is appropriate, optimal work‐up of suspected patients, and methods for resolution of myocarditis. Here we describe a clinical vignette and discuss the salient features and management strategies of ICI‐associated myocarditis. The Oncologist 2018

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