This case highlights a potential association between a large Chiari network with thrombus formation and the pathogenesis of stroke in a patient with atrial fibrillation.
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Chiari network thrombus may contribute to stroke in AF; hypothesis-generating case report leaves causal role open.
The Chiari network is an embryological remnant found in the right atrium, mostly without any significant pathophysiological consequences. However, several cardiac associations are reported in the literature including supraventricular tachyarrhythmias. We present a case of a 96-year-old body donor with a stroke episode and intermittent atrial fibrillations. The dissection of the heart revealed the presence of an immense Chiari network with a large central thrombus. The role of a Chiari network in the pathogenesis of stroke and pulmonary embolism is discussed.
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Schwimmer-Okike et al. (2016) studied this question.
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