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Abstract:

The review is devoted to possibilities of ultrasound and functional diagnostic methods in the diagnosis of ischemic stroke of unknown etiology. Main causes of cryptogenic ischemic stroke are highlighted in the article. Advances in high resolution ultrasound of extracranial and intracranial vessels and of the heart, prolonged heart rhythm monitoring are instrumental techniques to identify arterial and cardiac hidden causes of stroke. We reviewed literature, on the basis of available data, designed a diagnostic algorithm for patients with patent foramen ovale (PFO) and risk of embolism from atherosclerotic plaque. 

 

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