Right-to-left shunts may be not uncommon cause of TIA in Japan.


BACKGROUND AND PURPOSE Although 30% to 60% of transient ischemic attacks (TIAs) have embolic sources, the etiology of the remaining TIAs is unknown. Right-to-left shunt (RLS) is one of the most important etiologies of cryptogenic stroke. The aim of this study was to determine whether RLS is related to transient ischemic attack (TIA) of unknown etiology… (More)
DOI: 10.1016/j.jns.2008.09.035


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