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Does Transcatheter Closure of Patent Foramen Ovale Really "Shut the Door?"
Stroek 35:2140, Anzola,G.P.,et al, 2004
See this aricle in Pubmed

Article Abstract
Transcatheter PFO closure in patients with cryptogenic stroke and large RLS may be less successful than reported previously. TCD appears the ideal tool to follow up the closure process and to identify early, during follow-up, those patients who will be left with a significant shunt. Atrial fibrillation is more common than believed previously and may underlie the occurrence of further cerebrovascular events despite complete PFO closure. Irritative visual phenomena may occur as a consequence of nickel toxicity.
 
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cerebrovascular accident
cerebrovascular accident,recurrent
doppler,transcranial
efficacy
patent foramen ovale
patent foramen ovale,percutaneous closure

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