Follow-up of residual shunt after patent foramen ovale closure.

نویسندگان

  • F Orzan
  • W Liboni
  • A Bonzano
  • F Molinari
  • M Ribezzo
  • N Rebaudengo
  • G Grippi
  • E Negri
چکیده

OBJECTIVES Transesophageal echocardiography (TEE) is usually recommended in the evaluation of the patent foramen ovale (PFO). Our goal is to confirm the efficacy of contrast-enhanced transcranial Doppler (ce-TCD) in detecting residual significant right-to-left shunts (RLS) after PFO percutaneous closure. MATERIALS AND METHODS Sixty-eight patients with a previous transient ischemic attack, stroke and a large PFO were investigated for residual RLS after percutaneous closure. RESULTS Assuming TEE as the gold standard, the sensitivity and negative predictive value of ce-TCD was 100%, whereas the specificity was 75.8% and the positive predictive value was 28%. CONCLUSIONS ce-TCD appears to be the preferable technique to identify subjects with significant residual shunts after percutaneous closure of a PFO. In follow-up, if ce-TCD is negative, no further examination may be necessary; whereas if ce-TCD shows a residual shunt, it is advisable to perform a TEE investigation.

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عنوان ژورنال:
  • Acta neurologica Scandinavica

دوره 122 4  شماره 

صفحات  -

تاریخ انتشار 2010