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

Content Provider	Semantic Scholar
Author	Orzan, Fulvio Liboni, William Bonzano, Alessandro Molinari, Filippo Ribezzo, Marco Rebaudengo, Nicoletta Grippi, Gianfranco Negri, Ercole
Copyright Year	2010
Abstract	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.
File Format	PDF HTM / HTML
DOI	10.1111/j.1600-0404.2009.01302.x
Alternate Webpage(s)	http://porto.polito.it/2292641/1/2292641.pdf
PubMed reference number	19951266
Alternate Webpage(s)	https://doi.org/10.1111/j.1600-0404.2009.01302.x
Journal	Medline
Volume Number	122
Issue Number	4
Journal	Acta neurologica Scandinavica
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article