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Title

Transforaminal Doppler: an alternative to transtemporal approach for right-to-left cardiac shunt assessment

Authors
Savva, Elena
Published in Journal of the Neurological Sciences. 2008, vol. 273, no. 1-2, p. 49-50
Abstract BACKGROUND: Paradoxical thrombotic embolism via right-to-left shunt is a risk factor for ischemic stroke, especially in younger subjects. Transtemporal Doppler shows a sensibility and specificity in the detection of patent foramen ovale comparable to that of transesophageal echocardiography, but even younger patients may not have a sufficient acoustic temporal bone window (up to 10%). METHODS AND RESULTS: We thus studied prospectively in 74 patients subsequent to a recent stroke of undetermined origin whether transforaminal (foramen magnum) Doppler is an alternative to transtemporal Doppler in the detection and quantification of right-to-left cardiac shunt. We found a highly significant correlation between the two methods. CONCLUSIONS: We conclude that transforaminal Doppler may be a complement and alternative to transtemporal Doppler and thus improve its value as a screening method for right-to-left cardiac shunt due to patent foramen ovale.
Keywords Echocardiography, TransesophagealFemaleForamen Ovale, Patent/complications/ultrasonographyHeart Catheterization/adverse effectsHeart Septum/ultrasonographyHumansMaleMiddle AgedProspective StudiesSensitivity and Specificity
Stable URL http://archive-ouverte.unige.ch/unige:1214
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PMID: 18640691
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Deposited on : 2009-03-23

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