Prévost sign (eyes)

Last revised by Frank Gaillard on 28 Jun 2017

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Weerakkody Y, Sarkar S, et al. Prévost sign (eyes). Reference article, Radiopaedia.org (Accessed on 18 Apr 2024) https://doi.org/10.53347/rID-5606

DOI:

https://doi.org/10.53347/rID-5606

Permalink:

https://radiopaedia.org/articles/5606

rID:

5606

Article created:

22 Feb 2009, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was created Frank Gaillard had no recorded disclosures.

View Frank Gaillard's current disclosures

Last revised:

28 Jun 2017, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was last revised Frank Gaillard had no recorded disclosures.

View Frank Gaillard's current disclosures

Revisions:

5 times, by 4 contributors - see full revision history and disclosures

Systems:

Central Nervous System

Sections:

Signs

Synonyms:

Prévost's sign
Vulpian's sign
Vulpian sign (eyes)

The Prévost sign, also known as the Vulpian sign, refers to conjugate ocular deviation in patients with acute cortical hemiparetic stroke.

The direction is variable, depending on the location of the stroke ³.

In a hemispheric stroke, the eyes usually deviate towards the lesion (away from the hemiparesis). The degree of deviation may be exaggerated when the head is turned in the same direction. It is most pronounced with non-dominant hemisphere (thus right) lesions ^2-3.

Involvement of the thalamus, on the other hand, usually results in conjugate gaze deviation away from the lesion and thus towards the side of hemiparesis ³.