Duroziez's sign explained

Synonym:	Alvarenga-Duroziez sign

Duroziez's sign is a sign of aortic insufficiency.^[1] It consists of an audible diastolic murmur which can be heard over the femoral artery when it is compressed with the bell of a stethoscope.^[1]

It is named for French physician Paul Louis Duroziez who published its description in 1861,^{[1] [2]} even though it was first described by Portuguese physician Pedro Francisco da Costa Alvarenga in 1855;^[3] for this reason it is alternatively known as the Alvarenga-Duroziez sign.

Notes and References

1. Book: Yale . Steven H. . Tekiner . Halil . Mazza . Joseph J. . Yale . Eileen S. . Yale . Ryan C. . Cardiovascular Eponymic Signs: Diagnostic Skills Applied During the Physical Examination . 2021 . Springer . Switzerland . 978-3-030-67596-7 . 116. https://books.google.com/books?id=zJQoEAAAQBAJ&pg=PA116 . en . 5. Aortic regurgitation murmurs.
2. P. L. Duroziez. Du double souffle intermittent crural, comme signe de l’insuffisance aortique. Archives générales de médecine, Paris, 1861, 5 sér., 17: 417-443, 588-605.
3. Book: Alvarenga, Pedro Francisco da Costa . 1856 . Mémoire sur l'insuffisance des valvules aortiques et considérations générales sur les maladies du cœur . French . Paris . Chez J.-B. Baillière .