Long-term outcomes in 3 cases of quadricuspid aortic valve, using a new classification system: A case series and literature review

Toshimitsu Tsugu, Mitsushige Murata, Jin Endo, Takashi Kawakami, Hikaru Tsuruta, Yuji Itabashi, Keiichi Fukuda

Research output: Contribution to journalArticle


Quadricuspid aortic valve has been classified based on leaflet size. However, no association is seen between classification and severity of aortic regurgitation (AR). Bicuspid aortic valve is classified according to the number of cusps, with significantly higher prevalence of AR in cases with a raphe. We classified cases according to raphe number. In 1 patient with no raphe, AR severity did not change into the eighth decade. However, AR severity worsened in patients with a raphe, in 1 case requiring aortic valve replacement in the fifth decade. Unequal shear stress may lead to leaflet fibrosis and progressive AR.

Original languageEnglish
Pages (from-to)595-597
Number of pages3
Issue number3
Publication statusPublished - 2019 Mar 1



  • aortic insufficiency
  • aortic regurgitation
  • aortic valve
  • congenital heart disease
  • echocardiography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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