Table 2 Anatomical classification of AR lesions according to cusp motion
From: Echocardiographic assessment of aortic regurgitation: a narrative review
Anatomical classification of AR lesions | |||
|---|---|---|---|
Type | Dysfunction | Regurgitant jet | Echocardiographic findings |
I | Normal leaflet motion | Central or eccentric jet | Ia: Sinotubular junction and ascending aorta dilatation Ib: Sinuses of Valsalva and sinotubular junction dilatation Ic: Annulus dilatation Id: Cusp perforation or cusp fenestration without a primary functional aortic annular lesion |
IIa | Excessive leaflet motion due to cusp prolapse | Eccentric jet | • Flail cusp • Partial cusp prolapse • Whole cusp prolapse |
IIb | Free edge fenestration | Eccentric jet | Mobile fibrous strands attached to cusp near its commissure |
III | Restrictive leaflet motion | Central or eccentric jet | • Thickened cusps with restricted cusp motion • Extensive calcification/calcific deposits |