Aortic valve reconstruction in patients with small aortic annulus
Aortic valve replacement using a prosthetic valve could lead to
prosthesis-patient mismatch (PPM) in patients with small aortic annulus.
Hoffman et al. reported the surgical outcomes in 632 patients who had
small aortic annulus and revealed that PPM occurred in 45.1% to 92.8%
of patients, and about 4.0% to 22.8% had severe
PPM.20 There was no PPM observed in our study 12
months surgery in the group with small aortic annulus (Table 5). It was
consistent with Sho A et al.’s study which reported no patients who
underwent the Ozaki procedure had PPM condition.21 The
Ozaki technique does not utilize artificial annulus, in addition, the
cusps are sutured directly to the natural annulus, which prevented
pannus formation in prosthetic valve and PPM condition after surgery.