bovine pericardial bioprostheses ( bpb ) , such as the ionescu-shiley or the vascor , and low-profile porcine bioprostheses ( liotta , lpb ) have particular features that make them useful in certain anatomical situations , such as aortic stenosis with hypoplastic annulus , pure mitral stenosis with little ventricle and double valvular stenosis with hypertrophic ventricular wall .
C0026269
mitral stenosis
C1883524
valvular stenosis