A prosthetic heart valve configured to be expanded between native leaflets of a native aortic annulus of a patient, the prosthetic heart valve comprising: a collapsible and expandable stent having a proximal end , a distal end , an annulus section adjacent the proximal end , and an aortic section adjacent the distal end , the stent including a plurality of struts shaped to form a plurality of cells connected to one another in a plurality of annular rows (R1, R2, R3) around the stent , the stent defining a flow direction (F) from the proximal end toward the distal end , the stent having a minimum diameter in a direction perpendicular to the flow direction (F) and a length (L2) in the flow direction (F) between the proximal and distal ends when the stent is in an expanded use condition, the length (L2) being greater than the minimum diameter; a cuff attached to the annulus section of the stent , the cuff having top and bottom edges and occupying a first group of the cells , such that the cells above the top edge are open cells at least partially devoid of the cuff , the cuff having a landing zone that is a continuous cylindrical portion of the cuff , the landing zone having a length extending at least one-third of the length (L2) of the stent in the flow direction (F), the length of the landing zone defined between the bottom edge of the cuff and a proximal end of a most proximal cell of the open cells when the stent is in the expanded use condition; and a plurality of prosthetic valve leaflets attached to the cuff between a first location and a second location distal to the first location in the flow direction (F), each of the prosthetic valve leaflets having a free edge . a collapsible and expandable stent having a proximal end , a distal end , an annulus section adjacent the proximal end , and an aortic section adjacent the distal end , the stent including a plurality of struts shaped to form a plurality of cells connected to one another in a plurality of annular rows (R1, R2, R3) around the stent , the stent defining a flow direction (F) from the proximal end toward the distal end , the stent having a minimum diameter in a direction perpendicular to the flow direction (F) and a length (L2) in the flow direction (F) between the proximal and distal ends when the stent is in an expanded use condition, the length (L2) being greater than the minimum diameter; a cuff attached to the annulus section of the stent , the cuff having top and bottom edges and occupying a first group of the cells , such that the cells above the top edge are open cells at least partially devoid of the cuff , the cuff having a landing zone that is a continuous cylindrical portion of the cuff , the landing zone having a length extending at least one-third of the length (L2) of the stent in the flow direction (F), the length of the landing zone defined between the bottom edge of the cuff and a proximal end of a most proximal cell of the open cells when the stent is in the expanded use condition; and a plurality of prosthetic valve leaflets attached to the cuff between a first location and a second location distal to the first location in the flow direction (F), each of the prosthetic valve leaflets having a free edge . <EOS>