Biological n = 159 Biological n = 159 Mechanical n = 436
p-value
p-value
PPM, moderate-to-severe 111 (69.8) 111 (69.8) 16 (3.7) 16 (3.7) 16 (3.7) < 0.001 < 0.001
Survival 133 (83.7) 133 (83.7) 381 (87.3) 381 (87.3) 381 (87.3) 0.24 0.24
Endocarditis 4 (2.5) 4 (2.5) 2 (0.5) 2 (0.5) 2 (0.5) 0.071 0.071
Redo surgery 3 (1.8) 3 (1.8) 5 (1.2) 5 (1.2) 5 (1.2) 0.53 0.53
Freedom from angina 114 (85.1) 114 (85.1) 340 (88.8) 340 (88.8) 340 (88.8) 0.28 0.28