Table 1

Demographics and echocardiographic characteristics by valve position

Aortic n=32Mitral n=24Tricuspid n=21P value*P value†P value‡
Age79 (70–85)74 (59–85)66 (52–74)0.5790.0070.072
Gender, male22 (69)9 (38)11 (52)0.0200.2290.316
Valve type<0.001<0.0010.889
 Porcine11 (34)21 (88)20 (90)
 Pericardial12 (38)2 (8)1 (5)
 Transcatheter9 (28)1 (4)1 (5)
Postimplant MG (mm Hg)12 (8–18)4 (3–5)3 (2–5)
BPVT MG (mm Hg)41 (35–54)13 (9–19)8 (7–10)
Time to 1st echo follow-up after implantation10.9 (1.2–16.1)4.3 (1.5–24.0)3.5 (1.7–11.5)0.6780.2960.759
Time to BPVT diagnosis24.2 (12.4–65.9)20.9 (6.3–40.6)9.8 (1.3–35.4)0.3010.0100.130
Potential diagnostic delay21.3 (7.8–61.7)3.6 (0.0–23.8)0.02 (0.0–1.5)0.0370.0290.662
LVEF at BPVT, %62 (59–67)60 (52–64)61 (56–65)0.1250.4660.390
SV index at BPVT (mL/m2)50 (42–63)45 (33–55)40 (33–50)0.0390.0030.480
  • All duration intervals are in months. Numbers are reported as median (IQR) or number (percentage).

  • *Comparison between aortic and mitral positions.

  • †Comparison between aortic and tricuspid positions.

  • ‡Comparison between mitral and tricuspid position.

  • BPVT, bioprosthetic valve thrombosis; LVEF, left ventricular ejection fraction; MG, mean gradient; SV, stroke volume.