Table 3.

Doppler echo parameters in the HF and HF-VAD groups before and after sildenafil therapy. The values are expressed as medians (interquartile ranges) unless otherwise specified.

	HF (n = 11)			HF-VAD (n = 8)
	Pre-Sildenafil	Post-Sildenafil	p Value	Pre-Sildenafil	Post-Sildenafil	p Value
TR velocity, m/s	3.09 (2.38–3.44)	2.62 (2.36–3.93)	0.94	2.06 (1.95–2.32)	2.37 (2.21–2.61)	0.06
TR S/D ratio	1.37 (1.25–1.55)	1.13 (1.06–1.31)	0.02	1.42 (1.2–1.85)	1.37 (1.28–1.49)	0.82
Td RV lat E′/A′ ratio	1 (0.72–2.45)	0.71 (0.6–1.28)	0.29	0.9 (0.66–2)	0.77 (0.52–1.19)	0.73
Td RV MPI	0.58 (0.52–0.72)	0.59 (0.46–0.60)	0.49	0.79 (0.58–0.95)	0.51 (0.47–0.56)	0.11
MV E/A ratio	2.34 (1.8–3.09)	1.9 (1.5–3.3)	0.29	1 (0.78–1.64)	1.29 (0.82–1.7)	0.48