Two surgical procedures for esophagogastric variceal bleeding in patients with portal hypertension

Table 4 Comparison of hemodynamics in the two groups pre- and post-operatively

		Inner diameter (cm)				Blood flow velocity (cm/s)
		Pre-op	Post-op	Dvalue	Pvalue	Pre-op	Post-op	Dvalue	Pvalue
PV	PCVD	1.42 ± 0.21	1.24 ± 0.26	0.15 ± 0.17	< 0.01	15.28 ± 4.69	13.27 ± 4.76	2.01 ± 3.01	< 0.01
	Combined	1.39 ± 0.26	1.01 ± 0.30	0.38 ± 0.25	< 0.01	16.52 ± 4.67	11.33 ± 3.78	5.19 ± 3.42	< 0.01
	P	0.57	< 0.01	< 0.01		0.06	< 0.05	< 0.01
SV	PCVD	1.21 ± 0.24	1.05 ± 0.21	0.18 ± 0.13	< 0.01	17.65 ± 5.53	14.10 ± 5.58	3.55 ± 0.92	< 0.01
	Combined	1.25 ± 0.22	0.81 ± 0.22	0.43 ± 0.20	< 0.01	18.76 ± 5.76	13.10 ± 5.38	5.65 ± 3.00	< 0.01
	P	0.25	< 0.01	< 0.01		0.17	0.21	< 0.01
SMV	PCVD	0.95 ± 0.70	0.81 ± 0.21	0.14 ± 0.17	< 0.01	13.17 ± 4.61	11.00 ± 4.76	2.13 ± 2.33	< 0.01
	Combined	0.92 ± 0.19	0.66 ± 0.23	0.26 ± 0.27	< 0.01	14.69 ± 5.23	10.40 ± 4.46	4.29 ± 3.07	< 0.01
	P	0.3	< 0.01	< 0.01		< 0.05	0.33	< 0.01

PV: Portal vein; SV: Splenic vein; SMV: Superior mesenteric vein; PCVD: Pericardial devascularization.