Clinical effects and complications of TIPS for portal hypertension due to cirrhosis: A single center

Table 2 Changes in dynamics and diameters of blood vessels before and after transjugular intrahepatic portosystemic shunt (n = 278, mean ± SD)

	Preoperative	Postoperative	P value
Portal venous pressure (cmH2O)	46.5 ± 3.4	26.8 ± 3.6	< 0.001
Portal venous internal diameter (cm)	1.68 ± 0.15	1.32 ± 0.11	0.007
Splenic venous internal diameter (cm)	1.31 ± 0.05	1.12 ± 0.03	0.009
Blood velocity in the portal vein (cm/s)	15.2 ± 4.7	49.3 ± 18.5	< 0.001
Blood velocity in the shunt pathway (cm/s)		154.0 ± 32.6

All parameters shown in Table 1 were significantly different before and after surgery (P < 0.01).