Effect of technical parameters on transjugular intrahepatic portosystemic shunts utilizing stent grafts

Table 2 Results of cox regression analysis for transjugular intrahepatic portosystemic shunt placed with a stent-graft

	Primary patency	Time to recurrence of symptoms	All-cause mortality
	P value	P value	P value
SIVCD	0.23	0.83	0.18
HVTA	0.99	0.62	0.16
PVTA	0.65	0.25	0.17
Accessed portal vein	0.35	0.93	0.67
TIPS stent diameter	0.93	0.69	0.37
TIPS stent length	0.48	0.58	0.69
Final balloon diameter	0.99	0.43	0.22
Variceal Embolization	0.13	0.43	0.30
< 30 d of intervention	0.24	0.33	0.54

There was no statistically significant effect (i.e., P < 0.05) of any of the above variables on primary patency, time to recurrence of symptoms, or all-cause mortality. TIPS: Transjugular intrahepatic portosystemic shunt; SIVCD: Stent-to-inferior vena cava distance; HVTA: Hepatic vein to parenchymal tract angle; PVTA: Portal vein to parenchymal tract angle.