Therapeutic efficacy and stent patency of transhepatic portal vein stenting after surgery

Table 1 Types of surgery and lesion locations of the patients

patient No.	Age/sex	Surgery	Locations
1	65/F	DDLT	Main PV
2	74/F	Whipple’s op	PV-SMV
3	58/M	Distal pancreatectomy + Spl-SMV bypass	PV-SMV
4	73/M	Whipple’s op	PV-SMV
5	61/F	Whipple’s op	PV-SMV
6	63/F	PPPD	PV-SMV
7	75/F	PPPD	PV-SMV
8	68/F	PPPD	PV-SMV
9	65/F	PPPD	PV-SMV
10	70/M	PPPD	PV-SMV
11	55/M	PPPD	PV-SMV
12	70/F	PPPD	Main PV
13	69/F	Whipple’s op	PV-SMV
14	54/M	Right anterior segmentectomy	Right PV
15	76/M	Right hemicolectomy + PPPD	PV-SpV
16	26/M	Right lobectomy	Left PV
17	55/F	Right + caudate lobectomy	Left PV
18	66/M	Right + caudate lobectomy	Left PV
19	74/M	Subtotal pancreatectomy, Splenectomy, partial nephrectomy	PV-SMV
20	79/F	Trisegmentectomy + caudate lobectomy	Left PV
21	68/M	Whipple’s op	PV-SMV
22	78/M	Central segmentectomy	Right PV

DDLT: Deceased donor liver transplant; PPPD: Pylorus-preserving pancreatoduodenectomy; PV: Portal vein; SMV: Superior mesenteric vein; SpV: Splenic vein.

Table 2 Clinical manifestations of patients

Clinical manifestations	No. of patients
Intestinal angina-like abdominal pain refractory to medical treatment
Only pain	2
Worsening of PVS during the follow-up (> 2 wk)	4
Worsening of PVS during the follow-up (> 2 wk) + abnormal LFT	1
PVT after PCD	1
Abnormal LFT	1
Fail to PV anastomosis during the operation	1
Anorexia refractory to medical treatment (with increased JPDO)	1
Ascites	4
Increased JPDO	6
Abnormal LFT	1

“Worsening of PVS” indicates aggravation of the PVS on abdominal CT during the follow-up period. “Increased JPDO” indicates increased serosanguinous JP drain output–suspected ascites. CT: Computed tomography; JPDO: Jackson-Pratt drain output; PVS: Portal vein stenosis; PCD: Percutaneous drainage; PVT: Portal vein thrombosis.

Table 3 The criteria for portal vein stenting - stenosis > 50% of the main portal vein diameter revealed by transhepatic portography, or a pressure gradient across the stenosis > 5 mmHg

Criteria	No. of patients
PVS > 50% with measuring of PrG
PrG > 5 mmHg	11
PrG = 5 mmHg
Contrast stagnation with collaterals formations	2
Kinking of PV (stenosis and acute angulation)	1
PVS > 50% without measuring of PrG
Contrast stagnation with collaterals formations	3
Kinking of PV	3
Stenosis and partial PVT	1

PVS: Portal vein stenosis; PrG: Pressure gradient; PVT: Portal vein thrombosis.