Portal vein arterialization in 25 liver transplant recipients: A Latin American single-center experience

Table 2 Preoperative portosystemic circulation and portal doppler ultrasound parameters according to timing of portal vein arterialization

	Pre-reperfusion PVA	%	Post-reperfusion PVA	%	Overall	%	P value
n	15	60.0	10	40.0	25	100.0
Collateral portal circulation	13	87.0	7	70.0	20	80.0	0.358
Splenomegaly	12	80.0	6	60.0	18	72.0	0.378
Perigastric/periesophagic varices	7	47.0	5	50.0	12	48.0	1.000
Umbilical vein recanalization	6	40.0	2	20.0	8	32.0	0.402
Paracaval portosystemic shunt	1	7.0	0	0.0	1	4.0	1.000
Epiploic shunts	2	13.0	1	10.0	3	12.0	1.000
Mesenteric varices	3	20.0	0	0.0	3	12.0	0.250
Splenorenal shunts	3	20.0	3	30.0	6	24.0	0.653
Portal vein thrombosis2	13	86.6	3	30.0	16	64.0	0.009
Grade I	3	20.0	0	0.0	3	12.0
Grade II	5	33.3	3	30.0	8	32.0
Grade III	4	26.7	0	0.0	4	15.0
Grade IV	1	7.7	0	0.0	1	4.0
Preoperative doppler ultrasound
Portal vein velocity (cm/s)1	11.60 [8.30-18.86; 10.8]		16.00 [13.10-23.20; 7.6]		14.00 [11.7-19.0; 10.5]		0.048
Portal vein flow (L/min)1	0.59 [0.40-0.70; 0.23]		0.68 [0.40-0.94; 0.80]		0.59 [0.47-0.73; 0.56]		0.367

¹These variables do not have normal distribution [median (p5-95; IQR)]. They were compared using Mann-Whitney’s U test.

²Portal vein thrombosis was classified according to Yerdel’s classification. PVA: Portal vein arterialization.