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

Table 5 Comparison of preoperative and postoperative doppler portal ultrasound according to portal vein thrombosis, ligation of spontaneous portosystemic shunts and primary graft dysfunction

Doppler ultrasound parameter	Variable	Preoperative	Postoperative	Delta (post-preoperative)
Portal vein velocity (cm/s)	Overall	14.00 [11.7-19.0; 10.45]	71.00 [58.4-102.8; 68]	52.70 [41.24-89.23; 73.50]
	No PVT	17.00 [13.25-25.98; 12.5]	88.00 [60.68-116.50; 45]	36.80 [13.89-80.699; 79.10]
	PVT	11.80 [8.58-17.50; 8.48]	48.00 [43.09-109.25; 55.91]	60.35 [41.21-109.44; 81.40]
	P value1	0.037	0.169	0.276
	No SPSS	14.00 [7.31-23.40; 12.8]	84.50 [61.62-121.41; 78.4]	75.20 [46.13-109.15; 77.00]
	SPSS	13.50 [11.02-19.82; 9.95]	67.00 [37.51-106.15; 19.16]	25.50 [5.32-87.93; 64.60]
	P value1	0.338	0.115	0.080
	No PGD	11.80 [8.52-18.63; 8.98]	85.82 [64.73-127.48; 80.55]	73.42 [48.78-115.95; 86.00]
	PGD	15.00 [12.53-24.20; 8.6]	46.00 [31.05-75.25; 49.25]	25.00 [9.78-59.78; 65.50]
	P value1	0.890	0.570	0.037
Portal vein flow (L/min)	Overall	0.59 [0.47-0.73; 0.56]	3.6 [2.69-4.99; 4.55]	3.21 [2.09-4.40; 4.24]
	No PVT	0.87 [0.41-1.02; 0.82]	2.68 [3.29-6.04; 3.05]	1.52 [0.65-4.17; 3.22]
	PVT	0.55 [0.40-0.67; 0.47]	2.05 [1.68-5.07; 4.4]	3.35 [2.10-5.31; 4.76]
	P value1	0.187	0.065	0.419
	No SPSS	0.9 [0.73-1.34; 0.32]	2.68 [2.41-5.40; 4.17]	1.77 [1.64-4.63; 3.88]
	SPSS	0.51 [0.38-0.66; 0.5]	3.97 [1.58-5.30; 8.65]	3.26 [1.19-5.59; 5.50]
	P value1	0.002	0.723	0.849
	No PGD	0.75 [0.50-0.82; 0.36]	3.95 [2.96-6.07; 4.73]	3.34 [2.29-5.42; 4.54]
	PGD	0.30 [0.24-0.74; 0.51]	2.20 [0.93-4.33; 3.1]	1.31 [0.41-3.88; 3.09]
	P value1	0.677	0.169	0.136

¹P value corresponds to the significance level of the comparison of either subgroups whether preoperatively, postoperatively or their difference. These variables do not have a normal distribution [median (p5-95; IQR)]. They were compared using Mann-Whitney’s U test. PVT: Portal vein thrombosis; SPSS: Spontaneous portosystemic shunt; PGD: Primary graft dysfunction.