Comparison of simplified and traditional pericardial devascularisation combined with splenectomy for the treatment of portal hypertension

Table 3 Comparison of short-term and long-term recovery indicators and complications after the operation n (%)

Parameters	S Group (n = 357)	T Group (n = 688)	Statistic	P-value
Short-term portal vein diameter (cm)	1.27 ± 0.18	1.28 ± 0.20	t = -0.07	0.94
Long-term portal vein diameter (cm)	1.13 ± 0.141	1.16 ± 0.171	t = -1.16	0.25
Short-term MELD score	5.88 ± 0.54	5.97 ± 0.48	t = -1.39	0.16
Long-term MELD score	5.79 ± 0.501	5.78 ± 0.421	t = 0.27	0.79
Short-term complications
Ascites	105 (29.41)	298 (43.31)	χ2 = 19.17	< 0.05
Portal vein thrombosis	49 (13.73)	153 (22.24)	χ2 = 10.92	< 0.05
Pleural effusion	66 (18.49)	271 (39.39)	χ2 = 47.00	< 0.05
Wound infections	10 (2.80)	37 (5.38)	χ2 = 3.63	0.06
Hepatic encephalopathy	3 (0.84)	5 (0.73)	χ2 = 0.04	1
Rebleeding	0 (0.00)	3 (0.44)	χ2 = 1.56	0.56
Long-term complications
Ascites	36 (10.08)	122 (17.73)	χ2 = 10.71	< 0.05
Portal vein thrombosis	25 (7.00)	78 (11.34)	χ2 = 4.97	0.03
Pleural effusion	57 (15.97)	95 (13.81)	χ2 = 0.88	0.35
Hepatic encephalopathy	3 (0.84)	7 (1.02)	χ2 = 0.08	1
Rebleeding	21 (5.88)	89 (12.94)	χ2 = 12.42	< 0.05

¹A significant difference compared with the preoperative and short-term parameters. MELD: Model for end-stage liver disease.