Analysis of the efficacy of first hepatic portal blockade in laparoscopic microwave ablation treatment of hepatic vascular tumors

doi:10.4240/wjgs.v18.i4.113354

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World Journal of Gastrointestinal Surgery

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1948-9366

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Gastrointest Surg. Apr 27, 2026; 18(4): 113354
Published online Apr 27, 2026. doi: 10.4240/wjgs.v18.i4.113354

Table 1 Baseline data comparison: Intervention vs control groups, n (%)/median (interquartile range)

	Before the PSM				After the PSM
Variable	Blocking (n = 87)	Non-blocking (n = 133)	Test statistic	P value	Variable	Blocking (n = 87)	Non-blocking (n = 79)	Test statistic
Age (years), mean ± SD	45.92 ± 9.97	46.54 ± 10.06	t = -0.450	0.653	45.92 ± 9.97	44.77 ± 9.40	t = -0.761	0.448
Gender			χ² = 1.188	0.276			χ² = 0.558	0.455
Male	24 (27.59)	46 (34.59)			26 (32.91)	24 (27.59)
Female	63 (72.41)	87 (65.41)			53 (67.09)	63 (72.41)
Maximum tumor diameter (cm)	6.300 (5.4, 7.3)	6.500 (6.0, 8.0)	-2.742	0.006^a	7.000 (5.0, 7.8)	6.500 (6.0, 8.0)	Z = -1.868	0.062
Number of tumors			5.804	0.016^a			Z = 0.02	0.888
1	42 (48.28)	86 (64.66)			42 (48.28)	39 (49.37)
≥ 2	45 (51.72)	47 (35.34)			45 (51.72)	40 (50.63)
Location			0.203	0.652			Z = 0.611	0.434
Left liver	28 (32.18)	39 (29.32)			28 (32.18)	30 (37.97)
Right liver	59 (67.82)	94 (70.68)			59 (67.82)	49 (62.03)
Adjacent blood vessels (cm)	2.700 (2.1, 3.1)	2.800 (2.3, 3.5)	-2.627	0.009^a	2.700 (2.1, 3.1)	2.600 (2.1, 3.1)	Z = -0.097	0.923
ALT (U/L)	16.000 (12.0, 26.0)	18.000 (12.0, 27.0)	-0.784	0.433	16.000 (12.0, 26.0)	17.000 (11.0, 29.0)	Z = -0.529	0.597
AST (U/L)	18.000 (15.0, 24.0)	19.000 (16.0, 22.5)	-0.907	0.364	18.000 (15.0, 24.0)	19.000 (15.0, 24.0)	Z = -1.039	0.299
TBIL (μmol/L)	10.300 (7.9, 13.1)	11.600 (8.0, 14.9)	-1.431	0.152	10.300 (7.9, 13.1)	11.700 (7.9, 14.9)	Z = -1.358	0.174
IBIL (μmol/L)	7.700 (5.5, 10.1)	8.400 (5.7, 10.6)	-0.79	0.43	7.700 (5.5, 10.1)	7.900 (5.5, 10.4)	Z = -0.22	0.826

^aP < 0.05 indicated a statistically significant difference.

PSM: Propensity score matching; ALT: Alanine aminotransferase; AST: Aspartate aminotransferase; TBIL: Total bilirubin; IBIL: Indirect bilirubin.

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Citation: Meng TF, Wang S, Chen C, Deng SK. Analysis of the efficacy of first hepatic portal blockade in laparoscopic microwave ablation treatment of hepatic vascular tumors. World J Gastrointest Surg 2026; 18(4): 113354
URL: https://www.wjgnet.com/1948-9366/full/v18/i4/113354.htm
DOI: https://dx.doi.org/10.4240/wjgs.v18.i4.113354

Meng TF, Wang S, Chen C, Deng SK. Analysis of the efficacy of first hepatic portal blockade in laparoscopic microwave ablation treatment of hepatic vascular tumors. World J Gastrointest Surg 2026; 18(4): 113354 [DOI: 10.4240/wjgs.v18.i4.113354]

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