Anatomical resection of hepatocellular carcinoma: A critical review of the procedure and its benefits on survival

Table 2 Summary of case-control studies using the propensity score matching method to compare the outcomes of anatomical and non-anatomical resection for hepatocellular carcinoma

Ref.	Study period	Patient total number and after propensity score matched (AR:NAR)	Inclusion criteria	Method of AR	ICG R15	Bleeding amount	Survival benefit of AR
				D:Dye injection	Difference	(mL, AR:NAR)
				G:Glissonian	B/W AR and NAR
Okamura et al[35], 2014	2002-2013	n = 236 (139:97 and 64:64)	Solitary	Dye injection	P = 0.07	P = 0.008 (551:465)	No
							RFS (P = 0.52)
Ishii et al[32], 2014	2002-2010	n = 268 (110:158 and 44:44)	Solitary ≤ 5 cm	Not Clear	P = 0.053	0.9 (400:355)	No
							OS (P = 0.29) RFS (P = 0.28)
Marubashi et al[28], 2015	1981-2012	n = 1102 (577:525 and 329:329)	No limitation	Not clear	NA	Not shown	No
							OS (P = 0.7) and RFS (P = 0.4)

AR: Anatomical resection; NAR: Non-anatomical resection; D: Dye injection method; G: Glissonean pedicle method; ICG R15: Indocyanine green retention rate at 15 min; B/W: Between; OS: Overall survival; RFS: Recurrence-free survival; NA: Not applicable.