Complete or partial split in associating liver partition and portal vein ligation for staged hepatectomy: A systematic review and meta-analysis

Table 1 Characteristics of the included studies

Authors	Country	Year of publication	Number of patients	NOSa	Liver cirrhosis
Alvarez et al[10]	Buenos Aires, Argentina	2015	30	I	N
Chan et al[5]	Hong Kong, China	2016	25	I	Y
Linecker et al[11]	Zurich, Switzerland	2017	45	I	N
Petrowsky et al[4]	Zurich, Switzerland	2015	24	I	N

^aNewcastle-Ottawa score: studies were graded I if the score was > 6 or II if the score was ≤ 5. NOS: Newcastle-Ottawa score.

Table 2 Outcomes of FLR hypertrophy rate, morbidity and mortality in each included study

Authors	FLR hypertrophy		Morbidity		Mortality
	ALPPS	p-ALPPS	ALPPS	p-ALPPS	ALPPS	p-ALPPS
Alvarez et al[10]	107% (12.2)	90% (20.8)	8 (9)	8 (21)	1 (9)	1 (21)
Chan et al[5]	-	-	1 (13)	3 (12)	0 (13)	2 (12)
Linecker et al[11]	61% (15)	64.5% (12.1)	8 (22)	3 (23)	7 (22)	0 (23)
Petrowsky et al[4]	-	-	12 (18)	2 (6)	4 (18)	0 (6)

FLR: Future liver remnant; ALPPS: Associating liver partition and portal vein ligation for staged hepatectomy; p-ALPPS: Partial split of the liver parenchyma in ALPPS.