Feasibility of using marginal liver grafts in living donor liver transplantation

Table 1 Recommended minimum graft-to-recipient weight ratio in different studies

Ref.	Recommended minimum GRWR	n (small vs large)	One-year survival (small vs large)	Five-year survival (small vs large)	Study type
Kiuchi et al[10] (1999)	1%	276 (49 vs 215)	61.2% vs 92.6%	NS	RS
Lee et al[11] (2003)	0.8%	141 (10 vs 131)	Univariate and multiple analysis	NS	RS
Moon et al[13] (2010)	Less than 0.8%	427 (35 vs 392)	87.8% vs 90.7%	74.1% vs 79.4%	RS
Lan et al[14] (2009)	Less than 0.8%	89 (15 vs 74)	73.3% vs 71.6%	NS	RS
Selzner et al[15] (2009)	Less than 0.8%	271 (22 vs 249)	91.0% vs 89.0%	83.0% vs 87%	RS
Chen et al[16] (2014)	Less than 0.8%	196 (45 vs 151)	82.2% vs 81.4%	71.1% vs 75.5%	RS
She et al[17] (2017)	Left lobe graft vs right lobe graft	218 (19 vs 199)	89.5% vs 95.9%	89.5% vs 86.8%	RS
Lee et al[18] (2014)	Less than 0.7%	317 (23 vs 294)	100% vs 93.2%	NS	RS
Alim et al[19] (2016)	0.6%	649	Seven patients had GRWR of 0.6%. If MELD score was below 20, donor age below 45, and no signs for any hepatosteatosis, GRWR of 0.6% was safe		RS
Lee et al[20] (2015)	0.40%	NS	Lowest GRWR of 0.40% had been successfully used		RS

PS: Prospective study; RS: Retrospective study; Ref.: Reference; GRWR: Graft-to-recipient weight ratio.