Role of associating liver partition and portal vein ligation for staged hepatectomy in colorectal liver metastases: A review

Table 4 Number of patients in each report and distribution of postoperative complications

Ref.	Number of patients	Grade I	II	III	IV	V
Schnitzbauer et al[20]	25	12	13	6 IIIa, 8 IIIb	3 Iva, 5 IVb	31
Torres et al[37]	39	2	-	-	-	5
Oldhafer et al[25]	7	11	41	11
Ratti et al[24] after step 1	8		1		2
After step 2				3 IIIa		1
Nadalin et al[21] after step 1	15	12 (I/II)		3 IIIa, 2 IIIb	2
After step 2	15	16 I/II		5 IIIa, 4 IIIb	7	4
Ielpo et al[38]	6	3			2 IVa	11
Schadde et al[39]	48	3
Gauzolino et al[40]	4	2		1 IIIb
Troja et al[41]	5		3	1		1

¹Patients with CRLM;

²18 patients had significant morbidity;

³After step 1: 21 complications, 7 with grade IIIb or higher; after step 2: 35 complications, 13 with grade IIIb or higher.