. 2013 Dec 14;19(46):8731–8739. doi: 10.3748/wjg.v19.i46.8731

Table 4.

Studies including resections for hilar cholangiocarcinoma with and without preoperative biliary drainage n (%)

Ref.	Year	Country	Design	Type of PBD	Surgical procedures for included patients	PBD	n	Morbidity	P value	Mortality	P value
Su et al[10]	1996	China	Retro	PTCD	CR and PR	Yes	33	17 (51.5)	NS	5 (15.2)	NS
Su et al[10]	1996	China	Retro	PTCD	CR and PR	No	16	6 (37.5)	NS	0	NS
Takada et al[37]	1996	Japan	Retro	PTCD	CR	Yes	24	NA	-	3 (12.5)	NS
Takada et al[37]	1996	Japan	Retro	PTCD	CR	No	12	NA	-	6 (50)	NS
Hochwald et al[19]	1999	United States	Pro	PTCD	CR and PR	Yes	42	36 (85.7)	0.045	2 (4.8)	NS
Hochwald et al[19]	1999	United States	Pro	EBD	CR and PR	No	29	19 (65.5)	0.045	4 (14.3)	NS
Figueras et al[31]	2000	Spain	Retro	PTCD	CR	Yes	11	11 (100)	NS	1 (9)	NS
Figueras et al[31]	2000	Spain	Retro	PTCD	CR	No	9	6 (66)	NS	2 (22.2)	NS
Parks et al[36]	2000	United Kingdom	Retro	PTCD	CR and PR	Yes	20	11 (55)	NS	1 (5)	NS
Parks et al[36]	2000	United Kingdom	Retro	EBD	CR and PR	No	27	11 (40.7)	NS	1 (3.7)	NS
Gerhards et al[5]	2000	The Netherlands	Retro	PTCD	CR	Yes	93	59 (63)	NS	16 (17)	NS
Gerhards et al[5]	2000	The Netherlands	Retro	EBD	CR	No	18	13 (72)	NS	3 (17)	NS
Dinant et al[33]	2006	The Netherlands	Retro	PTCD	CR	Yes	83	56 (67.5)	NS	14 (16.7)	NS
Dinant et al[33]	2006	The Netherlands	Retro	EBD	CR	No	14	6 (42.9)	NS	2 (14.3)	NS
Li et al[32]	2009	China	Retro	PTCD	CR and PR	Yes	55	20 (36.3)	NS	4 (7.3)	NS
Li et al[32]	2009	China	Retro	PTCD	CR and PR	No	56	16 (28.6)	NS	5 (8.9)	NS
Ferrero et al[18]	2009	Italy	Retro	PTCD	CR	Yes	30	21 (70)	NS	1 (3)	NS
				EBD		No	30	19 (63)		3 (10)
				SD
Ercolani et al[34]	2010	Italy	Retro	PTCD	CR and PR	Yes	44	25 (56.8)	NS	NA	-
Ercolani et al[34]	2010	Italy	Retro	EBD	CR and PR	No	7	2 (28.5)	NS	NA	-
El-Hanafy et al[20]	2010	Egypt	Retro	PTCD	CR	Yes	46	27 (58.6)	0.001	5 (10.8)	NS
El-Hanafy et al[20]	2010	Egypt	Retro	EBD	CR	No	54	11 (20.3)	0.001	3 (5.5)	NS
Yu et al[35]	2012	China	Retro	PTCD with bile re-infusion	CR and PR	Yes	48	14 (29.2)	0.036	1 (2.1)	NS
Yu et al[35]	2012	China	Retro	PTCD with bile re-infusion	CR and PR	No	39	20 (51.3)	0.036	2 (5.1)	NS
Farges et al[14]	2013	France and Belgium	Retro	PTCD	CR	Yes	180	123 (68.3)	NS	17 (9.4)	NS
Farges et al[14]	2013	France and Belgium	Retro	EBD	CR	No	186	128 (68.8)	NS	22 (11.8)	NS
Present study		China	Retro	PTCD	CR	Yes	32	17 (53.1)	NS	3 (9.4)	NS
				EBD		No	46	27 (58.7)		2 (4.3)
				SD

Retro: Retrospective; Pro: Prospective; PBD: Preoperative biliary drainage; PTCD: Percutaneous transhepatic cholangio-drainage; EBD: Endoscopic biliary drainage; SD: Surgical drainage; CR: Curative resection; PR: Palliative resection; NA: Not available; NS: Not significant.