Biopsy sampling during self-expandable metallic stent placement in acute malignant colorectal obstruction: a narrative review

Table 2 Biopsy before or after SEMS placement or time not specified

First author	Country	Year	Study type	n	Type of endoscopist	Location of malignancy	Recommends biopsy
Time of biopsy: before
Fugazza [42]	Italy	2017	R	-	N/A	Left colon, right colon, rectum	N/A
Time of biopsy: after
Adler [43]	USA	2002	CR	1	S	Rectum	N/A
Bayraktar [44]	Turkey	2015	RS	49	GS	Left colon, rectum	N/A
Larkin [45]	Ireland	2014	PS	44	CS	All locations	N/A
Time of biopsy: N/A
An [46]	China	2020	RS	139	S	Left colon, rectum	N/A
Chung [47]	South Korea	2012	CR	1	N/A	Left colon	N/A
Dítě [48]	Czech Republic	2003	R	-	GE	Left colon, rectum	No
Farkas [49]	UK	2019	R	-	N/A	Left colon	N/A
Kaplan [50]	USA	2014	R	-	N/A	Left colon, right colon, rectum	N/A
Kim [51]	South Korea	2012	RS	14	N/A	N/A	N/A
Li [52]	China	2019	CR	1	N/A	Left colon	N/A
Öistämö [4]	Sweden	2016	RS	20	CS	Left colon, splenic flexure	N/A
Parodi [53]	Italy	2016	RS	88	GE	Left colon, rectum	N/A
Pisano [54]	Italy	2018	R	-	S	Left colon	Yes
White [55]	Australia	2011	RS	2	N/A	Left colon	N/A
Yanar [56]	Turkey	2014	PS	42	N/A	Left colon, rectum	N/A

Study type: CR case report, RS retrospective study, PS prospective study, R review
Type of endoscopist: GE gastroenterologist, CS colorectal surgeon, GS general surgeon, S surgeon (not specified)

ISSN: 1477-7819