Meta-analysis comparing differing methods of endoscopic therapy for colorectal lesions

Table 4 Recurrent lesion characteristics

Ref.	Follow-up time (mean or median ± SD, range) (mo)		Recurrence rate (%)		Piecemeal resection rate of recurrent lesions (%)		Recurrent lesion histology (EMR:ESD cases)				Treatment of recurrent lesion (EMR:ESD cases)
	EMR	ESD	EMR	ESD	EMR	ESD	Adenoma	Non-inv cancer	Sm1	Invasive cancer	APC	EMR	Surgery
Tajika et al[22]	53.8 ± 44.6 (3-191	14.3 ± 13.4 (3-53)	15.4	1.2	94	100	13/16:0	3/16:0	0:1/1	0:0	7/16:0	8/16:0	1/16:1/1
Lee et al[23]	26 (IQ range 13-41)	17 (IQ range 10-23)	25.7	0.8	90	50	-:2/2 (serrated)	-	-	-	0:0	28/29:2/2	1/29:0
Kobayashi et al[24]	38 (2.8-112.5)	19.9 (6.4-43.9)	21.4	0	92	n/a	8/12:0	3/12:0	0	1/12:0	0:0	11/12:0	1/12:0
Saito et al[25]	26 ± 17 (6-68)	20 ± 13 (6-61)	14	2	94	100	-:3/3	-	-	2/33:0	0:0	30/33:	3/33:0
												3/33
Kim et al[26]	12 (6-12)	12 (6-12)	11.8	4.8	-	0	-	1/1:0	0	0:0	-	-	-
Tamegai et al[19]	19.2 (3-34)	12.2 (3-34)	6.3	0	100	-	-	-	-	-	-:0	2/2:0	0:0

EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection; APC: Argon photocoagulation.