Importance of histological evaluation in endoscopic resection of early colorectal cancer

Table 2 The rates of en bloc resection and local recurrence of tumors larger than 20 mm in diameter treated by endoscopic mucosal resection

Author	Injection solution	No. of cases	Rate of en bloc resection (%)	Rate of local recurrence (%)
Saito et al[18]		228	33.0	14
Tanaka et al[19]	Glycerol	178	39.3	7.9
Tajika et al[20]		104	48.1	15.4
Iishi et al[21]	NS	56	25.0	-
Kobayashi et al[22]		56	37.5	21.4
Uraoka et al[23]	NS	44	20.5	18.6
	Glycerol	39	23.1	15.2
Our data	HA	35	42.8	10

HA: Hyaluronic acid; NS: Not significant.