Unsuspected efficacy of starch-based polysaccharide vs crystalloid-oil emulsion for lifting in colonic endoscopic resections

Table 5 Comparison between starch-based polysaccharide solution and crystalloid-oil emulsion solution groups by location and size, n (%)

Occurrences and frequencies of measured outcomes	Submucosal injection group: Right-sided colon
	Starch-based polysaccharide solution	Crystalloid-oil emulsion solution	χ2 statistic	P value
Any size
Intraprocedural bleeding requiring intervention	8/63 (12.7)	15/42 (35.7)	7.80	< 0.01
En bloc resection	21/63 (33.3)	6/42 (14.3)	4.79	0.02
Adverse events	0/63 (0.0)	3/42 (7.1)	NS	NS
< 2 cm
Intraprocedural bleeding requiring intervention	0/16 (0.0)	0/17 (0.00)	NS	NS
En bloc resection	1/16 (6.3)	4/17 (23.5)	1.91	0.16
Adverse events	0/16 (0.0)	1/17 (5.9)	NS	NS
2-4 cm
Intraprocedural bleeding requiring intervention	8/47 (17.0)	15/24 (62.5)	15.00	< 0.01
En bloc resection	20/47 (42.6)	2/24 (8.3)	8.69	< 0.01
Adverse events	0/47 (0.0)	2/24 (8.3)	NS	NS
≥ 4 cm
Intraprocedural bleeding requiring intervention	3/17 (17.7)	4/5 (80.0)	6.92	< 0.01
En bloc resection	10/17 (58.8)	1/5 (20.0)	2.33	0.13
Adverse events	0/17 (0.0)	0/5 (0.0)	NS	NS

P values were derived from χ² tests comparing the occurrence of each outcome between the two study groups. NS: Not significant.