Analysis of colonoscopic perforations at a local clinic and a tertiary hospital

Table 3 Large study of iatrogenic perforation related to colonoscopy n (%)

Ref.	Total	Diagnostic	Therapeutic	Polypectomy	EMR	ESD
Anderson et al[11]	59  987
	22 (0.04)
Cobb et al[10]	43  609
	14 (0.03)
Kaneko et al[24]	3  152  053	2  587  689	564  364	422  119	142  245	ND
	1387 (0.04)	568 (0.02)	819 (1.4)	621 (0.15)	198 (0.14)	ND
Iqbal et al[9]		78  702
		66 (0.84)
Tulchinsky et al[23]	120  067
	7 (0.06)
Lüning et al[7]		30  366
		35 (0.12)
Lüning et al[7]		433  816
		393 (0.09)
Taku et al[8]			15  160	8240	1906	43
			23 (0.15)	4 (0.05)	12 (0.63)	6 (14.0)
Kang et al[6]	44  534	37  762	6772
	53 (0.12)	26 (0.07)	27 (0.40)
Oka et al[22]			71  204	34  433	36  083	688
			62 (0.09)	6 (0.02)	33 (0.09)	23 (3.3)

Upper column: Number of cases; lower column: Perforation (%). EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection; ND: No data.