Over-the-scope clips in the treatment of gastrointestinal tract iatrogenic perforation: A multicenter retrospective study and a classification of gastrointestinal tract perforations

Table 1 Site, type of procedure being during occurred gastrointestinal perforation and type of applied over-the-scope clip

Number of patients	20 (13 F and 7 M)
Site	Esophagus (n = 1)
	Stomach (n = 3)
	Duodenum (n = 4)
	Jejunum (n = 2)
	Cecum (n = 1)
	Ascending colon (n = 1)
	Sigmoid colon (n = 7)
	Rectum (n = 1)
Procedure	Diagnostic colonoscopy (n = 7)
	EUS (n = 3)
	EMR (n = 4)
	ERCP (n = 3)
	ESD (n = 2)
	Tracheostomy (n = 1)
OTSC-type	9/t mm (n = 2)
	10/t mm (n = 5)
	11/a mm (n = 1)
	11/t mm (n = 12)

OTSC: Over-the-scope clip; F: Female; M: Male; EUS: Endoscopic ultrasound; EMR: Endoscopic mucosal resection; ERCP: Endoscopic retrograde cholangio-pancreatography; ESD: Endoscopic submucosal dissection; a: Atraumatic teeth; t: Traumatic teeth.