Over-the-scope suturing (OTSS) requires a double-channel gastroscope, and closure of defects in the right side of the colon may require an overtube. Through-the-scope suturing (TTSS)
Over-the-scope suturing (OTSS) requires a double-channel gastroscope, and closure of defects in the right side of the colon may require an overtube. Through-the-scope suturing (TTSS)
