Are laparoscopic cholecystectomy and natural orifice transluminal endoscopic surgery gallbladder preserving cholecystolithotomy truly comparable? A propensity matched study

Figure 1 Schematic of colonic cleansing, detachable balloon placement, and colonic disinfection. A: Colon after bowel preparations; B: Colon cleansing using saline solution; C: Placement of detachable balloon in the transverse colon; D: Distal colon disinfection using iodophor; E: Endoscopy insertion to peritoneal cavity via rectal incision; F: Suturing of rectal incision before balloon removal.