“Alongside-the-stiff-guidewire” – a novel variant technique for difficult sigmoid intubation using gastroscope-directed guidewire pre-insertion

• References

• 1 Committee AT, Trindade AJ, Lichtenstein DR. et al. Devices and methods to improve colonoscopy completion (with videos). Gastrointest Endosc 2018; 87: 625-634
• 2 Ness RM, Gottlieb K, Rex DK. et al. Difficult sigmoid colon intubation: guide wire exchange technique. Gastrointest Endosc 1996; 44: 99-101