What is an effective maneuver for passing the ascending colon during an endoscopy?

Passing the ascending colon during an endoscopy can be a challenging maneuver, and employing the correct technique is essential for successful navigation. Applying clockwise torque and suction of gas is effective because it helps facilitate the scope's navigation through the curved anatomy of the colon.

In the ascending colon, the anatomy creates a pronounced curve. By using clockwise torque, the endoscopist can maneuver the tip of the endoscope to align more favorably with the trajectory of the colon. This technique also allows for the reduction of gas that may be obstructing the view, as suctioning gas can help create a clearer pathway and a better field of vision.

The combination of these two actions—clockwise torque and suction—works together to minimize resistance and enhance the maneuverability of the scope, ultimately improving navigation through the ascending colon. Successful passage not only facilitates the endoscopic procedure but also decreases the risk of perforation or trauma to the bowel wall.