impedance pH study used for diagnosis of GERD
A pediatric colonoscope facilitates intubation of the jejunal limbs, particularly the afferent limb, after gastrojejunostomy.
Retroflex the endoscope to visualize the cardia. A. Perform this maneuver by deflecting the tip sharply back. An owl’s eye view of both pylorus and cardia may be seen as the tip crosses over the incisura. B. As the cardia is identified, move the tip in a
The second portion of the duodenum is recognized by its concentric semicircular folds.
The pylorus is viewed from the gastric antrum. The endoscope is gently advanced while keeping the pylorus directly in the center of the visual field. Sometimes the pylorus will be observed to open and close. Position the endoscope ready to pass through th