Utility of oral rehydration jelly in probe method endoscopic ultrasound: a prospective cohort study.

BACKGROUND

When performing endoscopic ultrasound (EUS) using a miniature probe, filling the lumen with water is necessary. However, because of gravity and peristalsis, satisfactory images are often not obtained. Recently, it has been reported that injecting a viscous gel instead of water could facilitate EUS imaging.

OBJECTIVES

To determine if EUS performed with rehydration jelly returned interpretable images when the standard method did not.

DESIGN

Prospective cohort study.

METHODS

EUS was first attempted in 50 patients using the conventional water-filling method; in cases where satisfactory images were not obtained, EUS was additionally performed using oral rehydration jelly (OS-1). Five endoscopists evaluated the obtained images, and their outcomes were examined.

RESULTS

Satisfactory images were not obtained in 34 cases when using the water-filling method. The images obtained using the jelly method were improved compared to the water-filling method in 29 cases, with a significant improvement in 18 cases. No complications were observed with the jelly method.

CONCLUSION

For EUS, the jelly method will likely yield good images when satisfactory image quality cannot be obtained using the water-filling method.