Assertion: catheter's balloon | /r/CapableOf | restrict the flow of blood
Facets:
value: to the esophageal varices
type: TRANSITIVE-OBJECT
Source sentences:
text: Once it is positioned under fluoroscopic control and inflated, the balloon exerts pressure against the submucosal venous network at the cardioesophageal junction, thus restricting the flow of blood to the esophageal varices.