Assertion: ventricular shunt | /r/HasProperty | necessary
Facets:
value: to make revisions
type: PURPOSE
value: to make changes
type: PURPOSE
value: in children
type: OTHER
Source sentences:
text: In adult patients, a ventricular shunt is often a one-time operation, but in children, it may be necessary to make changes, or revisions, to the shunt over the course of the child's life.