Experiences with the use of the 131I-hippuran test as an indicator in functional patency of ventriculocardiac shunts in hydrocephalic children.

In this paper a method is presented that provides information on the function of ventriculocardiac shunts in hydrocephalic children. There is good correlation between clinically and operatively demonstrated obstruction of the shunts as well as with clinically found free C.S.F. passage through the shunt. However, the greatest benefit is provided with the aid of the present method in cases with equivocal obstruction of the shunt where in our experience some operations of the shunt could be postponed or completely avoided in some cases. Because of its simplicity, safety, rapidity, and easy repeatability the method is recommended for routine ambulatory and hospital use.