Ventriculo-atrial shunt has proved to be an effective therapy for hydrocephalus. We report about two patients, in whom due to different causes this therapy was not possible. Both of them were treated with ventriculo-pyeloureterostomy for liquor drainage. The shunt functioned well and without renal damage for four weeks in one patient and for 1 1/2 year in the other patient. The reported method is an alternative procedure when the usual type of liquor drainage is impossible.
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