[Transtentorial ventriculocisternostomy].

Transtentorial ventriculocisternostomy was performed on 21 patients. It led to the correction of the hypertensive-occlusive phenomena in all of them. No accumulation of cerebrospinal fluid in the soft tissues along the shunt-tubes, liquorrhea or purulent complications were encountered in the postoperative period. Transtentorial ventriculocisternostomy is indicated as the final stage of exploratory trephination of the posterior cranial fossa during which occlusion of the c.s.f. passages, irreparable by any other means, is revealed. It may also be the operation of choice for patients in whom high occlusion was diagnosed during a preoperative examination. Irrespective of the level and causes of occlusion of the c.s.f. passages and the operative method, bilateral ventriculocisternostomy is expedient.