6 dogs were anesthetized and a silver clip attached to a cotton plug as surgically placed in the aqueduct of Sylvius. An immediate postoperative lateral skull film was obtained to demonstrate the position of the clip. The animals developed signs of hydrocephalus within hours after the procedure. 2 weeks after placement of the aqueduct plug, the animals received a permanent ventriculostomy. Immediate pre- and postoperative ventriculostomy lateral skull films were taken again to indicate position of the silver clip. Finally, a lateral skull film was taken 2 weeks after ventriculostomy and just prior to sacrifice. Radiological techniques were standardized. In this experimental setting downward brain stem herniation predominated and upward herniation of the brain stem was an infrequent occurrence.

Keywords:
Brain stem herniation, Upward brain stem herniation, Aqueduct stenosis, Hydrocephalus
This content is only available via PDF.
© 1980 S. Karger AG, Basel
1980
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.