Jump to ContentJump to Main Navigation

Subscriber Login

Forgotten your password?

Disclaimer

Oxford University Press makes no representation, express or implied, that the drug dosages in this book are correct. Readers must therefore always check the product information and clinical procedures with the most up to date published product information and data sheets provided by the manufacturers and the most recent codes of conduct and safety regulations. The authors and the publishers do not accept responsibility or legal liability for any errors in the text or for the misuse or misapplication of material in this work. Except where otherwise stated, drug dosages and recommendations are for the non-pregnant adult who is not breastfeeding.

Benign Positional Vertigo

Chapter:
Benign Positional Vertigo
Author(s):

Robert W. Baloh, MD, FAAN

, Vicente Honrubia, MD, DMSc

, and Kevin A. Kerber, MD

DOI:
10.1093/med/9780195387834.003.0010

Benign positional vertigo (BPV), also called benign positioning vertigo and benign paroxysmal positional vertigo, is a common inner ear disorder resulting from abnormal stimulation of the semicircular canals (usually the posterior). The direction of the provocative movement and the appearance of the induced eye movements (nystagmus) identify the involved canal(s). The abnormal stimulation is due to the presence of detached otoconia (canaliths) moving in the canal endolymph under the influence of gravity. In order for positional vertigo to occur, two events must happen: (1) otoconia must be dislodged from the utricular macule, and (2) the head must be held in a critical position that allows the otoconia to enter a semicircular canal. BPV is not a disease; rather, it is a syndrome that can have multiple causes of the detached otoconia.

Oxford Medicine requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us.