Alternobaric Vertifo: Incidence in Portuguese Air Force Pilots
Abstract
Alternobaric Vertigo is a sudden and transient vertigo caused by asymmetrical changes in middle ear pressure (Lundgren - 1965). These changes are directly related to the daily activity of aircraft pilots (and divers). This vertigo strikes often in critical maneuvers (attacks or evasions) causing sudden disoilentation. We used an anonymous enquiry, multiple-choice type, preceded by a briefing about alternobaric vertigo. We found 29% of the pilots with 1 or more episodes of alternobaric vertigo, all being caused directly by rapid ascents and/or brisk Valsalva maneuvers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2001
- Accession Number
- ADP011066
Entities
People
- Alves Dos Santos
- Joao Subtil
- Jorge Varandas