Journal
UNDERSEA AND HYPERBARIC MEDICINE
Volume 44, Issue 6, Pages 607-610Publisher
UNDERSEA & HYPERBARIC MEDICAL SOC INC
DOI: 10.22462/11.12.2017.12
Keywords
alternobaric vertigo; facial baroparesis; scuba diving; chewing
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Equalization of middle ear pressure is an important consideration for scuba divers. When middle ear pressure is asymmetric, a diver may experience alternobaric vertigo. Moreover, individuals with an underlying temporal bone dehiscence are predisposed to facial baroparesis. An understanding on behalf of fellow divers and emergency responders to recognize and differentiate facial baroparesis from decompression illness is critical. Misdiagnosis may lead to inappropriate treatment or unwarranted stoppage of diving. There have been a few dozen reported cases of facial baroparesis in the literature, but few have included firsthand accounts. This report describes an incidence of unilateral facial baroparesis preceded by alternobaric vertigo, with commentary from divers who witnessed the individual experiencing the facial paresis. The facial weakness in this case resolved within 15 minutes after the diver chewed on fresh pineapple. This report suggests that alternobaric vertigo may be a harbinger of facial baroparesis. Upon resurfacing divers should consider prophylactic measures that help to dilate the Eustachian tube such as chewing, yawning and swallowing in order to minimize the risk of middle ear pressure-induced vertigo or facial paresis.
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