Abstract
IntroductionCaffeine is the most common psychoactive drug in use around the world and is found at different concentrations in a variety of common food items. Clinically, a strong association between caffeine consumption and diseases of the vestibular system has been established. Cervical vestibular-evoked myogenic potential (cVEMP) is an electrophysiological test that is used to assess the sacculocollic pathway by measuring changes in the vestialibulocollic reflex. AimThe present study aimed to evaluate the effect of an acute dose of caffeine on the vestibulocollic reflex by using cVEMP. MethodA prospective experimental study was performed in which healthy volunteers were submitted to the test before and after the intake of 420mg of caffeine. The following parameters were compared: p13 and n23 latencies and p13-n23 amplitude. ResultNo statistically significant difference was found in the test results before and after caffeine use. ConclusionThe vestibulocollic reflex is not altered by caffeine intake.
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