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The bed smells like oil: About a case with diagnosis of epilepsy

Published online by Cambridge University Press:  13 August 2021

M. Suárez-Gómez*
Affiliation:
Psychiatry, Unidade Local de Saúde do Baixo Alentejo, Beja, Portugal
P. Rodrigues
Affiliation:
Psychiatry, Unidade Local de Saúde do Baixo Alentejo, Beja, Portugal
A. Suárez Gómez
Affiliation:
Community Health, Unidade de Cuidados Continuados, Borba, Portugal
*
*Corresponding author.

Abstract

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Introduction

Olfactory hallucinations have been described since the 19th century as a particular, often unpleasant smell at the beginning or during the spell. The olfactory cortex are involved in temporal lobe epilepsy.

Objectives

The aim was analyze the relationship between the olfactory hallucinations and the previus diagnosis of epilepsy.

Methods

In this study, we present a clinical case and review the current literature showing the relationship between smell and epilepsy.

Results

A 69-years-old woman, with a medical history of epilepsy, went to the emergency department describing a recent episode of seizure, self-limited in time, after a sensation of an unpleasant smell in bed. A medical history of osteoarthritis, cholecystectomy and essential tremor is described. No unknown drug allergies. The neurological examination shows dysarthric speech, tremor in the right upper limb, isochoric and reactive pupils, preserved sensitivity and strength, and a positive Romber’s sign. The physical examination, blood test and vital signs were normal. The head CT scan showed signs of ischemic leukoencephalopathy, without acute ischemic or hemorrhagic lesions. The patient was medicated with 1000 mg of valproate daily, which was suspended a month ago due to an alteration in liver transaminases. Treatment with diazepam 10 mg daily was prescribed and referred for consultation. The sense of smell changes over time for anormal aging process, affecting abilitiesto detect, identify and discriminate odors.Several neurodegenerative diseases presentcertain alterations that help us determine yourorigin and progression (Vaughan and Jackson, 2014).

Conclusions

Olfactory auras occurs before a seizure of the temporal lobe. Repeated stimuli in limbic regions can produce changes in the piriform cortex, with increased excitability and in epileptic discharges.

Disclosure

No significant relationships.

Type
Abstract
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of the European Psychiatric Association
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