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            Advanced Neurologyurology                                                  A case report of epileptic vertigo


            by heavy-headedness, floating sensation, and instability   impulse test, head thrust test, and caloric reflex test were
            when walking. Originally, her dizziness would occur 2 or   all negative. Twenty-four-hour electroencephalogram
            3 times a month, with each episode lasting for less than a   (EEG) monitoring showed spike and slow wave complex
            minute. However, over a course of 1 week, she experienced   discharges occurring at both sphenoidal electrodes, with
            more frequent (≥5  times a day) and severe episodes of   the left being more prominent (Figure  1). Oral sodium
            vertigo. Her symptoms were unpredictable and unrelated   valproate (500 mg/day) was administered and the dosage
            to position change. She did not experience any intense   was increased to 1000  mg/day after a week. A  9-month
            spinning sensation during the onset of vertigo, nor was the   follow-up showed that the patient had no further episodes
            dizziness accompanied by hallucination, unconsciousness,   of paroxysmal dizziness.
            headache, orbital discomfort, sweating, nausea, vomiting,
            abdominal pain, or diarrhea. She had no flustered feelings,   3. Discussion
            chest tightness, palpitations, pruritus over her abdomen,   Epileptic vertigo is a rare form of epilepsy. The incidence
            or abdominal discomfort, including “ascending epigastric   of epilepsy presenting with vertigo or dizziness is only
            sensation.” There were no concurrent neurological,   about  8.5%.  Especially,  the  sole  symptom  of  vertigo
            ophthalmic, or auditory disorders. She did not experience   or  dizziness,  which  is rarely  reported  in the  literature,
            agoraphobia, panic attacks, or any recent stressful   only occurs in approximately 0.8% of all epilepsy . Its
                                                                                                         [3]
            situations. She had a previous history of lumbar disk   incidence is higher in children and adolescents compared
            herniation more than 4 years ago, and she denied history of   with adults, especially in female . Due to the differences in
                                                                                        [7]
            hypertension, coronary heart disease, and diabetes. She had   race, sample size, etiology, and evaluation criteria between
            no history of motion sickness, migraine, trauma, surgery,   different studies , a complete and consistent criterion for
                                                                            [3]
            or diseases that resulted in epileptic seizures. Personal   epileptic vertigo has yet to be established.
            history and family history were insignificant. Physical
            examination showed that her general condition was good.   Although the pathogenesis of epileptic vertigo remains
            Cardiovascular, respiratory, abdominal, and nervous system   elusive, the current literature has indicated that vestibular
            examinations were normal. No abnormalities observed   cortical neurons are associated with periodic abnormal
                                                                                   [8,9]
            in vestibular and cerebellar function examinations. Her   discharge of the brain lobe  . Vestibular symptoms may also
            temperature and hearing examination were normal.   occur as a result of the permanent damage of the vestibular
                                                                                            [10]
            The laboratory investigation results were as follows:   cortical area due to chronic epilepsy . The hallmarks of
            C-reactive protein (CRP), liver function, kidney function,   epilepsy, including paroxysmal, transient, stereotypical,
            blood lipid, blood glucose, electrolytes, homocysteine,   and repetitive, are also present in epileptic vertigo. Its main
            thyroid function, erythrocyte sedimentation rate (ESR),   clinical manifestations are recurrent attacks of dizziness and
            coagulation function, protein S, protein C, antinuclear   vertigo, accompanied by the rotation of the visual scene, with
            antibodies (ANAs), antiphospholipid antibodies, and   or without nausea, vomiting, pallor, sweating, palpitation,
            antiganglioside antibodies were all within the normal   headache, and so on. These symptoms are unpredictable
            range. Serologic tests for human immunodeficiency   and are not associated with positional variation. With each
            virus (HIV), hepatitis B/C, and cytomegalovirus were all   episode, there is no loss of consciousness. Some patients
            negative. There were no obvious abnormalities in chest   may present with peripheral illusion sensation, such as
            radiograph, echocardiogram, abdominal ultrasound, and   rotating, drifting, tilting, swaying, heavy headedness, and
            electrocardiogram examinations. Brain magnetic resonance   unsteadiness while walking.
            imaging (MRI) showed old lacunar cerebral infarction   Each attack varies from several seconds to minutes
            lesions. Evaluation of intracranial and extracranial   without an exact time. However, studies have reported
            large vessels such as carotid ultrasound, computerized   that the duration of almost all temporal lobe-associated
            tomography angiography (CTA), and magnetic resonance   vertigos usually lasts less than a minute, whereas that
            angiography (MRA) did not show obvious stenosis nor   of non-temporal lobe-associated vertigo lasts longer .
                                                                                                           [3]
            atherosclerotic plaque. Hyperventilation did not trigger   This may indicate that the temporal lobe is associated
            the onset of the dizziness, and no spontaneous nystagmus   with transient epileptic vertigo. Hence, missed diagnosis
            was observed during the episode. On otolaryngology   or  misdiagnosis  with  transient  ischemic  attacks  (TIA),
            examination, her ear canals and eardrums were normal.   vestibular migraine, Meniere’s disease, BPPV, vestibular
            In addition, tests for benign paroxysmal positional vertigo   paroxysmia, hypoglycemia, arrhythmia, panic attacks,
            (BPPV) such as bilateral Dix-Hallpike maneuver, supine   neurosis, somatization, or psychogenic dizziness may
            roll test, Unterberger test, bilateral Dix-Hallpike maneuver,   likely occur in such patients. In EEG, abnormalities are
            supine roll test, Unterberger test, fistula test, video head   mainly observed in the frontal, temporal, and top area of


            Volume 1 Issue 3 (2022)                         2                       https://doi.org/10.36922/an.v1i3.140
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