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Observations placeholder

Hallucinations and epilepsy seizures caused by hyperglycaemia



Type of Spiritual Experience


Number of hallucinations: 1


A description of the experience

Epilepsia. 2005 Jul;46(7):1140-4.

Hyperglycemia with occipital seizures: images and visual evoked potentials.

Wang CP1, Hsieh PF, Chen CC, Lin WY, Hu WH, Yang DY, Chang MH.

PURPOSE:  Hyperglycemia may rarely be seen with visual seizures. Observation of both visual evoked potentials (VEPs) and magnetic resonance imaging (MRI) in visual status epilepticus (SE) has not been reported. We describe acute and follow-up VEP and MRI findings of a patient with hyperglycemia-related visual SE of occipital origin.

METHODS: In a 59-year-old diabetic woman, complex visual hallucinations and illusions developed with < or =10 seizures per hour as an initial manifestation of nonketotic hyperglycemia.

RESULTS:  Neurologic examination revealed ictal nystagmus to the right and continuous right hemianopsia. Ictal electroencephalography (EEG) and Tc-99m hexamethylpropylene amine oxime (HMPAO) single-photon emission computed tomography (SPECT) revealed an epileptogenic focus in the left occipital lobe. MRI with fluid-attenuated inversion recovery showed focal subcortical hypointensity and gyral hyperintensity. Follow-up MRI showed only minimal gyral hyperintensity at 6 months. The P100 amplitude of VEP was significantly higher at the right occipital area during SE, but slightly higher on the left after the patient had been seizure free for 6 months.

CONCLUSIONS:  Occipital seizures and hemianopsia can be caused by hyperglycemia and may be accompanied by special MRI and VEP findings.

Comment in

  • Occipital seizures and visual evoked potentials. [Epilepsia. 2006]

PMID:  16026568

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