Hyperglycemic Seizures

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Seizures In Hyperglycemic Patients.

Abstract AIM OF STUDY: To study the pattern of seizures in hyperglycemic patients and its correlation with serum osmolality, blood sugar and serum sodium. MATERIALS AND METHODS: (Study period June 1999-June 2000) Forty patients who presented with first time seizures and who were detected to be diabetic were included in the study. All patients had detailed history, clinical examination blood sugar, BUN, serum electrolytes, serum osmolality, serum calcium estimation. EEG and CT head scan was also done. The seizures were classified as per ILAE classification (1981). The study group was further divided into Group A--those with normal CT (n 24) and Group B-- those showing infarcts in CT scan (n 16). The control group (n 40) were matched for age and had first occurrence of seizures and CT showed infarct and were euglycemic. All the investigations were done for the control group as well. Statistical analysis was done using ANOVA. RESULTS: None of the patient had diabetic ketoacidosis. Patients in study group had statistically significant incidence of (1) Focal seizures with or without generalisation (100%); (2) Visual hallucination (25%); (3) Epilepsia partialis continua (20%). Comparing Continue reading >>

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  1. RobinN

    Quote :

    The important new finding from Schwechter and colleagues is that hyperglycemia, itself, is proconvulsant. How can elevated glucose enhance seizure susceptibility? The answer to this crucial question regarding the mechanism of action awaits further research, as the mechanism per se is not addressed in this report. However, one clue to the answer might be gleaned from the authors's observation that hypoglycemia was associated with a higher seizure threshold. Other studies have indicated that restricting calories, thus inducing hypoglycemia, in the epilepsy-prone EL mouse also reduces seizure susceptibility (2). With any model that induces hypoglycemia, the role of ketosis must be excluded, as ketones themselves can affect seizure threshold (3). Moreover, multiple other mechanisms could explain hypoglycemia- and hyperglycemia-induced alterations of neuronal excitability. Furthermore, the effects of age on glucose balance and neuronal excitability must be delineated, as children with diabetes tend to develop seizures with hypoglycemia rather than with hyperglycemia. In addition to clarifying further the relation between hyperglycemia and seizures, Schwechter et al. highlight the link between metabolism and neuronal excitability and emphasize the need for further research on the long-term effects of hyperglycemia on various aspects of brain function.

  2. Nakamova

    I have the opposite experience -- for me, low blood sugar (hypoglycemia) is a seizure trigger, it lowers my seizure threshold....

  3. RobinN

    Yes I am doing some research on this, as the same seems to be true for my daughter as well.
    Her blood sugar is dropping before a seizure and then sometime spiking after.
    Though her last seizure when 911 was called it went down to 30. So we had a glucose tolerance test and it was at 50 on the last blood draw.
    I am reading conflicting information. Which only proves to me that they don't know much about this or why it really occurs.
    Can you tell me what you have done to try to remedy your situation. How do you manage it?
    Have you made nutritional changes?

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