Related Experiment Video
Updated: Apr 30, 2026

Continuous Video Electroencephalogram during Hypoxia-Ischemia in Neonatal Mice
Published on: June 11, 2020
A confusing coincidence: neonatal hypoglycemic seizures and hyperekplexia
Nihat Demir1, Murat Doğan2, Sanem Yılmaz3
1Department of Pediatrics, Division of Neonatology, Yuzuncu Yil University School of Medicine, 65200 Van, Turkey ; Hospital of the Yuzuncu Yil University, 65250 Van, Turkey.
Hyperekplexia, a rare neurologic disorder causing exaggerated startle responses, can be mistaken for epilepsy. This case highlights diagnostic challenges when hyperekplexia coexists with hypoglycemic convulsions.
Area of Science:
- Neurology
- Genetics
- Clinical Medicine
Background:
- Hyperekplexia is a rare neurologic disorder characterized by exaggerated startle responses.
- It stems from genetic defects in glycine receptors or other etiologies like inflammation or tumors.
- The condition involves impaired inhibitory mechanisms or overactive excitatory pathways, often misdiagnosed as epilepsy.
Purpose of the Study:
- To present a challenging case of coexisting hypoglycemic convulsions and hyperekplexia.
- To underscore the diagnostic difficulties arising from overlapping symptoms.
- To emphasize the importance of considering metabolic disturbances in hyperekplexia diagnosis.
Main Methods:
- Case report presentation.
- Clinical evaluation of a patient with neurological symptoms.
- Differential diagnosis considering epilepsy and metabolic disorders.
Main Results:
- A patient presented with symptoms mimicking epileptic seizures.
- The patient was diagnosed with both hyperekplexia and hypoglycemic convulsions.
- The coexistence of these conditions led to significant diagnostic challenges.
Conclusions:
- Hyperekplexia and hypoglycemic convulsions can present concurrently, complicating diagnosis.
- Thorough investigation is crucial to differentiate hyperekplexia from epileptic seizures, especially when metabolic factors are involved.
- This case highlights the need to consider a broader range of etiologies in patients with startle disorders.
Related Concept Videos
Seizures: Classification
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Epilepsy ll: Types
Seizures l: Introduction
Seizures ll: Types
Epilepsy and Seizures: Overview
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
Inborn Errors of Metabolism

