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Published on: November 20, 2015
Hyperpyrexia resulting in encephalopathy in a 14-month-old patient with cblC disease
Sarah Catharina Grünert1, Brian Fowler, Andrea Superti-Furga
1Centre for Pediatrics and Adolescent Medicine, University of Freiburg Hospital, Germany. sarah.gruenert@uniklinik-freiburg.de
Insights
Cobalamin C (cblC) defect, a metabolic disorder, can cause severe neurological issues. A patient experienced an acute encephalopathic crisis following a high fever, leading to significant brain damage.
Area of Science:
- Biochemistry
- Genetics
- Neurology
Background:
- Cobalamin C (cblC) defect is the most common inherited disorder of cobalamin metabolism.
- It typically presents with progressive neurological, hematological, and ophthalmological symptoms.
Observation:
- A cblC patient diagnosed neonatally showed near-normal development in the first year.
- At 14 months, the patient suffered an acute encephalopathic crisis during a febrile illness.
Findings:
- The crisis resulted in severe mental retardation and marked cerebral atrophy.
- This hyperacute presentation is unusual for cblC defects.
Implications:
- The case raises questions about whether the cblC defect predisposed the brain to fever-induced damage.
- Further research is needed to understand the link between hyperpyrexia and cblC-related encephalopathy.
Abstract:
Cobalamin C (cblC) defect, the most common inborn error of cobalamin metabolism, is a multisystem disorder usually presenting with progressive neurological, haematological and ophthalmological signs. We report on a cblC patient diagnosed in the newborn age who developed nearly normal during the first year of life. During an upper respiratory tract infection with severe hyperpyrexia at the age of 14months he developed an acute encephalopathic crisis resulting in severe mental retardation and marked internal and external cerebral atrophy. Hyperacute encephalopathic crises have not been observed so far in patients with cblC defect. It remains unclear, if this association is incidental or if the underlying metabolic defect may have predisposed the brain tissue to hyperpyrexia-induced damage.
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