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Published on: May 16, 2015
Acute Infantile Encephalopathy Predominantly Affecting The Frontal Lobes (AIEF)
1Department of Pediatric Neurology, P D Hinduja Hospital, Veer Savarkar Marg, Mahim (west), Mumbai, 400016, Maharashtra, India. drsarbaniraha@rediffmail.com
Insights
Acute Infantile Encephalopathy Predominantly Affecting the Frontal Lobes (AIEF) can cause severe cognitive decline. This study presents two pediatric cases of AIEF, highlighting its frontal lobe impact and association with Influenza B.
Area of Science:
- Neurology
- Pediatrics
- Infectious Diseases
Background:
- Acute Infantile Encephalopathy Predominantly Affecting the Frontal Lobes (AIEF) is an emerging neurological condition.
- Understanding AIEF is crucial for early diagnosis and intervention in affected children.
Observation:
- Two pediatric cases of AIEF with bifrontal involvement during acute febrile encephalopathy are detailed.
- Case 1: A 1-year-old boy with hyperpyrexia, seizures, and Influenza B infection showed bilateral frontal lobe involvement and subsequent cognitive decline.
- Case 2: A 6-year-old boy presented with frontal lobe dysfunction after status epilepticus, with imaging revealing superior frontal lesions.
Findings:
- Both cases demonstrate significant bilateral frontal lobe pathology in acute encephalopathy.
- Influenza B infection was identified as a potential trigger in one of the presented AIEF cases.
- Neuroimaging confirmed bifrontal involvement, including gyral swelling in one patient.
Implications:
- These findings contribute to the limited literature on AIEF, emphasizing its distinct frontal lobe predilection.
- Early recognition of AIEF is vital for managing cognitive and behavioral sequelae in children.
- Further research into AIEF pathogenesis and long-term outcomes is warranted.
Abstract:
Acute Infantile Encephalopathy Predominantly Affecting the Frontal Lobes (AIEF) is a relatively recent described entity. This article includes case reports of two patients who had bifrontal involvement during acute febrile encephalopathy. Case 1 describes a 1-y-old boy who presented with hyperpyrexia and dialeptic seizures. Imaging revealed significant bilateral frontal lobe involvement while serology proved presence of Influenza B infection. Over a period of one wk, he recovered with significant cognitive decline and perseveratory behavior. Another 6-y-old boy presented with language and behavioral problems suggestive of frontal dysfunction after recovering from prolonged impairment of consciousness following a convulsive status epilepticus. Bilateral superior frontal lesions with gyral swelling was evident on neuroimaging. These cases are among the very few cases of AIEF described in recent literature and the article also reviews this unique subtype of acute encephalopathy.
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