Unmasking Osmotic Demyelination Syndrome/Extrapontine Myelinolysis in Acute Intermittent Porphyria: Preventable Complications–Challenges in Diagnosis and Management

Acute intermittent porphyria (AIP) is a dominant mendelian disorder caused due to deficiency of the enzyme porphobilinogen deaminase. It classically presents with pain abdomen, hypertensive crisis, electrolyte imbalance, mostly hyponatremia, and neuropsychiatric involvement. We report a case of a 12...

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Main Authors: Vykuntaraju K Gowda, Priyanka A Nayak, Uddhava V Kinhal, Amaresh Roy, Varunvenkat M Srinivasan
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2025-05-01
Series:Annals of Indian Academy of Neurology
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Online Access:https://journals.lww.com/10.4103/aian.aian_920_24
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author Vykuntaraju K Gowda
Priyanka A Nayak
Uddhava V Kinhal
Amaresh Roy
Varunvenkat M Srinivasan
author_facet Vykuntaraju K Gowda
Priyanka A Nayak
Uddhava V Kinhal
Amaresh Roy
Varunvenkat M Srinivasan
author_sort Vykuntaraju K Gowda
collection DOAJ
description Acute intermittent porphyria (AIP) is a dominant mendelian disorder caused due to deficiency of the enzyme porphobilinogen deaminase. It classically presents with pain abdomen, hypertensive crisis, electrolyte imbalance, mostly hyponatremia, and neuropsychiatric involvement. We report a case of a 12-year-old boy with AIP who experienced an acute crisis and later developed altered sensorium and seizures. Upon evaluation, he was found to have severe hyponatremia, which was secondary to the syndrome of inappropriate antidiuretic hormone secretion. His condition was corrected with intravenous hypertonic saline, and his sodium levels normalized over 2–3 days. Despite the successful correction of sodium levels, he developed extrapyramidal symptoms a week later. Magnetic resonance imaging of the brain revealed extrapontine myelinolysis. He was treated with intravenous steroids, which led to significant improvement. At 1-month follow-up, there were no neurological deficits.
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institution Kabale University
issn 0972-2327
1998-3549
language English
publishDate 2025-05-01
publisher Wolters Kluwer Medknow Publications
record_format Article
series Annals of Indian Academy of Neurology
spelling doaj-art-0386e6a03e5b4e27b3324fd5a6349fda2025-08-20T03:28:58ZengWolters Kluwer Medknow PublicationsAnnals of Indian Academy of Neurology0972-23271998-35492025-05-0128343743910.4103/aian.aian_920_24Unmasking Osmotic Demyelination Syndrome/Extrapontine Myelinolysis in Acute Intermittent Porphyria: Preventable Complications–Challenges in Diagnosis and ManagementVykuntaraju K GowdaPriyanka A NayakUddhava V KinhalAmaresh RoyVarunvenkat M SrinivasanAcute intermittent porphyria (AIP) is a dominant mendelian disorder caused due to deficiency of the enzyme porphobilinogen deaminase. It classically presents with pain abdomen, hypertensive crisis, electrolyte imbalance, mostly hyponatremia, and neuropsychiatric involvement. We report a case of a 12-year-old boy with AIP who experienced an acute crisis and later developed altered sensorium and seizures. Upon evaluation, he was found to have severe hyponatremia, which was secondary to the syndrome of inappropriate antidiuretic hormone secretion. His condition was corrected with intravenous hypertonic saline, and his sodium levels normalized over 2–3 days. Despite the successful correction of sodium levels, he developed extrapyramidal symptoms a week later. Magnetic resonance imaging of the brain revealed extrapontine myelinolysis. He was treated with intravenous steroids, which led to significant improvement. At 1-month follow-up, there were no neurological deficits.https://journals.lww.com/10.4103/aian.aian_920_24acute intermittent porphyriaosmotic demyelination syndromeextrapontine myelinolysishyponatremia
spellingShingle Vykuntaraju K Gowda
Priyanka A Nayak
Uddhava V Kinhal
Amaresh Roy
Varunvenkat M Srinivasan
Unmasking Osmotic Demyelination Syndrome/Extrapontine Myelinolysis in Acute Intermittent Porphyria: Preventable Complications–Challenges in Diagnosis and Management
Annals of Indian Academy of Neurology
acute intermittent porphyria
osmotic demyelination syndrome
extrapontine myelinolysis
hyponatremia
title Unmasking Osmotic Demyelination Syndrome/Extrapontine Myelinolysis in Acute Intermittent Porphyria: Preventable Complications–Challenges in Diagnosis and Management
title_full Unmasking Osmotic Demyelination Syndrome/Extrapontine Myelinolysis in Acute Intermittent Porphyria: Preventable Complications–Challenges in Diagnosis and Management
title_fullStr Unmasking Osmotic Demyelination Syndrome/Extrapontine Myelinolysis in Acute Intermittent Porphyria: Preventable Complications–Challenges in Diagnosis and Management
title_full_unstemmed Unmasking Osmotic Demyelination Syndrome/Extrapontine Myelinolysis in Acute Intermittent Porphyria: Preventable Complications–Challenges in Diagnosis and Management
title_short Unmasking Osmotic Demyelination Syndrome/Extrapontine Myelinolysis in Acute Intermittent Porphyria: Preventable Complications–Challenges in Diagnosis and Management
title_sort unmasking osmotic demyelination syndrome extrapontine myelinolysis in acute intermittent porphyria preventable complications challenges in diagnosis and management
topic acute intermittent porphyria
osmotic demyelination syndrome
extrapontine myelinolysis
hyponatremia
url https://journals.lww.com/10.4103/aian.aian_920_24
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