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Neuropathy in erythropoietic protoporphyrias
S A Muley1, H A Midani, J M Rank
1Department of Neurology, University of Minnesota, Minneapolis 55455, USA.
Neurology
|July 23, 1998
Summary
Peripheral neuropathy (PN) is a rare complication of erythropoietic protoporphyria (EPP). Early recognition of PN in EPP patients is crucial for timely management and favorable outcomes.
Area of Science:
- Biochemistry
- Neurology
- Genetics
Background:
- Erythropoietic protoporphyria (EPP) is a rare genetic disorder of heme biosynthesis.
- Peripheral neuropathy (PN) is an uncommon complication associated with EPP, particularly in cases with hepatic involvement.
Observation:
- This study details three episodes of PN in two patients diagnosed with EPP.
- Electrophysiologic studies were conducted to characterize the neuropathy in these patients.
Findings:
- Peripheral neuropathy in EPP presents similarly to that observed in acute intermittent porphyria.
- Neuropathy is associated with hepatic failure and elevated levels of free erythrocyte protoporphyrin or serum protoporphyrin.
Implications:
- Recognizing PN as a complication of EPP is essential for accurate diagnosis and treatment.
- Prompt identification and management of PN in EPP patients can lead to a good long-term prognosis.
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