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The Role of Folate Deficiency as a Potential Risk Factor for Nontraumatic Anterior Spinal Artery Syndrome in an Adolescent Girl.
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https://doi.org/10.3390/brainsci12111470Abstract
Nontraumatic anterior spinal artery syndrome (ASAS) is an extremely rare clinical condition in pediatric populations with a mostly unknown underlying etiology. Here we discuss the case of a previously healthy 14-year-old girl presenting with sudden onset acute flaccid paralysis to the emergency department. A spinal STIR/DWI MRI revealed hyperintensities extending from cervical vertebrae C3-6, consistent with the diagnosis of ASAS. In order to determine any precipitating causes of ASAS, we also extensively investigated established potential risk factors for ASAS in our patient and noticed that she had a marked folate deficiency requiring folic acid supplementation to prevent future episodes of ASAS as well as to repair the patients injured spinal cord. Interestingly, the patient did not display elevated levels of homocysteine nor did she possess the three pathogenic MTHFR mutations characteristic of ASAS. Although her folate deficiency did not cause responsive hyperhomocysteinemia, and she did not have pathogenic MTHFR mutations that impair the function of methylenetetrahydrofolate reductase in folate cycle, we suggest that isolated folate deficiency may play a role in adolescent cases of ASAS that, once identified, would require prompt identification and early intervention to improve the prognosis of these patients.
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