Recordings from the 2025 Neuro-APP Symposium-Outpatient Arginine Infusions As A Preventive Treatment

Video Transcription

Video Summary

A Boston Children’s Hospital nurse practitioner explains MELAS, a maternally inherited mitochondrial disorder that commonly begins in childhood and can cause seizures, headaches, gastrointestinal symptoms, elevated lactate, and disabling stroke-like episodes. Diagnosis may involve genetic testing, blood or CSF lactate, and characteristic MRI findings; unlike ordinary strokes, MELAS episodes do not follow vascular territories. Standard care includes daily oral arginine and, during acute episodes, several days of high-dose intravenous arginine, which can cause metabolic complications.<br /><br />The presentation describes a patient with frequent strokes and hospitalizations despite standard treatment. In 2022, her team began twice-weekly outpatient IV arginine alongside oral therapy. Over the following two years, her MRI remained stable, arginine levels improved, and she had no emergency visits or admissions, with reported gains in speech, cognition, and mobility. A second child has recently started the protocol. The speaker emphasizes that these encouraging results are preliminary and calls for further research and broader evaluation.

Keywords

MELAS

mitochondrial disorder

arginine therapy

stroke-like episodes

genetic testing

MRI findings