Amantadine-Responsive, Benzodiazepine-Resistant Catatonia in an Adolescent With Autism Spectrum Disorder.
BACKGROUND Catatonia is a severe neuropsychiatric syndrome increasingly recognized in autism spectrum disorder (ASD), where symptom overlap can delay diagnosis. In pediatric populations, it is associated with significant morbidity and requires prompt intervention. Benzodiazepines and electroconvulsive therapy (ECT) are...