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“Clinical Reasoning in Refractory Catatonia With Elevated Anti–Thyroid Peroxidase Antibodies", to Journal of General Internal Medicine


Abstract

This clinical reasoning case report describes an adult patient without prior psychiatric history who developed acute behavioral and cognitive changes progressing to mutism, rigidity, stereotyped movements, poor oral intake, and functional decline. Catatonia is a neuropsychiatric syndrome associated with psychiatric, neurologic, and medical conditions, and refractory or atypical presentations warrant evaluation for secondary causes. Extensive infectious, metabolic, structural, epileptic, autoimmune, and paraneoplastic evaluations were unrevealing. Thyroid function remained normal; however, anti–thyroid peroxidase antibodies were elevated. Catatonic symptoms persisted despite high-dose benzodiazepine therapy, prompting electroconvulsive therapy (ECT). Given the refractory course and concern for a possible autoimmune contribution, adjunctive intravenous corticosteroids were administered. The patient subsequently demonstrated marked improvement in catatonic symptoms following combined ECT and corticosteroid treatment, although residual cognitive deficits persisted. This case highlights the importance of systematically evaluating secondary causes of refractory catatonia and cautiously interpreting thyroid autoantibodies within the broader clinical context. Although treatment response cannot establish causality, adjunctive immunotherapy may warrant consideration in carefully selected patients after alternative etiologies have been excluded.

Keywords: catatonia; autoimmune encephalopathy; anti-thyroid peroxidase antibodies; electroconvulsive therapy; corticosteroids

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Patient Perspective of Quality of Life During Home Parenteral Nutrition and Post-Transplant in Children and Adult

2023 · University of Illinois College of Medicine

Patient-perspective presentation exploring quality-of-life considerations across home parenteral nutrition, pediatric post-transplant care, transition to adult care and long-term adult transplant care.