S01E05 | Stiff Person Spectrum Disorders: A Comprehensive Review

Stiff-Person Spectrum Disorders: Autoimmunity, Diagnosis, and the Future of Treatment DOI: 10.5281/zenodo.16113887 ABSTRACT This episode explores Stiff-Person Spectrum Disorders (SPSD)—a rare, complex group of progressive autoimmune neurological conditions that cause debilitating muscle rigidity, painful spasms, and severe anxiety. From classic Stiff-Person Syndrome (SPS) to life-threatening variants like progressive encephalomyelitis with rigidity and myoclonus (PERM), we examine the underlying breakdown in GABAergic inhibition and the emerging evidence of both B-cell (antibody) and T-cell involvement. We explain the diagnostic triad, EMG findings, and the antibody profiles that define subtypes (GAD65, amphiphysin, glycine receptor, and others). The conversation also covers symptom management, immunotherapies including IVIG, rituximab, and CAR-T, and highlights the importance of multidisciplinary, patient-centered care. CLINICS & SERVICES Book an appointment: https://appointments.conciercare.net/... Learn more in our CONCIERCARE newsroom feature: https://health.conciercare.net/news/p... OBJECTIVES 1. What are the hallmark clinical features of Stiff-Person Spectrum Disorders (SPSD)? 2. How does impaired GABAergic inhibition lead to stiffness, spasms, and exaggerated startle responses? 3. What is the role of anti-GAD65 and other autoantibodies in the SPSD spectrum? 4. How do T cells and other immune mechanisms contribute to the pathogenesis? 5. What diagnostic tools—EMG, antibody testing, CSF analysis—confirm an SPSD diagnosis? 6. What is the evidence supporting symptomatic treatments like benzodiazepines and baclofen? 7. How do immunotherapies like IVIG, rituximab, and CAR-T cell therapy compare in terms of outcomes? 8. Why is quality of life often worse in SPSD patients than in Alzheimer’s, and what care models support better outcomes? Join the conversation—Have you or someone you know been affected by SPSD? What questions or experiences would you like to share? Comment below. ABOUT US CONCIERCARE is committed to advancing care for rare autoimmune neurological disorders through education, advocacy, and innovative treatment access. Learn more at: https://health.conciercare.net COPYRIGHT & DISCLAIMER https://health.conciercare.net/news/p... - Funding & Ethical Disclosures #StiffPersonSyndrome, #SPSD, #AutoimmuneNeurology, #GAD65, #CAR_TTherapy, #PERM, #Immunotherapy, #Neurology, #Neuroimmunology, #EMG, #Rituximab, #IVIG, #QualityOfLife, #PatientCenteredCare