Neuro: Ataxia Telangiectasia: Free MSRA Podcast

🧬FREE MSRA PODCAST –Ataxia Telangiectasia: The Classic ‘A + T + I + C’ Syndrome Explained!🎧 Struggling to memorise the key features of AT?This episode breaks down the essential facts for exams and practice. Perfectfor MSRA neurology revision—listen, learn, and recall! 🧠Key Learning Points📌 Definition• AT = rare,inherited (autosomal recessive) disorder due to ATM gene mutation.• Classic triad: Ataxia (progressive loss of coordination), Telangiectasia (dilated vessels, eyes/skin), Immunodeficiency, Cancer risk.📌 Causes & Pathophysiology• ATM gene defectimpairs DNA repair → genomic instability.• Rapidly dividingcells (cerebellum, immune cells) most affected.• Inheritance: bothparents must be carriers (autosomal recessive).📌 Who’s at risk?• Children ofcarrier parents (risk ↑ with consanguinity).• Prevalence UK: 1in 100,000–300,000.• Carriers: ↑ riskof cancers (notably breast cancer in females), ↓ life expectancy.📌 Clinical Features• Onset in earlychildhood (age 1–4): – Progressiveataxia (worsening coordination, unsteady gait) – Conjunctivaltelangiectasia (red lines in eyes, cheeks, ears) – Recurrentrespiratory infections – Immunodeficiency(low IgA/IgG, lymphopenia) – High cancer risk(esp. lymphoma/leukaemia)• Other signs:dysarthria, dysphagia, oculomotor apraxia, delayed development, growth failure,radiation sensitivity.📌 Diagnosis• Gold standard:Genetic testing (ATM gene mutation).• Labs: ↑Alpha-fetoprotein (AFP), ↓ immunoglobulins, lymphocyte subsets.• MRI: Cerebellaratrophy.• Immunology:Immunoglobulin levels.• Memory tip: G-L-I-M (Genetics, Labs, Immunology, MRI).📌 Management• Supportive only(no cure): – Multidisciplinaryteam: neuro, immuno, physio, oncology, etc. – Physio/OT/speechtherapy – Immunoglobulinreplacement – Prophylacticantibiotics – Cancer screening – Minimiseradiation exposure (avoid X-rays/CT) – Family/geneticcounselling –Palliative/supportive care as disease progresses📌 Prognosis & Complications• Progressiveneurodegeneration (wheelchair use common in teens)• Median survival:20s–30s• Commoncomplications: respiratory failure, recurrent infections, cancer,swallowing/nutritional issues• Carriers: ↑ breastcancer risk in females 📎More MSRA Resourcesfor Ataxia Telangiectasia:📝 Revision Notes: https://www.passthemsra.com/topic/ataxia-telangiectasia-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/ataxia-telangiectasia-flashcards/💬 Accordion Q&A: https://www.passthemsra.com/topic/ataxia-telangiectasia-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/ataxia-telangiectasia-rapid-quiz/🎓 Neurology Course: https://www.passthemsra.com/courses/neurology-for-the-msra/ #MSRA #MSRARevision#MSRATextbook #MSRAQuiz #MSRAFlashcards #MSRAAccordions #AtaxiaTelangiectasia#Genetics #Paediatrics #Neurology #DNARepair #Immunodeficiency #CancerRisk#GPExam #MSRAOnlineRevision