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. Perfect for 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 defect impairs DNA repair → genomic instability.• Rapidly dividing cells (cerebellum, immune cells) most affected.• Inheritance: both parents must be carriers (autosomal recessive).📌 Who’s at risk?• Children of carrier parents (risk ↑ with consanguinity).• Prevalence UK: 1 in 100,000–300,000.• Carriers: ↑ risk of cancers (notably breast cancer in females), ↓ life expectancy.📌 Clinical Features• Onset in early childhood (age 1–4): – Progressive ataxia (worsening coordination, unsteady gait) – Conjunctival telangiectasia (red lines in eyes, cheeks, ears) – Recurrent respiratory 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: Cerebellar atrophy.• Immunology: Immunoglobulin levels.• Memory tip: G-L-I-M (Genetics, Labs, Immunology, MRI).📌 Management• Supportive only (no cure): – Multidisciplinary team: neuro, immuno, physio, oncology, etc. – Physio/OT/speech therapy – Immunoglobulin replacement – Prophylactic antibiotics – Cancer screening – Minimise radiation exposure (avoid X-rays/CT) – Family/genetic counselling – Palliative/supportive care as disease progresses📌 Prognosis & Complications• Progressive neurodegeneration (wheelchair use common in teens)• Median survival: 20s–30s• Common complications: respiratory failure, recurrent infections, cancer, swallowing/nutritional issues• Carriers: ↑ breast cancer risk in females📎 More MSRA Resources for 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