Paediatrics: Down Syndrome: Free MSRA Podcast

⚕️ FREE MSRA PODCAST – Down Syndrome🎧 A clear, high-yield breakdown of this common chromosomal condition – perfect for exam prep and real-life clinical scenarios.🧠 Key Learning Points📌 Definition• Down syndrome (Trisomy 21) is a genetic disorder caused by an extra copy of chromosome 21, resulting in intellectual disability and characteristic physical features.📌 Causes & Risk Factors• Most commonly due to non-disjunction (94%)• Others: Translocation (3–5%), Mosaicism (1–2%)• Risk factors:Advanced maternal ageParental balanced translocationPrevious child with Down syndrome🧠 Mnemonic: “MNT” – Mosaicism, Non-disjunction, Translocation📌 Pathophysiology• Extra chromosome 21 → gene overexpression• Alters normal embryonic development across multiple systems• Disrupts gene regulation pathways (partly understood)📌 Symptoms• Intellectual disability• Hypotonia (floppiness in infancy)• Distinct facial features: flat face, upslanting eyes, epicanthic folds, small ears, protruding tongue• Single palmar crease, sandal gap toes• Developmental delays🧠 Mnemonic: “HAPPY FACE” – Hypotonia, Almond eyes, Protruding tongue, Palmar crease, Yawning delays, Facial flatness, Absent bridge (nasal), Congenital heart defects, Eyes with Brushfield spots📌 Differential Diagnosis• Turner syndrome• Fragile X syndrome• Williams syndrome• Other chromosomal abnormalities with developmental delay📌 Diagnosis• Postnatal: Clinical features + confirmed by karyotyping• Prenatal:Screening: NIPT, combined or quadruple testsDiagnostic: CVS or amniocentesis (1% miscarriage risk)🧠 Tip: Always confirm postnatally if not picked up in screening📌 Management• No cure – focus on supportive care and surveillance• MDT approach:Early developmental support (SLT, OT, physio)Health surveillance for hypothyroidism, vision, hearing, cardiac defectsEducational and psychological supportGenetic counselling for families📋 NICE guidance encourages proactive annual reviews📌 Complications• Congenital heart disease• Vision/hearing problems• Hypothyroidism• Coeliac disease• Blood disorders: transient myeloproliferative disorder, increased childhood leukaemia• Increased risk of early-onset Alzheimer’s• Respiratory infections📌 Prognosis• Life expectancy has improved significantly (median ~50s)• With early intervention and lifelong support, many lead fulfilling lives📎 More MSRA Resources for Down Syndrome📝 Revision Notes: https://www.passthemsra.com/topic/down-syndrome-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/down-syndrome-flashcards/💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/down-syndrome-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/down-syndrome-rapid-quiz/🎓 Full Course: https://www.passthemsra.com/courses/paediatrics-for-the-msra/#MSRA #MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards #MSRAQandANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment #MSRAOnlineRevision #MSRARevisionWebsite #DownSyndromeMSRA