Neuro: Becker Muscular Dystrophy: Free MSRA Podcast

🎧MSRA Free Podcast –Becker Muscular Dystrophy (BMD)High-yieldrevision on Becker muscular dystrophy for your MSRA prep! 🎓💪 🧬What is BeckerMuscular Dystrophy?📌Definition• X-linked recessiveneuromuscular disorder.• Caused bymutations in the dystrophin gene,resulting in partially functional dystrophin.• Milder and lateronset than Duchenne MD (DMD), typically after age 10.📌Etiology• Mutation on the X chromosome → reduced or abnormal dystrophin.• Inherited fromcarrier mothers or arises via new (sporadic) mutations.📌Risk Factors• Male sex (X-linkedrecessive pattern).• Positive familyhistory. 🧠Pathophysiology &Clinical Features📌Mechanism• Dystrophinsupports muscle cell membranes.• In BMD, it’sreduced/abnormal → muscle fibres become prone to damage → inflammation +progressive weakness.• Less severe thanDMD due to some retained dystrophin function.📌Symptoms• Progressive proximal muscle weakness (hips/thighs).• Difficultyrunning, climbing stairs, waddling gait.• Calf pseudohypertrophy – large but weak calves.• Myoglobinuria(after exercise), cramps, scoliosis, delayed milestones.📌Complications• Cardiomyopathy – major cause ofmorbidity/mortality.• Respiratory muscle weakness.• Cognitive/learning issues (less common thanDMD).• Female carriersmay have mild symptoms or cardiomyopathy. 🧪Investigations &Diagnosis📌Tests• CK (creatine kinase) – elevated 5–50x normal.• Genetic testing – dystrophin mutationconfirmation.• Muscle biopsy – may show reduced dystrophin.• EMG – to rule out other neuromusculardisorders.• Echocardiogram – assess heart function.• Genetic counselling – essential for family. 🛠️Management📌Multidisciplinarycare• Physio + OT forstrength, mobility, and contracture prevention.• Orthopaedics forscoliosis/contractures.• Cardiac monitoring – regular echo, ACEinhibitors or beta blockers.• Respiratory support – BiPAP or tracheostomy inadvanced cases.• Geneticcounselling, nutritional advice, psychosocial support.📌Important Notes• Steroids may be considered for some benefit.• Avoid certainanaesthetic agents due to malignant hyperthermiarisk.• Lifelong monitoring for heart/lung functioncritical. 📉Prognosis📌 Slower progression and longer ambulation than DMD.📌 Lifespan may be near normal, especially with earlydetection + management.📌 Cardiomyopathy = major cause of death. 🗂️Becker MuscularDystrophy Resources📄 Revision Noteshttps://www.passthemsra.com/topic/becker-muscular-dystrophy-revision-notes/🧠 Flashcardshttps://www.passthemsra.com/topic/becker-muscular-dystrophy-flashcards/💬 Accordion Q&Ahttps://www.passthemsra.com/topic/becker-muscular-dystrophy-accordion-qa-notes/🚀 Rapid Quizhttps://www.passthemsra.com/topic/becker-muscular-dystrophy-rapid-quiz/🎯 Practice Quizhttps://www.passthemsra.com/quizzes/becker-muscular-dystrophy/🎓 Full Neurology Coursehttps://www.passthemsra.com/courses/neurology-for-the-msra/ #MSRA#BeckerMuscularDystrophy #MSRARevision #Neurology #MSRAFlashcards #MSRAQANotes#PassTheMSRA #FreeMSRAResources #MuscularDystrophy #HighYieldMSRA