Neurology Exam Prep Podcast Episode 6 - Neuromuscular Disorders Part II
Jan 23, 2020
Dr. Jeffrey Dewey, a neurologist with expertise in neuromuscular disorders, returns to discuss a range of fascinating topics. He dives into myasthenia gravis, highlighting antibody mechanisms and clinical symptoms such as fatigable weakness. The conversation covers diagnostic techniques like the ice pack test and EMG. Furthermore, he sheds light on congenital myasthenic syndromes, inflammatory myopathies, and conditions like muscular dystrophies. Dewey also examines glycogenosis and lipid metabolism disorders with engaging anecdotes for better understanding.
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Inflammatory Myopathies Diagnosis
- Differentiate polymyositis and dermatomyositis with clinical skin findings and muscle biopsy location of inflammation.
- Treat with immunosuppression and screen for underlying neoplasm especially with dermatomyositis.
Glycogenoses and Exercise Intolerance
- Glycogen storage diseases cause early exercise intolerance and muscle cramps leading to rhabdomyolysis.
- McArdle's disease (type 5) and Pompe's disease (type 2) are important examples affecting carbohydrate metabolism.
Lipid Metabolic Myopathies
- Disorders of lipid metabolism cause exercise intolerance after prolonged exertion, distinct from glycogenoses.
- CPT2 deficiency is the most common lipid metabolic myopathy with exercise-induced cramping and rhabdomyolysis.