What is the treatment for acute exacerbation of myasthenia gravis?

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Multiple Choice

What is the treatment for acute exacerbation of myasthenia gravis?

In an acute exacerbation of myasthenia gravis, the goal is to rapidly reduce the harmful antibodies at the neuromuscular junction and restore transmission so weakness improves quickly. The most effective rapid therapies are plasma exchange (plasmapheresis) or intravenous immunoglobulin (IVIG). Plasmapheresis physically removes circulating anti-AChR antibodies and other pathogenic factors, often producing improvement within days. IVIG modulates the immune response and decreases the effect of autoantibodies, offering a quick stabilization when plasmapheresis isn’t available or as a bridge to longer-term treatments. Both are standard approaches during a myasthenic crisis and are used alongside respiratory support as needed. Other options don’t address the autoimmune mechanism directly. Beta-blocker therapy isn’t a treatment for MG crisis and can complicate the clinical picture. Levodopa is for Parkinson disease, not MG. Antibiotics may be necessary to treat an underlying infection that precipitated a crisis, but many antibiotics can worsen MG and they are not the primary treatment for the acute autoimmune process.

In an acute exacerbation of myasthenia gravis, the goal is to rapidly reduce the harmful antibodies at the neuromuscular junction and restore transmission so weakness improves quickly. The most effective rapid therapies are plasma exchange (plasmapheresis) or intravenous immunoglobulin (IVIG). Plasmapheresis physically removes circulating anti-AChR antibodies and other pathogenic factors, often producing improvement within days. IVIG modulates the immune response and decreases the effect of autoantibodies, offering a quick stabilization when plasmapheresis isn’t available or as a bridge to longer-term treatments. Both are standard approaches during a myasthenic crisis and are used alongside respiratory support as needed.

Other options don’t address the autoimmune mechanism directly. Beta-blocker therapy isn’t a treatment for MG crisis and can complicate the clinical picture. Levodopa is for Parkinson disease, not MG. Antibiotics may be necessary to treat an underlying infection that precipitated a crisis, but many antibiotics can worsen MG and they are not the primary treatment for the acute autoimmune process.

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