How to manage MuSK antibody-positive myasthenic crisis during pregnancy? = Hogyan kezeljük a terhesség alatt jelentkező MuSK-antitest-pozitív myastheniás krízist?

Çetiner, Mustafa and Akdağ, Gönül and Akkoyun Arikan, Fatma and Canbaz Kabay, Sibel (2022) How to manage MuSK antibody-positive myasthenic crisis during pregnancy? = Hogyan kezeljük a terhesség alatt jelentkező MuSK-antitest-pozitív myastheniás krízist? IDEGGYOGYASZATI SZEMLE / CLINICAL NEUROSCIENCE, 75 (3-4). pp. 141-144. ISSN 0019-1442

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Abstract

Myasthenia gravis (MG) is an autoimmune disease that is characterised by the formation of antibodies against acetylcholine receptors in the postsynaptic membrane of the neuromuscular junction. The course of the disease cannot be predicted during pregnancy. A subtype of MG with positive muscle-specific receptor tyrosine kinase (anti-MuSK) antibodies exhibits more localised clinical characteristics and a poor response to treatment compared with the disease subtype that involves positivity for acetylcholine receptor antibodies. Myasthenic crisis is more frequently observed in anti-MuSK-positive myasthenia patients. Anti-MuSK-positive myasthenic crisis management is very difficult and a risky situation during pregnancy. The reported case was 30 years old, female, 9 weeks pregnant and musk antibody positive. She stopped her treatment without asking her doctor because she was planning pregnancy in the 6-month period before her hospitalization. She was intubated for a long time in the intensive care unit due to myasthenic crisis and was very resistant to treatment. During this period, her pregnancy was terminated due to fetal anomaly. Plasmapheresis, IVIg and immunosuppressive treatments were applied. Our patient was discharged after a period of about 10 weeks. We share our treatment management.

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