期刊
MUSCLE & NERVE
卷 56, 期 3, 页码 441-444出版社
WILEY
DOI: 10.1002/mus.25526
关键词
acetylcholine receptor antibody; dropped head; head-drop; late-onset; MuSK; myasthenia gravis; respiratory weakness
Introduction: Head-drop is often encountered in myasthenia gravis (MG) patients, but its frequency and clinical course have not been studied systematically. Methods: In a retrospective study of a cohort of MG patients seen over a period of 11 years in a tertiary medical center, we assessed the clinical characteristics of patients who had head-drop. Results: Of 146 generalized MG patients, 15 had head-drop during the course of their disease. Head-drop patients had older age of onset than those who did not have head-drop (mean age of onset 59.1 vs. 42.3 years) and were predominantly men. Head-drop was present in 23% of patients > 60 versus 6% of those < 60 years, and it improved in 9 of 11 patients with treatment directed to generalized MG. Conclusions: Head-drop is a common, treatment-responsive manifestation of late-onset MG.
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