PMID- 28601810 OWN - NLM STAT- MEDLINE DCOM- 20170911 LR - 20190127 IS - 1468-330X (Electronic) IS - 0022-3050 (Linking) VI - 88 IP - 9 DP - 2017 Sep TI - Pattern of ocular involvement in myasthenia gravis with MuSK antibodies. PG - 761-763 LID - 10.1136/jnnp-2017-315782 [doi] AB - BACKGROUND: Myasthenia gravis (MG) with antibodies to the muscle-specific kinase (MuSK) has a characteristic phenotype. Ocular manifestations have not been systematically evaluated. OBJECTIVE: To investigate the features of extrinsic ocular muscle involvement in patients with MuSK-MG. METHODS: We retrospectively evaluated the prevalence, time of onset, clinical pattern and outcome of ocular symptoms in 82 patients with a clinical follow-up >/=2 years. RESULTS: Ocular manifestations were observed in 79 patients (96.4%) and were the presenting symptoms in 48 (58.5%). Intermittent diplopia with subtle ophthalmoparesis was the most common complaint, ptosis was generally symmetrical and conjugated gaze paresis occurred in 35% of the patients. Ocular manifestations responded well to prednisone and partially to symptomatic treatment. A few patients developed chronic symmetrical ophthalmoparesis, associated with persistent weakness in other muscle groups. All patients with ocular presentation progressed to generalised disease, though weakness spread to other muscle groups was considerably delayed in a few cases. CONCLUSIONS: In MG with antibodies to MuSK, ocular manifestations were as frequent as in other disease subtypes. Symmetrical ophthalmoparesis with conjugated gaze limitation was rather common and associated with low functional disability. A proportion of these patients developed chronic eye muscle paresis. CI - (c) Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted. FAU - Evoli, Amelia AU - Evoli A AD - Institute of Neurology, Catholic University, Fondazione Policlinico A. Gemelli, Rome, Italy. FAU - Alboini, Paolo E AU - Alboini PE AD - Institute of Neurology, Catholic University, Fondazione Policlinico A. Gemelli, Rome, Italy. FAU - Iorio, Raffaele AU - Iorio R AD - Institute of Neurology, Catholic University, Fondazione Policlinico A. Gemelli, Rome, Italy. FAU - Damato, Valentina AU - Damato V AD - Institute of Neurology, Catholic University, Fondazione Policlinico A. Gemelli, Rome, Italy. FAU - Bartoccioni, Emanuela AU - Bartoccioni E AD - Institute of General Pathology, Catholic University, Fondazione Policlinico A. Gemelli, Rome, Italy. LA - eng PT - Journal Article DEP - 20170610 PL - England TA - J Neurol Neurosurg Psychiatry JT - Journal of neurology, neurosurgery, and psychiatry JID - 2985191R RN - 0 (Anti-Inflammatory Agents) RN - 0 (Autoantibodies) RN - 0 (Receptors, Cholinergic) RN - EC 2.7.10.1 (MUSK protein, human) RN - EC 2.7.10.1 (Receptor Protein-Tyrosine Kinases) RN - VB0R961HZT (Prednisone) SB - IM MH - Adolescent MH - Adult MH - Anti-Inflammatory Agents/therapeutic use MH - *Autoantibodies MH - Child MH - Child, Preschool MH - Diplopia/epidemiology MH - Eye MH - Female MH - Humans MH - Male MH - Myasthenia Gravis/*diagnosis/*immunology MH - Ophthalmoplegia/epidemiology MH - Prednisone/therapeutic use MH - *Receptor Protein-Tyrosine Kinases MH - *Receptors, Cholinergic MH - Retrospective Studies OTO - NOTNLM OT - MuSK antibodies OT - immunosuppression OT - myasthenia gravis OT - ocular myasthenia OT - ophthalmoparesis COIS- Competing interests: None declared. EDAT- 2017/06/12 06:00 MHDA- 2017/09/12 06:00 CRDT- 2017/06/12 06:00 PHST- 2017/02/03 00:00 [received] PHST- 2017/04/10 00:00 [revised] PHST- 2017/04/11 00:00 [accepted] PHST- 2017/06/12 06:00 [pubmed] PHST- 2017/09/12 06:00 [medline] PHST- 2017/06/12 06:00 [entrez] AID - jnnp-2017-315782 [pii] AID - 10.1136/jnnp-2017-315782 [doi] PST - ppublish SO - J Neurol Neurosurg Psychiatry. 2017 Sep;88(9):761-763. doi: 10.1136/jnnp-2017-315782. Epub 2017 Jun 10.