Rajasekharan C, Anishkumar V, Suresh M K
Department of Internal Medicine, Medical College Hospital, Thiruvananthapuram, India.
BMJ Case Rep. 2011 Jul 28;2011:bcr0420114066. doi: 10.1136/bcr.04.2011.4066.
Ophthalmologic signs are the most often presenting symptoms of patients with myasthenia gravis (MG), most common being ptosis. However, ptosis may be caused by a variety of non-myasthenic disorders; hence, the distinction between them and myasthenic ptosis is critical. A battery of diagnostic tests are available to establish the diagnosis of MG, all having their pros and cons, some being life threatening. The authors present a case of 40-year-old male who presented to them with progressive weakness and double vision in which they were successful in narrowing the differentials to myasthenia by performing a simple bed side test.
眼科症状是重症肌无力（MG）患者最常出现的症状，最常见的是上睑下垂。然而，上睑下垂可能由多种非重症肌无力性疾病引起；因此，区分这些疾病与重症肌无力性上睑下垂至关重要。有一系列诊断测试可用于确诊MG，所有这些测试都有其优缺点，有些甚至会危及生命。作者介绍了一例40岁男性患者，该患者出现进行性肌无力和复视，他们通过一项简单的床边测试成功缩小了鉴别诊断范围，将病因确定为重症肌无力。
