title: The association between Lambert-Eaton myasthenic syndrome and small cell lung carcinoma.
abstract: Lambert-Eaton myasthenic syndrome (LEMS) is an autoimmune disorder mediated by autoantibodies to voltage-gated calcium channels. The disorder is diagnosed clinically on the basis of a triad of symptoms (proximal muscle weakness, hyporeflexia, and autonomic disturbance), supported by electrophysiological findings and the presence of autoantibodies. Between 40% and 62% of patients diagnosed with LEMS are found to have small-cell lung cancer (SCLC), almost all of whom develop neurological symptoms before their cancer is diagnosed. Prompt identification of LEMS and appropriate screening for SCLC is key to improving the outcome of both conditions. Here we review the pathophysiology and clinical management of LEMS, focusing particularly on the relationship with SCLC.
authors.affiliation: Department of Oncology, Oxford University Hospitals Trust, Churchill Hospital, Oxford, UK.
authors.forename: Sarah Ew
authors.initials: SE
authors.lastname: Briggs
authors.affiliation: Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford UK.
authors.forename: Paul
authors.initials: P
authors.lastname: Gozzard
authors.affiliation: Department of Oncology, Oxford University Hospitals Trust, Churchill Hospital, Oxford, UK.
authors.forename: Denis C
authors.initials: DC
authors.lastname: Talbot
keywords: Lambert–Eaton; autoimmune; small-cell lung cancer