Lambert-Eaton myasthenic syndrome in patients with small cell lung cancer: Report of five cases. 2015

Yueqiao Hao, and Jinmeng Hu, and Yajun Zhang, and Weichao Liu, and Shanshan Lu, and Min Zhang

OBJECTIVE To further evaluate the clinical characteristics of small cell lung cancer (SCLC) with Lambert-Eaton syndrome. METHODS We reviewed the patient database of our hospital from 2001 to 2013 to evaluate and analyze the patients of SCLC with Lambert-Eaton syndrome. The clinical characteristics and prognosis of the patients were analyzed in this retrospective study. RESULTS From reviewing our hospital database, we included 5 SCLC patients with Lambert-Eaton syndrome from 202 SCLC subjects with an incidence rate of 2.5%. The median age of the 5 patients was 52 (41-71) with 4 male and 1 female. The myasthenia symptom can be detected in 2-20 months before the pathology confirmation for small cell lung carcinoma. The general electromyography characteristics of Lambert-Eaton syndrome was reduction in action potential amplitude after repetitive peripheral never stimulation at low frequency and increased amplitude at high frequency. CONCLUSIONS Lambert-Eaton syndrome was sometimes found in patients with SCLC which was useful for diagnosis of non-small cell lung carcinoma in a relatively early stage.

UI MeSH Term Description Entries
D008175 Lung Neoplasms Tumors or cancer of the LUNG. Cancer of Lung,Lung Cancer,Pulmonary Cancer,Pulmonary Neoplasms,Cancer of the Lung,Neoplasms, Lung,Neoplasms, Pulmonary,Cancer, Lung,Cancer, Pulmonary,Cancers, Lung,Cancers, Pulmonary,Lung Cancers,Lung Neoplasm,Neoplasm, Lung,Neoplasm, Pulmonary,Pulmonary Cancers,Pulmonary Neoplasm
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D003131 Combined Modality Therapy The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used. Multimodal Treatment,Therapy, Combined Modality,Combined Modality Therapies,Modality Therapies, Combined,Modality Therapy, Combined,Multimodal Treatments,Therapies, Combined Modality,Treatment, Multimodal,Treatments, Multimodal
D004576 Electromyography Recording of the changes in electric potential of muscle by means of surface or needle electrodes. Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective

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