منابع مشابه
Lambert-Eaton myasthenic syndrome.
Lambert-Eaton myasthenic syndrome (LEMS) is an idiopathic or paraneoplastic syndrome producing antibodies against presynaptic voltage-gated P/Q calcium channels. This decreases calcium entry into the presynaptic terminal, which prevents binding of vesicles to the presynaptic membrane and acetylcholine release. LEMS is most often associated with small cell lung cancer, although idiopathic presen...
متن کاملClassic diseases revisited Lambert-Eaton myasthenic syndrome
The Lambert-Eaton myasthenic syndrome is a neuromuscular disorder characterised by defective neurotransmitter release at autonomic neurones and presynaptic terminals of the neuromuscular junction. It is caused by an IgG autoantibody formed against especially the P/Q type of voltagegated calcium channels (VGCC) which is an essential component of the mechanism of neurotransmitter release. Many pa...
متن کاملLambert-Eaton myasthenic syndrome involving the diaphragm.
Inspiratory muscle function was assessed in a patient with the Lambert-Eaton myasthenic syndrome that developed in association with a bronchogenic carcinoma. Repetitive maximal inspiratory pressure measurements and the electromyographic response to phrenic nerve stimulation established involvement of the inspiratory muscles in general and the diaphragm specifically in this condition.
متن کاملAbnormalities of autonomic function in the Lambert Eaton myasthenic syndrome.
Two cases of Lambert Eaton syndrome unassociated with an underlying malignancy are described. Both had mild autonomic symptoms but markedly abnormal autonomic function tests. These results are suggestive of a widespread defect in cholinergic transmission in addition to that at the skeletal neuromuscular junction.
متن کاملRespiratory muscle weakness in the Lambert-Eaton myasthenic syndrome.
Respiratory muscle function was assessed in six patients with the Lambert-Eaton myasthenic syndrome. Five had histologically proved small cell carcinoma of the lung; the sixth later developed metastases from an unknown primary site. Two patients had ventilatory failure, one without respiratory symptoms; another, who had emphysema, had dyspnoea and orthopnoea. The remaining three patients had no...
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ژورنال
عنوان ژورنال: Journal of the Neurological Sciences
سال: 2019
ISSN: 0022-510X
DOI: 10.1016/j.jns.2019.10.078