Lambert-Eaton myasthenic syndrome without anti-calcium channel antibody: adverse effect of calcium antagonist diltiazem.
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Lambert-Eaton myasthenic syndrome without anti-calcium channel antibody: adverse effect of calcium antagonist diltiazem.
A 59 year old man with ischaemic heart disease, developed the clinical and electromyographic changes of the Lambert-Eaton myasthenic syndrome after taking calcium antagonist, diltiazem. The symptoms appeared periodically with a rise and fall in serum level of diltiazem. Extensive search was made for systemic neoplasms and autoimmune diseases without success. Serum antibody to voltage operated c...
متن کاملLambert-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...
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UNLABELLED INTRODUCTION Lambert-Eaton myasthenic syndrome is a rare disorder and it is known as a paraneoplastic neurological syndrome. Small cell lung cancer often accompanies this syndrome. Lambert-Eaton myasthenic syndrome associated with lung adenocarcinoma is extremely rare; there are only a few reported cases worldwide. CASE PRESENTATION A 75-year-old Japanese man with a past history...
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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.
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1992
ISSN: 0022-3050
DOI: 10.1136/jnnp.55.5.409