Age and prognosis in breast cancer.

since ischaemia or procaine block of peripheral nerves usually abolishes it.3 4Toxic reactions to penicillamine, especially haematological, renal, and gastrointestinal disturbances, occur in patients with rheumatoid arthritis. Neurological complications are relatively uncommon. Polymyositis and myasthenia gravis have been reported, but both were excluded in our patient. The decremental EMG response found only at higher stimulation rates, in the absence of single fibre EMG abnormalities, is unlike that found in myasthenia gravis or EatonLambert syndrome.5 To recognise neuromyotonia requires careful clinical and EMG examination since it is easily mistaken for myasthenia gravis.