BACKGROUND The most sensitive diagnostic criterion of myasthenia gravis is a decrement in the muscular response to repetitive stimulation. The authors hypothesized that myasthenia gravis patients who show a train-of-four ratio (T4/T1) < 0.9 in the preanesthetic period will have increased sensitivity to nondepolarizing neuromuscular blocking agents compared with myasthenia gravis patients with p...

Normal cardiovascular regulation requires intact baroreflex regulation. The efferent portion of the baroreflex arc, which is composed of parasympathetic and sympathetic nerves, is particularly important in this regard. Autonomic failure ensues when the efferent arc is interrupted. Neuronal degeneration within the brain or in the periphery,1,2 enzymatic defects in catecholamine synthesis,3 and a...

OBJECTIVE Impaired parasympathetic modulation increases the risk for sudden death in patients with heart diseases. Therefore, cholinergic stimulation may have a potential protective role. The aim of this study was to verify the effects of pyridostigmine bromide, a reversible cholinesterase inhibitor, on heart rate (HR), blood pressure (BP), HR and BP variability, and baroreflex sensitivity (BS)...

how to cite this article: talebian a, goudarzi rm, mohammadzadeh m , mirzadeh as. vincristine-induced cranial neuropathy. iran j child neurol. 2014 winter; 8(1):66-68.   abstract vincristine (vcr) is a vinca alkaloid that is used for treatment of many malignancies. the vinca alkaloids are neurotoxic, usually causing a peripheral neuropathy, but cranial neuropathies are rare as side effects.  de...