Patients with multiple sclerosis (MS) disease activity have a higher rate of thinning of the ganglion cell/inner plexiform (GCIP) layer of the eye, researchers reported in the January 1 Neurology. Annual rates of GCIP thinning may be highest among patients with new gadolinium-enhancing lesions, new T2 lesions, and disease duration of less than five years. The investigators performed spectral-domain optical coherence tomography scans every six months on 164 patients with MS and 59 healthy controls. The mean follow-up time was 21.1 months. Annual GCIP thinning occurred 42% faster in patients with relapses, 54% faster in patients with new gadolinium-enhanced lesions, and 36% faster in patients with new T2 lesions.
Vaccination with a monovalent AS03 adjuvanted pandemic A/H1N1 2009 influenza vaccine does not appear to be associated with an increased risk of epileptic seizures, according to research published in the December 28, 2012, BMJ. Researchers studied 373,398 people with and without epilepsy who had received the vaccine. The primary end point was admission to a hospital or outpatient hospital care with epileptic seizures. The investigators found no increased risk of seizures in patients with epilepsy and a nonsignificantly decreased risk of seizures in persons without epilepsy during the initial seven-day risk period. During the subsequent 23-day risk period, people without epilepsy had a nonsignificantly increased risk of seizures, but patients with epilepsy had no increase in risk of seizures.
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