Improved Stroke Imaging Techniques
Article Abstract:
New developments in magnetic resonance imaging (MRI) may improve the diagnosis and treatment of stroke. Diffusion-weighted imaging (DWI) and perfusion-weighted imaging (PWI), are two new MRI techniques that appear to be more accurate than CT scans. DWI measures how fast blood moves through the brain and can therefore detect areas of low blood flow. This would occur when a blood clot blocks the flow of blood to an area of the brain, causing a stroke. PWI also measures the flow of liquid through the brain and both techniques can pinpoint damaged areas of the brain.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1999
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New drugs for the nail fungus prevalent in elderly
Article Abstract:
Two drugs were approved in 1995 and 1996 to treat a fungal nail infection called onychomycosis. This infection, which can affect the fingernails and toenails, was found in 48% of patients 70 years and older in one study. This is three or four times the rate seen 20 years ago. Many people affected cannot wear shoes or work with their hands and some can't walk. Itraconazole (Sporanox) and terbinafine (Lamasil) have been proven effective in many trials and could probably replace the older drugs griseofulvin and ketoconazole.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1996
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Trial suggests change in transfusion strategy
Article Abstract:
A Canadian study has shown that patients in intensive care units may benefit from fewer blood transfusions. Researchers provided liberal transfusion to 420 patients and restrictive transfusion to 428 patients. Mortality rates in the restrictive transfusion group were 6% lower than in the liberal transfusion group. Patients in the restrictive transfusion group received 52% fewer transfusions than patient in the liberal transfusion group. Blood may not deliver enough oxygen when stored beyond a certain date.
Publication Name: JAMA, The Journal of the American Medical Association
Subject: Health
ISSN: 0098-7484
Year: 1998
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