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Increased
Postpartum Susceptibility to Malaria
The frequency of episodes of malaria was monitored daily for eight years
in a village in Senegal, during which time there were 71 pregnancies in
38 women. The study found that among women who live in areas with high rates
of transmission of malaria, the susceptibility to infection is highest during
the second and third trimesters of pregnancy and the early postpartum period.
Alendronate
for the Treatment of Osteoporosis in Men
In
this study, 241 men ranging in age from 31 to 87 years who had osteoporosis
that was idiopathic or associated with low serum testosterone values were
given 10 mg of alendronate or placebo daily for two years. Bone mineral
density of the lumbar spine, hip, and total body progressively increased
by a mean of 7.1, 3.1, and 2.0 percent, respectively, in the alendronate
group, as compared with respective increases of 1.8, 0.6, and 0.4 percent
in the placebo group. The men in the alendronate group also had fewer vertebral
fractures and smaller decreases in height.
Predictors
of Outcome in Severe, Asymptomatic Aortic Stenosis
Opinions differ about whether to perform aortic-valve replacement in asymptomatic
patients with severe aortic stenosis. In practice, surgery is often deferred
until symptoms appear, but there is concern that sudden death may occur
in the interim. In this study, poor outcomes were observed in asymptomatic
patients with moderate-to-severe valvular calcification together with Doppler
evidence of a rapid increase in aortic stenosis. Such patients should be
considered for early valve replacement, even if they remain asymptomatic.
Spinal
Cord Stimulation in Reflex Sympathetic Dystrophy
Reflex sympathetic
dystrophy is a chronic pain syndrome that can develop after trauma to an
extremity. This randomized trial assessed the effectiveness of spinal cord
stimulation through implanted electrodes. The 36 patients assigned to receive
electrical stimulation plus physical therapy had significantly greater relief
of pain and greater improvement in the quality of life than did the 18 controls
who were treated with physical therapy alone. |