A study to see whether sildenafil would improve walk distance in patients with sickle cell anemia and pulmonary hypertension had to be stopped when it turned out the drug increased the risk of vaso-occlusive crises. Reuters Health Information
A Japanese population-based cohort study shows that lumbar spondylosis is highly prevalent in the elderly and that disc space narrowing may be a risk factor for low back pain. Medscape Medical News
Most patients with sudden cardiac death have significant subclinical coronary stenosis and many have had previously undetected myocardial infarction, researchers suggest in a report in the January issue of the American Heart Journal. Reuters Health Information
