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The BMJ provides open access to peer reviewed research as part of its commitment to readers and authors. We make all BMJ research articles freely available online, with no word limit, and send them directly to PubMed Central (the National Library of Medicine's full text archive). For details on how to submit articles, visit our resources for authors.
Although antibiotics shorten the course of acute otitis media, they encourage doctors' attendance in future episodes and antibiotic resistance. In this questionnaire survey of trial participants from the Netherlands, recurrent acute otitis media occurred more often in children originally treated with amoxicillin. This is another argument for judicious use of antibiotics in children with acute otitis media, say the researchers.
In patients without established cardiovascular disease but with cardiovascular risk factors, statin use was associated with significantly improved survival and large reductions in the risk of major cardiovascular events, according to this meta-analysis of randomised controlled trials including a total of 70 388 participants.
A glomerular filtration rate <60 ml/min/1.73 m2 was associated with increased risk of death from cardiovascular disease but not other cardiovascular events or non-cardiovascular deaths from causes according to this prospective cohort study. The accompanying editorial says more accurate measures of kidney function are needed to identify those at risk. Photo:Ouellette & Theroux SPL
Also published on 29 June:
Although computed tomography (CT) is the most sensitive imaging investigation for detecting urgent conditions in patients with abdominal pain, using ultrasonography first and CT only in those with negative or inconclusive ultrasonography results in the best sensitivity and lowers exposure to radiation, according to this multicentre diagnostic accuracy study with prospective data collection from the Netherlands. The accompanying editorial agrees that emerging evidence points to a new sequence of investigations in patients with acute abdominal conditions.
Screening for abdominal aortic aneurysm remains effective and is likely to be cost effective in the UK, but data need to be monitored, according to this editorial. Two linked studies further add to the evidence base. In the first study, Thompson and colleagues conclude, "The mortality benefit of screening men aged 65-74 for abdominal aortic aneurysm is maintained up to 10 years and cost effectiveness becomes more favourable over time." On the other hand, the second linked study by Ehlers and colleagues presents a lifetime modelling study of a screening programme for abdominal aortic aneurysm and concludes that screening is not cost effective.
Some food groups in the Mediterranean diet are more important than others in promoting health and longer life, according to this prospective cohort study from the Greek segment of the European Prospective Investigation into Cancer and nutrition (EPIC). The researchers investigated the importance of individual components of the diet and found that eating more vegetables, fruits, nuts, pulses, and olive oil, and drinking moderate amounts of alcohol is linked to people living longer, whereas following a Mediterranean diet high in seafood and cereals and low in dairy products was not an indicator of longevity.
According to this prospective cohort study, having pre-eclampsia in one pregnancy is a poor predictor of subsequent pregnancy but a strong predictor for recurrence of pre-eclampsia in future gestations. Early onset pre-eclampsia might be associated with a reduced likelihood of a future pregnancy and with more recurrences than late onset pre-eclampsia.