Cochrane Db Syst Rev
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Cochrane Db Syst Rev · Sep 2012
Review Meta AnalysisAlpha-foetoprotein and/or liver ultrasonography for screening of hepatocellular carcinoma in patients with chronic hepatitis B.
Chronic hepatitis B virus infection is a risk factor for development of hepatocellular carcinoma. Alpha-foetoprotein and liver ultrasonography are used to screen patients with chronic hepatitis B for hepatocellular carcinoma. It is uncertain whether screening is worthwhile. ⋯ There is not enough evidence to support or refute the value of alpha-foetoprotein or ultrasound screening, or both, of hepatitis B surface antigen (HBsAg) positive patients for hepatocellular carcinoma. More and better designed randomised trials are required to compare screening against no screening.
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Cochrane Db Syst Rev · Sep 2012
ReviewDecongestants, antihistamines and nasal irrigation for acute sinusitis in children.
The efficacy of decongestants, antihistamines and nasal irrigation in children with clinically diagnosed acute sinusitis has not been systematically evaluated. ⋯ There is no evidence to determine whether the use of antihistamines, decongestants or nasal irrigation is efficacious in children with acute sinusitis. Further research is needed to determine whether these interventions are beneficial in the treatment of children with acute sinusitis.
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The review is withdrawn due to its insufficient quality. The editorial group responsible for this previously published document have withdrawn it from publication.
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Cochrane Db Syst Rev · Sep 2012
Review Meta AnalysisPercutaneous transluminal balloon angioplasty and stenting for carotid artery stenosis.
Endovascular treatment by transluminal balloon angioplasty or stent insertion may be a useful alternative to carotid endarterectomy for the treatment of atherosclerotic carotid artery stenosis. This review updates a previous version first published in 1997 and subsequently updated in 2004 and 2007. ⋯ Endovascular treatment is associated with an increased risk of peri-procedural stroke or death compared with endarterectomy. However, this excess risk appears to be limited to older patients. The longer term efficacy of endovascular treatment and the risk of restenosis are unclear and require further follow-up of existing trials. Further trials are needed to determine the optimal treatment for asymptomatic carotid stenosis.
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Skeletal muscle cramps are common and often presented to physicians in association with pregnancy, advanced age, exercise or disorders of the motor neuron (such as amyotrophic lateral sclerosis). Magnesium supplements are marketed for the prophylaxis of cramps but the efficacy of magnesium for this indication has never been evaluated by systematic review. ⋯ It is unlikely that magnesium supplementation provides clinically meaningful cramp prophylaxis to older adults experiencing skeletal muscle cramps. In contrast, for those experiencing pregnancy-associated rest cramps the literature is conflicting and further research in this patient population is needed. We found no randomized controlled trials evaluating magnesium for exercise-associated muscle cramps or disease state-associated muscle cramps (for example amyotrophic lateral sclerosis/motor neuron disease).