Cochrane Db Syst Rev
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Cochrane Db Syst Rev · Jan 2008
Review Meta AnalysisDevices and pressure sources for administration of nasal continuous positive airway pressure (NCPAP) in preterm neonates.
Nasal continuous positive airway pressure (NCPAP) is used to support preterm infants recently extubated, those experiencing significant apnoea of prematurity and those with respiratory distress soon after birth as an alternative to intubation and ventilation. This review focuses exclusively on identifying the most effective pressure source and interface for NCPAP delivery in preterm infants. ⋯ Short binasal prong devices are more effective than single prongs in reducing the rate of re-intubation. Although the Infant Flow Driver appears more effective than Medicorp prongs the most effective short binasal prong device remains to be determined. The improvement in respiratory parameters with short binasal prongs suggests they are more effective than nasopharyngeal CPAP in the treatment of early RDS. Further studies incorporating longer-term outcomes are required. Studies are also needed to determine the optimal pressure source for the delivery of NCPAP.
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Cochrane Db Syst Rev · Jan 2008
Review Meta AnalysisBeta-2 receptor antagonists for acute traumatic brain injury.
Traumatic brain injury (TBI) is a leading cause of death and disability worldwide. Cerebral oedema, the accumulation of fluid within the brain, is believed to be an important contributor to the secondary brain damage that occurs following injury. The release of kinins is thought to be an important factor in the development of cerebral vasogenic oedema and the use of beta-2 receptor antagonists, which prevent the release of these kinins, have been proposed as a potential therapeutic intervention. ⋯ There is no reliable evidence that beta-2 receptor antagonists are effective in reducing mortality or disability after TBI. Further well conducted randomised controlled trials are required.
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Oxidative stress has been proposed as a key factor involved in the development of pre-eclampsia. Supplementing women with antioxidants during pregnancy may help to counteract oxidative stress and thereby prevent or delay the onset of pre-eclampsia. ⋯ Evidence from this review does not support routine antioxidant supplementation during pregnancy to reduce the risk of pre-eclampsia and other serious complications in pregnancy.
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Cochrane Db Syst Rev · Jan 2008
Review Meta AnalysisBiocompatible hemodialysis membranes for acute renal failure.
Acute renal failure (ARF) is associated with substantial morbidity and mortality. Some studies have reported a survival advantage among patients dialyzed with biocompatible membranes (BCM) compared to bioincompatible membranes (BICM). These findings were not consistently observed in subsequent studies. ⋯ There is no demonstrable clinical advantage to the use of BCM versus BICM in patients with ARF who require intermittent hemodialysis.
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Cochrane Db Syst Rev · Jan 2008
ReviewInterventions for preventing venous thromboembolism following abdominal aortic surgery.
Deep vein thrombosis (DVT) is one of the most common, preventable complications of surgery. Although the relationship between surgery and DVT is well established in general surgical operations and most other subspecialties, the same cannot be said about arterial surgery. Deep vein thrombosis is believed to be less common in aortic surgery where its management is rather controversial with a reported incidence of DVT from 2% to 18%.Intra-operative heparin is believed to provide protection during the period when DVT is most likely to develop. However, the practice of using intra-operative heparin could increase the risk of haemorrhagic complications if further heparin is used during the recovery period. This can significantly limit the use of such prophylactic measures especially with the low perceived risk of venous thromboembolism (DVT or pulmonary embolism (PE)) following abdominal aortic surgery. However, vascular patients are usually older, with more co-morbidity and are subject to prolonged immobility, all of which increase the likelihood of developing venous thromboembolism. ⋯ There is not enough evidence to make a definitive conclusion about the use of anticoagulant drugs (with or without mechanical devices) for DVT prophylaxis in patients undergoing abdominal aortic surgery.