Cochrane Db Syst Rev
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Cochrane Db Syst Rev · Jan 2003
Review Meta AnalysisAntiplatelet agents for preventing thrombosis after peripheral arterial bypass surgery.
Peripheral arterial disease (PAD) may cause occlusions (blockages) in the main arteries of the lower limbs. It is frequently treated by implantation of either an infrainguinal autologous (using the patient's own tissue) venous or artificial graft. A number of factors influence occlusion rates, including the material used. To prevent graft occlusion, patients are usually treated with either an antiplatelet or antithrombotic drug, or a combination of both. ⋯ Antiplatelet therapy with aspirin had a slight beneficial effect on the patency of peripheral bypasses, but seemed to have an inferior effect on venous graft patency compared with artificial grafts. The effect of aspirin on cardiovascular outcomes and survival was mild and not statistically significant; this might be due to the fact that the majority of patients receiving a peripheral graft have an advanced stage of PAD with critical ischemia. These patients are usually seriously ill with respect to cardiovascular diseases with high mortality rates of 20% per year. Additionally, the number of patients included in this analysis might still be too small to reach a statistically significant effect for mortality and cardiovascular morbidity.
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Cochrane Db Syst Rev · Jan 2003
Review Meta AnalysisSteroids for improving recovery following tonsillectomy in children.
Tonsillectomy continues to be one of the most common surgical procedures performed worldwide. Despite advances in anesthetic and surgical techniques, post-tonsillectomy morbidity remains a significant clinical problem. ⋯ The evidence suggests that a single intravenous dose of dexamethasone is an effective, relatively safe and inexpensive treatment for reducing morbidity from pediatric tonsillectomy. No adverse events attributable to dexamethasone were reported in these trials. Additionally, in our 10-year experience of routine use of a single intravenous dose of dexamethasone during pediatric tonsillectomy, there have been no attributable, adverse events. Lastly, we found no reports in the literature of complications from use of a single intravenous dose of corticosteroid during pediatric tonsillectomy.
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Cochrane Db Syst Rev · Jan 2003
ReviewCombined spinal-epidural versus epidural analgesia in labour.
Traditional epidural techniques have been associated with prolonged labour, use of oxytocin augmentation, and increased incidence of instrumental vaginal delivery. The combined spinal-epidural (CSE) technique has been introduced in an attempt to reduce these adverse effects. CSE is believed to improve maternal mobility during labour and provide more rapid onset of analgesia than epidural analgesia. ⋯ There is no standard CSE or epidural technique. Compared with epidural, CSE provides faster onset of effective pain relief from the time of injection, and increases the incidence of maternal satisfaction. However, CSE women experience more itch. There is no difference between CSE and epidural techniques with respect to: the incidence of forceps delivery, maternal mobility, PDPH, caesarean section rates or admission of babies to the neonatal unit. It is not possible to draw any meaningful conclusions regarding rare complications such as nerve injury and meningitis.
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Cochrane Db Syst Rev · Jan 2003
Review Meta AnalysisSpeech and language therapy interventions for children with primary speech and language delay or disorder.
It is thought that approximately 6% of children have speech and language difficulties of which the majority will not have any other significant developmental difficulties. Whilst most children's difficulties resolve, children whose difficulties persist into primary school may have long-term problems concerning literacy, socialisation, behaviour and school attainment. ⋯ The review shows that overall there is a positive effect of speech and language therapy interventions for children with expressive phonological and expressive vocabulary difficulties. The evidence for expressive syntax difficulties is more mixed, and there is a need for further research to investigate intervention for receptive language difficulties. There is a large degree of heterogeneity in the results, and the sources of this need to be investigated.
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Cochrane Db Syst Rev · Jan 2003
ReviewNew generation antipsychotics for first episode schizophrenia.
The new generation antipsychotics are associated with a lower risk of adverse effects compared with drugs such as haloperidol. Many treatment guidelines recommend the use of new generation ('atypical') antipsychotic drugs for people with a first episode of schizophrenia. ⋯ The results of this review are inconclusive. Whether the use of new generation antipsychotics really makes the treatment less off putting and enhances long-term compliance is unclear. Pragmatic, well-designed and reported long-term trials would be useful to answer this question.