Cochrane Db Syst Rev
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Cochrane Db Syst Rev · Jan 2004
Review Meta AnalysisAntiplatelet agents and anticoagulants for hypertension.
Although elevated systemic blood pressure results in high intravascular pressure, the main complications, coronary heart disease (CHD), ischaemic strokes and peripheral vascular disease (PVD), are related to thrombosis rather than haemorrhage. Some complications related to elevated blood pressure, heart failure or atrial fibrillation, are themselves associated with stroke and thromboembolism. It therefore seemed plausible that use of antithrombotic therapy may be particularly useful in preventing thrombosis-related complications of elevated blood pressure. ⋯ For primary prevention in patients with elevated blood pressure, anti-platelet therapy with ASA cannot be recommended since the magnitude of benefit, a reduction in myocardial infarction, is negated by a harm of similar magnitude, an increase in major haemorrhage. For secondary prevention in patients with elevated blood pressure (ATC meta-analysis: APTC 1994) antiplatelet therapy is recommended because the magnitude of the absolute benefit is many times greater. Warfarin therapy alone or in combination with aspirin in patients with elevated blood pressure cannot be recommended because of lack of demonstrated benefit. Glycoprotein IIb/IIIa inhibitors as well as ticlopidine and clopidogrel have not been sufficiently evaluated in patients with elevated blood pressure. Further trials of antithrombotic therapy with complete documentation of all benefits and harms are required in patients with elevated blood pressure.
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Wound and bone infections are frequently associated with open fractures of the extremities and may add significantly to the resulting morbidity. The administration of antibiotics is routinely used in developed countries as an adjunct to a comprehensive management protocol that also includes irrigation, surgical debridement and stabilisation when indicated, and is thought to reduce the frequency of infections. ⋯ Antibiotics reduce the incidence of early infections in open fractures of the limbs. Further placebo controlled randomised trials are unlikely to be justified in middle and high income countries. Further research is necessary to the determine the avoidable burden of morbidity in countries where antibiotics are not used routinely in the management of open fractures.
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Cochrane Db Syst Rev · Jan 2004
Review Meta AnalysisSingle or double-level anterior interbody fusion techniques for cervical degenerative disc disease.
The number of surgical techniques for decompression and solid interbody fusion as a treatment for cervical spondylosis has increased rapidly, but the rationale for the choice between different techniques is unclear. ⋯ The low quality of the trials prohibits extensive conclusions from this review. More studies with better methodology and reporting are needed. There should be a more general agreement between researchers on which outcome parameters should be used in the evaluation of anterior cervical fusion procedures.
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Cochrane Db Syst Rev · Jan 2004
ReviewPin site care for preventing infections associated with external bone fixators and pins.
Metal pins are used to apply skeletal traction or external fixation devices in the management of orthopaedic fractures. These pins protrude through the skin and are therefore described as 'percutaneous' and much has been written on the management of the associated skin wound. The way in which percutaneous pins are treated may affect the incidence of pin site infection. Recommendations for care are not necessarily evidence based. This review set out to summarise the research evidence on the effect of pin site care on infection rates. ⋯ There is very little evidence as to which pin site care regimen best reduces infection rates. Clearly there is a need for large RCTs to determine the best method of pin site management.
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Cochrane Db Syst Rev · Jan 2004
ReviewStimulation of the wrist acupuncture point P6 for preventing postoperative nausea and vomiting.
Postoperative nausea and vomiting (PONV) are common complications following surgery and anaesthesia. Drug therapy to prevent PONV is only partially effective. An alternative approach is to stimulate a P6 acupoint on the wrist. Although there are many trials examining this technique, the results are conflicting. ⋯ This systematic review supports the use of P6 acupoint stimulation in patients without antiemetic prophylaxis. Compared with antiemetic prophylaxis, P6 acupoint stimulation seems to reduce the risk of nausea but not vomiting.