Cochrane Db Syst Rev
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Cochrane Db Syst Rev · Jul 2006
Review Meta AnalysisInfluenza vaccination for healthcare workers who work with the elderly.
Healthcare workers (HCW) (nurses, doctors, other health professionals, cleaners and porters), have substantial rates of clinical and sub-clinical influenza during influenza seasons and may transmit influenza to those in their care, especially the vulnerable elderly. ⋯ We concluded that there is no credible evidence that vaccination of healthy people under the age of 60, who are HCWs caring for the elderly, affects influenza complications in those cared for. However, as vaccinating the elderly in institutions reduces the complications of influenza and vaccinating healthy persons under 60 reduces cases of influenza, those with the responsibility of caring for the elderly in institutions may want to increase vaccine coverage and assess its effects in well-designed studies.
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Cochrane Db Syst Rev · Jul 2006
Review Meta AnalysisAntidepressants for the negative symptoms of schizophrenia.
Negative symptoms are common in people with schizophrenia and are often difficult to treat with antipsychotic drugs. Treatment often involves the use of various add-on medications such as antidepressants. ⋯ The combination of antipsychotics and antidepressants may be effective in treating negative symptoms of schizophrenia, but the amount of information is currently too limited to allow any firm conclusions. Large, pragmatic, well-designed and reported long term trials are justified.
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Cochrane Db Syst Rev · Jul 2006
Review Meta AnalysisPolyunsaturated fatty acid supplementation for schizophrenia.
Limited evidence supports a hypothesis suggesting that schizophrenic symptoms may be the result of altered neuronal membrane structure and metabolism. The structure and metabolism is dependent on blood plasma levels of certain essential fatty acids and their metabolites. ⋯ Two updates of this review have resulted in more included studies but relatively little useful additional data. The results remain inconclusive. The new trials all compare the omega-3 polyunsaturated fatty acids, in particular eicosapentaenoic acid and its ester, ethyl-eicosapentaenoic acid. The use of omega-3 polyunsaturated fatty acids for schizophrenia still remains experimental and this review highlights the need for large well designed, conducted and reported studies.
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Cochrane Db Syst Rev · Jul 2006
ReviewSelenium for alleviating the side effects of chemotherapy, radiotherapy and surgery in cancer patients.
Selenium supplements are frequently used by cancer patients. Selenium is an essential trace element and is involved in antioxidant protection and redox-regulation in humans. Several adverse effects of radiotherapy and chemotherapy in cancer patients as well as cellular processes that maintain chronic lymphoedema have been linked to oxidative cell damage in the human body. Selenium has recently been investigated as a remedy against chemotherapy and radiotherapy-associated side effects as well as its effects on lymphoedema. ⋯ There is insufficient evidence at present that selenium supplementation alleviates the side effects of tumour specific chemotherapy or radiotherapy treatments. Or, that it improves the after effects of surgery, or improves quality of life in cancer patients or reduces secondary lymphoedema. To date research findings do not provide a basis for any recommendation in favour or against selenium supplementation in cancer patients. Potential hazards of supplementing a trace mineral should be kept in mind.
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Cochrane Db Syst Rev · Jul 2006
ReviewPosterior versus lateral surgical approach for total hip arthroplasty in adults with osteoarthritis.
Osteoarthritis (OA) of the hip is a progressive condition that has no cure and often requires a total hip arthroplasty (THA). The principal methods for THA are the posterior and direct lateral approaches. The posterior approach is considered to be easy to perform, however, increased rates of dislocation have been reported. The direct lateral approach facilitates cup positioning which may decrease rates of hip dislocation and diminishes the risk of injury to the sciatic nerve. However, there is an increased risk of limp. Dislocation of a hip prosthesis is a clinically important complication after THA, in terms of morbidity implications and costs. ⋯ The quality and quantity of information extracted from the trials performed to date are insufficient to make any firm conclusion on the optimum choice of surgical approach in adult patients undergoing primary THA for OA.