The New England journal of medicine
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Meta Analysis Comparative Study
Prophylactic cranial irradiation for patients with small-cell lung cancer in complete remission. Prophylactic Cranial Irradiation Overview Collaborative Group.
Prophylactic cranial irradiation reduces the incidence of brain metastasis in patients with small-cell lung cancer. Whether this treatment, when given to patients in complete remission, improves survival is not known. We performed a meta-analysis to determine whether prophylactic cranial irradiation prolongs survival. ⋯ Prophylactic cranial irradiation improves both overall survival and disease-free survival among patients with small-cell lung cancer in complete remission.
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In laboratory animals, the consumption of soy protein, rather than animal protein, decreases serum cholesterol concentrations, but studies in humans have been inconclusive. In this meta-analysis of 38 controlled clinical trials, we examined the relation between soy protein consumption and serum lipid concentrations in humans. ⋯ In this meta-analysis we found that the consumption of soy protein rather than animal protein significantly decreased serum concentrations of total cholesterol, LDL cholesterol, and triglycerides without significantly affecting serum HDL cholesterol concentrations.
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Randomized Controlled Trial Multicenter Study Meta Analysis Clinical Trial
Prehospital thrombolytic therapy in patients with suspected acute myocardial infarction. The European Myocardial Infarction Project Group.
The efficacy of thrombolytic therapy for acute myocardial infarction depends partly on how soon after the onset of symptoms it is administered. We therefore studied the efficacy and safety of thrombolytic therapy administered before hospital admission and thrombolytic therapy administered after admission in patients with suspected myocardial infarction. ⋯ Prehospital thrombolytic therapy for patients with suspected myocardial infarction is both feasible and safe when administered by well-equipped, well-trained mobile emergency medical staff. Although such therapy appears to reduce mortality from cardiac causes, our data do not definitely establish that it reduces overall mortality.
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In spite of 16 randomized trials conducted during the past 15 years, the effect of thoracic radiotherapy on the survival of patients with limited small-cell lung cancer remains controversial. The majority of these trials did not have enough statistical power to detect a difference in survival of 5 to 10 percent at five years. This meta-analysis was designed to evaluate the hypothesis that thoracic radiotherapy contributes to a moderate increase in overall survival in limited small-cell lung cancer. ⋯ Thoracic radiotherapy moderately improves survival in patients with limited small-cell lung cancer who are treated with combination chemotherapy. Identification of the optimal combination of chemotherapy and radiotherapy will require further trials.
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Randomized Controlled Trial Meta Analysis Clinical Trial
A randomized trial of prednisolone in patients with severe alcoholic hepatitis.
Controlled trials have yielded inconsistent results with regard to the efficacy of corticosteroids in the treatment of alcoholic hepatitis. Three meta-analyses suggest that they may be effective in patients with encephalopathy who have severe liver disease. ⋯ Treatment with prednisolone improves the short-term survival of patients with severe biopsy-proved alcoholic hepatitis.