Annals of internal medicine
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It has been assumed that cardioversion in patients with atrial fibrillation lasting less than 48 hours is associated with a low risk for thromboembolism. However, no clinical data support this assumption. ⋯ Among patients presenting with atrial fibrillation that was clinically estimated to have lasted less than 48 hours, the likelihood of cardioversion-related clinical thromboembolism is low. These data support the current recommendation for early cardioversion in these patients.
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Randomized Controlled Trial Multicenter Study Clinical Trial
Peripheral blood stem cell and bone marrow transplantation for solid tumors and lymphomas: hematologic recovery and costs. A randomized, controlled trial.
Previous studies have suggested that peripheral blood stem cell (PBSC) transplantation has an advantage over autologous bone marrow transplantation. ⋯ Transplantation of PBSCs is associated with more rapid hematologic recovery than is bone marrow transplantation after high-dose chemotherapy for solid tumors or lymphomas. Furthermore, global costs are lower and cost-effectiveness ratios are better with PBSC transplantation.
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Comparative Study
Comparison of dietary calcium with supplemental calcium and other nutrients as factors affecting the risk for kidney stones in women.
Calcium intake is believed to play an important role in the formation of kidney stones, but data on the risk factors for stone formation in women are limited. ⋯ High intake of dietary calcium appears to decrease risk for symptomatic kidney stones, whereas intake of supplemental calcium may increase risk. Because dietary calcium reduces the absorption of oxalate, the apparently different effects caused by the type of calcium may be associated with the timing of calcium ingestion relative to the amount of oxalate consumed. However, other factors present in dairy products (the major source of dietary calcium) could be responsible for the decreased risk seen with dietary calcium.