Haemostasis
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Randomized Controlled Trial Multicenter Study Clinical Trial
Effectiveness and safety of the low-molecular-weight heparin CY 216 in the prevention of fatal pulmonary embolism and thromboembolic death in general surgery. A multicentre, double-blind, randomized, controlled clinical trial versus placebo (STEP). STEP Study Group.
Deep venous thrombosis is very frequent after general surgery, and its major complication, pulmonary embolism, is today the most frequent cause of postoperative death. The reduction of this cause of mortality is mainly based on its prevention rather than its therapy. This purpose was achieved by using physical and pharmacological means. ⋯ Eight (0.36%) belonged to the CY 216 group and 18 (0.80%) to the placebo group. In the CY 216 group, pulmonary embolism was the direct cause of death in 2 patients (0.09%), while the remaining 6 deaths could not be ascribed either directly or indirectly to thrombosis. In the placebo group, pulmonary embolism was the cause of death in 4 cases (0.18%; p less than 0.05) and contributed to death in 4.(ABSTRACT TRUNCATED AT 400 WORDS)
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Randomized Controlled Trial Clinical Trial
Aspirin at very ultra low dosage in healthy volunteers: effects on bleeding time, platelet aggregation and coagulation.
Aspirin at very ultra low dosage was tested in healthy volunteers (n = 20) in a randomized, double-blind and placebo-controlled trial. The results showed a bleeding time reduction (p less than 0.05) in volunteers having previously ingested aspirin. Platelet aggregation on platelet-rich plasma was not statistically modified after aspirin ingestion. Thrombin clotting time was always higher (p less than 0.05) in the treated group.