Anesthesiology
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Randomized Controlled Trial Multicenter Study
Patient Blood Management in Elective Total Hip- and Knee-replacement Surgery (Part 1): A Randomized Controlled Trial on Erythropoietin and Blood Salvage as Transfusion Alternatives Using a Restrictive Transfusion Policy in Erythropoietin-eligible Patients.
Patient blood management combines the use of several transfusion alternatives. Integrated use of erythropoietin, cell saver, and/or postoperative drain reinfusion devices on allogeneic erythrocyte use was evaluated using a restrictive transfusion threshold. ⋯ In hip- and knee-replacement patients (hemoglobin level, 10 to 13 g/dl), even with a restrictive transfusion trigger, erythropoietin significantly avoids transfusion, however, at unacceptably high costs. Autologous blood salvage devices were not effective.
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Randomized Controlled Trial Multicenter Study
Patient Blood Management in Elective Total Hip- and Knee-replacement Surgery (Part 2): A Randomized Controlled Trial on Blood Salvage as Transfusion Alternative Using a Restrictive Transfusion Policy in Patients with a Preoperative Hemoglobin above 13 g/dl.
There is no benefit of blood salvage during or after total knee or hip replacement surgery for patients with pre-operative Hb over 13 g/dL.
pearl -
Multicenter Study Clinical Trial
Monitoring depth of anesthesia utilizing a combination of electroencephalographic and standard measures.
For decades, monitoring depth of anesthesia was mainly based on unspecific effects of anesthetics, for example, blood pressure, heart rate, or drug concentrations. Today, electroencephalogram-based monitors promise a more specific assessment of the brain function. To date, most approaches were focused on a "head-to-head" comparison of either electroencephalogram- or standard parameter-based monitoring. In the current study, a multimodal indicator based on a combination of both electro encephalographic and standard anesthesia monitoring parameters is defined for quantification of "anesthesia depth." ⋯ A multimodal integration of both standard monitoring and electroencephalographic parameters may more precisely reflect the level of anesthesia compared with monitoring based on one of these aspects alone.