Objective: To assess the effect of fast track surgery care on knee joint function in patients with knee joint replacement surgery. Methods: Eighteen databases were searched for randomized controlled trials, focusing o...Objective: To assess the effect of fast track surgery care on knee joint function in patients with knee joint replacement surgery. Methods: Eighteen databases were searched for randomized controlled trials, focusing on evaluation of fast track surgery care on knee joint function in patients with knee joint replacement surgery. Two people independently screened literatures and extracted data according to the inclusion criteria. Then the available data were analyzed with RevMan software (version 5.3.0). Descriptive techniques were performed when no available data could be used. Results: A total of 8 studies were included, for a total sample of 635 patients. The results showed that fast track surgery care can improve Hospital for Special Surgery Knee score at 2 months, 3 months, 6 months, and 1 years after operation [after 2 months (weighted mean difference (WMD), 15.2;95%CI, 13.58 to 16.82;P < 0.01);after 3 months (WMD, 9.42;95%CI, 7.80 to 11.04;P < 0.01);after 6 months,(WMD, 11.01;95%CI, 9.73 to 12.28;P < 0.01);after 1 years (WMD, 10.78;95%CI, 9.33 to 12.24;P < 0.01)]. Fast track surgery care can improve the knee score of American Knee Society Knee Score(WMD, 9.23;95%CI,0.86 - 17.6;P < 0.05), and reduce the incidence of postoperative deep vein thrombosis, constipation, pulmonary infection, urinary tract infection and other complications. Conclusion: Fast track surgery care can promote knee joint function recovery, reduce postoperative deep venous thrombosis, constipation, pulmonary infection and urinary tract infection. However, rigorous large sample and multicenter randomized controlled trials are needed for further validation.展开更多
For lack of effective resource adjustment method, the supply-demand relationship of each resource in P2P content delivery system are often unbalanced. Especially after a popular content releasing, a burst of downloade...For lack of effective resource adjustment method, the supply-demand relationship of each resource in P2P content delivery system are often unbalanced. Especially after a popular content releasing, a burst of downloaders often can＇t find sufficient uploaders and their request may starve the upload capacity of server. Therefore the overall system QoS may be degraded. To tackle such issue, this paper proposes a download rate accelerate mechanism, called motivate mechanism. With it, the system can quickly find out the files becoming insufficient by monitoring the operating status of the files hourly, Then it promptly increase the number of copies of those files by using free rider nodes so that the whole system QoS is maintained and the system performance is improved. The experiment results on the practical operating system of Tencent demonstrated that the proposed mechanism increases the download rate, saves the traffic on the server and optimizes the system performance.展开更多
文摘Objective: To assess the effect of fast track surgery care on knee joint function in patients with knee joint replacement surgery. Methods: Eighteen databases were searched for randomized controlled trials, focusing on evaluation of fast track surgery care on knee joint function in patients with knee joint replacement surgery. Two people independently screened literatures and extracted data according to the inclusion criteria. Then the available data were analyzed with RevMan software (version 5.3.0). Descriptive techniques were performed when no available data could be used. Results: A total of 8 studies were included, for a total sample of 635 patients. The results showed that fast track surgery care can improve Hospital for Special Surgery Knee score at 2 months, 3 months, 6 months, and 1 years after operation [after 2 months (weighted mean difference (WMD), 15.2;95%CI, 13.58 to 16.82;P < 0.01);after 3 months (WMD, 9.42;95%CI, 7.80 to 11.04;P < 0.01);after 6 months,(WMD, 11.01;95%CI, 9.73 to 12.28;P < 0.01);after 1 years (WMD, 10.78;95%CI, 9.33 to 12.24;P < 0.01)]. Fast track surgery care can improve the knee score of American Knee Society Knee Score(WMD, 9.23;95%CI,0.86 - 17.6;P < 0.05), and reduce the incidence of postoperative deep vein thrombosis, constipation, pulmonary infection, urinary tract infection and other complications. Conclusion: Fast track surgery care can promote knee joint function recovery, reduce postoperative deep venous thrombosis, constipation, pulmonary infection and urinary tract infection. However, rigorous large sample and multicenter randomized controlled trials are needed for further validation.
基金National Science Foundation Project of P.R.China，China Postdoctoral Science Foundation，the Fundamental Research Funds for the Central Universities
文摘For lack of effective resource adjustment method, the supply-demand relationship of each resource in P2P content delivery system are often unbalanced. Especially after a popular content releasing, a burst of downloaders often can＇t find sufficient uploaders and their request may starve the upload capacity of server. Therefore the overall system QoS may be degraded. To tackle such issue, this paper proposes a download rate accelerate mechanism, called motivate mechanism. With it, the system can quickly find out the files becoming insufficient by monitoring the operating status of the files hourly, Then it promptly increase the number of copies of those files by using free rider nodes so that the whole system QoS is maintained and the system performance is improved. The experiment results on the practical operating system of Tencent demonstrated that the proposed mechanism increases the download rate, saves the traffic on the server and optimizes the system performance.
