期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
基于随机恢复时间的骨盆骨折创伤患者手术分配优化
1
作者 李清 苏强 邓国英 《运筹与管理》 CSCD 北大核心 2023年第8期51-56,共6页
骨盆骨折是一种高能量创伤且通常伴有多发伤,手术是主要的治疗方法,本文制定并优化创伤患者的手术分配计划。首先根据患者入院时的生命稳定状态,将手术患者分为恢复期和计划期两类;针对两类患者的不同特点,为恢复期患者设置随机恢复时间... 骨盆骨折是一种高能量创伤且通常伴有多发伤,手术是主要的治疗方法,本文制定并优化创伤患者的手术分配计划。首先根据患者入院时的生命稳定状态,将手术患者分为恢复期和计划期两类;针对两类患者的不同特点,为恢复期患者设置随机恢复时间,以最大期望收益为目标建立马尔可夫决策过程模型;根据医院实际情况设计实验,采用后向迭代算法求解得到最优分配策略;改变惩罚函数形式和恢复期患者数量,制定不同场景的分配策略,提高医疗资源利用率。采用二次惩罚函数时,最优分配曲线呈现开关曲线形式;恢复期患者数量越多,其享有的优先权越高。 展开更多
关键词 骨盆骨折 马尔可夫决策过程 随机恢复时间
下载PDF
堵塞恢复时间随机的在线加拿大旅行者问题 被引量:10
2
作者 苏兵 徐寅峰 《系统工程理论与实践》 EI CSCD 北大核心 2005年第10期108-113,共6页
针对旅行者在行走过程中遇到的某一或一系列无法预知堵塞事件的加拿大旅行者问题,考虑每个堵塞恢复时间是一个相互独立随机变量的情形,从在线问题与竞争策略的角度,给出了每个堵塞恢复时间都为均匀分布下的等待策略和贪婪策略以及相应... 针对旅行者在行走过程中遇到的某一或一系列无法预知堵塞事件的加拿大旅行者问题,考虑每个堵塞恢复时间是一个相互独立随机变量的情形,从在线问题与竞争策略的角度,给出了每个堵塞恢复时间都为均匀分布下的等待策略和贪婪策略以及相应策略下的竞争比,并对两种策略的执行效果进行了分析和比较. 展开更多
关键词 堵塞恢复时间随机 在线加拿大旅行者问题 竞争比
原文传递
Fast-track rehabilitation program vs conventional care after colorectal resection:A randomized clinical trial 被引量:43
3
作者 Gang Wang Zhi-Wei Jiang +4 位作者 Jing Xu Jian-Feng Gong Yang Bao Li-Fei Xie Jie-Shou Li 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第5期671-676,共6页
AIM:To compare the fast-track rehabilitation program and conventional care for patients after resection of colorectal cancer.METHODS:One hundred and six consecutive patients who underwent fast-track rehabilitation pro... AIM:To compare the fast-track rehabilitation program and conventional care for patients after resection of colorectal cancer.METHODS:One hundred and six consecutive patients who underwent fast-track rehabilitation program were encouraged to have early oral feeding and movement for early discharge,while 104 consecutive patients underwent conventional care after resection of colorectal cancer.Their gastrointestinal functions,postoperative complications and hospital stay time were recorded.RESULTS:The restoration time of gastrointestinal functions in the patients was significantly faster after fasttrack rehabilitation program than after conventional care(2.1 d vs 3.2 d,P < 0.01).The percentage of patients who developed complications was significantly lower 30 d after fast-track rehabilitation program than after conventional care(13.2% vs 26.9%,P < 0.05).Also,the percentage of patients who had general complications was significantly lower 30 d after fast-track rehabilitation program than after conventional care(6.6% vs 15.4%,P < 0.05).The postoperative hospital stay time of the patients was shorter after fast-track rehabilitation program than after conventional care(5 d vs 7 d,P < 0.01).No significant difference was observed in the readmission rate 30 d after fast-track rehabilitation program and conventional care(3.8% vs 8.7%).CONCLUSION:The fast-track rehabilitation program can significantly decrease the complications and shorten the time of postoperative hospital stay of patients after resection colorectal cancer. 展开更多
关键词 Perioperative care Fast track Rehabilita-tion Colorectal cancer resection
下载PDF
Clinical effect of Sidong Wubu method in treatment of closed fracture of upper limbs 被引量:1
4
作者 Puwei Yuan Deyu Liu +4 位作者 Qiang Zan Yangquan Hao Qunli Dou Genyin Zhang Haiguang Yuan 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2012年第3期393-396,共4页
OBJECTIVE:To objectively evaluate the clinically curative effect of sidong wubu method on closed fracture of upper limbs.METHODS:A single-blind randomized controlled trial was used to divide 654 patients with closed f... OBJECTIVE:To objectively evaluate the clinically curative effect of sidong wubu method on closed fracture of upper limbs.METHODS:A single-blind randomized controlled trial was used to divide 654 patients with closed fracture of upper limbs at early stage into two groups.298 patients in the surgical group were treated with open reduction and internal fixation and 356 patients in the treatment group with sidong wubu method for 6 months as a course of treatment.RESULTS:As for short-term curative effect(after 6 courses of treatment),the total effective rate was 97.7% in the treatment group and 92.9% in the control group,and the excellent and good rate was 83.7% and 76.5% respectively.Fracture-healing time,treatment cost,function-recovering time,scores of symptoms and signs obviously declined in both groups with remarkable difference between the two groups.As to long-term curative effect(after follow-up visit for one year to 5 years and 2 months),there was still noticeable difference(χ 2 = 7.536,P<0.05) in total curative effect and in excellent and good rate between the two groups.CONCLUSION:With low cost,short treatment course,good function and other advantages,sidong wubu method can be first used to treat closed fracture of upper limbs. 展开更多
关键词 FRACTURES CLOSED Upper extremity sidong wubu method Fracture fixation INTERNAL
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部