目的:探讨分析术前应用低分子肝素钙在髋部骨折患者深静脉血栓(DVT)预防中的效果。方法:选取2019年6月—2020年5月东莞市水乡中心医院骨外科收治的60例合并基础疾病髋部骨折患者作为研究对象,采用随机数表法分为治疗组(n=30)和对照组(n=...目的:探讨分析术前应用低分子肝素钙在髋部骨折患者深静脉血栓(DVT)预防中的效果。方法:选取2019年6月—2020年5月东莞市水乡中心医院骨外科收治的60例合并基础疾病髋部骨折患者作为研究对象,采用随机数表法分为治疗组(n=30)和对照组(n=30)。对照组患者给予基础疾病治疗+常规治疗,治疗组患者给予基础疾病治疗+常规治疗+术前应用低分子肝素钙治疗,比较两组患者骨折后2 d及术前1 d血小板计数(PLT)、凝血酶时间(APTT)、纤维蛋白原(FBG)水平和DVT检出情况。结果:两组患者骨折后2 d APTT、FBG水平比较,差异无统计学意义(t=0.049、0.118,P>0.05);两组患者术前1 d PLT、APTT、FBG水平比较,差异无统计学意义(t=0.220、0.248、0.163,P>0.05);治疗组患者DVT检出率低于对照组,检出时间短于对照组,差异有统计学意义(t/χ^(2)=4.320、3.410,P<0.05)。结论:术前开始按照患者体重进行个性化的使用低分子肝素钙,对于合并基础疾病不能及时进行手术的髋部骨折老年患者预防DVT形成效果显著,对患者的凝血功能影响较小,降低血栓发生率,但未造成患者血小板过度减少,安全性较高。展开更多
The bearings in the trunnion of convertor are characterized by low-speed, heavy-load and huge-dimension. In case they experience failure in operation, the output of the convertor and even that of the whole product lin...The bearings in the trunnion of convertor are characterized by low-speed, heavy-load and huge-dimension. In case they experience failure in operation, the output of the convertor and even that of the whole product line would be affected and the huge loss would be resulted in. Thus it is very important to master the working conditions of the bearings. Vibration and oil analysis are two main techniques to monitor the conditions of the rotary machine at present. But normal vibration analysis cannot be used here because of the limitation of their sensors in signal collecting for the rotary frequencies of the bearings are too low. In this paper, the wear condition of the bearing on the driving side of the No.5 convertor during/after the run-in period was monitored through oil analysis including atomic emissive spectrum and ferrography. It has been observed that its run-in period was as long as 19 months. This is mainly attributed to the relative short accumulated working time of the bearing.展开更多
文摘目的:探讨分析术前应用低分子肝素钙在髋部骨折患者深静脉血栓(DVT)预防中的效果。方法:选取2019年6月—2020年5月东莞市水乡中心医院骨外科收治的60例合并基础疾病髋部骨折患者作为研究对象,采用随机数表法分为治疗组(n=30)和对照组(n=30)。对照组患者给予基础疾病治疗+常规治疗,治疗组患者给予基础疾病治疗+常规治疗+术前应用低分子肝素钙治疗,比较两组患者骨折后2 d及术前1 d血小板计数(PLT)、凝血酶时间(APTT)、纤维蛋白原(FBG)水平和DVT检出情况。结果:两组患者骨折后2 d APTT、FBG水平比较,差异无统计学意义(t=0.049、0.118,P>0.05);两组患者术前1 d PLT、APTT、FBG水平比较,差异无统计学意义(t=0.220、0.248、0.163,P>0.05);治疗组患者DVT检出率低于对照组,检出时间短于对照组,差异有统计学意义(t/χ^(2)=4.320、3.410,P<0.05)。结论:术前开始按照患者体重进行个性化的使用低分子肝素钙,对于合并基础疾病不能及时进行手术的髋部骨折老年患者预防DVT形成效果显著,对患者的凝血功能影响较小,降低血栓发生率,但未造成患者血小板过度减少,安全性较高。
文摘The bearings in the trunnion of convertor are characterized by low-speed, heavy-load and huge-dimension. In case they experience failure in operation, the output of the convertor and even that of the whole product line would be affected and the huge loss would be resulted in. Thus it is very important to master the working conditions of the bearings. Vibration and oil analysis are two main techniques to monitor the conditions of the rotary machine at present. But normal vibration analysis cannot be used here because of the limitation of their sensors in signal collecting for the rotary frequencies of the bearings are too low. In this paper, the wear condition of the bearing on the driving side of the No.5 convertor during/after the run-in period was monitored through oil analysis including atomic emissive spectrum and ferrography. It has been observed that its run-in period was as long as 19 months. This is mainly attributed to the relative short accumulated working time of the bearing.
