加速康复外科(enhanced recovery after surgery,ERAS)是基于循证医学证据的一系列围手术期优化措施,降低手术患者围手术期的生理及心理创伤应激,减少并发症及缩短住院时间,达到促进患者术后康复的目的。通过查阅文献,遵循循证医学原则...加速康复外科(enhanced recovery after surgery,ERAS)是基于循证医学证据的一系列围手术期优化措施,降低手术患者围手术期的生理及心理创伤应激,减少并发症及缩短住院时间,达到促进患者术后康复的目的。通过查阅文献,遵循循证医学原则,经过全国骨肿瘤专家组反复讨论,针对骨肿瘤外科大手术患者的围手术期管理达成了共识,供广大骨肿瘤外科医师在临床工作中参考应用。本共识主要内容包括:心理教育和干预、营养状况评估和管理、预防性抗菌药物使用、麻醉、围术期血液管理、疼痛管理、血栓预防、切口及引流管管理和术后康复锻炼等。展开更多
骨巨细胞瘤(giant cell tumor of bone,GCTB)是一种具有侵袭性的良性肿瘤,中国2017年的发病率为每百万1.49~2.57,远高于日本的1.25和美国的1.38[1]。2020年第五版WHO骨肿瘤分类中将GCTB纳入富含破骨性巨细胞的肿瘤大类,进一步划入中间型...骨巨细胞瘤(giant cell tumor of bone,GCTB)是一种具有侵袭性的良性肿瘤,中国2017年的发病率为每百万1.49~2.57,远高于日本的1.25和美国的1.38[1]。2020年第五版WHO骨肿瘤分类中将GCTB纳入富含破骨性巨细胞的肿瘤大类,进一步划入中间型(局部侵袭性,偶见转移型)和恶性(恶性GCTB)两个亚组[2]。GCTB好发于股骨远端、胫骨近端和桡骨远端,其次是骶骨[3、4],在骶骨良性肿瘤中发病率最高[5]。展开更多
This study focuses on the resource utilization of titanium gypsum to explore its potential as a building material.Using titanium gypsum powder as the main raw material,mixed with a certain proportion of cement,silica ...This study focuses on the resource utilization of titanium gypsum to explore its potential as a building material.Using titanium gypsum powder as the main raw material,mixed with a certain proportion of cement,silica fume,activator and binder,etc.,and designs the indoor test scheme of different granulator speed,balling time and curing conditions.The unburned ceramsite with stable structure and reliable strength is prepared.The strength and water absorption index are measured based on the requirements of the standard standard.The results are as follows:(1)By analyzing the aggregate shape coefficient,bulk density and cylinder compressive strength,it is known that the bulk density of the prepared titanium gypsum-coated ceramsite ranges from>900 kg/m³to≤1000 kg/m³(i.e.,900 kg/m³<bulk density≤1000 kg/m³).The apparent density is between 1700-2200 kg/m3,which belongs to 1000 grade artificial aggregate.In the test scheme,only A5,A7 and A8 meet the basic requirements of aggregate.(2)Based on the entropy weight method,the sensitivity analysis of cylinder compressive strength,water absorption and single aggregate bearing capacity of different test groups was carried out.The results showed that the order of influence on the bearing capacity of single aggregate at 14 d age was molding time>rotation speed>curing condition.The order of influence of cylinder compressive strength at 14 d age is molding time>rotational speed>curing condition.The order of influence on the 24-hour water absorption at 14 days of age is molding time>curing condition>rotational speed.This study can provide a basis for resource design.展开更多
文摘加速康复外科(enhanced recovery after surgery,ERAS)是基于循证医学证据的一系列围手术期优化措施,降低手术患者围手术期的生理及心理创伤应激,减少并发症及缩短住院时间,达到促进患者术后康复的目的。通过查阅文献,遵循循证医学原则,经过全国骨肿瘤专家组反复讨论,针对骨肿瘤外科大手术患者的围手术期管理达成了共识,供广大骨肿瘤外科医师在临床工作中参考应用。本共识主要内容包括:心理教育和干预、营养状况评估和管理、预防性抗菌药物使用、麻醉、围术期血液管理、疼痛管理、血栓预防、切口及引流管管理和术后康复锻炼等。
文摘骨巨细胞瘤(giant cell tumor of bone,GCTB)是一种具有侵袭性的良性肿瘤,中国2017年的发病率为每百万1.49~2.57,远高于日本的1.25和美国的1.38[1]。2020年第五版WHO骨肿瘤分类中将GCTB纳入富含破骨性巨细胞的肿瘤大类,进一步划入中间型(局部侵袭性,偶见转移型)和恶性(恶性GCTB)两个亚组[2]。GCTB好发于股骨远端、胫骨近端和桡骨远端,其次是骶骨[3、4],在骶骨良性肿瘤中发病率最高[5]。
基金Zhejiang Provincial Water Science and Technology Program(Grant Nos.RB2513,RA2403,RB2415)for their invaluable financial support and assistance in this research.
文摘This study focuses on the resource utilization of titanium gypsum to explore its potential as a building material.Using titanium gypsum powder as the main raw material,mixed with a certain proportion of cement,silica fume,activator and binder,etc.,and designs the indoor test scheme of different granulator speed,balling time and curing conditions.The unburned ceramsite with stable structure and reliable strength is prepared.The strength and water absorption index are measured based on the requirements of the standard standard.The results are as follows:(1)By analyzing the aggregate shape coefficient,bulk density and cylinder compressive strength,it is known that the bulk density of the prepared titanium gypsum-coated ceramsite ranges from>900 kg/m³to≤1000 kg/m³(i.e.,900 kg/m³<bulk density≤1000 kg/m³).The apparent density is between 1700-2200 kg/m3,which belongs to 1000 grade artificial aggregate.In the test scheme,only A5,A7 and A8 meet the basic requirements of aggregate.(2)Based on the entropy weight method,the sensitivity analysis of cylinder compressive strength,water absorption and single aggregate bearing capacity of different test groups was carried out.The results showed that the order of influence on the bearing capacity of single aggregate at 14 d age was molding time>rotation speed>curing condition.The order of influence of cylinder compressive strength at 14 d age is molding time>rotational speed>curing condition.The order of influence on the 24-hour water absorption at 14 days of age is molding time>curing condition>rotational speed.This study can provide a basis for resource design.
