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Application of regional citrate anticoagulation in patients at high risk of bleeding during intermittent hemodialysis:a prospective multicenter randomized controlled trial 被引量:6
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作者 Xiaoyan TANG Dezheng chen +23 位作者 Ling ZHANG Ping FU yanxia chen Zhou XIAO Xiangcheng XIAO Weisheng PENG Li chenG Yanmin ZHANG Hongbo LI Kehui LI Bizhen GOU Xin WU Qian YU Lijun JIAN Zaizhi ZHU Yu WEN cheng LIU Hen XUE Hongyu ZHANG Xin HE Bin YAN Liping ZHONG Bin HUANG Mingying MAO 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2022年第11期931-942,共12页
Objective:Safe and effective anticoagulation is essential for hemodialysis patients who are at high risk of bleeding.The purpose of this trial is to evaluate the effectiveness and safety of two-stage regional citrate ... Objective:Safe and effective anticoagulation is essential for hemodialysis patients who are at high risk of bleeding.The purpose of this trial is to evaluate the effectiveness and safety of two-stage regional citrate anticoagulation(RCA)combined with sequential anticoagulation and standard calcium-containing dialysate in intermittent hemodialysis(IHD)treatment.Methods:Patients at high risk of bleeding who underwent IHD from September 2019 to May 2021 were prospectively enrolled in 13 blood purification centers of nephrology departments,and were randomly divided into RCA group and saline flushing group.In the RCA group,0.04 g/mL sodium citrate was infused from the start of the dialysis line during blood draining and at the venous expansion chamber.The sodium citrate was stopped after 3 h of dialysis,which was changed to sequential dialysis without anticoagulant.The hazard ratios for coagulation were according to baseline.Results:A total of 159 patients and 208 sessions were enrolled,including RCA group(80 patients,110 sessions)and saline flushing group(79 patients,98 sessions).The incidence of severe coagulation events of extracorporeal circulation in the RCA group was significantly lower than that in the saline flushing group(3.64%vs.20.41%,P<0.001).The survival time of the filter pipeline in the RCA group was significantly longer than that in the saline flushing group((238.34±9.33)min vs.(221.73±34.10)min,P<0.001).The urea clearance index(Kt/V)in the RCA group was similar to that in the saline flushing group with no statistically significant difference(1.12±0.34 vs.1.08±0.34,P=0.41).Conclusions:Compared with saline flushing,the two-stage RCA combined with a sequential anticoagulation strategy significantly reduced extracorporeal circulation clotting events and prolonged the dialysis time without serious adverse events. 展开更多
关键词 Regional citrate anticoagulation Intermittent hemodialysis Calcium-containing dialysate Saline flushing ANTICOAGULATION
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超薄可转移的铂和铂钌修饰的石墨烯薄膜作为高效甲醇氧化催化剂(英文) 被引量:4
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作者 陶柱晨 陈微 +5 位作者 杨晶 王向阳 谈紫琪 叶江林 陈艳霞 朱彦武 《Science China Materials》 SCIE EI CSCD 2019年第2期273-282,共10页
从氧化石墨中获得石墨烯材料在负载金属催化剂中具有很大的应用潜力,但在通过化学气相沉积制备的高质量石墨烯(CVDG)上均匀负载金属纳米粒子仍然是一个挑战.我们成功制备了在CVDG上均匀负载具有约3.3 nm尺寸的铂纳米粒子的超薄复合薄膜(... 从氧化石墨中获得石墨烯材料在负载金属催化剂中具有很大的应用潜力,但在通过化学气相沉积制备的高质量石墨烯(CVDG)上均匀负载金属纳米粒子仍然是一个挑战.我们成功制备了在CVDG上均匀负载具有约3.3 nm尺寸的铂纳米粒子的超薄复合薄膜(PtCVDG),并且这种薄膜可通过类似CVDG转移的方法转移到目标衬底上. Pt-CVDG薄膜在甲醇催化氧化中表现出优异的性能,具有高达94.1m^2g^(-1)Pt的电化学活性表面积,并且在0.7 V下具有293.1 mAmg^(-1)Pt的高质量活性电流密度,该电流密度几乎是相同条件下商业Pt/C的两倍.此外,为进一步提高催化性能,将钌沉积到Pt-CVDG薄膜上,在Ru覆盖率达到50%时得到比原始样品高2倍的催化电流密度且催化起始电位降低0.2 V.同时这种基于CVDG的复合薄膜为评估Pt NPs-碳杂化催化剂性能的极限提供了一个简单模型. 展开更多
关键词 氧化催化剂 铂纳米粒子 复合薄膜 石墨烯 甲醇 超薄 负载金属催化剂 化学气相沉积
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