探讨氨甲环酸(Tranexamic acid)不同给药方式在胫骨高位截骨术(High Tibial osteotomy)治疗内翻型膝关节骨性关节炎中的临床疗效。回顾性分析符合研究纳入标准内翻型膝关节骨性关节炎行HTO患者95例,根据TXA使用情况分为:A组(不使用,n=30...探讨氨甲环酸(Tranexamic acid)不同给药方式在胫骨高位截骨术(High Tibial osteotomy)治疗内翻型膝关节骨性关节炎中的临床疗效。回顾性分析符合研究纳入标准内翻型膝关节骨性关节炎行HTO患者95例,根据TXA使用情况分为:A组(不使用,n=30),B组(静脉滴注,n=34,术前30 min 2 g TXA溶于100 mL生理盐水),C组(局部应用,n=31,2 g TXA溶于20 mL生理盐水,切口关闭后由引流管注入切口)。记录手术时间、术中出血量、术后引流量、术后输血、切口及其他并发症,有症状的静脉血栓栓塞症(VTE),根据身高、体重、术前血红蛋白浓度与术后最低血红蛋白浓度计算患者总失血量;并记录术前1天,术后1月、3月、6月美国特种外科医院膝关节评分(hospital for special surgery knee score,HSS评分)以及术前1天,术后1天、3天、1月、3月、6月视觉模拟评分法(Visual Analogue Scale,VAS)。B组和C组总失血量小于A组,B组和C组差异无统计学意义[(712.04±124.35) mL vs (431.26±88.15) mL vs (488.59±149.16) mL,PAB<0.05,PAC<0.05,PBC>0.05)];三组患者均未输血及出现血管事件,术前1天、术后3月、术后6月患肢HSS评分无明显差异,术后1月HSS评分A组较B组和C组低(P<0.05),B组和C组差异无统计学意义;术前1天,术后3月、6月VAS评分三组无明显差异,B组和C组术后1天、3天、1月VAS评分较A组低(P<0.05),B组和C组无统计学差异。静脉、局部应用TXA均可减少膝内翻型骨性关节炎行HTO围手术期失血量,且不增加术后静脉血栓栓塞症风险,但静脉、局部应用对减少围术期失血量效果无明显差异。展开更多
In this study, concentrations of tritiated water(HTO) and non-exchangeable organically bound tritium(NE-OBT) and the NE-OBT/HTO ratios were determined in soil around Qinshan Nuclear Power Plant(NPP), Zhejiang, China, ...In this study, concentrations of tritiated water(HTO) and non-exchangeable organically bound tritium(NE-OBT) and the NE-OBT/HTO ratios were determined in soil around Qinshan Nuclear Power Plant(NPP), Zhejiang, China, and their vertical profile and spatial distribution were investigated. Results showed variations in both the HTO and NE-OBT concentrations in the vertical profile. The HTO concentrations generally decreased firstly and then increased with the increasing depths, but the trend was not significant. The NE-OBT concentrations in the surface soils(0–5 cm) were considerably lower than those in the deep soils(5–25 cm) at all the sites. The NE-OBT/HTO ratios also show a variable vertical profile, initially increasing and then decreasing with increasing soil depth.Both the HTO and NE-OBT concentrations decreased with the increasing distance to the HWRs in deep soil layers(5–25 cm), revealing that the released tritium from the NPP affected the spatial distribution.展开更多
This is second paper summarizing the study on the hydrous titanium oxide absorbent for extracting uranium fromseawater. The investigation is performed by means of X- ray photoelectronic energy spectroscopy for chemica...This is second paper summarizing the study on the hydrous titanium oxide absorbent for extracting uranium fromseawater. The investigation is performed by means of X- ray photoelectronic energy spectroscopy for chemical analysis ( ESC A ) , determination of surface hydroxy radical, Fourier-transfer infrared spectrophotometry (FT-IR ) , electron paramagnetic resonance (EPR), inductively coupled Plasma torch (ICP), etc. The emphasis is laid upon the exploration of HTO surface and a discussion about the adsorption micromechanism.展开更多
-The i. r. spectra of Na4 [UO2 (CO3)3], Na [UO2 (OH)3] and the surface species of uranium on HTO underthe condition of flowing natural seawater and concentrated seawater (NaCl-NaHCO3-U) were recorded, with the bands o...-The i. r. spectra of Na4 [UO2 (CO3)3], Na [UO2 (OH)3] and the surface species of uranium on HTO underthe condition of flowing natural seawater and concentrated seawater (NaCl-NaHCO3-U) were recorded, with the bands of urany! of surface species obtained and the finding that iigands of surface species besides HTO are mainly water and OH, and there are some CO32- groups under the condition of natural seawater. Some relations between the complex properties and the j. r. spectroscopic characters for uranyl complexes were studied, and the transferred change quantity of surface complex was calculated.Structure models for surface species of adsorption are herein presented and the mechanism for uranium adsorption is deduced.展开更多
文摘探讨氨甲环酸(Tranexamic acid)不同给药方式在胫骨高位截骨术(High Tibial osteotomy)治疗内翻型膝关节骨性关节炎中的临床疗效。回顾性分析符合研究纳入标准内翻型膝关节骨性关节炎行HTO患者95例,根据TXA使用情况分为:A组(不使用,n=30),B组(静脉滴注,n=34,术前30 min 2 g TXA溶于100 mL生理盐水),C组(局部应用,n=31,2 g TXA溶于20 mL生理盐水,切口关闭后由引流管注入切口)。记录手术时间、术中出血量、术后引流量、术后输血、切口及其他并发症,有症状的静脉血栓栓塞症(VTE),根据身高、体重、术前血红蛋白浓度与术后最低血红蛋白浓度计算患者总失血量;并记录术前1天,术后1月、3月、6月美国特种外科医院膝关节评分(hospital for special surgery knee score,HSS评分)以及术前1天,术后1天、3天、1月、3月、6月视觉模拟评分法(Visual Analogue Scale,VAS)。B组和C组总失血量小于A组,B组和C组差异无统计学意义[(712.04±124.35) mL vs (431.26±88.15) mL vs (488.59±149.16) mL,PAB<0.05,PAC<0.05,PBC>0.05)];三组患者均未输血及出现血管事件,术前1天、术后3月、术后6月患肢HSS评分无明显差异,术后1月HSS评分A组较B组和C组低(P<0.05),B组和C组差异无统计学意义;术前1天,术后3月、6月VAS评分三组无明显差异,B组和C组术后1天、3天、1月VAS评分较A组低(P<0.05),B组和C组无统计学差异。静脉、局部应用TXA均可减少膝内翻型骨性关节炎行HTO围手术期失血量,且不增加术后静脉血栓栓塞症风险,但静脉、局部应用对减少围术期失血量效果无明显差异。
文摘In this study, concentrations of tritiated water(HTO) and non-exchangeable organically bound tritium(NE-OBT) and the NE-OBT/HTO ratios were determined in soil around Qinshan Nuclear Power Plant(NPP), Zhejiang, China, and their vertical profile and spatial distribution were investigated. Results showed variations in both the HTO and NE-OBT concentrations in the vertical profile. The HTO concentrations generally decreased firstly and then increased with the increasing depths, but the trend was not significant. The NE-OBT concentrations in the surface soils(0–5 cm) were considerably lower than those in the deep soils(5–25 cm) at all the sites. The NE-OBT/HTO ratios also show a variable vertical profile, initially increasing and then decreasing with increasing soil depth.Both the HTO and NE-OBT concentrations decreased with the increasing distance to the HWRs in deep soil layers(5–25 cm), revealing that the released tritium from the NPP affected the spatial distribution.
文摘This is second paper summarizing the study on the hydrous titanium oxide absorbent for extracting uranium fromseawater. The investigation is performed by means of X- ray photoelectronic energy spectroscopy for chemical analysis ( ESC A ) , determination of surface hydroxy radical, Fourier-transfer infrared spectrophotometry (FT-IR ) , electron paramagnetic resonance (EPR), inductively coupled Plasma torch (ICP), etc. The emphasis is laid upon the exploration of HTO surface and a discussion about the adsorption micromechanism.
文摘-The i. r. spectra of Na4 [UO2 (CO3)3], Na [UO2 (OH)3] and the surface species of uranium on HTO underthe condition of flowing natural seawater and concentrated seawater (NaCl-NaHCO3-U) were recorded, with the bands of urany! of surface species obtained and the finding that iigands of surface species besides HTO are mainly water and OH, and there are some CO32- groups under the condition of natural seawater. Some relations between the complex properties and the j. r. spectroscopic characters for uranyl complexes were studied, and the transferred change quantity of surface complex was calculated.Structure models for surface species of adsorption are herein presented and the mechanism for uranium adsorption is deduced.
