目的:了解我国家加速康复外科研究现状和知识基础,为我国加速康复外科继续发展提供参考。方法:以Web of Science数据库为文献来源,检索我国加速康复外科相关文献,分析文献基本情况后利用CiteSpace对文献引文进行可视化分析。结果:共检出...目的:了解我国家加速康复外科研究现状和知识基础,为我国加速康复外科继续发展提供参考。方法:以Web of Science数据库为文献来源,检索我国加速康复外科相关文献,分析文献基本情况后利用CiteSpace对文献引文进行可视化分析。结果:共检出169篇中国加速康复外科相关SCI文献,文献数量近10年呈上升趋势,文献研究类型多为实验性研究,研究内容和知识基础涉及领域主要为胃肠外科和肝胆胰外科。结论:中国加速康复外科需要可操作性和可重复性强的实践方案,患者报道预后和患者观点需要被关注,以帮助改进、优化加速康复外科实施策略。展开更多
目的探讨新生儿胸腔镜手术中高碳酸血症对脑组织氧代谢产生的影响。方法选取2017年1月至2018年3月在广州市妇女儿童医疗中心行胸腔镜手术或腹腔镜手术的新生儿98例,根据手术方式分为胸腔镜组(48组)和腹腔镜组(50组)。比较2组患儿术前(T0...目的探讨新生儿胸腔镜手术中高碳酸血症对脑组织氧代谢产生的影响。方法选取2017年1月至2018年3月在广州市妇女儿童医疗中心行胸腔镜手术或腹腔镜手术的新生儿98例,根据手术方式分为胸腔镜组(48组)和腹腔镜组(50组)。比较2组患儿术前(T0)、麻醉诱导后(T1)、建立二氧化碳气胸/气腹后15 min(T2)、30 min(T3)、60 min(T4)和撤气胸/气腹后30 min(T5)、120 min(T6)的局部脑氧饱和度(rc SO2)、脉搏血氧饱和度(Sp O2)、动脉血二氧化碳分压(Pa CO2)、动脉血氧分压(Pa O2)、p H值和动脉血乳酸值。记录患儿术中rc SO2低于55%的情况。记录胸腔镜术中建立气胸使用的二氧化碳充气压力。结果 T2、T3、T4时胸腔镜组rc SO2明显低于腹腔镜组[(80±2)%比(81±2)%、(79±2)%比(80±2)%、(80±3)%比(81±2)%],差异均有统计学意义(均P <0.05)。2组患儿术中rc SO2均未低于55%。T0、T2、T3、T4、T5时胸腔镜组Pa CO2明显高于腹腔镜组[(39±3) mm Hg(1 mm Hg=0.133 k Pa)比(35±2) mm Hg、(48±4) mm Hg比(34±2) mm Hg、(56±7) mm Hg比(41±2) mm Hg、(65±10) mm Hg比(42±2) mm Hg、(42±3) mm Hg比(34±2) mm Hg],p H值明显低于腹腔镜组,差异均有统计学意义(均P <0.01)。T2、T3时,胸腔镜组Pa O2和Sp O2明显低于腹腔镜组(均P <0.01)。2组患儿各时点动脉血乳酸水平差异均无统计学意义(均P> 0.05)。本研究中建立气胸使用的二氧化碳充气压力为4~8 mm Hg,不同压力组之间的rc SO2和Pa CO2差异均无统计学意义(均P> 0.05)。结论新生儿在胸腔镜手术中会出现严重的高碳酸血症,但不会造成rc SO2的异常。使用4~8 mm Hg的二氧化碳充气压力建立气胸,对新生儿rc SO2没有影响。展开更多
Otoliths are biogenic carbonate minerals in the inner ear of teleost fish, whose compositions can record the physical and chem- ical conditions of the ambient water environment inhabited by individual fish. In this re...Otoliths are biogenic carbonate minerals in the inner ear of teleost fish, whose compositions can record the physical and chem- ical conditions of the ambient water environment inhabited by individual fish. In this research, the fishbones and otoliths of naked carp sampled near the Bird Island, offshore Lake Qinghai, were dated and analyzed for mineralogy and microchemical compositions. Comparing the microchemical compositions of ancient otoliths with those of modem otoliths, we conclude that the ancient naked carps inhabited a relict lake formed when the lake shrank from a high lake level, by combining with the AMS-lnC ages of fishbones and otoliths, the stratigraphy and surrounding topography of the sample site. AMS-14C dating resuits of ancient fishbones and otoliths show that these naked carps lived from 680 to 300 years ago, i.e. during the Ming Dynasty of China. The X-ray diffraction （XRD） patterns demonstrate that the ancient lapillus is composed of pure aragonite, iden- tical to modem one, indicating that the mineral of lapillus didn＇t change after a long time burial and that the ancient lapillus is suitable for comparative analysis thereafter. Microchemical results show that both ratios of Mg/Ca （（70.12±18.50）× 10-2） and δ18O （（1.76±1.03）‰） of ancient lapilli are significantly higher than those of modem lapilli （average Mg/Ca=（3.1 1±0.41）× 10-5 and δ18O =（-4.82±0.96）‰）. This reflects that the relict water body in which the ancient naked carp lived during the Ming Dynasty was characterized by higher Mg/Ca and δ18O ratios than modem Lake Qinghai, resulting from strong evaporation after being isolated from the main lake, similar to today＇s Lake Gahai. Based upon the stratigraphy and altitude of naked carp re- mains, it can be inferred that the altitude of lake level of Lake Qinghai reached at least 3202 m with a lake area of 4480 km2 during the Ming Dynasty, approximately ~5% larger than it is today.展开更多
文摘目的:了解我国家加速康复外科研究现状和知识基础,为我国加速康复外科继续发展提供参考。方法:以Web of Science数据库为文献来源,检索我国加速康复外科相关文献,分析文献基本情况后利用CiteSpace对文献引文进行可视化分析。结果:共检出169篇中国加速康复外科相关SCI文献,文献数量近10年呈上升趋势,文献研究类型多为实验性研究,研究内容和知识基础涉及领域主要为胃肠外科和肝胆胰外科。结论:中国加速康复外科需要可操作性和可重复性强的实践方案,患者报道预后和患者观点需要被关注,以帮助改进、优化加速康复外科实施策略。
文摘目的探讨新生儿胸腔镜手术中高碳酸血症对脑组织氧代谢产生的影响。方法选取2017年1月至2018年3月在广州市妇女儿童医疗中心行胸腔镜手术或腹腔镜手术的新生儿98例,根据手术方式分为胸腔镜组(48组)和腹腔镜组(50组)。比较2组患儿术前(T0)、麻醉诱导后(T1)、建立二氧化碳气胸/气腹后15 min(T2)、30 min(T3)、60 min(T4)和撤气胸/气腹后30 min(T5)、120 min(T6)的局部脑氧饱和度(rc SO2)、脉搏血氧饱和度(Sp O2)、动脉血二氧化碳分压(Pa CO2)、动脉血氧分压(Pa O2)、p H值和动脉血乳酸值。记录患儿术中rc SO2低于55%的情况。记录胸腔镜术中建立气胸使用的二氧化碳充气压力。结果 T2、T3、T4时胸腔镜组rc SO2明显低于腹腔镜组[(80±2)%比(81±2)%、(79±2)%比(80±2)%、(80±3)%比(81±2)%],差异均有统计学意义(均P <0.05)。2组患儿术中rc SO2均未低于55%。T0、T2、T3、T4、T5时胸腔镜组Pa CO2明显高于腹腔镜组[(39±3) mm Hg(1 mm Hg=0.133 k Pa)比(35±2) mm Hg、(48±4) mm Hg比(34±2) mm Hg、(56±7) mm Hg比(41±2) mm Hg、(65±10) mm Hg比(42±2) mm Hg、(42±3) mm Hg比(34±2) mm Hg],p H值明显低于腹腔镜组,差异均有统计学意义(均P <0.01)。T2、T3时,胸腔镜组Pa O2和Sp O2明显低于腹腔镜组(均P <0.01)。2组患儿各时点动脉血乳酸水平差异均无统计学意义(均P> 0.05)。本研究中建立气胸使用的二氧化碳充气压力为4~8 mm Hg,不同压力组之间的rc SO2和Pa CO2差异均无统计学意义(均P> 0.05)。结论新生儿在胸腔镜手术中会出现严重的高碳酸血症,但不会造成rc SO2的异常。使用4~8 mm Hg的二氧化碳充气压力建立气胸,对新生儿rc SO2没有影响。
基金supported by the National Basic Research Program of China(Grant No.2010CB833400)the National Natural Science Foundation of China(Grants Nos.41225015,41172308)
文摘Otoliths are biogenic carbonate minerals in the inner ear of teleost fish, whose compositions can record the physical and chem- ical conditions of the ambient water environment inhabited by individual fish. In this research, the fishbones and otoliths of naked carp sampled near the Bird Island, offshore Lake Qinghai, were dated and analyzed for mineralogy and microchemical compositions. Comparing the microchemical compositions of ancient otoliths with those of modem otoliths, we conclude that the ancient naked carps inhabited a relict lake formed when the lake shrank from a high lake level, by combining with the AMS-lnC ages of fishbones and otoliths, the stratigraphy and surrounding topography of the sample site. AMS-14C dating resuits of ancient fishbones and otoliths show that these naked carps lived from 680 to 300 years ago, i.e. during the Ming Dynasty of China. The X-ray diffraction （XRD） patterns demonstrate that the ancient lapillus is composed of pure aragonite, iden- tical to modem one, indicating that the mineral of lapillus didn＇t change after a long time burial and that the ancient lapillus is suitable for comparative analysis thereafter. Microchemical results show that both ratios of Mg/Ca （（70.12±18.50）× 10-2） and δ18O （（1.76±1.03）‰） of ancient lapilli are significantly higher than those of modem lapilli （average Mg/Ca=（3.1 1±0.41）× 10-5 and δ18O =（-4.82±0.96）‰）. This reflects that the relict water body in which the ancient naked carp lived during the Ming Dynasty was characterized by higher Mg/Ca and δ18O ratios than modem Lake Qinghai, resulting from strong evaporation after being isolated from the main lake, similar to today＇s Lake Gahai. Based upon the stratigraphy and altitude of naked carp re- mains, it can be inferred that the altitude of lake level of Lake Qinghai reached at least 3202 m with a lake area of 4480 km2 during the Ming Dynasty, approximately ~5% larger than it is today.
