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11篇 您的检索式:作者名="Knute"
    题名 作者 年代 出处 被引量
1全髋关节置换术后血栓预防 使用便携式加压器或低分子量肝素的前瞻性随机对照研究显示文摘背景:血栓栓塞性疾病是全髋关节置换术后常见的并发症。本研究的目的在于比较新型便携式加压器与低分子量肝素在静脉血栓预防中的安全性和有效性。方法:全髋置换患者随机接受为期10d便携式加压器或者低分子量肝素预防治疗。术中开始使用加压器,并且这组患者在术后日服81mg的阿司匹林。使用肝素者,术后12-24h开始注射低分子量肝素。在10-12d后,所有患者行多普勒超声筛查双下肢小腿、大腿部深静脉血栓;有肺栓塞临床症状的患者均接受肺部螺旋CT扫描评价。记录两组出血和于预性治疗情况(即:依从性)。术后12周进行深静脉血栓和肺栓塞证据的临床评估。结果:410例患者(414髋)进行随机化分组;392例患者(395髋)进行手术安全性评估,386例(389髋)治疗结果有效。两组间的一般临床情况无差异。加压组严重出血发生率O%,低分子量肝素组6%。加压组远端和近端深静脉血栓发生率分别为3%、2%,肝素组3%、1%。肺栓塞发生率加压组1%,肝素组1%,无致命性肺栓塞。随访12周,1例加压组患者出现两项事件(深静脉血栓和肺栓塞),该患者术后第12天多普勒超声检查阴性。在静脉血栓栓塞预防上两组比较无明显差异。结论:全髋置换术后静脉血栓栓塞预防,便携式加压器与低分子量肝素比较,可明显减少严重出血。CliffordW. Colwell Jr. Mark I. Froimson Michael A.Mont Merrill A. Ritter Robert T. Trousdale Knute C. Buehler Andrew Spitzer Thomas K. Donaldson Douglas E. Padgett 勘武生(译) 2010中华骨科杂志2010,30,6:24
2A synthesis: The role of nutrients as constraints on carbon balances in boreal and arctic regions显示文摘Sarah E Knute H Nadelhoffer J 2002Plant and Soil2002,242,:1
3Long-Term Nitrogen Additions and Nitrogen Saturation in Two Temperate Forests显示文摘Alison H. Magill John D. Aber Glenn M. Berntson William H. McDowell Knute J. Nadelhoffer Jerry M. Melillo Paul Steudler 2000Ecosystems2000,,3:1
4Fine root turnover in forest ecosystems in relation to quantity and form of nitrogen availability: a comparison of two methods显示文摘John D. Aber Jerry M. Melillo Knute J. Nadelhoffer Charles A. McClaugherty John Pastor 1985Oecologia1985,,3:1
5Multi-element speciation of tea infusion using cation-exchange separation and size-exclusion chromatograph in combination with inductively coupled plasma mass spectrometry显示文摘Knute degard Walter lund 1997JAAS1997,12,:1
6Seasonal patterns of ammonium and nitrate uptake in nine temperate forest ecosystems显示文摘Knute J. Nadelhoffer John D. Aber Jerry M. Melillo 1984Plant and Soil1984,,3:1
7Nitrogen controls on fine root substrate quality in temperate forest ecosystems 显示文摘Hendricks J J John D A Knute J 2000Ecosystems2000,3,:1
8Forest biogeochemistry and primary production altered by nitrogen saturation显示文摘John D. Aber Alison Magill Steven G. Mcnulty Richard D. Boone Knute J. Nadelhoffer Marty Downs Richard Hallett 1995Water Air & Soil Pollution1995,,3:1
9Sources of nitrate in rivers draining sixteen watersheds in the northeastern U.S.: Isotopic constraints显示文摘Bernhard Mayer Elizabeth W. Boyer Christine Goodale Norbert A. Jaworski Nico van Breemen Robert W. Howarth Sybil Seitzinger Gilles Billen Kate Lajtha Knute Nadelhoffer Douwe Van Dam Leo J. Hetling Miloslav Nosal Keith Paustian 2002Biogeochemistry2002,,1:1
10Computer - assisted navigation software advancements improve the accuracy of total knee arthroplasty 显示文摘Ryan GM Kevin CA Knute CB 2010J Arthroplasty2010,4,:1
11A 15N tracer technique for assessing fine root production and mortality显示文摘Joseph J. Hendricks Knute J. Nadelhoffer John D. Aber 1997Oecologia1997,,3:1
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