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目的 探讨重度子痫前期产妇剖宫产重比重布比卡因蛛网膜下腔阻滞麻醉(腰麻)的适合剂量。方法 选取200例重度子痫前期产妇,ASAⅠ级或Ⅱ级,按随机数字表法分为4组,每组各50 例,相应各组鞘内注入布比卡因剂量分别为10、8、6 及4mg,并混合2.5μg 舒芬太尼。选择L3~4行腰硬联合穿刺,注药10min 后记录麻醉平面。根据结果进行Probit 回归分析,计算布比卡因腰麻的ED50和ED95。观察各组利多卡因及去氧肾上腺素的用量、肌松效果及患者麻醉满意度,观察各组术中并发症以及新生儿的Apgar 评分和脐动脉pH。结果 重度子痫前期患者腰麻剖宫产布比卡因ED50 和ED95分别为:6.51(95%CI:5.81~7.01)和8.68(95%CI:7.96~10.26)。4 组患者10min 后麻醉平面的差异均有统计学意义(均P<0.05)。4mg 组利多卡因用量高于其他3组,差异有统计学意义(P<0.05)。8mg 组、10mg 组去氧肾上腺素的用量高于其他两组,差异均有统计学意义(均P<0.05)。低血压的发生率8mg 组、10mg 组高于其他两组,差异均有统计学意义(均P<0.05)。4 组间其他不良反应恶心、呕吐、寒战以及心动过缓发生率的差异无统计学意义(P>0.05)。4 组胎儿娩出后1、5min Apgar 评分及脐动脉血气分析的结果差异均无统计学意义(均P>0.05)。结论 重度子痫前期产妇剖宫产鞘内注入6mg 布比卡因混合2.5μg舒芬太尼,必要时辅以硬膜外麻醉,麻醉效果确切,血流动力学稳定,适合该类患者手术麻醉。 相似文献
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INFLUENCE OF HIGH PRESSURE ON EMISSION SPECTRA AND CRYSTAL FIELD STRENGTH FOR Eu3+ IN GdOBr 下载免费PDF全文
The emission spectra of the Eu3+ion in GdOBr∶Eu3+ were measured in the range of pressure from 0 GPa to 12.4 GPa. The energy level schemes establis hed from the spectra show that the splittings of the 7F1,7F3 and 5D1 multiplets decrease obviously with increasing pressure. The crystal-field parameters Bkq and the crystal-field strength parameter S versusBkq were determined at different pressures. With pressurization S reduces and theJ-mixings of the state functions for the Eu3+ ion decrease, which is in agreement with the decrease of the multiplet splittings. This shows that for Eu3+ in REOX∶Eu3+ the diminution of the crystal-field strength with pressure, the authenticity of which is under suspicion for several years, is certain. 相似文献
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Sharpless四唑合成中捕获双四唑锌配合物 总被引:5,自引:0,他引:5
The reaction of malononitrile with ZnCl2 and NaN3 in the presence of 2,2′-bipyridine and water affords the first bis(tetrazole) Zn-complex intermediate, mono(2,2′-bipyridine)bis(tetrazolyl)methane aqua zinc(Ⅱ), [Zn(2,2′-bpy)(BTZ)(H2O)]·(H2O)2 (1) which gives a clue for Demko-Sharpless′ tetrazole synthesis. Crystal data for 1: C13H18N10O4Zn, Mr=443.74, monoclinic, space group P21/c, a=12.5705(18), b=16.078(2), c=9.1921(13)?, β=95.010(3)°, V=1850.7(5)?3, Z=4. CCDC: 197788. 相似文献
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王立中 《中国科学A辑(英文版)》2002,45(12):1578-1581
In this paper, we focus on the structure of p-blocks with defect group satisfying some special condition. These special conditions
include: two elements of the defect group are conjugate to each other in defect D if and only if they are conjugate to each
other in G; the number of conjugacy classes whose p-part is contained in P by conjugacy is not larger than ∣P∣ 相似文献
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运用局部表示论以及Brauer的一些原始思想研究了满足条件K (B)–L (B)=1的块, 得到了这种块的结构及其亏群的一些性质. 特别地, 作为这些性质的一个推论, 对这种块证明了K (B)猜想. 相似文献
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给出了稀土离子电子态在高静水压下的某些特性,包括高压下的发光光 谱及能级特性,晶体场强度的压力效应,4f电子库仑排斥及自旋轨道耦合等作用随压力 的变化等。 相似文献
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二维纳米空洞方格:诺氟沙星锰(Ⅱ)配合物 总被引:2,自引:0,他引:2
The reactions of norfloxacin (H-Norf) with Mn(ClO4)2·6H2O and Mn(OH)2 yield Mn(H-Norf)(ClO4)2·2H2O (1) and [Mn(Norf)2·4H2O]n (2) , respectively. 1 is monomeric while 2 has a novel 2D neutral square grid with an antibacterial drug as building block. Crystal data for 1: triclinic, space group P1 (No.2), a=9.0939(3), b=9.4395(3), c=12.7182(3)?, α=111.447(2), β=90.340(2), γ=112.357(1)°, V=926.34(5)?3, Z=1, ρcacl=1.664g·cm-3. MoKα radiation (λ=0.71073?), T=293(2)K, μ=0.595mm-1, R1=0.0692, wR2=0.1482 for 2320 observed reflections from 4390 independent reflections, GOF=0.940; Crystal data for 2: Monoclinic, P21/c, a=5.7530(12), b=21.865(4), c=13.343(3)?, β=98.25(3)°, V=1661.1(6)?3, Z=2, ρcacl=1.527g·cm-3, T=293(2)K, μ=0.477mm-1, R1=0.0531, wR2=0.1552 for 2070 observed reflections from 2870 independent reflections, GOF=1.384. CCDC: 140819; 151063. 相似文献