带蒂脾段后腹膜固定术在门静脉高压症外科治疗中的应用

目的：评价带蒂脾段后腹膜固定术治疗门静脉高压症的临床应用可行性及疗效。方法选择肝炎后肝硬化、门静脉高压症、脾功能亢进患者44例,其中行带蒂脾段后腹膜固定术24例（观察组）,行全脾切除术20例（对照组）。比较两组患者手术时间、术中出血量、术后住院时间及术后并发症发生情况,以及周围血象（白细胞计数、血小板计数）、免疫功能指标（CD4、CD8、CD4/CD8）等。结果观察组手术时间明显短于对照组、术后并发症发生率明显低于对照组（均P＜0.05）;观察组术后10d、术后2个月白细胞计数均明显低于对照组（均P＜0.05）,术后3、10d及术后2个月血小板计数均明显低于对照组（均P＜0.05）;观察组术后10d CD4比例及IgG含量均明显高于对照组（均P＜0.05）,术后2个月CD4比例、CD4/CD8及IgA、IgM含量均明显高于对照组（均P＜0.05）,CD8比例明显低于对照组（P＜0.05）。结论带蒂脾段后腹膜固定手术是一种较好的保脾手术方式,保留了脾脏的部分或大部分功能,避免了术后门静脉血栓的发生,并且远期具有分流作用,技术上是安全可行的。     

全胸腔镜手术与胸腔镜辅助小切口手术对Ⅰ期非小细胞肺癌的临床疗效比较

目的比较全胸腔镜手术与胸腔镜辅助小切口手术对Ⅰ期非小细胞肺癌的临床疗效。方法选择86例Ⅰ期非小细胞肺癌患者,按随机数字表法分为使用全胸腔镜手术治疗组（全胸腔镜组46例,采用3孔法）及使用胸腔镜辅助小切口手术治疗组（胸腔镜辅助组40例,采用2孔法）。比较两组患者一般手术情况、术后生存质量及无瘤生存情况。结果两组患者的手术时间、术中出血量、术后带胸管时间及住院时间比较差异均无统计学意义（均P＞0.05）,全胸腔镜组患者术后胸腔液引流量[（217.8±50.5）ml]和视觉模拟评分（VAS）[（3.9±0.6）分]均低于胸腔镜辅助组[（258.0±48.6）ml、（6.5±1.2）分],差异均有统计学意义（t=3.75、12.96,均P＜0.05）。全胸腔镜组患者术后生存质量评分[总分（88.7±9.6）分]高于胸腔镜辅助组[总分（71.1±8.2）分],差异有统计学意义（t=9.1,P＜0.05）。两组患者术后无瘤生存时间比较差异无统计学意义（P＞0.05）。结论全胸腔镜手术治疗Ⅰ期非小细胞肺癌的近、远期疗效均较好,值得推广应用。     

下肢静脉曲张腔内激光治疗与传统剥脱手术治疗的远期疗效对比研究

目的 比较静脉腔内激光治疗（EVLT）和传统剥脱手术治疗下肢静脉曲张（VVLE）的远期疗效。方法 选取VVLE患者120例,随机分为EVLT 组与对照组,每组各60例。EVLT组采用EVLT治疗,对照组采用传统剥脱手术治疗。分别对两组患者手术并发症、术后1、2、3 年复发率以及术后生活质量进行对比评价。结果 术后3 个月EVLT 组患者生活质量调查表（CIVIQ）评分显著高于对照组（P＜0.05）,术后6 个月两组患者CIVIQ 评分比较则无统计学差异（P＞0.05）。EVLT 组患者术后皮下瘀血、感觉麻木、硬结、皮下脂肪液化感染的发生率均显著低于对照组（均P＜0.01）,皮肤灼伤的发生率则高于对照组（P＜0.05）,两组患者静脉炎的发生率无统计学差异（P＞0.05）;两组患者术后1、2、3年复发率比较均无统计学差异（均P＞0.05）。结论 应用EVLT治疗VVLE 手术并发症少,患者术后恢复较快,远期疗效理想,值得临床推广应用。     

PTGD 与腹腔镜胆囊切除序贯微创治疗高危急性胆囊炎疗效分析

目的 探讨经皮经肝胆囊穿刺引流术（PTGD）与腹腔镜胆囊切除（LC）序贯微创治疗高危急性胆囊炎（AC）的疗效。方法 对76 例高危AC患者根据就诊时患者全身状况、心肺功能及胆囊B 超检查结果,分别采用PTGD 加延期LC 治疗（36 例,为PTGD 组）及同期直接LC 治疗（40 例,为Non-PTGD 组）,观察并比较两组患者LC 手术时间、术中失血量、中转开腹率、术后并发症发生率及住院时间。结果 PTGD 组手术时间、住院时间均明显短于Non-PTGD 组（t =1.96、1.84,均P＜0.05）;PTGD 组术中失血量明显少于Non-PTGD 组（t =2.03,P＜0.05）;PTGD 组中转开腹率、术后并发症发生率均明显低于Non-PTGD 组（字2 =6.74、6.97,P＜0.05）。结论 PTGD 与LC 序贯微创治疗高危AC 疗效确切、安全,值得临床推广。     

右半结肠癌完全结肠系膜切除术清扫肠系膜根部淋巴结效果观察

目的 探讨右半结肠癌行完全结肠系膜切除术（CME）清扫肠系膜根部淋巴结的临床疗效。方法 以2010年12月 至2012 年12 月行CME 的57 例右半结肠癌患者作为观察组,同期接受传统结肠癌根治术的99 例右半结肠癌患者作为对照组,对两组患者的淋巴结清扫数量、平均出血量、手术时间、住院时间、术后排气、排便时间、手术并发症、2年局部复发率及生存率等情况进行比较,初步评价CME 清扫肠系膜根部淋巴结的临床效果。结果 CME 组与对照组总淋巴结清扫数量分别为（22.6±2.8）、（14.6±2.7）枚,CME 组淋巴结清扫数量明显多于对照组（P＜0.05）;CME 组平均出血量为（167.4±20.8）ml,对照组为（205.4±19.3）ml,CME 组出血量少于对照组（P＜0.05）;两组的手术时间、住院时间、术后排气、排便时间比较差异均无统计学意义（均P＞0.05）;CME 组手术并发症发生率与对照组比较差异无统计学意义（P ＞0.05）;Ⅲ期患者CME 组2 年局部复发率38.2％、生存率88.2％,对照组分别为64.8％和68.5％,两组差异有统计学意义（均P＜0.05）。结论 右半结肠癌患者采用CME 清扫肠系膜根部 淋巴结是安全和有效的。     

实时三维超声引导 VACORA真空微创穿刺活检系统在乳腺良性疾病微创诊疗中的应用

目的探讨三维超声引导下VACORA真空微创穿刺活检系统在乳腺良性疾病诊疗中的应用价值。方法选取术前诊断为乳腺良性肿块患者103例（223个肿块）,经二维超声引导治疗54例（二维组）,经实时三维超声引导治疗49例（三维组）,记录两组患者肿块容积、手术切除条数、手术耗时、术后血肿发生情况及血肿吸收情况。结果全部肿块均成功引导切除,两组患者手术耗时无明显差异（P＞0.05）,三维组肿块切除条数及术后血肿发生率均明显少于二维组（均P＜0.05）,而且血肿0.16～3.80ml者平均吸收时间均显著明显短于血肿4.7～19.5及25.2～32.0ml者（均P＜0.01）。两组患者术后随访1～12个月均无复发。结论超声引导VACORA真空微创穿刺活检系统适用于体积＜2.4ml乳腺良性肿块的微创切除,实时三维超声引导定位准确、安全、损伤小,是乳腺肿块微创切除的一种有效方法。     

微血管减压术联合电凝术与单纯微血管减压术治疗原发性三叉神经痛的疗效比较

目的对比微血管减压术（MVD）联合电凝术与单纯MVD治疗原发性三叉神经痛（TN）的临床疗效。方法将326例原发性TN患者按手术方案分为两组,MVD联合电凝术治疗131例（MVD+电凝组）,单纯MVD治疗195例（MVD组）,分析比较两组患者术后疗效、并发症等情况。结果MVD+电凝组和MVD组手术有效率分别为96.2%和92.3%,两组比较差异无统计学意义（P＞0.05）;术中血管压迫无法充分减压及无明确责任血管的患者手术有效率MVD+电凝组高于MVD组（95.2%vs67.7%,P＜0.05）;MVD+电凝组术后近期（≤6个月）术侧面部麻木发生率高于MVD组（21.4%vs7.7%,P＜0.05）,远期（＞6个月）术侧面部麻木发生率两组比较无统计学差异（4.6%vs2.6%,P＞0.05）。结论MVD联合电凝术和单纯MVD均能有效治疗原发性TN,相较于单纯MVD,MVD联合电凝术可以改善术中血管压迫无法充分减压及无明确责任血管的原发性TN患者的术后疗效,不会增加患者远期术侧面部麻木发生率。     

改良经脐单孔三通道腹腔镜精索静脉高位结扎术的临床应用

目的 探讨改良经脐单孔三通道腹腔镜精索静脉高位结扎术的可行性。方法 2011 年3 月至2013 年3 月对25例精索静脉曲张患者采用改良经脐单孔三通道腹腔镜精索静脉高位结扎术（A 组）,30 例精索静脉曲张患者采用传统三孔法腹腔镜下精索内静脉高位结扎术（B 组）,比较并分析两种术式的手术时间、术后住院时间、术后近期并发症、精液常规变化、术后美容效果等。结果 单侧及双侧手术时间A 组分别为（35.0±8.6）min 及（45.0±11.5）min, B组分别为（18.0±6.5）min 及（25.0±8.2）min,A 组长于B 组,差异有统计学意义（P＜0.05）。术后住院时间A 组为（2.1±0.3）d,B 组为（2.5±0.5）d,差异无统计学意义（P ＞0.05）。两组术后近期并发症发生率及精液改善率均无统计学差异（均P ＞0.05）。A 组手术美容效果优于B 组。结论 改良经脐单孔三通道腹腔镜精索静脉高位结扎术不需专用单孔多通道操作平台,手术操作简化,安全有效,术后腹壁不留瘢痕,值得临床推广。     

碘伏术前消毒阴道、术中冲洗宫腔预防急诊剖宫产术后切口感染疗效观察

目的 探讨碘伏术前消毒阴道、术中冲洗宫腔对产妇急诊剖宫产术后腹部切口及子宫感染有无预防作用。方法 选取2010 年3 月至2014 年6 月行急诊剖宫产术的产妇218例,随机分为3组,均采用抗生素围术期用药（头孢唑啉钠针2.0g,术中断脐后及术后各1次,静脉滴注）。Ⅰ组（81 例）0.5%碘伏术前消毒阴道、术中冲洗宫腔;Ⅱ组（73 例）0.9%氯化钠溶液术中冲洗宫腔;Ⅲ组（64 例）不做上述处理,比较3 组产妇术后腹部切口及子宫感染发生率。结果 术后腹部切口感染：Ⅰ组3例,Ⅱ组2例,Ⅲ组4例;3组比较,差异无统计学意义（P＞0.05）;术后子宫感染：Ⅰ组2 例,Ⅱ组4 例,Ⅲ组7 例;Ⅰ组与Ⅲ组比较,差异有统计学意义（P＜0.05）;Ⅰ组与Ⅱ组、Ⅱ组与Ⅲ组比较,差异均无统计学意义（均P＞0.05）。结论 在合理预防性使用抗生素前提下,碘伏术前消毒阴道、术中冲洗宫腔可降低急诊剖宫产术后子宫感染发生率。     

替吉奥联合奥沙利铂一线治疗晚期食管癌的研究

目的 探讨奥沙利铂（OXA）联合替吉奥胶囊一线治疗晚期食管癌的疗效及不良反应。方法 将35 例采用OXA联合替吉奥胶囊（SOX 方案）化疗的晚期食管癌患者设为治疗组,32 例行顺铂（DDP）联合氟尿嘧啶（DF 方案）化疗的患者设为对照组。观察及随访两组患者的近、远期疗效及不良反应。结果 治疗组及对照组的近期有效率分别为62.9%和37.5%,比较有统计学差异（P＜0.05）,疾病控制率分别为85.7%和65.6%,组间比较无统计学差异（P＞0.05）。治疗组的中位生存期（12.4 个月）与对照组（10.4 个月）相比有统计学差异（P＜0.05）,两组患者1年生存率分别为54.3%和34.4%,2 年生存率分别为5.7%和0.0%,两组间均无统计学差异（字2=2.680、2.654,均P＞0.05）。在不良反应方面,两组患者的血液学、消化道不良反应及肝功能损害比较无统计学差异（均P＞0.05）,治疗组神经系统不良反应发生率高于对照组（P＜0.05）。结论 OXA 联合替吉奥（SOX 方案）治疗晚期食管癌疗效较为肯定,患者耐受良好。     

RECENT PROGRESS ON SPHERICAL HARMONIC APPROXIMATION MADE BY BNU RESEARCH GROUP ——In memory of Professor Sun Yongsheng

As early as in 1990, Professor Sun Yongsheng, suggested his students at Beijing Normal University to consider research problems on the unit sphere. Under his guidance and encouragement his students started the research on spherical harmonic analysis and approximation. In this paper, we incompletely introduce the main achievements in this area obtained by our group and relative researchers during recent 5 years （2001-2005）. The main topics are： convergence of Cesaro summability, a.e. and strong summability of Fourier-Laplace series; smoothness and K-functionals; Kolmogorov and linear widths.     

On a class of self-similar processes with stationary increments in higher order Wiener chaoses

We study a class of self-similar processes with stationary increments belonging to higher order Wiener chaoses which are similar to Hermite processes. We obtain an almost sure wavelet-like expansion of these processes. This allows us to compute the pointwise and local Hölder regularity of sample paths and to analyse their behaviour at infinity. We also provide some results on the Hausdorff dimension of the range and graphs of multidimensional anisotropic self-similar processes with stationary increments defined by multiple Wiener–Itô integrals.     

A REPRESENTATION FORMULA RELATED TO SCHR(O)DINGER OPERATORS

Schr(o)dinger operator is a central subject in the mathematical study of quantum mechanics.Consider the Schrodinger operator H = -△ V on R, where △ = d2/dx2 and the potential function V is real valued. In Fourier analysis, it is well-known that a square integrable function admits an expansion with exponentials as eigenfunctions of -△. A natural conjecture is that an L2 function admits a similar expansion in terms of "eigenfunctions" of H, a perturbation of the Laplacian (see [7], Ch. Ⅺ and the notes), under certain condition on V.     

On a class of Riemann surfaces

It is considered the class of Riemann surfaces with dimT1 = 0, where T1 is a subclass of exact harmonic forms which is one of the factors in the orthogonal decomposition of the spaceΩH of harmonic forms of the surface, namely The surfaces in the class OHD and the class of planar surfaces satisfy dimT1 = 0. A.Pfluger posed the question whether there might exist other surfaces outside those two classes. Here it is shown that in the case of finite genus g, we should look for a surface S with dimT1 = 0 among the surfaces of the form Sg\K , where Sg is a closed surface of genus g and K a compact set of positive harmonic measure with perfect components and very irregular boundary.     

CONTENTS OF VOLUME 30

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Instructions for contributions

正Applied Mathematics-A Journal of Chinese Universities,Series B(Appl.Math.J.Chinese Univ.,Ser.B)is a comprehensive applied mathematics journal jointly sponsored by Zhejiang University,China Society for Industrial and Applied Mathematics,and Springer-Verlag.It is a quarterly journal with     

Journal of Mathematical Research with Applications Guide for Authors

正Journal overview:Journal of Mathematical Research with Applications(JMRA),formerly Journal of Mathematical Research and Exposition(JMRE)created in 1981,one of the transactions of China Society for Industrial and Applied Mathematics,is a home for original research papers of the highest quality in all areas of mathematics with applications.The target audience comprises:pure and applied mathematicians,graduate students in broad fields of sciences and technology,scientists and engineers interested in mathematics.     

Staircase transportation problems with superadditive rewards and cumulative capacities

A cumulative-capacitated transportation problem is studied. The supply nodes and demand nodes are each chains. Shipments from a supply node to a demand node are possible only if the pair lies in a sublattice, or equivalently, in a staircase disjoint union of rectangles, of the product of the two chains. There are (lattice) superadditive upper bounds on the cumulative flows in all leading subrectangles of each rectangle. It is shown that there is a greatest cumulative flow formed by the natural generalization of the South-West Corner Rule that respects cumulative-flow capacities; it has maximum reward when the rewards are (lattice) superadditive; it is integer if the supplies, demands and capacities are integer; and it can be calculated myopically in linear time. The result is specialized to earlier work of Hoeffding (1940), Fréchet (1951), Lorentz (1953), Hoffman (1963) and Barnes and Hoffman (1985). Applications are given to extreme constrained bivariate distributions, optimal distribution with limited one-way product substitution and, generalizing results of Derman and Klein (1958), optimal sales with age-dependent rewards and capacities.To our friend, Philip Wolfe, with admiration and affection, on the occasion of his 65th birthday.Research was supported respectively by the IBM T.J. Watson and IBM Almaden Research Centers and is a minor revision of the IBM Research Report [6].     

Boundedness for commutators of multipliers on Hardy type spaces

In this paper, we study the commutators generalized by multipliers and a BMO function. Under some assumptions, we establish its boundedness properties from certain atomic Hardy space Hb^p（R^n） into the Lebesgue space L^p with p 〈 1.