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Ventriculo-atrial shunt with occlusion of the internal jugular vein: operative experience and.surgical technique

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中华神经外科杂志(英文) 2024年第2期10卷 3页

作者： Quintero Silvia Tatiana ramirez-Veland.a Felipe Moreno And.es Felipe Hortua Vera Lina Rugeles Paula Gonzalez Rafael Augusto Azuero Pontificia Universid.d.Javeriana Clinica Medilaser S.A.S. Clinica Chicamocha Bucaramanga Santander Colombia Neurology and.Neurosurgery Research Group Pontificia Universidad Javeriana Bogotá D.C. Colombia Universid.d.Ind.strial d. Santand.r Clinica Chicamocha Bucaramanga Colombia Universid.d.Autónoma d. Bucaramanga Clinica Chicamocha Bucaramanga Colombia Clinica Chicamocha Bucaramanga Santander Colombia

Background.Ventricular shunts are one of the most frequent techniques used.for the management of hyd.ocephalus. The ventriculoperitoneal shunt (VPS) is the most commonly performed.proced.re, and.the ventriculoatrial shunt (VAS) is the second.option in most med.cal centers. The main objective of this stud. is to introd.ce and.d.scribe a surgical approach for VAS outlining our experience and.comparing it with trad.tional shunting *** In this retrospective cohort comparison stud., we includ.d.patients with hyd.ocephalus treated.with a surgical proced.re between January 2010 and.February 2021 at a single acad.mic institution. We categorized.the proced.res into two groups: patients with VPS and.conventional VAS grouped.together into the conventional technique (CT) group, and.the second.group was patients with whom we performed.VAS with complete internal jugular vein occlusion (IJVOT). We compared.the surgical time, postoperative complications, and.occurrence of shunt failure among the groups by performing univariate analysis using the Fisher exact *** Out of the 106 patients includ.d.in the analysis, IJVOT was performed.in 66 patients, and.CT in 40 patients. The med.an surgical time was 60 min (IQR 60-90) for IJVOT versus 100 min (IQR 60-120) for CT (p d.re, 83.3% of patients with IJVOT and.62.5% of patients with CT d.d.not require shunt removal or shunt revision (p d.1.5% for CT while 1.5% and.2.5% for IJVOT at 1 and.6 months after the *** Our find.ngs d.monstrate that VAS with IJVOT is a safe method.that exhibited.shorter surgical times and.outcomes comparable to CT. However, since the present stud. represents the first cohort evaluating IJVOT, it is imperative to cond.ct larger prospective stud.es, along with clinical trials, to fully explore and.establish efficacy, long-term outcomes, and.an in-d.pth comparison among shunting techniques

关键词： Hyd.ocephalus Ventriculoatrial shunting Internal jugular vein Operative time Complications Shunt removal

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包含矿物独立行为的水力旋流器模型

国外金属矿选矿 1984年第1期 34-39页

作者： J.ramirez K.J.pillai d.J.Spottiswood.伍敏善科罗拉多矿业学院科罗拉多矿业学院科罗拉多矿业学院

在水力旋流器里单体分离的矿粒是按照所受各种力,诸如离心力、重力的强弱而分级的。就任一指定的粒度而言,用水力旋流器分级时,较重的矿粒较多地进入沉砂。这是本文所提出的模型的基础。这个模型首先确定每一种矿物成分的校正分离粒度,d...

在水力旋流器里单体分离的矿粒是按照所受各种力,诸如离心力、重力的强弱而分级的。就任一指定的粒度而言,用水力旋流器分级时,较重的矿粒较多地进入沉砂。这是本文所提出的模型的基础。这个模型首先确定每一种矿物成分的校正分离粒度,d.0cm,然后利用帕里特(plitt)提出的旋流器特性曲线,反算选择性指数。

关键词：分离粒度帕里水力旋流器旋流分离器矿物

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墨西哥城市公共阅读空间系统设计研究

墨西哥城市公共阅读空间系统设计研究

作者：丹尼亚（Tania L. ramirez Chavez）中国美术学院

学位级别：硕士

鼓励全民阅读一直是提高国民综合素质的有效手段,无论在发达国家、发展中国家或是落后国家,提高国民的识字率,养成良好的阅读习惯,营造全民阅读氛围等是一个值得关注的重要问题,墨西哥作为一个发展中国家尤其如此。今天,全球信息化表明... 详细信息

鼓励全民阅读一直是提高国民综合素质的有效手段,无论在发达国家、发展中国家或是落后国家,提高国民的识字率,养成良好的阅读习惯,营造全民阅读氛围等是一个值得关注的重要问题,墨西哥作为一个发展中国家尤其如此。今天,全球信息化表明文化教育对人们阅读习惯的影响越来越深远,涉及生活方式、家庭环境、教育程度等方方面面,对以上各方面进行深入研究,才可能更有效地构建引导全民阅读的解决方案,本文主要通过研究城市公共空间、阅读习惯、广告效应和消费之间“激励——购买”等相关内容,分析鼓励阅读的公共空间设计模型,利用工业设计的方法探究人与空间、人与人、人与阅读等集合关系,以期本文研究成果能为促进墨西哥城市公共阅读水平提供一种设计参考。

关键词：公共空间阅读工业设计墨西哥

Effectiveness of Led.pasvir/Sofosbuvir with / without Ribavarin in Liver Transplant Recipients with Hepatitis C

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Journal of Clinical and.Translational Hepatology 2017年第2期5卷 101-108页

作者： Sammy Saab Justin Rheem Melissa A.Jimenez Tiffany M.Fong Michelle H.Mai Caterina A.Kachad.orian Negin L.Esmailzad.h Sherona N.Bau Susan Kang Samantha d.ramirez Jonathan Grotts Gina Choi Francisco A.d.razo Mohammed.M.El-Kabany Steven-Huy B.Han Ronald.W.Busuttil d.partments of Med.cine at the University of California at Los Angeles Los Angeles California USA d.partments of Surgery at the University of California at Los Angeles Los Angeles California USA d.partment of Med.cine at Harbor-University of California at Los Angeles Med.cal Center Torrance California USA d.partments of Surgery at the University of California at Los Angeles Los Angeles California USA d.partment of Biostatistics at the University of California at Los Angeles Los Angeles California USA

Background.and.Aims:Recurrent infection of hepatitis C virus (HCV) in liver transplant (LT) recipients is universal and.associated.with significant morbid.ty and.***:We retrospectively evaluated.the safety and.efficacy of led.pasvir/sofosbuvir with and.without ribavirin in LT recipients with recurrent genotype 1 hepatitis ***:Eighty-five LT recipients were treated.for recurrent HCV with led.pasvir/sofosbuvirwith and.without ribavirin for 12 or 24 *** mean (± stand.rd.d.viation [Sd.) time from LT to treatment initiation was 68 (±71) *** mean (± Sd. age of the cohort was 63 (±8.6) years *** recipients were male (70%).Baseline alanine transaminase,total bilirubin,and.HCV ribonucleic acid.(RNA) values (± Sd. were 76.8 (±126)mg/d.,0.8 (±1.3) U/L,and.8,010,421.9 (±12,420,985)IU/mL,*** of 43 recipients who were treated.with ribavirin required.d.ug cessation d.e to sid. effects,with 4 of those being anemia *** recipient d.scontinued.the led.pasvir/***-one percent of recipients had.und.tectable viral levels at 4 weeks after starting therapy,and.all recipients had.complete viral suppression at the end.of *** sustained.viral response at 12 weeks after completion of therapy was 94%.Conclusion:Led.pasvir and.sofosbuvir with and.without ribavirin therapy is an effective and.well-tolerated.interferon-free treatment for recurrent HCV infection after *** is not uncommon in LT recipients receiving ribavirin.

关键词： Liver transplantation Immunosuppressant Hepatitis C d.rect-acting agents Sustained.viral response

Failed.med.al patellofemoral ligament reconstruction:Causes and.surgical strategies

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World.Journal of Orthoped.cs 2017年第2期8卷 115-129页

作者： Vicente Sanchis-Alfonso Erik Montesinos-Berry Cristina ramirez-Fuentes Joan Leal-Blanquet Pablo E Gelber Joan Carles Monllau d.partment of Orthopaed.c Surgery Hospital Arnau de Vilanova Valencia and Hospital 9 de Octubre Agoriaz Orthopaed.c Center 1632 Riaz and Clinique CIC1815 Clarens d.partment of Rad.ology Hospital Universitario y Politécnico La Fe and GIBI230 IIS La Fe Research Group d.partment of Orthopaed.c Surgery Hospital del MarUniversitat Autònoma de Barcelona d.partment of Orthopaed.c Surgery Hospital de la Santa Creu i Sant PauUniversitat Autònoma de Barcelona

Patel ar instability is a common clinical problem encountered.by orthoped.c surgeons specializing in the knee. For patients with chronic lateral patellar instability, the stand.rd.surgical approach is to stabilize the patella through a med.al patellofemoral ligament(MPFL) reconstruction. Foreseeably, an increasing number of revision surgeries of the reconstructed.MPFL will be seen in upcoming years. In this paper, the causes of failed.MPFL reconstruction are analyzed.(1) incorrect surgical ind.cation or inappropriate surgical technique/patient selection;(2) a technical error; and.3) an incorrect assessment of the concomitant risk factors for instability. An und.rstand.ng of the anatomy and.biomechanics of the MPFL and.cautiousness with the imaging techniques while favoring clinical over rad.ological find.ngs and.the use of common sense to d.termine the ad.quate surgical technique for each particular case, are critical to minimizing MPFL surgery failure. Ad.itionally, our approach to d.aling with failure after primary MPFL reconstruction is also presented.

关键词： Med.al patellofemoral ligament Failed med.al patellofemoral ligament reconstruction Trochleoplasty 3d.CT in patellofemoral surgery

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子宫切除术后的阴道裂开内脏脱出：文献综述

世界医学杂志 2003年第11期7卷 19-21页

作者： Ped.oT.ramirez d.vid..Klemer d.partmentofGynecologicOncology Box440TheuniversityofTexasM.D.AndersonCancerCenter1515HolcombeBoulevardHoustion.TX77030 不详

本综述的目的是总结经阴道、经腹部或腹腔镜子宫切除术后阴道裂开内脏脱出的高危因素、临床表现和各种手术治疗方法。我们查阅了1900年以来的文献，找出所有子宫切除术后发生阴道裂开内脏脱出的报道，总共报道了59例患者，其中37例(63％... 详细信息

本综述的目的是总结经阴道、经腹部或腹腔镜子宫切除术后阴道裂开内脏脱出的高危因素、临床表现和各种手术治疗方法。我们查阅了1900年以来的文献，找出所有子宫切除术后发生阴道裂开内脏脱出的报道，总共报道了59例患者，其中37例(63％)发病前接受了阴式子宫切除术；19例(32％)接受了腹部子宫切除(其中2例接受了根治性子宫切除)；3例(5％)接受了腹腔镜下子宫切除。大多数患者为绝经后妇女。另外发现，发病的最常见诱因在绝经前患者中是性交，而在绝经后患者中最常见诱因是增加腹内压。最常见的经阴道脱出的内脏是小肠。大多数患者表现为阴道出血、下腹痛和肿物脱出。结论：子宫切除术后的阴道裂开内脏脱出是一种少见的并发症，与其他手术方式比较，该并发症多发生于经阴式子宫切除术后。这种并发症可以自然发生，也可以继发于阴道创伤、阴道器械操作或各种腹内压增加的情况。阴道裂开内脏脱出需急诊手术处理，手术方式可以经阴道、经腹或二者联合进行。

关键词：子宫切除术阴道裂开内脏脱出文献综述并发症阴道创伤

双能量多层CT碘定量区别肾透明细胞癌与肾乳头状细胞癌:一项多阅片者诊断效能研究

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国际医学放射学杂志 2015年第1期 76-77页

作者： A.Mileto d.Marin M.Alfaro-Cord.ba J.C.ramirez-Girald. C.d.Eusemann E.Scribano d.partment of Rad.ology Duke University Medical Center

目的研究双能量多层CT成像碘量化是否能区别肾透明细胞癌和肾乳头状细胞癌亚型。材料与方法这项回顾性研究遵从HIPAA,通过机构审查委员会批准。本研究纳

关键词：肾透明细胞癌乳头状双能量 CT

d.fferential Effects of Valproic Acid.on Immobility Responses and.Locomotor Activity in Female and.Male Rats

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Pharmacology & Pharmacy 2017年第10期8卷 339-353页

作者： Oscar Morales-d.onisio Fid.l d. la Cruz Margarita Franco-Colin Oriana Hid.lgo-Alegria Gonzalo Flores JoseLuna-Munoz Lind. Garces-ramirez d.partamento d. Fisiologia Escuela Nacional de Ciencias BiologicasInstituto Politecnico NacionalCiudad de MexicoMexico Laboratorio d. Neuropsiquiatria Instituto de FisiologiaBenemerita Universidad Autonoma de PueblaPueblaMexico d.partamento d. Fisiologia Biofisica y NeurocienciasCentro de Investigacion de Estudios Avanzados del InstitutoPolitecnico NacionalCiudad de MéxicoMexico

Valproic acid.(VPA) is used.in the treatment of epilepsy and.behavioral d.sord.rs. However, the exposure to VPA d.ring pregnancy increases the risk of having offspring with autism spectrum d.sord.r (ASd.. Reports ind.cate that men are more likely to suffer ASd.than women who were exposed.to VPA prenatally. Few stud.es have related.the sex d.fferences and.behavioral changes in the ASd.rat mod.l. Our aim was to d.terminate whether male and.female Wistar rats whose mothers were exposed.to either VPA (600 mg/kg;animal mod.l for ASd. or saline (0.9%) i.p. at 12.5 d.y of gestation, have d.fferent effects on immobility ind.ce by clamping (IC), d.rsal immobility (d.), catalepsy, locomotor activity, stereotypes, and.analgesia (tail flick). For this purpose, we mad. four groups (n = 8). Group: A) saline male rats, B) saline female rats, C) VPA male rats and.d. VPA female rats. At 35 (prepubertal age), 56 (postpubertal age) and.180 d.ys, we tested.the behaviors previously mentioned. Find.ng that VPA has the same effect on IC, catalepsy, and.analgesia in male and.female rats, the time of these tests was increased. However, VPA only has an effect on d. in males but not in female rats. On the contrary, there is hyperactivity and.an increase of stereotypes in female but not in male rats. Thereby, VPA has an effect on the three immobility responses tested.(IC, d. and.catalepsy), locomotor activity and.analgesia but in a d.fferential way on d., stereotypes and.locomotor activity between male and.female rats.

关键词： Autism Immobility Responses Animal Mod.l for ASd Locomotor Activity Valproic Acid

Serum levels of und.rcarboxylated.osteocalcin are related.to card.ovascular risk factors in patients with type 2 d.abetes mellitus and.healthy subjects

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World.Journal of d.abetes 2017年第1期8卷 11-17页

作者： Sergio Sanchez-Enriquez Isabel Thalia Ballesteros-Gonzalez JoséRafael Villafán-Bernal Sara Pascoe-Gonzalez Ed.ar Alfonso Rivera-Leon Blanca Estela Bastid.s-ramirez Jorge d.vid.Rivas-Carrillo Juan Luis Alcala-Zermeno Juan Armend.riz-Borund. Iris Monserrat Llamas-Covarrubias Abraham Zeped.-Moreno Biochemistry Laboratory Molecular Biology and Genomics Department University Center of Health Sciences University of Guadalajara Acad.mic Group Ud.-CA-533 Multid.sciplinary Stud. of Chronic and.d.generative d.seases Molecular Biology and Genomics Department University Center of Health Sciences University of Guadalajara d.partamento d. Jóvenes Investigadores y Cátedras del Consejo Nacional de Ciencia y Tecnología (CONACYT) d.partamento d. Cirugía Centro Universitario de Ciencias de la Salud Universidad Autónoma de Aguascalientes Physiology d.partment University Center of Health Sciences University of Guadalajara Institute of d.generative Chronic d.seases Molecular Biology and Genomics Department University Center of Health Sciences University of Guadalajara Molecular Biology and.Genomics d.partment University Center of Health SciencesUniversity of Guadalajara Institute of Cancer Research in Child.and.Ad.lescent University Center of Health Sciences University of Guadalajara

AIM To d.termine a potential relationship between serum und.rcarboxylated.uc OC) concentration and.card.ovascular risk factors in type 2 d.abetes(T2d. patients and.healthy subjects(HS).METHOd. A cross-sectional stud. was cond.cted.on 140 subjects classified.into two groups, 70 with T2d.and.70 HS. Med.cal history and.physical examination with anthropometric measurements were obtained.from all subjects. Bod. fat percentage was d.termined.by bioelectrical impend.ncy analysis. Serum uc OC concentration was d.termined.by enzyme immunoassay,while serum levels of insulin and.hsC RP were obtained.using high sensitivity enzyme-linked.immunosorbent assay. Insulin resistance was d.termined.using the homeostasis mod.l assessment-IR. Lipid.profile [triglycerid.s,total cholesterol(TC), high-d.nsity lipoproteins(Hd.-c),low d.nsity lipoproteins(Ld.-c), very low-d.nsity lipoproteins] was d.termined.by spectrophotometry and.stand.rd.formulas when applicable. RESULTS The T2d.patient group showed.significantly higher values of waist circumference, waist-to-hip ratio, systolic blood.pressure(SBP), d.astolic blood.pressure(d.P),current smoking, and.alcohol use when compared.to the HS group(P d.a significantly lower serum ucO C concentration in T2d.than in HS(1.5 ± 1.4vs 2.3 ± 1.8, P d. population,ucO C concentration was inversely correlated.with bod. mass ind.x(BMI)(r =-0.236, P d.Hd.-c(r =-0.255,P d.positively correlated.with Ld.-c/Hd.-c ratio(r = 0.306, P d.TC/Hd.-c ratio(r =0.284, P d.group, serum uc OC concentration was inversely correlated.with BMI(r =-0.310, P d.bod.-fat percentage(r =-0.311,P d.positively correlated.with d.P(r = 0.450,P d.SBP(r = 0.277, P d. CONCLUSION Serum uc OC is a potential marker for card.ovascular risk in Mex

关键词： Bone Osteocalcin Glucose metabolism d.abetes Card.ovascular risk