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1457篇 您的检索式:作者名="K M Williams"
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1高危患者目标血压与心血管病预后显示文摘指南推荐血压目标值应〈140/90 mmHg(1mmHg=0.133kPa)以减少心血管事件的发生。但与其他心血管病预后(如冠状动脉事件)相比,包括脑卒中及心力衰竭在内的心血管病预后与收缩压下降关系更密切。一些心血管事件(如冠状动脉事件)风险在收缩压低时亦增高,风险-收缩压关系呈J形曲线,而脑卒中与血压不是J形曲线关系。B?hm M Schumacher H Teo KK Lonn EM Mahfoud F Mann JF Mancia G Redon J Schmieder RE Sliwa K Weber MA Williams BYusuf S 曲浥晨 叶鹏 2017中华高血压杂志2017,25,6:14
2Factors associated with time to laparoscopic cholecystectomy for acute cholecystitis显示文摘AIM: To determine patient and process of care factors associated with performance of timely laparoscopic cholecystectomy for acute cholecystitis. METHODS: A retrospective medical record review of 88 consecutive patients with acute cholecystitis was conducted. Data collected included demographic data, co-morbidities, symptoms and physical findings at presentation, laboratory and radiological investigations, length of stay, complications, and admission service (medical or surgical). Patients not undergoing cholecystectomy during this hospitalization were excluded from analysis. Hierarchical generalized linear models were constructed to assess the association of pre-operative diagnostic procedures, presenting signs, and admitting service with time to surgery.RESULTS: Seventy cases met inclusion and exclusion criteria, among which 12 were admitted to the medical service and 58 to the surgical service. Mean ± SD time to surgery was 39.3 ± 43 h, with 87% of operations performed within 72 h of hospital arrival. In the adjusted models, longer time to surgery was associated with number of diagnostic studies and endoscopic retrograde cholangio-pancreatography (ERCP, P = 0.01) as well with admission to medical service without adjustment for ERCP (P < 0.05). Patients undergoing both magnetic resonance cholangiopancreatography (MRCP) and computed tomography (CT) scans experienced the longest waits for surgery. Patients admitted to the surgical versus medical service underwent surgery earlier (30.4 ± 34.9 vs 82.7 ± 55.1 h, P < 0.01), had less post-operative complications (12% vs 58%, P < 0.01), and shorter length of stay (4.3 ± 3.4 vs 8.1 ± 5.2 d, P < 0.01).CONCLUSION: Admission to the medical service and performance of numerous diagnostic procedures, ERCP, or MRCP combined with CT scan were associated with longer time to surgery. Expeditious performance of ERCP and MRCP and admission of medically stable patients with suspected cholecystitis to the surgical service to speed up time to surgery should be considered.Chris N Daniak David Peretz Jonathan M Fine Yun Wang Alan K Meinke William B Hale 2008World Journal of Gastroenterology2008,14,7:13
3Abdominal applications of diffusion-weighted magnetic resonance imaging: Where do we stand?显示文摘Diffusion-weighted imaging (DWI) is one of the magnetic resonance imaging (MRI) sequences providing qualitative as well as quantitative information at a cellular level. It has been widely used for various applications in the central nervous system. Over the past decade, various extracranial applications of DWI have been increasingly explored, as it may detect changes even before signal alterations or morphological abnormalities become apparent on other pulse sequences. Initial results from abdominal MRI applications are promising, particularly in oncological settings and for the detection of abscesses. The purpose of this article is to describe the clinically relevant basic concepts of DWI, techniques to perform abdominal DWI, its analysis and applications in abdominal visceral MR imaging, in addition to a brief overview of whole body DWI MRI.Ajaykumar C Morani Khaled M Elsayes Peter S Liu William J Weadock Janio Szklaruk Jonathan Russell Dillman Asra Khan Thomas L Chenevert Hero K Hussain 2013World Journal of Radiology2013,5,3:12
4Model combining pre-transplant tumor biomarkers and tumor size shows more utility in predicting hepatocellular carcinoma recurrence and survival than the BALAD models显示文摘AIM To assess the performance of BALAD, BALAD-2 and their component biomarkers in predicting outcome of hepatocellular carcinoma(HCC) patients after liver transplant.METHODS BALAD score and BALAD-2 class are derived from bilirubin, albumin, alpha-fetoprotein(AFP), Lens culinaris agglutinin-reactive AFP(AFP-L3), and des-gammacarboxyprothrombin(DCP). Pre-transplant AFP, AFP-L3 and DCP were measured in 113 patients transplanted for HCC from 2000 to 2008. Hazard ratios(HR) for recurrence and death were calculated. Univariate and multivariate regression analyses were conducted. C-statistics were used to compare biomarker-based to predictive models. RESULTS During a median follow-up of 12.2 years, 38 patients recurred and 87 died. The HRs for recurrence in patients with elevated AFP, AFP-L3, and DCP defined by BALAD cut-off values were 2.42(1.18-5.00), 1.86(0.98-3.52), and 2.83(1.42-5.61), respectively. For BALAD, the HRs for recurrence and death per unit increased score were 1.48(1.15-1.91) and 1.59(1.28-1.97). For BALAD-2, the HRs for recurrence and death per unit increased class were 1.45(1.06-1.98) and 1.38(1.09-1.76). For recurrence prediction, the combination of three biomarkers had the highest c-statistic of 0.66 vs. 0.64, 0.61, 0.53, and 0.53 for BALAD, BALAD-2, Milan, and UCSF, respectively. Similarly, for death prediction, the combination of three biomarkers had the highest c-statistic of 0.66 vs 0.65,0.61, 0.52, and 0.50 for BALAD, BALAD-2, Milan, and UCSF. A new model combining biomarkers with tumor size at the time of transplant(S-LAD) demonstrated the highest predictive capability with c-statistics of 0.71 and 0.69 for recurrence and death. CONCLUSION BALAD and BALAD-2 are valid in transplant HCC patients, but less predictive than the three biomarkers in combination or the three biomarkers in combination with maximal tumor diameter(S-LAD).Nicha Wongjarupong Gabriela M Negron-Ocasio Roongruedee Chaiteerakij Benyam D Addissie Essa A Mohamed Kristin C Mara William S Harmsen J Paul Theobald Brian E Peters Joseph G Balsanek Melissa M Ward Nasra H Giama Sudhakar K Venkatesh Denise M Harnois Michael R Charlton Hiroyuki Yamada Alicia Algeciras-Schimnich Melissa R Snyder Terry M Therneau Lewis R Roberts 2018World Journal of Gastroenterology2018,24,12:5
5健康领域的文化能力显示文摘1背景 尽管人类对其他社会的兴趣纵贯历史的各个阶段,但是检验不同文化概念对人类健康实践的影响从20世纪才开始,当时是伴随着长期的人类学田野调查产生的,这些田野调查揭露了不同文化之间相关卫生实践的多样性、复杂性和连续性。Napier A D Ancarno C Butler B Calabrese j Chater A Chatterjee H Guesnet F Home R Jacyna S Jadhav S Macdonald A Neuendorf U Parkhurst A Reynolds R Scambler G Shamdasani S Smith S Z Stougaard-Nielsen J Thomson L Tyler N Volkmann A M Walker T Watson J Williams AC Willott C Wilson J Woolf K 2016中国卫生政策研究2016,9,2:5
6The Changing Cold Regions Network:Observation,diagnosis and prediction of environmental change in the Saskatchewan and Mackenzie River Basins,Canada显示文摘Climate change is causing rapid and severe changes to many Earth systems and processes,with widespread cryospheric,ecological,and hydrological impacts globally,and especially in high northern latitudes.This is of major societal concern and there is an urgent need for improved understanding and predictive tools for environmental management.The Changing Cold Regions Network(CCRN)is a Canadian research consortium with a focus to integrate existing and new experimental data with modelling and remote sensing products to understand,diagnose,and predict changing land,water,and climate,and their interactions and feedbacks over the geographic domain of the Mackenzie and Saskatchewan River Basins in Canada.The network operates a set of 14 unique and focused Water,Ecosystem,Cryosphere and Climate(WECC)observatories within this region,which provide opportunities to observe and understand processes and their interaction,as well as develop and test numerical simulation models,and provide validation data for remote sensing products.This paper describes this network and its observational,experimental,and modelling programme.An overview of many of the recent Earth system changes observed across the study region is provided,and some local insights from WECC observatories that may partly explain regional patterns and trends are described.Several of the model products being developed are discussed,and linkages with the local to international user community are reviewed—In particular,the use of WECC data towards model and remote sensing product calibration and validation is highlighted.Some future activities and prospects for the network are also presented at the end of the paper.Chris M DEBEER Howard S WHEATER William L QUINTON Sean K CAREY Ronald E STEWART Murray D MACKAY Philip MARSH 2015Science China Earth Sciences2015,58,1:5
7Ovarian autoimmune disease: clinical concepts and anima models显示文摘卵巢不是一个 immunologically 给予优惠的机关,但是在为卵巢特定的抗原的 tolerogenic 机制的一个故障在生育力上有灾难性的后果在里面女人,和这在自体免疫的疾病的鼠科的模型被复制。孤立的卵巢的自体免疫的疾病在女人是稀罕的,由于疾病和无能到的严厉可能播送越过代授与卵巢的疾病的基因信息。尽管如此,自体免疫的卵巢炎经常与另外的自体免疫的疾病联合被观察,特别地自体免疫的肾的疾病,并且在社会和单个健康上拿使用费。在老鼠的研究揭示了保护卵巢免受自体免疫的攻击的伤害的至少二机制。这些机制为自体免疫的管理者(亚耳河) 由导出胸腺的规章的 T 房间,以及一个角色包括 autoreactive T 房间的控制,在髓的 thymic 导致限制织物的抗原的表示的一个 transcriptional 管理者上皮的房间在 T 房间的开发期间。尽管后者机制不完全地被定义,也的失败导致自体免疫调停指向和卵巢的滤泡的弄空,这很好被建立。在这评论,我们将探讨自体免疫调停的临床的特征和后果在女人的卵巢的不孕,以及由动物揭示了的疾病的可能的机制当模特儿。Bryce D Warren William K Kinsey Lynda K McGinnis Lane K Christenson Susmita Jasti Anne M Stevens Brian K Petroff Margaret G Petroff 2014Cellular & Molecular Immunology2014,11,6:3
8Sofosbuvir with pegylated interferon alfa-2a and ribavirin for treatment-naive patients with hepatitis C genotype-1 infection (ATOMIC): an open-label, randomised, multicentre phase 2 trial显示文摘Kris V Kowdley Eric Lawitz Israel Crespo Tarek Hassanein Mitchell N Davis Michael DeMicco David E Bernstein Nezam Afdhal John M Vierling Stuart C Gordon Jane K Anderson Robert H Hyland Hadas Dvory-Sobol Di An Robert G Hindes Efsevia Albanis William T Symo 2013The Lancet2013,,9883:3
9Appropriateness of systemic treatments in unresectable metastatic well-differentiated pancreatic neuroendocrine tumors显示文摘AIM:To evaluate systemic treatment choices in unresectable metastatic well-differentiated pancreatic neuroendocrine tumors(PNETs)and provide consensus treatment recommendations.METHODS:Systemic treatment options for pancreatic neuroendocrine tumors have expanded in recent years to include somatostatin analogs,angiogenesis inhibitors,inhibitors of mammalian target of rapamycinand cytotoxic agents.At this time,there is little data to guide treatment selection and sequence.We therefore assembled a panel of expert physicians to evaluate systemic treatment choices and provide consensus treatment recommendations.Treatment appropriateness ratings were collected using the RAND/UCLA modified Delphi process.After studying the literature,a multidisciplinary panel of 10 physicians assessed the appropriateness of various medical treatment scenarios on a 1-9 scale.Ratings were done both before and after an extended discussion of the evidence.Quantitative measurements of agreement were made and consensus statements developed from the second round ratings.RESULTS:Specialties represented were medical and surgical oncology,interventional radiology,and gastroenterology.Panelists had practiced for a mean of15.5 years(range:6-33).Among 202 rated scenarios,disagreement decreased from 13.2%(26 scenarios)before the face-to-face discussion of evidence to 1%(2)after.In the final ratings,46.5%(94 scenarios)were rated inappropriate,21.8%(44)were uncertain,and30.7%(62)were appropriate.Consensus statements from the scenarios included:(1)it is appropriate to use somatostatin analogs as first line therapy in patients with hormonally functional tumors and may be appropriate in patients who are asymptomatic;(2)it is appropriate to use everolimus,sunitinib,or cytotoxic chemotherapy therapy as first line therapy in patients with symptomatic or progressive tumors;and(3)beyond first line,these same agents can be used.In patients with uncontrolled secretory symptoms,octreotide LAR doses can be titrated up to 60 mg every4 wk or up to 40 mg every 3 or 4 wk.CONCLUSION:Using the Delphi process allowed physician experts to systematically obtain a consensus on the appropriateness of a variety of medical therapies in patients with PNETs.Jonathan R Strosberg George A Fisher Al B Benson Lowell B Anthony Bulent Arslan John F Gibbs Edward Greeno Renuka V Iyer Michelle K Kim William J Maples Philip A Philip Edward M Wolin Dasha Cherepanov Michael S Broder 2015World Journal of Gastroenterology2015,21,8:2
10Gastrointestinal and liver disease in patients with schizophrenia:A narrative review显示文摘Schizophrenia is a severe mental illness which can have a devastating impact onan individual’s quality of life. Comorbidities are high amongst patients and lifeexpectancy is approximately 15 years less than the general population. Despite thewell-known increased mortality, little is known about the impact of gastrointestinaland liver disease on patients with schizophrenia. We aimed to reviewthe literature and to make recommendations regarding future care. Literaturesearches were performed on PubMed to identify studies related to gastrointestinaland liver disease in patients with schizophrenia. High rates of chronic liverdisease were reported, with Non-Alcoholic Fatty Liver Disease being of particularconcern;antipsychotics and metabolic syndrome were contributing factors. Ratesof acute liver failure were low but have been associated with antipsychotic useand paracetamol overdose. Coeliac disease has historically been linked to schizophrenia;however, recent research suggests that a causal link is yet to be proven.Evidence is emerging regarding the relationships between schizophrenia andpeptic ulcer disease, inflammatory bowel disease and irritable bowel syndrome;clinical vigilance regarding these conditions should be high. Patients with schizophreniapoorly engage with bowel cancer screening programmes, leading to latediagnosis and increased mortality. Clozapine induced constipation is a significantissue for many patients and requires close monitoring. There is a significantburden of gastrointestinal and liver disease amongst patients with schizophrenia.Better levels of support from all members of the medical team are essential toensure that appropriate, timely care is provided.Rebecca K Grant William M Brindle Mhairi C Donnelly Pauline M McConville Thomas G Stroud Lorenzo Bandieri John N Plevris 2022World Journal of Gastroenterology2022,28,38:2
11糖尿病患者累积收缩压负荷与心血管病风险的关系显示文摘该研究旨在评估2型糖尿病患者累积收缩压负荷与心血管事件风险的关系。方法:对百普乐和达美康缓释片对糖尿病和血管疾病的对照评估试验的观察性研究(action in diabetes and vascular disease preterax and diamicron MR controlled evaluation post trial observational study, ADVANCE-ON)中的2型糖尿病患者进行事后分析。Wang N Harris K Hamet P Harrap S Mancia G Poulter N Williams B Zoungas S Woodward M Chalmers J Rodgers A 刘青(译) 郑武洪(审校) 2022中华高血压杂志2022,30,12:2
12Outcomes of submucosal(T1b) esophageal adenocarcinomas removed by endoscopic mucosal resection显示文摘AIM To investigate the outcomes and recurrences of p T1 b esophageal adenocarcinoma(EAC) following endoscopic mucosal resection(EMR) and associated treatments.METHODS Patients undergoing EMR with pathologically confirmed T1 b EAC at two academic referral centers were retrospectively identified.Patients were divided into 4 groups based on treatment following EMR:Endoscopic therapy alone(group A),endoscopic therapy with either chemotherapy,radiation or both(group B),surgicalresection(group C) or no further treatment/lost to follow-up(<12 mo)(group D).Pathology specimens were reviewed by a central pathologist.Follow-up data was obtained from the academic centers,primary care physicians and/or referring physicians.Univariate analysis was performed to identify factors predicting recurrence of EAC.RESULTS Fifty-three patients with T1 b EAC underwent EMR,of which 32(60%) had adequate follow-up ≥ 12 mo(median 34 mo,range 12-103).There were 16 patients in group A,9 in group B,7 in group C and 21 in group D.Median follow-up in groups A to C was 34 mo(range 12-103).Recurrent EAC developed overall in 9 patients(28%) including 6(38%) in group A(median:21 mo,range:6-73),1(11%) in group B(median:30 mo,range:30-30) and 2(29%) in group C(median 21 mo,range:7-35.Six of 9 recurrences were local;of the 6 recurrences,5 were treated with endoscopy alone.No predictors of recurrence of EAC were identified.CONCLUSION Endoscopic therapy of T1 b EAC may be a reasonable strategy for a subset of patients including those either refusing or medically unfit for esophagectomy.Darren D Ballard Neel Choksi Jingmei Lin Eun-Young Choi B Joseph Elmunzer Henry Appelman Douglas K Rex Hala Fatima William Kessler John M DeWitt 2016World Journal of Gastrointestinal Endoscopy2016,8,20:2
13文化、不平等性与卫生服务提供显示文摘1动态不平等性对基层医疗卫生人力的影响 政治、社会、文化、专业群体皆建立在一致且常规的人类行为之上。当遭受巨大变革和内外压力时,这些群体会变得十分脆弱。尤其在动荡时期,这些群体往往更关注社会和文化的差异性,而非二者的一致性。尽管社会中的个体思维和行为会呈现较大的差异,但对健康的感知具有统一性,并在更广范围人群内尤为突出,这主要归因于文化价值观的作用。广义的文化心态会随着时间和地理位置的不同而不同,就像健康的社会决定因素也会因文化类型的不同而产生差异。Napier A D Ancarno C Butler B Calabrese J Chater A Chatterjee H Guesnet F Horne R Jacyna S Jadhav S Macdonald A Neuendorf U Parkhurst A Reynolds R Scambler G Shamdasani S Smith S Z Stougaard-Nielsen J Thomson L Tyler N Volkmann A M Walker T Watson J Williams A C Willott C Wilson J Woolf K 2016中国卫生政策研究2016,9,3:2
14Anticonvulsant activity of two metabotropic glutamate group I antagonists selective for the mGlu5 receptor:2 -methyl -6 -(phenylethynyl) -pyridine (MPEP),and (E)-6-methyl-2-styryl-pyridine (SIB 1893)显示文摘Chapman AG Nanan K Williams M 2000Neuropharmacology2000,39,9:1
15Dipole Shear Anisotropy Logging显示文摘Esmersoy C Koster K Williams M 1990Oil field Review1990,2,4:1
16Pravastatin has cholesterol lowering independent effects on the artery wall of atherosclerotic monkeys显示文摘Williams J K Sukhova G K Herrington D M 1998J Am Coll Cardiol1998,31,:1
17Comparison of parametric and nonparametric models for traffic flow forecasting 显示文摘Smith B L Williams B M Oswald R K 2002Transportation Research Part C : Emerging Technologies2002,10,4:1
18GTM: The generative topographic mapping显示文摘Bishop C M Svensen M Williams C K I 1998Neural Computation1998,10,1:1
19Do measures of body fat distribution provide information on the risk of type 2 diabetes in addition to measures of general obesity- Comparison of anthropometric predictors of type 2 diabetes in Indians显示文摘Tulloch-Reid M K Williams D E 2003Diabetes Care2003,26,9:1
20From proteins to Proteomes: large scale protein identification by two dimensional electorphoresis and amino acid analysis显示文摘Wilkins M R Williams K L AppelR D 1996Biotechnology1996,14,:1
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