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155篇 您的检索式:作者名="JOHN D Roberts"
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1Inpatient capsule endoscopy leads to frequent incomplete small bowel examinations显示文摘AIM:To examine the predictive factors of capsule endoscopy(CE) completion rate(CECR) including the effect of inpatient and outpatient status.METHODS:We identified 355 consecutive patients who completed CE at Rush University Medical Center between March 2003 and October 2005.Subjects for CE had either nothing by mouth or clear liquids for the afternoon and evening of the day before the procedure.CE exams were reviewed by two physicians who were unaware of the study hypotheses.After retrospective analysis,21 cases were excluded due to capsule malfunction,prior gastric surgery,endoscopic capsule placement or insufficient data.Of the remaining 334 exams [264 out-patient(OP),70 in-patient(IP)],CE indications,findings,location of the patients [IP vs OP and intensive care unit(ICU) vs general medical floor(GMF)] and gastrointestinal transit times were analyzed.Statistical analysis was completed using SPSS version 17(Chicago,IL).Chi-square,t test or fisher exact-tests were used as appropriate.Multivariate logistic regression analysis was used to identify variables associated with incomplete CE exams.RESULTS:The mean age for the entire study population was 54.7 years.Sixty-one percent of the study population was female,and gender was not different between IPs vs OPs(P = 0.07).The overall incomplete CECR was 14% in our study.Overt obscure gastrointestinal bleeding(OGB) was a significantly more common indication for the IP CE(P = 0.0001),while abdominal pain and assessment of IBD were more frequent indications for the OP CE exams(P = 0.002 and P = 0.01,respectively).Occult OGB was the most common indication and arteriovenous malformations were the most common finding both in the IPs and OPs.The capsule did not enter the small bowel(SB) in 6/70 IPs and 8/264 OPs(P = 0.04).The capsule never reached the cecum in 31.4%(22/70) of IP vs 9.5%(25/264) of OP examinations(P < 0.001).The mean gastric transit time(GTT) was delayed in IPs compared to OPs,98.5 ± 139.5 min vs 60.4 ± 92.6 min(P = 0.008).Minimal SB transit time was significantly prolonged in the IP compared to the OP setting [IP = 275.1 ±111.6 min vs OP = 244.0 ± 104.3 min(P = 0.037)].CECR was also significantly higher in the subgroup of patients with OGB who had OP vs IP exams(95% vs 80% respectively,P = 0.001).The proportion of patients with incomplete exams was higher in the ICU(n = 7/13,54%) as compared to the GMF(n = 15/57,26%)(P = 0.05).There was only a single permanent SB retention case which was secondary to a previously unknown SB stricture,and the remaining incomplete SB exams were due to slow transit.Medications which affect gastrointestinal system motility were tested both individually and also in aggregate in univariate analysis in hospitalized patients(ICU and GMF) and were not predictive of incomplete capsule passage(P > 0.05).Patient location(IP vs OP) and GTT were independent predictors of incomplete CE exams(P < 0.001 and P = 0.008,respectively).CONCLUSION:Incomplete CE is a multifactorial problem.Patient location and related factors such as severity of illness and sedentary status may contribute to incomplete exams.Cemal Yazici John Losurdo Michael D Brown Scott Oosterveen Robert Rahimi Ali Keshavarzian Leila Bozorgnia Ece Mutlu 2012World Journal of Gastroenterology2012,18,36:6
2Clinical outcomes following salvage Gamma Knife radiosurgery for recurrent glioblastoma显示文摘Glioblastoma multiforme(GBM) is the most common malignant primary brain tumor with a survival prognosis of 14-16 mo for the highest functioning patients. Despite aggressive, multimodal upfront therapies, the majority of GBMs will recur in approximately six months. Salvage therapy options for recurrent GBM(r GBM) are an area of intense research. This study compares recent survival and quality of life outcomes following Gamma Knife radiosurgery(GKRS) salvage therapy. Following a Pub Med search for studies usingGKRS as salvage therapy for malignant gliomas, nine articles from 2005 to July 2013 were identified which evaluated rG BM treatment. In this review, we compare overall survival following diagnosis, overall survival following salvage treatment, progression-free survival, time to recurrence, local tumor control, and adverse radiation effects. This report discusses results for rG BM patient populations alone, not for mixed populations with other tumor histology grades. All nine studies reported median overall survival rates(from diagnosis, range:16.7-33.2 mo; from salvage, range:9-17.9 mo). Three studies identified median progression-free survival(range:4.6-14.9 mo). Two showed median time to recurrence of GBM. Two discussed local tumor control. Six studies reported adverse radiation effects(range:0%-46% of patients). The greatest survival advantages were seen in patients who received GKRS salvage along with other treatments, like resection or bevacizumab, suggesting that appropriately tailored multimodal therapy should be considered with each rG BM patient. However, there needs to be a randomized clinical trial to test GKRS for rG BM before the possibility of selection bias can be dismissed.Erik W Larson Halloran E Peterson Wayne T Lamoreaux Alexander R MacKay Robert K Fairbanks Jason A Call Jonathan D Carlson Benjamin C Ling John J Demakas Barton S Cooke Christopher M Lee 2014World Journal of Clinical Oncology2014,5,2:5
3Peginterferon alfa-2b plus ribavirin compared with interferon alfa-2b plus ribavirin for initial treatment of chronic hepatitis C: a randomised trial显示文摘Michael P Manns John G McHutchison Stuart C Gordon Vinod K Rustgi Mitchell Shiffman Robert Reindollar Zachary D Goodman Kenneth Koury Mei-Hsiu Ling Janice K Albrecht 2001The Lancet2001,,9286:4
4Peginterferon alfa-2b plus ribavirin compared with interferon alfa-2b plus ribavirin for initial treatment of chronic hepatitis C: a randomised trial显示文摘Michael P Manns John G McHutchison Stuart C Gordon Vinod K Rustgi Mitchell Shiffman Robert Reindollar Zachary D Goodman Kenneth Koury Mei-Hsiu Ling Janice K Albrecht 2001The Lancet . 2001 (9286)2001,,9286:4
5ACC/AHA guidelines for the management of patients with unstable angina and non–st-segment elevation myocardial infarction显示文摘Eugene Braunwald Elliott M Antman John W Beasley Robert M Califf Melvin D Cheitlin Judith S Hochman Robert H Jones Dean Kereiakes Joel Kupersmith Thomas N Levin Carl J Pepine John W Schaeffer Earl E Smith David E Steward Pierre Theroux Raymond J Gibbons J 2000Journal of the American College of Cardiology2000,,3:4
6Peginterferon alfa-2b plus ribavirin compared with interferon alfa-2b plus ribavirin for initial treatment of chronic hepatitis C: a randomised trial显示文摘Michael P Manns John G McHutchison Stuart C Gordon Vinod K Rustgi Mitchell Shiffman Robert Reindollar Zachary D Goodman Kenneth Koury Mei-Hsiu Ling Janice K Albrecht 20012001 (9286)2001,,9286:4
7Quality in the technical performance of colonoscopy and the continuous quality improvement process for colonoscopy: recommendations of the U.S. Multi-Society Task Force on Colorectal Cancer显示文摘Douglas K Rex John H Bond Sidney Winawer Theodore R Levin Randall W Burt David A Johnson Lynne M Kirk Scott Litlin David A Lieberman Jerome D Waye James Church John B Marshall Robert H Riddell 2002The American Journal of Gastroenterology2002,,6:3
8Malrotation: Current strategies navigating the radiologic diagnosis of a surgical emergency显示文摘The most accurate and practical imaging algorithm for the diagnosis of intestinal malrotation can be a complex and sometimes controversial topic.Since 1900,sig-nificant advances have been made in the radiographic assessment of infants and children suspected to have anomalies of intestinal rotation.We describe the cur-rent methods of abdominal imaging of malrotation along with their pros and cons.When associated with volvulus,malrotation is a true surgical emergency re-quiring rapid diagnosis and treatment.We emphasize the importance of close cooperation and communica-tion between radiology and surgery to perform an effective and efficient diagnostic evaluation allowing prompt surgical decision making.John J Tackett Eleanor D Muise Robert A Cowles 2014World Journal of Radiology2014,6,9:3
9澳大利亚初级保健诊所新发腰背痛患者的预后:起始队列研究显示文摘目的估计初级保健诊所内新发腰背痛患者的1年预后,并确定其预后因素。设计1年随访队列研究。地点澳大利亚悉尼的初级保健诊所。参试者初级保健诊所接诊的973例非特异性腰背痛连续患者(平均年龄43.3岁,男性54.8%)。该起始队列患者腰背痛时间不足两周,征集自170名全科医生、理疗师或按摩师诊所。主要评估指标参试者完成基线调查问卷后,分别于初次就诊后6周、3个月和21个月时复查评估。评估内容包括:工作恢复情况、功能恢复情况和疼痛消失情况。潜在预后因素与恢复所需时间的关联性用Cox回归建模分析。结果12个月随访率〉97%。基线时工作能力下降的患者半数在14天内恢复了以前的工作状态(95%可信区间11-17天),83%在3个月内恢复。残疾(中位恢复时间31天,25-37天)和疼痛(中位58天,52-63天)则需要较长的时间才能恢复。只有72%的受试者于基线访问后12个月获得完全康复。高龄、赔偿诉讼、疼痛较重、就诊前腰背痛时间较长、就诊前因疼痛活动减少天数较多、抑郁情绪以及预期危险持续与所需恢复时问较长相关。结论在这个急性腰背痛初级保健患者队列,患者的预后并不像临床指南声称的那样乐观。多数患者的恢复缓慢。近三分之一的患者在腰背痛发作后1年尚未恢复。Nicholas Henschke Christopher G Maher Kathryn M Refshauge Robert D Herbert Robert G Cumming Jane Bleasel John York Anurina Das James H McAuley 蓝恭涛(译) 2008英国医学杂志中文版2008,11,6:2
10Hepatitis B and C infection and liver disease trends among human immunodeficiency virus-infected individuals显示文摘AIM:To examine trends in and correlates of liver disease and viral hepatitis in an human immunodeficiency virus (HIV)-infected cohort. METHODS:The multi-site adult/adolescent spectrum of HIV-related diseases (ASD) followed 29 490 HIVinfected individuals receiving medical care in 11 U.S. metropolitan areas for an average of 2.4 years,and a total of 69 487 person-years,between 1998 and 2004. ASD collected data on the presentation,treatment,and outcomes of HIV,including liver disease,hepatitis screening,and hepatitis diagnoses. RESULTS:Incident liver disease,chronic hepatitis B virus (HBV),and hepatitis C virus (HCV) were diagnosed in 0.9,1.8,and 4.7 per 100 person-years. HBV and HCV screening increased from fewer than 20% to over 60% during this period of observation (P < 0.001). Deaths occurred in 57% of those diagnosed with liver disease relative to 15% overall (P < 0.001). Overall 10% of deaths occurred among individuals with a diagnosis of liver disease. Despite care guidelines promoting screening and vaccination for HBV and screening for HCV,screening and vaccination were not universally conducted or,if conducted,not documented. CONCLUSION:Due to high rates of incident liver disease,viral hepatitis screening,vaccination,and treatment among HIV-infected individuals should be a priority.Susan E Buskin Elizabeth A Barash John D Scott David M Aboulafia Robert W Wood 2011World Journal of Gastroenterology2011,17,14:2
11Efficacy of azacitidine compared with that of conventional care regimens in the treatment of higher-risk myelodysplastic syndromes: a randomised, open-label, phase III study显示文摘Pierre Fenaux Ghulam J Mufti Eva Hellstrom-Lindberg Valeria Santini Carlo Finelli Aristoteles Giagounidis Robert Schoch Norbert Gattermann Guillermo Sanz Alan List Steven D Gore John F Seymour John M Bennett John Byrd Jay Backstrom Linda Zimmerman David M 2009Lancet Oncology2009,,:2
12THE PREDICTIVE VALUE OF DONOR LIVER BIOPSIES FOR THE DEVELOPMENT OF PRIMARY NONFUNCTION AFTER ORTHOTOPIC LIVER TRANSPLANTATION显示文摘ANTHONY M. D?ALESSANDRO MUNCI KALAYOGLU HANS W. SOLLINGER ROBERT M. HOFFMANN ALAN REED STUART J. KNECHTLE JOHN D. PIRSCH GHOLAM R. HAFEZ DAVID LORENTZEN FOLKERT O. BELZER 1991Transplantation1991,,1:2
13Solid propulsion for space applications: An updated roadmap显示文摘Jean-Francois Guery I-Shih Chang Toru Shimada Marilyn Glick Didier Boury Eric Robert John Napior Robert Wardle Christian Pérut Max Calabro Robert Glick Hiroto Habu Nobuhiro Sekino Gilles Vigier Bruno d’Andrea 2009Acta Astronautica2009,,1:2
14Determining optimal road class and road deactivation strategies using dynamic programming 显示文摘Axel E John D Robert G D 2006Canadian Journal of Forest Research2006,36,6:1
15Changes in stoichiometric Si, N and P ratios of Mississippi River water diverted through coastal wetlands to the Gulf of Mexico 显示文摘Robert R L John W D Dubravko J 2004Estuarine Coastal and Shelf Science2004,60,1:1
16Multi-objective hyper- sonic entry aeroshell shape optimization 显示文摘Theisinger John E Braun Robert D 2009Journal of Spacecraft and Rockets2009,46,5:1
17Liquefaction of Autographa californica Nucleopolyhedrovirus-Infected Insects Is Dependent on the Integrity of Virus-Encoded Chitinase and Cathepsin Genes显示文摘Rachael E Hawtin Tamara Zarkowska Kevin Arnold Carole J Thomas Graham W Gooday Linda A King John A Kuzio Robert D Possee 1997Virology1997,,:1
18Multi-Objective Hypersonic Entry Aeroshell Shape Optimization显示文摘John E T Robert D B 2009Journal of Spacecraft and Rockets2009,46,5:1
19Matching Electronic Distribution Channels to Product Characteristics: The Role of Congruence in Consideration Set Formation显示文摘Pamela D Morrison John H Roberts 1998Journal of Business Research1998,,3:1
20Reporting Standards for Endovascular Treatment of Lower Extremity Deep Vein Thrombosis显示文摘Suresh Vedantham Clement J. Grassi Hector Ferral Nilesh H. Patel Patricia E. Thorpe Vittorio P. Antonacci Bertrand M. Janne d’Othée Lawrence V. Hofmann John F. Cardella Sanjoy Kundu Curtis A. Lewis Marc S. Schwartzberg Robert J. Min David Sacks 2009Journal of Vascular and Interventional Radiology2009,,7:1
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