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| 1 | Upper-gastrointestinal bleeding secondary to peptic ulcer disease:Incidence and outcomes显示文摘AIM:To evaluate the incidence,surgery,mortality,and readmission of upper gastrointestinal bleeding(UGIB)secondary to peptic ulcer disease(PUD).METHODS:Administrative databases identified all hospitalizations for UGIB secondary to PUD in Alberta,Canada from 2004 to 2010(n=7079)using the International Classification of Diseases Codes(ICD-10).A subset of the data was validated using endoscopy reports.Positive predictive value and sensitivity with 95%confidence intervals(CI)were calculated.Incidence of UGIB secondary to PUD was calculated.Logistic regression was used to evaluate surgery,in-hospital mortality,and 30-d readmission to hospital with recurrent UGIB secondary to PUD.Co-variants accounted for in our logistic regression model included:age,sex,area of residence(i.e.,urban vs rural),number of Charlson comorbidities,presence of perforated PUD,undergoing upper endoscopy,year of admission,and interventional radiological attempt at controlling bleeding.A subgroup analysis(n=6356)compared outcomes of patients with gastric ulcers to those with duodenal ulcers.Adjusted estimates are presented as odds ratios(OR)with95%CI.RESULTS:The positive predictive value and sensitivity of ICD-10 coding for UGIB secondary to PUD were85.2%(95%CI:80.2%-90.2%)and 77.1%(95%CI:69.1%-85.2%),respectively.The annual incidence between 2004 and 2010 ranged from 35.4 to 41.2 per100000.Overall risk of surgery,in-hospital mortality,and 30-d readmission to hospital for UGIB secondary to PUD were 4.3%,8.5%,and 4.7%,respectively.Interventional radiology to control bleeding was performed in 0.6%of patients and 76%of these patients avoided surgical intervention.Thirty-day readmission significantly increased from 3.1%in 2004 to 5.2%in 2010(OR=1.07;95%CI:1.01-1.14).Rural residents(OR rural vs urban:2.35;95%CI:1.83-3.01)and older individuals(OR≥65 vs<65:1.57;95%CI:1.21-2.04)were at higher odds of being readmitted to hospital.Patients with duodenal ulcers had higher odds of dying(OR=1.27;95%CI:1.05-1.53),requiring surgery(OR=1.73;95%CI:1.34-2.23),and being readmitted to hospital(OR=1.54;95%CI:1.19-1.99)when compared to gastric ulcers.CONCLUSION:UGIB secondary to PUD,particularly duodenal ulcers,was associated with significant morbidity and mortality.Early readmissions increased over time and occurred more commonly in rural areas. | Samuel Quan Alexandra Frolkis Kaylee Milne Natalie Molodecky Hong Yang Elijah Dixon Chad G Ball Robert P Myers Subrata Ghosh Robert Hilsden Sander Veldhuyzen van Zanten Gilaad G Kaplan | 2014 | World Journal of Gastroenterology2014，20，46： | 21 |
| 2 | Evaluation of the updated definition of early allograft dysfunction in donation after brain death and donation after cardiac death liver allografts显示文摘BACKGROUND:An updated definition of early allograft dysfunction(EAD) was recently validated in a multicenter study of 300 deceased donor liver transplant recipients.This analysis did not differentiate between donation after brain death(DBD) and donation after cardiac death(DCD) allograft recipients.METHODS:We reviewed our prospectively entered database for all DBD(n=377) and DCD(n=38) liver transplantations between January 1,2006 and October 30,2011.The incidence of EAD as well as its ability to predict graft failure and survival was compared between DBD and DCD groups.RESULTS:EAD was a valid predictor of both graft and patient survival at six months in DBD allograft recipients,but in DCD allograft recipients there was no significant difference in the rate of graft failure in those with EAD(11.5%) compared with those without EAD(16.7%)(P=0.664) or in the rate of death in recipients with EAD(3.8%) compared with those without EAD(8.3%)(P=0.565).The graft failure rate in the first 6 months in those with international normalized ratio ≥1.6 on day 7 who received a DCD allograft was 37.5% compared with 6.7% for those with international normalized ratio <1.6 on day 7(P=0.022).CONCLUSIONS:The recently validated definition of EAD is a valid predictor of patient and graft survival in recipients of DBD allografts.On initial assessment,it does not appear to be a useful predictor of patient and graft survival in recipients of DCD allografts,however a study with a larger sample size of DCD allografts is needed to confirm these findings.The high ALT/AST levels in most recipients of DCD livers as well as the predisposition to biliary complications and early cholestasis make these parameters as poor predictors of graft failure.An alternative definition of EAD that gives greater weight to the INR on day 7 may be more relevant in this population. | Kris P Croome William Wall Douglas Quan Sai Vangala Vivian McAlister Paul Marotta Roberto Hernandez-Alejandro | 2012 | Hepatobiliary & Pancreatic Diseases International2012，11，4： | 15 |
| 3 | Duodenal gangliocytic paraganglioma with lymph node metastases: a case report and comparative review of 31 cases显示文摘Gangliocytic paraganglioma(GP) is a rare tumor of uncertain origin most often located in the second portion of the duodenum. It is composed of three cellular components: Epithelioid endocrine cells, spindlelike/sustentacular cells, and ganglion-like cells. While this tumor most often behaves in a benign manner, cases with metastasis are reported. We describe the case of a 62-year-old male with a periampullary GP with metastases to two regional lymph nodes who was successfully treated with pancreaticoduodenectomy. Using Pub Med, EMBASE, EBSCOhost MEDLINE and CINAHL, and Google Scholar, we searched the literature for cases of GP with regional lymph node metastasis and evaluated the varying presentations, diagnostic workup, and disease management of identified cases. Thirty-one cases of GP with metastasis were compiled(30 with at least lymph node metastases and one with only distant metastasis to bone), with age at diagnosis ranging from 16 to 74 years. Ratio of males to females was 19:12. The most common presenting symptoms were abdominal pain(55%) and gastrointestinal bleeding or sequelae(42%). Twenty-five patients underwent pancreaticoduodenectomy. Five patients were treated with local resection alone. One patient died secondary to metastatic disease, and one died secondary to perioperative decompensation. The remainder did well, with no evidence of disease at follow-up from the most recent procedure(except two in which residual disease was deliberately left behind). Of the 26 cases with sufficient histological description, 16 described a primary tumor that infiltrated deep to the submucosa, and 3 described lymphovascular invasion. Of the specific immunohistochemistry staining patterns studied, synaptophysin(SYN) stained all epithelioid endocrine cells(18/18). Neuron specific enolase(NSE) and SYN stained most ganglion-like cells(7/8 and 13/18 respectively), and S-100 stained all spindle-like/sustentacular cells(21/21). Our literature review of published cases of GP with lymph node metastasis underscores the excellent prognosis of GP regardless of specific treatment modality. We question the necessity of aggressive surgical intervention in select patients, and argue that local resection of the mass and metastasis may be adequate. We also emphasize the importance of pre-surgical assessment with imaging studies, as well as post-surgical follow-up surveillance for disease recurrence. | Sahara J Cathcart Aaron R Sasson Jessica A Kozel Jennifer M Oliveto Quan P Ly | 2017 | World Journal of Clinical Cases2017，5，6： | 9 |
| 4 | A comparison of survival and pathologic features of non-alcoholic steatohepatitis and hepatitis C virus patients with hepatocellular carcinoma显示文摘AIM:To compare the clinical outcome and pathologic features of non-alcoholic steatohepatitis(NASH) patients with hepatocellular carcinoma(HCC) and hepatitic C virus(HCV) patients with HCC(another group in which HCC is commonly seen) undergoing liver transplantation.METHODS:Patients transplanted for HCV and NASH at our institution from January 2000 to April 2011 were analyzed.All explanted liver histology and pre-transplant liver biopsies were examined by two specialist liver histopathologists.Patient demographics,disease free survival,explant liver characteristics and HCC features(tumour number,cumulative tumour size,vascular invasion and differentiation) were compared between HCV and NASH liver transplant recipients.RESULTS:A total of 102 patients with NASH and 283 patients with HCV were transplanted.The incidence of HCC in NASH transplant recipients was 16.7%(17/102).The incidence of HCC in HCV transplant recipients was 22.6%(64/283).Patients with NASH-HCC were statistically older than HCV-HCC patients(P < 0.001).A significantly higher proportion of HCV-HCC patients had vascular invasion(23.4% vs 6.4%,P = 0.002) and poorly differentiated HCC(4.7% vs 0%,P < 0.001) compared to the NASH-HCC group.A trend of poorer recurrence free survival at 5 years was seen in HCV-HCC patients compared to NASH-HCC who underwent a Liver transplantation(P = 0.11).CONCLUSION:Patients transplanted for NASH-HCC appear to have less aggressive tumour features compared to those with HCV-HCC,which likely in part accounts for their improved recurrence free survival. | Roberto Hernandez-Alejandro Kris P Croome Martin Drage Nathalie Sela Jeremy Parfitt Natasha Chandok Paul Marotta Cheryl Dale William Wall Douglas Quan | 2012 | World Journal of Gastroenterology2012，18，31： | 5 |
| 5 | Management Strategies and Research Orientations of Forest Diseases and Pests in China显示文摘Forest diseases and pests are perceived as a growing hazard to China economy. It is a common conclusion that the actualities of forest pests in china are no effective measures to the old important pests, some secondary pests are ascending to chief pests, increasing devastation from exotic pests, frequent ecological pest eruption induced by environmental detriment and host-leading diseases to threaten the 'Western Development Project 'in China, which is the most important economical strategy to China; th... | ZHANG Xingyao LIANG Jun LU Quan YAN Donghui LUO Youqing XU Zhichun WEN Junbao1. Research Institute of Forest Ecology. Environment and Protection. Chinese Academy of Forestry. Beijing, 100091. P R China:2. College of Biological Sciences and Technology. Beiiine Forestry University. Beiiine. 100083. P R China | 2002 | Chinese Forestry Science and Technology2002，1，2： | 4 |
| 6 | Two-Year Outcomes of the Ranibizumab for Edema of the mAcula in Diabetes (READ-2) Study显示文摘 | Quan Dong Nguyen Syed Mahmood Shah Afsheen A. Khwaja Roomasa Channa Elham Hatef Diana V. Do David Boyer Jeffery S. Heier Prema Abraham Allen B. Thach Eugene S. Lit Bradley S. Foster Erik Kruger Pravin Dugel Thomas Chang Arup Das Thomas A. Ciulla John S. P | 2010 | Ophthalmology2010，，11： | 2 |
| 7 | Bioactive, luminescent and mesoporous europium-doped hydroxyapatite as a drug cartier显示文摘 | YANG P QUAN Z LI C | 2008 | Biomater2008，29，： | 1 |
| 8 | 查看详情显示文摘 | Quan H T Song Z Liu X F Zanardi P Sun C P | | 0，，： | 1 |
| 9 | ACORGA ZNX50- a new selective reagent for the solvent extraction ofzinc from chloride leach solutions显示文摘 | Dalton R F Burgess A Quan P M | 1992 | Hydrometallurgy1992，30，13： | 1 |
| 10 | Microbial degradation of quinQline by immobilized cells of Burkholderia pickettii 显示文摘 | Wang J L Quan X C Han L P | 2002 | Water Res2002，36，9： | 1 |
| 11 | Modification of polysulfide sealant with polysulfide poly-thio-urethane-urea显示文摘 | Quan Y W He P Zhou B J | 2007 | Journal of Applied Polymer Science2007，106，4： | 1 |
| 12 | A characterization for the dynamic recrystallization kinetics of as-extruded 7075 aluminum alloy based on true stress-strain curves显示文摘 | G Z Quan Y P Mao G S Li | | 0，，： | 1 |
| 13 | Shape controllable synthesis and upconversion properties of NaYbF4/ NaYbF4 : Er> and YbF:/YbF : Er+ microstructures 显示文摘 | Li C X Quan Z W Yang P P | 2008 | J MaterChem2008，，18： | 1 |
| 14 | Preparation of stable nitrendipine nanosuspensions using the precipitation-uhrasonication method for enhancement of dissolution and oral bioavailability 显示文摘 | Xia DN Quan P Piao HZ | 2010 | Eur J Pharm Sci2010，40，4： | 1 |
| 15 | Preparation of stable nitrendipine nanosuspensions using the precipitation-ultrasonication method for enhancement of dissolution and oral bioavailability 显示文摘 | Xia D Quan P Piao H | 2010 | Eur J Pharm Sci2010，40，4： | 1 |
| 16 | Ki-ras Mutation and p53 overexpression predict the clinical behavior of colorectal cancer:A southwest oncology group study显示文摘 | Ahnen DJ Feigl P Quan G | 1998 | Cancer Res1998，58，6： | 1 |
| 17 | Characterizing the HER2/neu status and metastatic potential of breast cancerstem/ progenitor ceils 显示文摘 | Pommier S J Quan G G Christante D Muller P New- ell A E Olson S B | 2010 | Ann Surg Oneol2010，17，： | 1 |
| 18 | Diversity of ammonium-oxidizing bacteria in a granular sludge anaerobic ammonium-oxidizing (anammox) reactor显示文摘 | Quan Z X P hee S K Zuo J E | | 0，，11： | 1 |
| 19 | Pressure acid leaching of arid-region nickel laterite ore Part Ⅱ: Effect of oretype显示文摘 | Whittington B I Johnson J A Quan L P | | Hydrometallurgy0，70，： | 1 |
| 20 | Synthesis and characterization o显示文摘 | QUAN Z W WANG Z M YANG P P | 2007 | Inor- ganic Chemistry2007，46，4： | 1 |
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