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Analysis of Endoscopic Sphenopalatine Artery Surgery for Refractory Epistaxis

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International Journal of Otolaryngology and Head & Neck Surgery 2020年第2期9卷 78-85页

作者： Takahiro Kitamura Yukinori Takenaka Kengo Aoki Takuma Shimada Hiroko Hamaguchi Ayaka Nakatani Masayuki Nozawa ryohei oya Yoshifumi Yamamoto Atsuhiko Uno Department of Otorhinolaryngology-Head and Neck Surgery Osaka General Medical CenterOsakaJapan

Background: This study aimed to determine the safety and efficacy of sphenopalatine artery (SPA) surgery in patients with refractory epistaxis and to identify factors associated with the indications for surgery to assist clinicians in making prompt and appropriate decisions regarding SPA surgery for refractory epistaxis. Methods: We analyzed 97 consecutive patients with nasal bleeding hospitalized in our institution between April 2009 and March 2018. Clinicopathological characteristics and clinical outcomes were analyzed from retrospective chart reviews. Results: Of the 97 patients, 28 (29 sides) required SPA surgery. There were no differences in sex, anti-coagulant drug or antiplatelet use, hemoglobin concentration, or platelet count between Group A (patients who required surgery) and Group B (patients who did not require surgery). Age (58 vs. 67 years, p = 0.038) and severity of comorbidity (0 vs. 1, p = 0.039) were significantly lower in the surgery group. Patients who were younger and had lower Charlson Comorbidity Index (CCI) scores had more requirements for surgery than those who were older and had higher CCI scores. There was no significant difference between the groups with respect to the proportion of patients receiving blood transfusions;however, the length of hospitalization was significantly longer in Group A than in Group B (8.9 vs. 8 days, p = 0.038). Success rate (non-rebleeding rate) was 89%, comparable to that reported in previous studies. Conclusions: Endoscopic SPA surgery was found safe and effective method with few complications. Younger patients with lower CCI scores were found appropriate for SPA surgery for refractory epistaxis due in part to a lower risk of anesthesia.

关键词： Epistaxis Sphenopalatine Artery Emergency Admission Cauterization Ligation Endoscope

Impact of Medicaid expansion on kidney transplantation in the State Oklahoma

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World Journal of Transplantation 2024年第3期14卷 110-119页

作者： Hyoshin Kwon Zoya Sandhu Zoona Sarwar oya M Andacoglu Department of Surgery Division of TransplantationOu College of MedicineOK 73104United States Department of Internal Medicine University of OklahomaTulsa School of Community MedicineTulsaOK 74135United States Department of Surgery University of Oklahoma College of MedicineOklahomaOK 73104United States Department of Transplantation and Advanced Hepatobiliary Surgery University of UtahSalt LakeUT 84112United States

BACKGROUND There is no data evaluating the impact of Medicaid expansion on kidney tran-splants(KT)in *** To investigate the impact of Medicaid expansion on KT patients in *** The UNOS database was utilized to evaluate data pertaining to adult KT reci-pients in Oklahoma in the pre-and post-Medicaid *** analysis,Kaplan Meier analysis was used to estimate,and cox proportional models were *** There were 2758 pre-and 141 recipients in the post-Medicaid expansion ***-expansion patients were more often non-United States citizens(2.3%vs 5.7%),American Indian,Alaskan,or Pacific Islander(7.8%vs 9.2%),Hispanic(7.4%vs 12.8%),or Asian(2.5%vs 8.5%)(P<0.0001).Waitlist time was shorter in the post-expansion era(410 vs 253 d)(P=0.0011).Living donor rates,pre-emptive transplants,re-do transplants,delayed graft function rates,kidney donor profile index values,panel reactive antibodies levels,and insurance types were *** with public insurance were more *** increased early(<6 months)rejection rates,1-year patient and graft survival were *** Cox proportional hazards model,male sex,American Indian,Alaskan or Pacific Islander race,public insurance,and frailty category were independent risk factors for death at 1 *** expansion was not associated with graft failure or patient survival(adjusted hazard ratio:1.07;95%CI:0.26-4.41).CONCLUSION Medicaid expansion in Oklahoma is associated with increased KT access for non-White/non-Black and non-United States citizen patients with shorter wait times.1-year graft and patient survival rates were similar before and after *** expansion itself was not independently associated with graft or patient survival *** research is necessary to determine the long-term effects of Medicaid expansion.

关键词： Medicaid expansion Oklahoma Kidney transplant

Impact of sex on the outcomes of deceased donor liver transplantation

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World Journal of Transplantation 2024年第1期14卷 120-129页

作者： oya M Andacoglu Isabel S Dennahy Nicole C Mountz Luisa Wilschrey Arzu Oezcelik Division of Transplantation and Advanced Hepatobiliary Surgery University of UtahSalt Lake CityUT 84112United States Department of Surgery University of EssenEssen D-45122Germany Department of Surgery The University of Oklahoma Health Sciences CenterOklahoma CityOK 73117United States Department of Surgery University of Oklahoma College of MedicineOklahoma CityOK 73117United States

BACKGROUND Data examining the impact of sex on liver transplant(LT)outcomes are *** is clear that further research into sex-related differences in transplant patients is necessary to identify areas for *** of these differences may help to identify specific areas of focus to improve on the organ matching process,as well as the peri-and post-operative care of these *** To utilize data from a high-volume Eurotransplant center to compare characteristics of male and female patients undergoing liver transplant and assess association between sex-specific variables with short-and long-term post-transplant *** A retrospective review of the University of Essen’s transplant database was performed with collection of baseline patient characteristics,transplant-related data,and short-term *** of these data were made with Shapiro-Wilk,Mann-Whitney U,χ2 and Bonferroni tests applied where appropriate.A P value of<0.05 was accepted as statistically *** Of the total 779 LT recipients,261(33.5%)were *** patients suffered higher incidences of acute liver failure and lower incidences of alcohol-related or viremic liver disease(P=0.001).Female patients were more likely to have received an organ from a female donor with a higher donor risk index score,and as a high urgency offer(all P<0.05).Baseline characteristics of male and female recipients were also significantly *** multivariate hazard regression analysis,recipient lab-Model for End-Stage Liver Disease score and donor cause of death were associated with long-term outcomes in ***-operative diagnosis of hepatocellular carcinoma,age at time of listing,duration of surgery,and units transfused during surgery,were associated with long-term outcomes in *** of complications was associated with long-term outcomes in both *** survival was similar in both males and females;however,when stratified by age,females<50 y

关键词： Liver transplant Outcomes Survival Peri-and post-operative care

A Comparison Study of Moving Object Index Structures

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Journal of Computer Science & Technology 2009年第6期24卷 1098-1108页

作者： Utku Kalay oya Kalipsiz Computer Engineering Department Yildiz Technical University

The task of selecting the most appropriate method for indexing the data according to application requires a careful comparison study of indices of interests. In particular, we consider object movements by tracing their trajectories within a predefined road network. MV3DR-tree and 3DR-tree constitute our first group indexing the objects moving in free movement scenarios. Besides, Mapping and MON-tree are the second group indexing the locations of objects moving over a network of road. Those access methods mainly organize a group of R-tree in order to index the underlying road network and the object movements. Our goal in this study is to evaluate existing proposals under fair circumstances with respect to storage consumption and spatio-temporal query execution performance. In our comparisons, we discuss the structure＇s sensibility to query＇s spatial and/or temporal extent as well as the tradeoff arising between two groups in terms of reliability and disk access performance. We believe that revealing the vulnerabilities of the selected structures, especially Mapping and MON-tree motivates us to design more robust organizations.

关键词： access methods query processing spatial databases temporal databases

Prevention of Helicobacter pylori infection in childhood

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World Journal of Gastroenterology 2014年第30期20卷 10348-10354页

作者： oya Yucel Pediatric Department Istanbul Health Education and Research HospitalBaskent University34662 IstanbulTurkey

Helicobacter pylori(***)infection is one of the most common infections *** infection rates are falling in the developed and developing countries,*** is still widespread in the *** article has reviewed the important publications on *** in childhood with a focus on its evolving transmission route and the source of infection and preventive strategies in childhood,PubMed was searched up to identify eligible *** publications were searched using the following.

关键词： Children Growth retardation Helicobacter pylori Iron deficiency Prevalence Prevention Transmission

Optical coherence tomography angiography of the peripapillary region and macula in normal,primary open angle glaucoma,pseudoexfoliation glaucoma and ocular hypertension eyes

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International Journal of Ophthalmology(English edition) 2020年第5期13卷 744-754页

作者： Helin Ceren Kose oya Tekeli Department of Ophthalmology Ankara University Faculty of MedicineAnkara 06620Turkey

AIM:To evaluate and compare the peripapillary and retinal vasculature changes in primary open angle glaucoma(POAG),pseudoexfoliation glaucoma(PXG),ocular hypertension(OHT)and normal eyes using optical coherence tomography angiography(OCTA).METHODS:A total of 114 POAG,PXG and OHT eyes of 60 patients and 46 eyes of 23 healthy control participants with good quality OCTA images were *** PXG,POAG,OHT,and control groups(aged 68.17±6.30 y,61.11±10.26 y,58.1±8.9 y,and 56.9±4.6 y,respectively)contained of 46,36,32,and 46 eyes,*** of vessel density(VD)in the peripapillary region and macula,average retinal inner thickness,and retinal nerve fiber layer thickness(RNFLT)were compared among *** order to test the accuracy of differentiation between eyes with and without glaucoma,the area was calculated under the receiver operating characteristic(ROC)***:The VD in glaucomatous eyes was significantly lower than the control group in all peripapillary sectors(44.35%±6.78%vs 50.47%±1.83%,P<0.001),the superficial(44.08%±5.46%vs 51.28%±2.85%,P<0.001)and the deep(45.13%±8.55%vs 54.20%±5.44%,P<0.001)vascular *** was a significant difference in peripapillary VD between glaucomatous and OHT eyes(44.35%±6.78%vs 49.86%±2.45%,P<0.001).The OHT group featured a lower superficial(48.06%±4.32%vs 51.28%±2.85%,P=0.027)and deep plexus(48.70%±5.99%vs 54.20%±5.44%,P=0.013)whole image vessel density(wiVD)than did the control *** average macular superficial plexus wiVD was significantly lower in eyes with PXG than in eyes with POAG(42.22%±5.36%vs 46.54%±5.56%,P=0.046).CONCLUSION:OCTA can measure reduced peripapillary and macular VD in eyes with glaucoma and OHT,and these results are correlated to functional and structural glaucomatous *** and macular superficial plexus VD is lower in eyes with PXG than in eyes with ***,the OHT eyes demonstrate impaired macular vasculature in both superficial and deep plexus.

关键词： glaucoma optical coherence tomography angiography vessel density ocular hyper tension pseudoexfoliation glaucoma

A novel use of TiO_2 fiber for photocatalytic ozonation of 2,4-dichlorophenoxyacetic acid in aqueous solution

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Journal of Environmental Sciences 2008年第9期20卷 1138-1145页

作者： GIRI Rabindra Raj OZAKI Hiroaki TAKANAMI ryohei TANIGUCHI Shogo New Industrial R & D Center Osaka Sangyo University Department of Civil Engineering Osaka Sangyo University

More efficient oxidation methods are needed to degrade especially newly emerging recalcitrant organic contaminants at low concentrations in the water environment. Reduced photonic efficiency of immobilized TiO2 is a major challenge in TiO2-assisted advanced oxidation processes (AOP). Mineralization of 2,4-dichllorophenoxyacetic acid (2,4-D) in low aqueous solution by O3/UV/TiO2 using the world’s first high-strength TiO2 fiber was investigated and compared with O3, UV/TiO2, and O3/TiO2 in laboratory batch ex...

关键词： dechlorination degradation intermediates radicals TiO2 total organic carbon (TOC)

Real-time hybrid simulation of structures equipped with viscoelastic-plastic dampers using a user-programmable computational platform

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Earthquake Engineering and Engineering Vibration 2017年第4期16卷 693-711页

作者： Jack Wen Wei Guo Ali Ashasi-Sorkhabi oya Mercan Constantin Christopoulos Kinetica 1235 Bay St.Suite 1004ONM5R 3K4 Department of Civil Engineering University of Waterloo200 University Avenue WWaterlooONN2L 3G1Canada Department of Civil Engineering University of Toronto35 St.George StreetTorontoONM5S 1A4Canada

A user-programmable computational/control platform was developed at the University of Toronto that offers real-time hybrid simulation （RTHS） capabilities. The platform was verified previously using several linear physical substructures. The study presented in this paper is focused on further validating the RTHS platform using a nonlinear viscoelastic-plastic damper that has displacement, frequency and temperature-dependent properties. The validation study includes damper component characterization tests, as well as RTHS of a series of single-degree-of-freedom （SDOF） systems equipped with viscoelastic-plastic dampers that represent different structural designs. From the component characterization tests, it was found that for a wide range of excitation frequencies and friction slip loads, the tracking errors are comparable to the errors in RTHS of linear spring systems. The hybrid SDOF results are compared to an independently validated thermal- mechanical viscoelastic model to further validate the ability for the platform to test nonlinear systems. After the validation, as an application study, nonlinear SDOF hybrid tests were used to develop performance spectra to predict the response of structures equipped with damping systems that are more challenging to model analytically. The use of the experimental performance spectra is illustrated by comparing the predicted response to the hybrid test response of 2DOF systems equipped with viscoelastic-plastic dampers.

关键词： real-time hybrid simulation user-programmable computational/control platform supplemental dampers performance spectra

Optic disc area in different types of glaucoma

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International Journal of Ophthalmology(English edition) 2016年第8期9卷 1134-1137页

作者： oya Tekeli Esra Savku Ahmed Abdullayev Department of Ophthalmology Faculty of Medicine Ankara University Department of Ophthalmology Islahiye State Hospital

AIMTo evaluate the possible relationship of optic disc area with retina nerve fiber layer in different glaucoma *** eye each was chosen from 45 patients with ocular hypertension, 45 patients with primary open angle glaucoma, 45 patients with pseudoexfoliation glaucoma and 45 healthy controls followed in our hospital. The records of the patients were reviewed retrospectively. Optic disc area and circumpapillary retina nerve fiber layer measurements were obtained using optical coherence tomography. Central corneal thickness was measured by ultrasound *** median disc area in the patients with primary open angle glaucoma was significantly higher than the patients with ocular hypertension (2.19 vs 1.90 mm2, P=0.030). The median retina nerve fiber layer was thinner in the patients with primary open angle glaucoma and pseudoexfoliation glaucoma than the patients with ocular hypertension for superior, inferior and temporal quadrants. After adjustment for age, no difference in central corneal thickness was found between the groups. Greater disc area was associated with thicker retinal nerve fiber layer for superior, inferior and nasal quadrants in the patients with primary open angle glaucoma. There was no correlation between disc area and central corneal thickness measurements of the *** size affects the retinal nerve fiber layer thickness in eyes with primary open angle glaucoma and is a possible risk factor for glaucomatous optic nerve damage.

关键词： central corneal thickness ocular hypertension optic disc area primary open angle glaucoma pseudoexfoliation glaucoma retina nerve fiber layer