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A gastrointestinal stromal tumor of the third portion of the duodenum treated by wedge resection: A case report

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World Journal of Gastrointestinal surgery 2013年第12期5卷 332-336页

作者： Fahrettin acar Mustafa sahin serdar Ugras Akin Calisir Department of General surgery Faculty of Medicine Selcuk University Konya Department of Pathology Faculty of Medicine Selcuk University Konya

A 65-year old woman was admitted to our hospital with abdominal pain. Computed tomography showed a tumor measuring about 3 cm in diameter with no metastatic lesion or signs of local infiltration. Gastroduodenal endoscopy revealed the presence of a submucosal tumor in the third portion of the duodenum and biopsy revealed tumor cells stained positive for c-kit. These findings were consistent with gastrointestinal stromal tumors(GIsTs) and we performed a wedge resection of the duodenum, sparing the pancreas. The postoperative course was uneventful and she was discharged on day 6. surgical margins were negative. Histology revealed a GIsT with a diameter of 3.2 cm and ses/50 high power fields, indicating a low risk of malignancy. Therefore, adjuvant therapy with imatinib was not initiated. Wedge resection with primary closure is a surgical procedure that can be used to treat low malignant potential neoplasms of the duodenum and avoid extensive surgery, with significant morbidity and possible mortality, such as pancreatoduodenectomy.

关键词： Gastrointestinal stromal tumor Duodenum Wedge resection surgery

Nomograms as Predictive Tools for Prostate Cancer Patients Who Had Radical Prostatectomy

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Open Journal of Urology 2011年第3期1卷 37-47页

作者： saadettin Eskicorapci Cenk acar Zafer sinik Zafer Aybek Michael Kattanb 不详

Prostate cancer is the most common solid cancer for men in the developed countries. Radical prostatectomy is the most preferred treatment modality for localized prostate cancer. Individual decision making is necessary for each patient because of the diversities in the biological characteristics of the prostate cancer. The prediction of pathologic stage, prognosis and cancer specific mortality after curative therapy and quality of life issues are essential for counseling and tailoring treatment in possible candidates of radical prostatectomy. several studies demonstrated that nomograms are the best predictive tools regarding the other prediction models. For better understanding the nomograms in radical prostatectomy patients, they should be classified according to categories for their use. PsA, Gleason grade and clinical stage are seemed to be the most important prognostic factors in patients who are candidates for radical prostatectomy. Additionally, the pathological parameters are remarkable prognostic criteria. The Partin tables for predicting the radical prostatectomy pathology and Kattan nomograms for predicting the biochemical recurrences free survival rates are the most frequently used nomograms. Today, these nomograms should not replace the clinical decisions but they give significant information for the patients’ prognosis, treatment selection and follow up.

关键词： Nomogram Prediction Prostate Cancer Prognosis Radical Prostatectomy

Effect of surface Treatment on Elemental Composition of Recast NiCr Alloy

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Materials sciences and Applications 2012年第3期3卷 163-167页

作者： Tevfik Yavuz Asli acar serhan Akman Atiye Nilgun Ozturk Department of Prosthodontics Selcuk UniversityKonyaTurkey Department of Prosthodontics Gaziantep UniversityGaziantepTurkey

Objective: The aim of this study was to compare the effects of different surface treatments on the elemental composition stability of as-received and recast types of NiCr casting alloys. Material and Methods: six commercial NiCr dental casting alloys (Kera N, Nodelco, Bellabond, Wiron 99, Metaplus VK, and Tritech D) were used in this study. seventy-two specimens (12 × 12 × 1.2 mm) were produced using the lost-wax casting process. Three casting protocols were established in relation to the proportion of as-received and recast alloys: Group A (100% as-received metal), Group B (50 wt% new metal, 50 wt% once-recast metal), and Group C (100% once-recast metal). Two specimens in every group received two different surface treatments: sandblasting with 110 μmm Al2O3 or oxidation firing. An elemental analysis was performed with x-ray energy-dispersive spectroscopy. Results were subjected to one-way analysis of variance and Tukey HsD tests. Results: The elemental composition was significantly different in the casting groups and treatment groups (p st mean weight percentage Ni value was recorded for Group C and the highest for Group A. Aluminum-oxide sandblasting of the alloy surface reduced the mean weight percentage for Cr. Conclusion: Recasting metal alloys may adversely affect surface quality.

关键词： Recasting Elemental Composition NiCr Alloy

Ureterolithotripsy under spinal Anesthesia in Pompe Disease (Glycogen storage Disease Type 2): A Case Report

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Open Journal of Anesthesiology 2013年第2期3卷 61-63页

作者： Arzu acar Mustafa Nuri Deniz Elvan Erhan Gulden Ugur Department of Anaesthesiology and Reanimation School of MedicineEge UniversityIzmirTurkey.

Pompe disease is an autosomal recessive inherited glycogen storage disease, usually respiratory muscles, cardiac muscle and skeletal muscles are affected in childhood and mortality is inevitable but has a slower progression in the adult. The patient was a 35-year-old male patient who was scheduled to undergo ureterorenoscopy due to right ureteral stone. He was diagnosed with pompe disease after detection of myopathy on EMG due to muscle weakness in the legs and hips. He was started on myozyme vials once every 15 days. spinal anesthesia with 3 ml 0.5% hyperbaric bupivacaine was performed and adequate sensorial and motor block was achieves at T10 level. The surgery was completed with no complications and he was discharged two days later. The selection of appropriate anesthetic technique and a careful perioperative and postoperative monitoring are of utmost importance due to progressive muscle weakness, hypotonia, respiratory failure and cardiomyopathy in pompe disease.

关键词： Pompe Disease spinal Anesthesia Ureterorenoscopie

干眼症和前睑缘炎及季节性过敏性结膜炎中三种检测方法结果的比较(英文)

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国际眼科杂志 2013年第11期13卷 2163-2168页

作者： Mutlu acar Volkan Yaylali Ahmet Cevik Tufan Cem Ylldmm 安卡拉Diskapi耶尔德勒姆贝亚培训和研究医院卫生系眼科土耳其安卡拉06110 棉花堡大学医学院眼科系土耳其德尼兹利20070 棉花堡大学医学院组织胚胎学系土耳其德尼兹利20070

目的:比较三组临床患者和对照组患者的泪液功能测试,眼表染色以及结膜印象细胞学检测的结果。方法:这是一个单中心,前瞻性,双盲,随机对照试验。研究包括泪液分泌分数小于10mm和泪膜破裂时间(TBUT)小于10s的20例干眼症患者,有干燥和结痂... 详细信息

目的:比较三组临床患者和对照组患者的泪液功能测试,眼表染色以及结膜印象细胞学检测的结果。方法:这是一个单中心,前瞻性,双盲,随机对照试验。研究包括泪液分泌分数小于10mm和泪膜破裂时间(TBUT)小于10s的20例干眼症患者,有干燥和结痂睫毛的20例前睑缘炎患者,上眼睑睑板结膜乳头肥大的20例季节性过敏性结膜炎患者和20例对照组患者。比较泪液分泌的分数,泪膜破裂时间,眼表染色(牛津分级方案),杯状细胞密度(尼尔森分级方案评估所有患者的印象细胞学和化生分数)。结果:三组患者和对照组患者在泪液功能测试结果,眼表染色评分,杯状细胞密度和化生分数上有显著差异(P<0.001)。结论:结果证明这三种疾病的炎症反应造成严重眼表损害,并在局部产生炎症。这种损伤产生非常严重的影响,尤其是对结膜杯状细胞密度和化生。杯状细胞损伤程度与临床研究结果有关联。

关键词：前睑缘炎结膜印象细胞学干眼症眼球表面染色季节性过敏性结膜炎

Low Concentration of CO Gas sensor by Atomic Layer Deposition

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Journal of Physical science and Application 2014年第8期4卷 488-492页

作者： Mehmet Demir Ozlem Barin Irmak Karaduman Dilber Esra Yildiz selim acar Department of Physics Gazi University Ankara 06500 Turkey Department of Physics Hitit University Corum 19030 Turkey

In this study, Al/TiO2/Al2O3/p-si was fabricated as a gas sensor. TiO2 and Al2O3 were grown by Atomic Layer Deposition method. The prepared film was tested in various gas concentrations at different operating temperatures ranging between 27 ℃ to 177 ℃. The sensitivity increases with increasing gas concentration and operating temperature which have a direct effect on sensing surface. The gas sensing mechanism could be explained with the surface controlled type based on the change of the electrical conductance of the semiconducting material. This mechanism is controlled by CO molecules and the amount of chemisorbed oxygen on the surface which is associated with temperature. sample exhibits the basic parameters for gas sensors applications which are good stability, reproducibility and high sensitivity to CO gas which are. In addition, the response and recovery times are measured 19 and 26 s, respectively.

关键词： Gas sensors CO surface controlled type.

原发性房角关闭眼激光虹膜切除术后UBM测量参数比较(英文)

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国际眼科杂志 2012年第1期12卷 17-20页

作者： Bora Yüksel Tümay (O)rsel Memed acar sevgi Onat 伊兹密尔Bozyaka教学研究医院眼科上耳其伊兹密尔

目的:比较激光虹膜切开术前后原发性房角关闭(primary angle closure,PAC)眼超声生物显微镜(ultrasound biomicroscopy,UBM)参数。方法:对46例74眼PAC患者进行了一项前瞻性临床试验。平均年龄58,04±11.33(24.0-82.0)岁。所有病例行完... 详细信息

目的:比较激光虹膜切开术前后原发性房角关闭(primary angle closure,PAC)眼超声生物显微镜(ultrasound biomicroscopy,UBM)参数。方法:对46例74眼PAC患者进行了一项前瞻性临床试验。平均年龄58,04±11.33(24.0-82.0)岁。所有病例行完整的眼科检查,前房角镜A超生物测量和超声生物显微镜检查(Vu-max,sonomedInc.,NY,UsA)及24-2标准无色差视野检查(sAP,Humphrey Visual Field Analyzer-II i,Carl Zeiss Meditec Inc.,Dublin,CA,UsA)。使用配对t检验评估基准和随访的平均值之间的变化。结果:激光周边虹膜切除术(laser peripheral iridotomy,LPI)术后,平均房角从8.02±4.61(0.10-19.60)度增加到17.66±6.39(0.10-32.70)度(P=0.000),房角开放距离500(angle opening distance 500,AOD500)从0.11±0.06(0.01-0.30)mm增加到0.23±0.07(0.13-0.50)mm(P=0.000),平均虹膜厚度(iris thickness,IT)从0.58±0.11(0.33-0.99)mm下降到0.52±0.10(0.25-0.77)mm(P=0.000)。小梁睫状突距离,虹膜睫状突距离和睫状体厚度均未发现显著统计学差异。结论:LPI术后PAC的白种人眼睛的AOD500,虹膜晶体距离和前房角增加,IT和虹膜晶体高度减少。这说明LPI解除了瞳孔阻滞,加深了前房,扩大了房角,减少了虹膜前凸和增厚。

关键词：超声生物显微镜激光周边虹膜切除术房角关闭

Cancer diagnosis is one quarter lower than the expected cancer incidence in the first year of COVID-19 pandemic in Germany:A retrospective register-based cohort study

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Cancer Communications 2022年第7期42卷 673-676页

作者： Johannes Diers Laura acar Johanna C.Wagner Philip Baum Mohammed Hankir sven Flemming Carolin Kastner Christoph-Thomas Germer Helmut L’hoest Ursula Marschall Johan Friso Lock Armin Wiegering Department of General VisceralTransplantationVascular and Pediatric SurgeryUniversity HospitalUniversity of WuerzburgWuerzburg 97080Germany Department Medizin und Versorgungsforschung Institut fuer GesundheitssystemforschungBarmerWuppertal 42275Germany Department of Biochemistry and Molecular Biology University ofWuerzburgWuerzburg 97074Germany Comprehensive Cancer Centre Mainfranken University of Wuerzburg Medical CentreWuerzburg 97080Germany

Dear Editor,The coronavirus disease of 2019(COVID-19)pandemic has necessitated that semi-urgent and elective medical cases,including cancer screenings,are postponed in hospitals worldwide to accommodate the increasing number of patients with severe COVID-19 symptoms[1-4].Consequently,several reports from the first COVID-19 wave in spring 2020 showed a significant decrease in new cancer diagnoses as well as cancer therapy and screenings[5,6].

关键词： diagnosis cancer Cancer

Effects of Zr substitution on structural,morphological,and magnetic properties of bismuth iron oxide phases

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Chinese Physics B 2017年第8期26卷 450-455页

作者： A Asif M Hassan s Riaz s Naseem s s Hussain Materials Growth and simulation Laboratory Department of PhysicsUniversity of the PunjabLahore-54590Pakistan Center of Excellence in solid state Physics University of the PunjabLahore-54590Pakistan

The present study involves co-precipitation method to grow un-doped and Zr-doped bismuth iron oxide with x_（Zr）=0.10–0.30. The molar solutions of ferric chloride（FeCl_3）, zirconyle chloride（ZrOCl_2）, and bismuth chloride（BiCl_3） are prepared in distilled water, and are allowed to react with sodium hydroxide（Na OH）. The synthesized powders are then converted into pellets, which are sintered at 500℃ for two hours in a muffle furnace. X-ray diffraction（XRD） shows multi-phase formation in un-doped and Zr doped samples. scanning electron microscope（sEM） depicts layered structure at low Zr concentration x_（Zr）= 0.10, while uniform surface with smaller grains and voids is observed at x_（Zr）= 0.20, but at x_（Zr）= 0.30, cracks and voids become prominent. The ferromagnetic nature of the un-doped sample is observed by vibrating sample magnetometer（VsM）, while paramagnetic behavior appears due to Zr doping. The ferromagnetism in un-doped sample is lost by Zr doping, which is due to the formation of additional Fe–O–Zr bonds that induce paramagnetic behavior.

关键词： co-precipitation multi-phases ferromagnetism paramagnetism BiFeO3