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Enucleation and evisceration: indications, complications and clinicopathological correlations

International Journal of Ophthalmology(English edition) 2014年第4期7卷 677-680页

作者： Ali Kord Valeshabad Masood Naseripour Rajab Asghari seyed Hamid parhizgar seyed ehsan parhizgar Mohammad Taghvaei Shahin Miri Department of Ophthalmology and Visual Sciences University of Illinois at Chicago Department of Ophthalmology Eye Research CenterRassoul Akram Hospital Iran University of Medical Sciences School of Medicine Tehran University of Medical Sciences Department of Ophthalmology Baqiyatallah University of Medical Sciences Department of Neurosurgery Imam Khomeini HospitalTehran University of Medical Sciences

·AIM: To assess main indications, postoperative complications and clinicopathological correlation of ocular enucleation-evisceration.·METHODS: A total of 107 subjects who underwent enucleation and/or evisceration and received hydroxyapatite implants(Scleral wrap or mesh) were assessed. For each patient clinicopathological data was collected which included demographic information,clinical history, primary clinical diagnosis, main cause of ophthalmic surgery(traumatic, non-traumatic), type of surgical procedure(enucleation, evisceration) and pathological report. Patients’ postoperative clinical visits were checked for procedure-related complications during first year after surgery.·RESULTS: One hundred and seven patients(male:65.4%; mean age: 26y) underwent enucleation(n=100) or evisceration(n =7) due to traumatic(n =41) and non-traumatic(n =66) causes. Disfiguring painful blind eye was the most common indication of surgery(66.4%),followed by leukocoria(19.6%) and endophthalmitis(4.7%). The main types of injury included firecracker,traffic and work accidents, and sharp object perforating injury. In 53(80.3%) subjects in non-traumatic group the initial clinical diagnosis matched the histopathologicalresults. Malignant tumors(retinoblastoma: 47.5%,malignant melanoma: 27.3%) were the most common pathological diagnoses followed by phthisis bulbi(25.8%).The most common procedure-related complications were major eye discharge(39.6%), and implant exposure and discharge(20.8%).·CONCLUSION: Trauma and malignant tumors are the leading causes of enucleation-evisceration. Despite developing new techniques and materials, enucleation is still associated with considerable postoperative complications.

关键词： enucleation evisceration retinoblastoma malignant melanoma ocular injury

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Investigation of the effect of diethylene triamine pentaacetic acid chelating agent as an enhanced oil recovery fluid on wettability alteration of sandstone rocks

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Petroleum Exploration and Development 2023年第3期50卷 675-687页

作者： parhizgar KERADEH Mahsa TABATABAEI-NEZHAD Seyyed Alireza Faculty of Petroleum and Natural Gas Engineering Sahand Univensity of TechnologyTabriz 5135-1996Iran

This study used the diethylene triamine pentaacetic acid(DTPA)-seawater(SW)system to modify the sandstone rock wettability and enhance oil *** investigation involved conducting wettability measurement,Zeta potential measurement,and spontaneous imbibition *** introduction of 5%DTPA-sW solution resulted in a significant decrease in the rock-oil contact angle from 143°to 23,along with a reduction in the Zeta potential from-2.29 mV to-13.06 mV,thereby altering the rock surface charge and shifting its wettability from an oil-wet state to a strongly water-wet *** presence or absence of potential determining ions(Ca^(2+),Mg^(2+),SO_(4)^(2-))in the solution did not impact the effectiveness of DTPA in changing the rock ***,by tripling the concentration of these ions in the solution,the performance of 5%DTPA-SW solution in changing wettability was ***,spontaneous imbibition tests demonstrated that the 5%DTPA-SW solution led to an increase in oil recovery up to 39.6%.Thus,the optimum mass fraction of DTPA for changing sandstone wettability was determined to be5%.

关键词： wettability alteration DTPA chelating agent Zeta potential spontaneous imbibition enhanced oil recovery

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二乙烯三胺五乙酸络合剂对砂岩润湿性的影响

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石油勘探与开发 2023年第3期50卷 594-602页

作者： KERADEH Mahsa parhizgar TABATABAEI-NEZHAD Seyyed Alireza 萨汉德理工大学石油与天然气工程学院伊朗大不里士51335-1996

为了评价二乙烯三胺五乙酸(DTPA)络合剂-海水(SW)体系改变砂岩润湿性、提高原油采收率的效果,开展了岩石润湿性、Zeta电位测试和自发渗吸实验。结果表明,基于海水配制质量分数为5%的DTPA-SW溶液,可以使岩石-原油接触角由143°减小至23°... 详细信息

为了评价二乙烯三胺五乙酸(DTPA)络合剂-海水(SW)体系改变砂岩润湿性、提高原油采收率的效果,开展了岩石润湿性、Zeta电位测试和自发渗吸实验。结果表明,基于海水配制质量分数为5%的DTPA-SW溶液,可以使岩石-原油接触角由143°减小至23°,使Zeta电位从-2.29 mV降低至-13.06 mV,表明岩石表面吸收更多负电荷,岩石润湿性由油湿向强水湿状态转变。溶液中电位决定离子(Ca^(2+),Mg^(2+),SO_(4)^(2-))的存在与否不影响DTPA改变润湿性的性能,但当这些离子的浓度增至海水的3倍时,质量分数为5%的DTPA-SW溶液改变润湿性的效果减弱;自发渗吸测试证明,5%DTPA-SW溶液可以将原油采收率提高至39.6%。DTPA络合剂改变砂岩润湿性的最佳质量分数为5%。

关键词：润湿性变化二乙烯三胺五乙酸(DTPA)络合剂 Zeta电位自发渗吸提高原油采收率

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Stability Investigation of Colloidal FePt Nanoparticle Systems by Spectrophotometer Analysis

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Chinese Physics Letters 2009年第2期26卷 248-250页

作者： M. Farahmandjou S. A. Sebt S. S. parhizgar P. Aberomand M. Akhavan Physics Research Center Science and Research Branch Islamic Azad University Tehran Iran Magnet Research Laboratories (MRL) Department of Physics Sharif University of Technology Tehran Iran

FePt magnetic nanoparticle systems are an excellent candidate for ultrahigh-density magnetic recording. Monodisperse FePt nanoparticles are synthesized by superhydride reduction of FECl2·4H2O and Pt （acac）2 at 263℃ under N2 atmosphere. Transmission electron microscopy （TEM） images show monosize EePt nanoparticles with diameter of 4 nm and a standard deviation of about 10%. The average distance between monodispesre particles is nearly 3 nm, and oleic acid and oleylamine surround the nanoparticles as surfactants. Stability investigation of nanoparticle colloidal solution is done via speetrophotometery analysis. The results for FePt nanoparticles dispersed in hexane indicate that adding surfactants with concentration of 3 × 10^-3 part by volume for centrifugation stage increases the stability of FePt nanoparticles solution with concentration of 16 mg/mL, about 67%.

关键词： field emission molybdenum dioxide enhancement factor

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局部外用甲硫咪唑治疗炎症后色素沉着:一种新疗法的首例报道

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世界核心医学期刊文摘（皮肤病学分册） 2006年第2期2卷 53-53页

作者： Kasraee B. Handjani F. parhizgar A. 罗素菊徐波 Jahrom School of Medical Sciences Motahhari Street Jahrom IranDr.

We have previously shown that the peroxidase inhibitor methimazole (1- methyl- 2- mercapto imidazole; MMI) is a noncytotoxic inhibitor of melanin production in cultured B16 melanocytes. It was further demonstrated that the topical application of 5% MMI on brown guinea pig skin for 6 weeks causes a significant reduction in the amount of epidermal melanin, resulting in visually recognizable cutaneous depigmentation. Herein, we report a 27- year- old male with postinflammatory hyperpigmentation (due to acid burn), successfully treated with topical MMI as a new skin depigmenting agent. Topical 5% MMI caused a moderate to marked improvement of the hyperpigmented lesions within 6 weeks of once- daily application. Topical MMI was well tolerated by the patient and did not affect the level of serum thyroid hormones (free thyroxin, free triiodothyronine and the thyroid- stimulating hormone). Unlike most known depigmenting agents, such as hydroquinone and kojic acid, MMI is a noncytotoxic, nonmutagenic compound, and it is possible that MMI could serve as a novel agent for the treatment of hyperpigmentary disorders in human.

关键词：首例报道色素沉着皮肤脱色剂黑色素细胞皮肤色素脱失豚鼠皮肤酸烧伤酶抑制剂细胞毒性体外

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