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Improved Image Compression Scheme Using Hybrid Encoding Algorithm 基于混合编码算法的改进图像压缩方案
Pub Date : 2019-10-31 DOI: 10.24017/science.2019.2.9
Y. Salih, A. Mohammed, Loay E. George
A color image compression is the most challenging task in the field of multimedia. During last decades several techniques are developed for improving the quality, coding time and compression ratio using different coding strategies. In this work, an effective compression method for hybrid images is proposed based on the discrete wavelet transformation and hybrid encoding algorithm (Huffman and SPIHT). This paper's primary participation is to take advantage of the hybrid encoding technique to maintain the quality of the reconstructed image and the reduction of time complexity. The sample test images are taken from both standard image database and high-quality images (SD and HD). The performance of the proposed scheme is evaluated by using different metrics such as (PSNR, compression ratio and encoding time). Test results indicate that the time and compression ratio of encoding are improved in the expense of the image quality.
彩色图像压缩是多媒体领域中最具挑战性的课题。在过去的几十年里,采用不同的编码策略,开发了几种提高编码质量、编码时间和压缩比的技术。本文提出了一种基于离散小波变换和混合编码算法(Huffman和SPIHT)的混合图像压缩方法。本文的主要工作是利用混合编码技术来保持重构图像的质量和降低时间复杂度。样本测试图像取自标准图像数据库和高质量图像(SD和HD)。采用PSNR、压缩比和编码时间等指标对该方案进行了性能评价。测试结果表明,以牺牲图像质量为代价,提高了编码时间和压缩比。
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引用次数: 3
Effects of Additive Materials on Indirect Tensile Strength and Moisture Sensitivity of Recycled Asphalt Pavement (RAP) 添加剂对再生沥青路面间接抗拉强度和水敏性的影响
Pub Date : 2019-10-28 DOI: 10.24017/science.2019.2.8
S. M. Ebrahim, Hardy Karim
Using reclaimed asphalt pavement with additives as part of new road construction has economic and environmental advantages. As an attempt to preserve aggregate resources and save money, and knowing the effects of the selected additive materials, this study was done in Sulaimani City. The samples of the RAP were selected from the Sulaimani municipality stockpiles. The ignition and centrifuge testing machines were used to separate the aggregate and binder of the RAP. Based on the standard deviation of the obtained asphalt content, the blend was decided to be 40% RAP and 60% new material. The aggregate tests were conducted to evaluate the characteristics of the PAR aggregate. The performance grade test was done for the reclaimed asphalt binder. Three types of additives, which were Styrene Butadiene-Styrene (SBS), Crumb Rubber (CR), and Polypropylene (PP), mixed with the reclaimed asphalt binder with three different percentages of the binder which were 3%, 5%, and 7%. Indirect Tensile Strength (ITS) test was performed to the conditioned and unconditioned mixtures. To evaluate the effects of additives on the moisture sensitivity of the reclaimed mixtures, ITS Ratios were obtained. Most of the percentages of additives decreased the ITS of the conditioned and unconditioned samples. The only percentage of the additive material increased the ITS was 5% of PP in conditioned case. However, additives did not benefit the ITS, they benefited the ITSR greatly. The best obtained ITSR for each additive material was 7% SBS, 3% CR, and 5% PP that had 99.71%, 97.1%, and 90.7%, respectively.
利用掺加添加剂的再生沥青路面作为新建道路的一部分,具有经济和环境优势。为了保护总资源和节省资金,并了解所选添加剂材料的影响,本研究在苏莱曼尼市进行。RAP的样本是从苏莱曼尼市的库存中选择的。采用点火试验机和离心试验机对RAP的骨料和粘结剂进行分离。根据所得沥青含量的标准差,确定混合料为40% RAP和60%新材料。进行了骨料试验,以评价PAR骨料的特性。对再生沥青粘结剂进行了性能等级试验。将苯乙烯-丁二烯-苯乙烯(SBS)、橡胶屑(CR)和聚丙烯(PP)三种助剂与再生沥青粘结剂混合,粘结剂的掺量分别为3%、5%和7%。对条件混合料和非条件混合料进行了间接拉伸强度(ITS)试验。为了评价添加剂对再生混合料水分敏感性的影响,计算了ITS比。大多数添加剂的添加都降低了条件和非条件样品的ITS。在条件条件下,添加材料增加ITS的唯一百分比是5%的PP。添加剂对ITS的影响不大,但对ITS的影响较大。各添加材料的最佳ITSR分别为7% SBS、3% CR和5% PP,分别为99.71%、97.1%和90.7%。
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引用次数: 3
Monitoring and Controlling Electric Power Stations Using GSM Network 利用GSM网络对电站进行监控
Pub Date : 2019-10-20 DOI: 10.24017/science.2019.2.7
Goran Ismail, Bilal A. Mubdir, A. Majeed, A. Al-hindawi
This paper introduces a system design for monitoring and controls the components of power generation station and substation with help of existing communication link based on GSM network. In this design, a selected Programmable Logic Controller (PLC) connected to the fields that needed to be monitored and continuously read changes in measurements of electrical parameters like voltage, current, bus bar circuit breakers…..etc.. These parameters have been monitored by PLC, on the base of conditions that PLC is programmed. PLC generates a text message and forward to other side; control center or mobile phone of engineer and technicians; who are responsible of monitoring. At control center, another GSM modem which has capability to connect with personal computer, receives that text massage using SMS and executes it. Software written with Vb.Net, works as Human Machine Interface (HMI) for this purpose. The system performance is acceptable in terms of errors in readings and time delay. The percentage error for the current is about 1%, and for the voltage is about 0.2%. The delivery time to receive new analog and digital inputs data is about 14.125 seconds, while the control of the circuit done after 4.68 seconds.
本文介绍了一种基于GSM网络,利用现有通信链路对发电站和变电站组件进行监控的系统设计。在这种设计中,选定的可编程逻辑控制器(PLC)连接到需要监控的字段,并连续读取电气参数测量值的变化,如电压、电流、母线断路器…。。这些参数已由PLC根据PLC编程的条件进行监测。PLC生成文本消息并转发到另一侧;工程师和技术人员的控制中心或手机;谁负责监督。在控制中心,另一个GSM调制解调器可以连接到个人计算机,使用SMS接收文本消息并执行它。用Vb.Net编写的软件可以作为人机界面(HMI)。就读数误差和时间延迟而言,系统性能是可以接受的。电流的百分比误差约为1%,电压的百分比误差为0.2%。接收新的模拟和数字输入数据的传输时间约为14.125秒,而电路的控制在4.68秒后完成。
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引用次数: 0
Hybrid Onboard Smartphone Sensors Measurements to Improve Heading Estimation for Indoors Positioning Solutions 混合车载智能手机传感器测量,改善室内定位解决方案的航向估计
Pub Date : 2019-10-20 DOI: 10.24017/science.2019.2.5
Haval D. Abdalkarim, H. Maghdid
In the last decade, there is a significant progression and huge demand in using technology; specifically, those technologies are embedded in smartphones (SP). Examples of these technologies are embedding various sensors for multi-purposes. Positioning sensors (Accelerometer, Gyroscope, and Magnetometer) are one of the significant technologies. Besides this, indoor positioning services on smartphones are the main advantage of these sensors. There are many indoor positioning applications, for instance; billing, shopping, security and safety, indoor navigation, entertainment applications, and other point-of-interest (POI) applications. Nevertheless, precise position information through current positioning techniques is the main issue of these applications. The pedestrian dead reckoning (PDR) technique is one of the techniques in which the integration of onboard sensors is used for locating smartphones. Estimated distance, heading, and typical speed can be measured to determine the estimated position of the smartphone via using the PDR technique. The PDR technique offers a low positioning accuracy due to existing accumulated errors of the embedded sensors. To solve this issue, this article proposes a hybrid multi-sensors measurement to reduce the existing sensors drifts and errors and to increase estimated heading accuracy of the smartphone. Further, the sensors’ measurements with the previously estimated position are fused by using KALMAN Filter to determine the current location of the smartphone in each step of walking with better angular displacement accuracy. Proposed algorithm depends on increasing estimated angular displacement of the smartphone using combination of the integrated sensors’ measurements. The achieved positioning accuracy through the proposed approach and based on trial experiments is around 2 meters, which is equivalent to 10% improvement in comparison with state of the art.
在过去的十年里,在使用技术方面有了显著的进步和巨大的需求;具体地说,这些技术被嵌入到智能手机(SP)中。这些技术的例子是嵌入用于多种目的的各种传感器。定位传感器(加速度计、陀螺仪和磁强计)是一项重要的技术。除此之外,智能手机上的室内定位服务是这些传感器的主要优势。例如,有许多室内定位应用;计费、购物、安全和安保、室内导航、娱乐应用程序和其他兴趣点(POI)应用程序。然而,通过当前定位技术获得精确的位置信息是这些应用的主要问题。行人航位推算(PDR)技术是集成车载传感器用于定位智能手机的技术之一。可以使用PDR技术测量估计的距离、航向和典型速度,以确定智能手机的估计位置。PDR技术由于嵌入式传感器的现有累积误差而提供较低的定位精度。为了解决这个问题,本文提出了一种混合多传感器测量方法,以减少现有传感器的漂移和误差,并提高智能手机的估计航向精度。此外,通过使用卡尔曼滤波器将传感器的测量值与先前估计的位置融合,以更好的角位移精度确定智能手机在每一步行走中的当前位置。所提出的算法依赖于使用集成传感器的测量组合来增加智能手机的估计角位移。通过所提出的方法和基于试验的定位精度约为2米,与现有技术相比,相当于提高了10%。
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引用次数: 1
Nurses’ Knowledge Regarding Food-Drug Interaction in the Intensive Care and Emergency Hospitals 重症监护和急诊医院护士对食品与药物相互作用的认识
Pub Date : 2019-10-16 DOI: 10.24017/science.2019.2.6
Samir Y. Lafi, A. Kamali, B. O. Sharif
Usually supplement is essential and fundamental components for ensure and creating the human body, also drugs seem to survey the life of each individual and ensure the wellbeing for a long life aimed most of illness, but in case nourishment sedate interaction ignored since of information shortage almost it or any reason maybe lead to futile of medicine for the patients or cause life threatening condition because of that, one of the most significant ethical point in every health care setting in the world is patient's safety;  and  the care for patients must be improved in every country to prevent complication of interaction between food and drug. The main objective of this cross-sectional study has been conducted to assess the nurses' knowledge regarding food-drug interaction (FDI) at the intensive care in both of Shar and emergency hospitals in the Slemani city, the data were collected during the period of October up to the end of December. Non-probability, (purposive sample) of 78 nurses at both hospitals, a questionnaire was designed according to literatures and books regarding FDI which contained 25 items, 8 items for demographic characteristics, and 17 items concerning FDI. The validity of the questionnaire was given to a panel of 7 experts, a pilot study was carried out to check the reliability of the questionnaire which determined through the use of stability reliability (test-retest) approach which was estimated as r = 0.81.  The data were collected through the interviewing of the study sample and analyzed through the using of the Statistical Package for Social Sciences SPSS, version 23, and analyzed through the application of descriptive and inferential statistical analysis. The findings of the present study conclude that more than half of nurses had low knowledge and none of them had high level of knowledge, also there is no significant association between the levels of knowledge with age, gender, educational level, years of experience and working place. The study suggested extends the knowledge of nurses regarding the FDI, by training courses from clinical pharmacologists.
通常,补充剂是确保和创造人体的重要和基本组成部分,而且药物似乎可以调查每个人的生活,并确保大多数疾病患者的健康长寿,但是,如果由于信息短缺而忽视营养与镇静剂的相互作用,无论出于何种原因,都可能导致患者的药物无效或导致危及生命的情况,那么世界上每个医疗机构最重要的伦理问题之一就是患者的安全;每个国家都必须改善对患者的护理,以防止食物和药物相互作用的并发症。这项横断面研究的主要目的是评估护士在沙尔市重症监护室和Slemani市急诊医院的食品-药物相互作用(FDI)方面的知识,数据是在10月至12月底期间收集的。非概率,(目的性样本)对两家医院的78名护士,根据有关外国直接投资的文献和书籍设计了一份问卷,其中包括25个项目,8个人口特征项目和17个外国直接投资项目。问卷的有效性由7名专家组成,进行了一项初步研究,以检查通过使用稳定性-可靠性(测试-再测试)方法确定的问卷的可靠性,估计为r=0.81。通过对研究样本的访谈收集数据,并使用社会科学统计软件包SPSS 23版进行分析,并通过描述性和推断性统计分析的应用进行分析。本研究的结果表明,超过一半的护士知识水平较低,没有一个护士知识水平较高,而且知识水平与年龄、性别、教育水平、经验年限和工作地点之间也没有显著关联。该研究建议通过临床药理学家的培训课程来扩展护士对外国直接投资的知识。
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引用次数: 2
Laborer’s Efficiency of Gypsum Plastering in Sulaimani City’s Projects 苏莱曼尼市工程中石膏抹灰工人的效率
Pub Date : 2019-10-06 DOI: 10.24017/science.2019.2.3
A. K. Abdullah, N. Ali, P. Abdullah
In this study, the Laborer’s Efficiency (LE) in building projects in Sulaimani City practically on field sites were investigated for Gypsum plastering (GP). Accordingly, four constructional different buildings as Multistory, commercial and houses were considered. Overall 11 main important factors during 30 practical records on field sites were practically observed.  As a result, for the first time the Laborers’ Efficiency (LE) was measured and classified into three categories high, medium and low for two specific heights which were 0-2 m and 2-3 meters height of walls. On the other hand, it concluded that the LE for the height of 0-2m affected on LP from 15.18 to 21.35m2/hr., with a proportion of 40.6%. In addition to the LE affected-on LP for the height of 2-3m and varied the LP range between 13.33-15 m2/hr., with a proportion of 12.5%.
在本研究中,对苏莱曼尼市建筑项目中石膏抹灰(GP)的工人效率(LE)进行了实地调查。因此,考虑了四种不同结构的建筑,如多层、商业和住宅。在实地进行的30次实际记录中,总共观察到11个主要重要因素。因此,首次测量了劳动者效率(LE),并将其分为高、中、低三类,分别用于0-2米和2-3米的墙壁高度。另一方面,得出的结论是,0-2米高度的LE对LP的影响范围为15.18至21.35平方米/小时,比例为40.6%。,占12.5%。
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引用次数: 2
An improved Fully Homomorphic Encryption model based on N-Primes 基于n素数的改进全同态加密模型
Pub Date : 2019-10-06 DOI: 10.24017/science.2019.2.4
M. A. Mohammed, F. S. Abed
Cloud computing is the provision of computing services over the internet, which provides unlimited computing capabilities to its users. Cloud Service Providers (CSP) in the distanced places helps the users such as businesses and individuals to use its software and hardware means.  The physical distance between the users and providers allows third parties to be capable of accessing the data which threats the privacy of the users. Thus, its security is the main concern when it comes to transform data from a locally owned storage to cloud storage. Cloud providers are required to save an encrypted version of user’s data on their storage. The traditional encryption schemes have been used for data encryption prior to sending them to the provider. Thought, the secret key has to be provided by the users to the server so as to decrypt the information prior to the requirement of calculations. Therefore, the traditional cryptographic schemes cannot be used to process cloud’s data. After the encryption of the information data are revealed to calculation in clouds, so confidentiality is not guaranteed and this result in difficulty in using cloud. In Homomorphic Encryptions calculation on ciphertext can be performed with no need for decryption.  This paper, develops and designs a new mathematical model to achieve the characteristics of the Fully Homomorphic Encryption. The proposed model’s security depends on the problem of Factorization the integers to their primary numbers. In this paper, instead of dealing with two prime numbers it is expanded to deal with n prime numbers. The security of the presumptive algorithm to be more efficient in front of the security challenges facing cloud computing. What distinguishes this proposed system is that it deals with the explicit text after converting it to the ASCII code instead of converting it to the binary system as it is in the existing systems, thus providing speed in the encryption process and returns the encryption.
云计算是通过互联网提供的计算服务,它为用户提供无限的计算能力。远程云服务提供商(CSP)帮助企业和个人等用户使用其软件和硬件手段。用户和提供商之间的物理距离允许第三方能够访问威胁用户隐私的数据。因此,在将数据从本地拥有的存储转换为云存储时,其安全性是主要关注的问题。云提供商需要在其存储设备上保存用户数据的加密版本。在将数据发送给提供者之前,已经使用传统的加密方案进行数据加密。因此,用户必须将密钥提供给服务器,以便在计算需求之前对信息进行解密。因此,传统的加密方案不能用于处理云数据。信息数据经过加密后暴露在云中进行计算,保密性得不到保证,给云的使用带来了困难。在同态加密中,可以在不需要解密的情况下对密文进行计算。本文开发设计了一个新的数学模型来实现完全同态加密的特性。该模型的安全性取决于将整数分解为其主数的问题。在本文中,它由处理两个素数扩展到处理n个素数。在云计算面临的安全挑战面前,假定算法的安全性更加高效。这个系统的不同之处在于,它在将显式文本转换为ASCII码后处理文本,而不是像现有系统那样将其转换为二进制系统,从而提高了加密过程的速度并返回加密。
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引用次数: 5
Evaluation of Nurses’ Performance Regarding Personal Protective Equipment at Rania Teaching Hospital 拉尼亚教学医院护士个人防护装备绩效评价
Pub Date : 2019-09-25 DOI: 10.24017/science.2019.ichms.20
B. O. Sharif, Frishta M. Khdir, Padasht M. Khdir, Sarezh A. Rasul
Personal protective equipment (PPE) refers to protective clothing that acts as a barrier between infectious materials such as viral, bacterial contaminants and the skin, mouth, nose, eyes and mucous membranes. It includes gloves, mask, eye goggles and gown. It is a shortage of study of university students. The aim of the current study was performing to provide demographic data and to evaluate nurse’s performance regarding PPE at Rania teaching Hospital in Kurdistan region of Iraq, during the period of 10th October up to 7th of March. A non- probability purposive sample of (72 nurses), data collection of the study instrument was constructed of total (42) items. A professional team that contains of (11) experts were performed validity of the instrument. Reliability of the instrument was determined through the use of Equivalence (inter-rator or inter-observer), the data were collected through the use of evaluation technique then organized and coded into computer files. Statistical approaches were uses for data analyzed, also data analysis by (SPSS version 25). The result has revealed that highest age of the sample was between 30-39  years and most of them were institute nurses and more than half of nurses had less than 10 years of employment but most of them not trained yet. The majority of nurses were performed many nursing procedures such as wound dressing, suturing, suctioning, naso-gastric tube and  Foley catheter insertion without using PPE properly and without washing hands before procedures. Also, there was no significant relationship between personal protective equipment and some socio- demographic data. The researchers recommended training course regarding personal protective equipment by the ministry of health/infection control department and participants of symposia.
个人防护装备(PPE)是指在病毒、细菌污染物等传染性物质与皮肤、口、鼻、眼和粘膜之间起屏障作用的防护服。它包括手套、口罩、护目镜和长袍。这是大学生学习的不足。本研究的目的是提供人口统计数据,并评估10月10日至3月7日期间伊拉克库尔德斯坦地区拉尼亚教学医院护士在个人防护装备方面的表现。采用非概率目的样本(72名护士),研究工具的数据收集共(42)项。由11位专家组成的专业团队对仪器进行了效度检验。仪器的可靠性通过使用等效性(评估者或观察者之间)来确定,数据通过使用评估技术收集,然后组织和编码到计算机文件中。数据分析采用统计学方法,采用SPSS软件(25版)进行数据分析。调查结果显示,受访护士的最高年龄在30-39岁之间,以研究所护士居多,超过一半的护士入职时间不足10年,但大部分未接受过培训。大多数护士在进行伤口敷料、缝合、吸痰、鼻胃管、Foley导管插入等护理操作时,未正确使用个人防护装备,操作前未洗手。此外,个人防护装备与一些社会人口统计数据之间没有显著的关系。研究人员建议由卫生部/感染控制部门和专题讨论会的参与者进行有关个人防护装备的培训课程。
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引用次数: 0
Assessment of documentation on current medical records of patients in Accident and Emergency Hospital of Sulaimani-Iraq 对伊拉克苏莱曼尼事故和急救医院患者当前医疗记录文件的评估
Pub Date : 2019-09-16 DOI: 10.24017/science.2019.2.2
Delan Jamal Qader, F. H. Faraj
The patient record is an essential patient data were the nursing documentation part is fundamental. .Competent nursing care is based on correct and complete records, and keeping record is an essential skill that needs to be developed by each and every health staff. The present study was conducted in order to assess the documentation on current medical patient’s records in the Accident and Emergency Hospital/Sulaimani city. A quantitative descriptive design. Research was accomplished, based on retrospective data made available by the Accident and Emergency Hospital. Non-probability (purposive sample) of 201 patient files were selected from 1,194 patient files during 6 months between Jun to December 2016.The present study showed that the face sheet was completely recorded about %95 which means satisfactory, other items which were recorded by physician such as chief complaint and history of present illness, radiology, laboratory, medication intervention report, consent forms, physical examination, and consultant report were unsatisfactorily recorded. Last items which were recorded by the nurse who working in Accident and Emergency Hospital medication and administration record and a graphic sheet of vital signs were unsatisfactorily recorded. Deficiency in documentation system and most of the provided medical and nursing care remains undocumented given numerous deficiencies in the documentation system. It is recommended the components of the nursing record tool can be utilized once a paperless system is implemented as planned in the hospital.
患者记录是一个重要的患者数据,护理文件部分是基础。合格的护理是建立在正确和完整的记录基础上的,而记录是每一位卫生工作者需要培养的基本技能。本研究旨在评估苏莱曼尼市事故和急救医院当前医疗患者记录的文件。定量的描述性设计。研究是根据事故和急救医院提供的回顾性数据完成的。在2016年6月至12月的6个月内,从1194份患者档案中选择了201份患者档案的非概率(有目的的样本)。本研究表明,面皮完整记录了约95%,这意味着满意,医生记录的其他项目,如主诉和当前病史、放射学、实验室、药物干预报告,同意书、体格检查和顾问报告的记录不令人满意。在急诊医院工作的护士记录的最后一项药物和管理记录以及生命体征图表记录不令人满意。鉴于文件系统存在许多缺陷,文件系统的缺陷以及提供的大部分医疗和护理服务仍然没有记录在案。建议在医院按计划实施无纸化系统后,可以使用护理记录工具的组件。
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引用次数: 0
Outcomes after Surgery for Malignant Pancreatic Neuroendocrine Tumors 恶性胰腺神经内分泌肿瘤手术后的预后
Pub Date : 2019-08-22 DOI: 10.24017/science.2019.ichms.14
Omar H. Ghalib Hawramy, K. Abdullah, Barham M. M. Salih, Qalandar Hussein A. Kasnazani, D. Gharib, Dara Ahmed Mohammed
The aim of the study is to declare the role of surgery in potentially curative malignant pancreatic neuroendocrine tumors, in term of prognosis, survival and complications after the surgical procedures. Does the surgery play a significant role in the best patient’s interest even in metastatic pancreatic neuroendocrine tumors? Clinical and pathological factors that changed the outcomes were also analyzed. It is retrospective, case series study. All patients who were undergoing surgery for malignant pancreatic neuroendocrine tumors from 2013 to 2018. Results show that, sixteen patients were recruited with a mean age at diagnosis of 49.31 years, (ranging from 19-80 years). There were 8 male and 8 female patients. Common symptoms were abdominal pain 12 (75%) of them three cases had clinical jaundice 3 (18.8%) and one case had acute pancreatitis and pancreatic necrosis. One (6.3%) patient had functional tumor, and the rest 15 (93.8%) were nonfunctional tumors; all of the patients were sporadic pancreatic neuroendocrine tumors. Overall morbidity was (43.8%) with no perioperative mortality. The median follow-up period was 23 months, ranging from 5-68 months. Recurrence occurred in four cases with a median disease-free interval of 9.5 moths with grade of differentiation (P-value 0.027), lymph node metastases (P-value 0.027) and tumor stage (P-value 0.017) were associated with recurrent disease. The overall 5 year survival was 81.2% and the disease free survival was (75%) at 5 year, with grade of tumor (P-value 0.001), lymph node metastases (P-value 0.001), invasion of other visceral organs(P-value 0.018) and recurrence (P-value 0.001)were associated with decreased survival. In conclusion, pancreatic neuroendocrine tumors have favorable long-term survival after surgical resections even in the presence of liver metastases depending on the grade of differentiation of tumor and lymph node metastases rather than liver metastases and other factors
本研究的目的是从预后、生存率和手术后并发症的角度,阐明手术在潜在治疗性恶性胰腺神经内分泌肿瘤中的作用。即使在转移性胰腺神经内分泌肿瘤中,手术是否对患者的最佳利益起着重要作用?还分析了改变结果的临床和病理因素。这是一项回顾性的病例系列研究。2013年至2018年接受胰腺恶性神经内分泌肿瘤手术的所有患者。结果显示,招募了16名患者,诊断时的平均年龄为49.31岁(19-80岁)。男8例,女8例。常见症状为腹痛12例(75%),其中临床黄疸3例(18.8%),急性胰腺炎和胰腺坏死1例。功能性肿瘤1例(6.3%),非功能性肿瘤15例(93.8%);所有患者均为散发性胰腺神经内分泌肿瘤。总发病率为(43.8%),无围手术期死亡率。中位随访期为23个月,从5-68个月不等。复发发生在4例病例中,中位无病间隔为9.5个月,分化程度(P值0.027)、淋巴结转移(P值0.02 7)和肿瘤分期(P值0.017)与复发疾病相关。总的5年生存率为81.2%,5年无病生存率为(75%),肿瘤分级(P值0.001)、淋巴结转移(P值001)、其他内脏器官侵袭(P值0.018)和复发(P值.001)与生存率下降有关。总之,胰腺神经内分泌肿瘤在手术切除后,即使存在肝转移,也有良好的长期生存率,这取决于肿瘤和淋巴结转移的分化程度,而不是肝转移和其他因素
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引用次数: 0
期刊
Kurdistan Journal of Applied Research
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