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Development of Primary Percutaneous Coronary Intervention as a National Reperfusion Strategy for Patients with ST-Elevation Myocardial Infarction and Assessment of Its Use in Egypt

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Cardiovascular Innovations and Applications 2020年第2期4卷 269-278页

作者： Mohamed Sobhy Ahmed Elshal Noha Ghanem hosam hasan-ali Nabil Farag Nireen Okasha El Sayed Farag Mohamed Sadaka Hisham Abo El Enein Sameh Salama Hazem Khamis Khaled Shokry Hany Ragy Amany Elshorbagy Radwa Mehanna Cardiology Department Faculty of MedicineAlexandria University HospitalAlexandriaEgypt International Center for Organization and Marketing AlexandriaEgypt Cardiology Department Faculty of Medicine Assiut University HospitalAssiut GovernorateEgypt Cardiology Department Faculty of Medicine Ain Shams University HospitalHeliopolisEgypt Cardiology Department Nasser InstituteCairoEgypt Cardiology Department Faculty of MedicineZagazig University HospitalZagazigEgypt Cardiology Department Faculty of MedicineBanha University HospitalBanhaEgypt Cardiology Department Faculty of MedicineKasr El Ainy HospitalKasr Al AinyEgypt Cardiology Department Wady El Nile HospitalZeitounEgypt Cardiology Department Military HospitalHeliopolisCairoEgypt Cardiology Department National Heart InstituteHeliopolisCairoEgypt Physiology Department Faculty of MedicineAlexandria UniversityAlexandriaEgypt

Objective:Early treatment of acute ischemia of the heart by performing immediate percutaneous coronary intervention(PCI)to restore blood fl ow in patients with the clinical presentation of an acute coronary syndrome and more specifi cally with ST-elevation myocardial infarction(STEMI)can save *** study aims to identify the mean time(door to balloon time and fi rst contact to balloon time)to primary PCI for STEMI patients and to assess the percentage of primary PCI and its success rate in ***:A registry study of patients presenting to cardiac centers in Egypt was designed,where patients’basic characteristics,the treatment strategy,and the door to balloon time and the fi rst contact to balloon time were ***:One thousand six hundred fi fty STEMI patients with a mean age of 57 years were included in the *** transfer for primary PCI was the most used treatment strategy,representing 74.6%of all treatment strategies *** door to balloon time and the fi rst contact to balloon time were 50 and 60 minutes,respectively,with a primary PCI success rate of 65.1%.Conclusion:The registry study results showed a marked improvement by implementation of the best treatment strategy with respect to the time factor to achieve a better outcome for STEMI patients in Egypt.

关键词： ST-elevation myocardial infarction primary percutaneous coronary intervention door to balloon time fi rst medical contact to balloon time

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Enhancing IoT Security:Quantum-Level Resilience against Threats

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Computers, Materials & Continua 2024年第1期78卷 329-356页

作者： hosam Alhakami College of Computing Umm Al-Qura UniversityMakkahSaudi Arabia

The rapid growth of the Internet of Things(IoT)operations has necessitated the incorporation of quantum computing technologies tomeet its expanding *** integration ismotivated by the need to solve the specific issues provided by the expansion of IoT and the potential benefits that quantum computing can offer in this *** combination of IoT and quantum computing creates new privacy and security *** study examines the critical need to prevent potential security concerns from quantum computing in IoT *** investigate the incorporation of quantum computing approaches within IoT security frameworks,with a focus on developing effective security *** research,which uses quantum algorithms and cryptographic protocols,provides a unique solution to protecting sensitive information and assuring the integrity of IoT *** rigorously analyze critical quantum computing security properties,building a hierarchical framework for systematic *** offer concrete solutions flexible to diverse aswell as ambiguous opinions through using a unified computational model with analytical hierarchy process(AHP)multi-criteria decision-making(MCDM)as the technique for ordering preferences by similarity to ideal solutions(TOPSIS)in a fuzzy *** study adds practical benefit by supporting practitioners in recognizing,choosing,and prioritizing essential security factors from the standpoint of quantum *** approach is a critical step towards improving quantum-level security in IoT systems,strengthening their resilience against future threats,and preserving the IoT ecosystem’s long-term prosperity.

关键词： Quantum security quantum computing Internet of Things fuzzy decision-making

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Fuzzy Based Decision Making Approach for Evaluating the Severity of COVID-19 Pandemic in Cities of Kingdom of Saudi Arabia

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Computers, Materials & Continua 2021年第2期66卷 1155-1174页

作者： Abdullah Baz hosam Alhakami Department of Computer Engineering College of Computer and Information SystemsUmm Al-Qura UniversityMakkahSaudi Arabia Department of Computer Science College of Computer and Information SystemsUmm Al-Qura UniversityMakkahSaudi Arabia

The World Health Organization declared COVID-19 a pandemic on March 11,2020 stating that it is a worldwide danger and requires imminent preventive strategies to minimise the loss of ***-19 has now affected millions across 211 countries in the world and the numbers continue to *** information discharged by the WHO till June 15,2020 reports 8,063,990 cases of *** the world thinks about the lethal malady for which there is yet no immunization or a predefined course of drug,the nations are relentlessly working at the most ideal preventive systems to contain the *** Kingdom of Saudi Arabia(KSA)is additionally combating with the COVID-19 danger as the cases announced till June 15,2020 reached the count of 132,048 with 1,011 *** to the report released by the KSA on June 14,2020,more than 4,000 cases of COVID-19 pandemic had been registered in the *** to the impending requirement for successful preventive instruments to stem the fatalities caused by the disease,our examination expects to assess the severity of COVID-19 pandemic in cities of *** addition,computational model for evaluating the severity of COVID-19 with the perspective of social influence factor is necessary for controlling the ***,a quantitative evaluation of severity associated with specific regions and cities of KSA would be a more effective reference for the healthcare sector in Saudi ***,this paper has taken the Fuzzy Analytic Hierarchy Process(AHP)technique for quantitatively assessing the severity of COVID-19 pandemic in cities of *** discoveries and the proposed structure would be a practical,expeditious and exceptionally precise evaluation system for assessing the severity of the pandemic in the cities of *** these urban zones clearly emerge as the COVID-19 *** cities require suggestive measures of health organizations that must be introduced on a war footing basis to counter the *** analy

关键词： Kingdom of Saudi Arabia COVID-19 severity assessment fuzzy AHP dynamics of infection

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A Proposed Biometric Authentication Model to Improve Cloud Systems Security

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Computer Systems Science & Engineering 2022年第11期43卷 573-589页

作者： hosam El-El-Sofany King Khalid University AbhaKingdom of Saudi Arabia Cairo Higher Institute for Engineering Computer Science and ManagementCairoEgypt

Most user authentication mechanisms of cloud systems depend on the credentials approach in which a user submits his/her identity through a username and ***,this approach has many security problems because personal data can be stolen or recognized by *** paper aims to present a cloud-based biometric authentication model(CBioAM)for improving and securing cloud *** research study presents the verification and identification processes of the proposed cloud-based biometric authentication system(CBioAS),where the biometric samples of users are saved in database servers and the authentication process is implemented without loss of the users’*** paper presents the performance evaluation of the proposed model in terms of three main characteristics including accuracy,sensitivity,and *** research study introduces a novel algorithm called“Bio_Authen_as_a_Service”for implementing and evaluating the proposed *** proposed system performs the biometric authentication process securely and preserves the privacy of user *** experimental result was highly promising for securing cloud services using the proposed *** experiments showed encouraging results with a performance average of 93.94%,an accuracy average of 96.15%,a sensitivity average of 87.69%,and a specificity average of 97.99%.

关键词： Cloud computing cloud security biometrics technologies biometric authentication

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Synthesis and surface modification of nanophosphorous-based flame retardant agent by continuous flow hydrothermal synthesis

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Particuology 2015年第5期13卷 82-88页

作者： Sherif Elbasuney hosam E.Mostafa School of Chemical Engineering Military Technical College

Nanoparticles can provide flame retardance to hosting polymers and act as nano fire extinguishers. Hydroxyapatite （Ca5（OH）（PO4）3）（HA） is not hygroscopic, and is thermally stable up to 800℃, with 18.5 wt% phosphorous content. It is this high phosphorous content that can provide HA with flame retardant properties. In this paper, we report on the continuous synthesis of ultrafine HA using a hydrothermal synthesis technique. The HA surface properties were changed from hydrophilic to hydrophobic by post-synthesis surface modification. The ratio of the HA nanoparticles and an intumescent agent known as Exolit AP750 was investigated to yield a self-extinguishing multi-component epoxy nanocomposite for extended application under extreme fire conditions. The HA/AP750/epoxy nanocomposite was able to resist a flame at 1700 oc and self-extinguish after the flame had been removed. The nanocomposite showed an enhanced flammability performance in standard cone calorimetry testing and formed a compact and cohesive protective char layer with a 50% decrease in peak heat released compared with virgin epoxy. Our aim was to establish the use of HA as an effective nanofiller with phosphorous-based flame retardant properties. The surface of this nano fire extinguisher was modified effectively with different surfactants for enhanced compatibility with different polymeric matrices.

关键词： Flame retardancy Phosphorous-based agent Nanocomposites Hydrothermal synthesis Hydroxyapatite

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The value of sestamibi single-photon emission computed tomography/computed tomography in differentiating and staging renal cell carcinomas:A systematic review

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Current Urology 2022年第1期16卷 32-37页

作者： Abdalla ali Deb Ayman Agag Naufal Naushad Rajbabu Krishnamoorthy hosam Serag Department of Urology Aberdeen Royal InfirmaryAberdeenUK Department of Urology Frimley Park HospitalCamberelyUK Department of Urology Wythenshawe HospitalManchester University NHS Foundation TrustManchesterUK Department of Urology Guthrie Corning HospitalCorningNew YorkUSA Department of Urology University Hospitals BirminghamBirminghamB152GWUK

Misdiagnosis of benign renal neoplasms can lead to unnecessary surgical resections,which increases the risk of other morbid and ***,it is crucial to find a diagnostic modality for differentiation between benign and malignant renal *** the current study,we summarized published pieces of evidence concerning the use of technetium-99m(^(99m)Tc)-sestamibi single-photon emission computed tomography/computed tomography(SPECT/CT)as a promising diagnostic nuclear imaging modality for the differentiation of renal *** study was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement for Systematic Reviews and *** conducted a systematic electronic database search for suitable studies from inception till February 20,2020 in 9 *** risk of bias was assessed for the included studies using the Quality Assessment of Diagnostic Accuracy Studies-2 *** identified 9373 records after exclusion of 8978 duplicates using EndNote *** and abstract screening resulted in 761 records for further full-text ***,four studies were included with total sample size of 80 *** overall risk of bias was low to *** results of all the included studies supported using^(99m)Tc-sestamibi SPECT/CT for the differentiation between benign and malignant renal *** use of^(99m)Tc-sestamibi SPECT/CT could be a rapid,less invasive,promising diagnostic modality for histological diagnosis and staging of renal neoplasm,as well as monitoring post-therapy tumor's ***,more studies with large sample sizes are essential to confirm the reliability and accuracy of this modality for usage.

关键词： ^(99m)Tc-sestamibi Angiomyolipoma Oncocytoma Renal cell carcinoma Systematic review

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Diagnosis and management of choledochal cyst: 20 years of single center experience

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World Journal of Gastroenterology 2014年第22期20卷 7061-7066页

作者： Nabil Gadelhak Ahmed Shehta hosam Hamed Department of Surgery Gastrointestinal Surgical CenterMansoura UniversityManoura 35516DakahleyyaEgypt

We report the first case series from Africa and the Middle East on choledochal cyst, a disease which shows significant geographical distribution with high incidence in the Asian population. In this study, the epidemiological data of the patients are presented and analyzed. Attention was paid to diagnostic imaging and its accuracy in the diagnosis and classification of choledochal cyst. Most cases of choledochal cyst disease have type I and IV-A cysts according to the Todani classification system, which support the etiological theories of choledochal cyst, especially Babbitt’s theory of the anomalous pancreaticobiliary duct junction, which are clearly stated. The difficulties and hazards of surgical management and methods used to avoid operative complications are clarified. Early and late postoperative complications are also included. This study should be followed by multicenter studies throughout Egypt to help assess the incidence of choledochal cysts in one of the largest populations in Africa and the Middle East.

关键词： Choledochal cyst Hepatic cyst Hepaticojejunostomy Caroli disease Hepatectomy

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Implementing Effective Learning with Ubiquitous Learning Technology During Coronavirus Pandemic

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Computer Systems Science & Engineering 2022年第1期40卷 389-404页

作者： hosam F.El-Sofany Samir A.El-Seoud King Khalid University AbhaKingdom of Saudi Arabia Cairo Higher Institute for Engineering Computer Science and ManagementCairoEgypt British University in Egypt—BUE Faculty of Informatics and Computer ScienceCairoEgypt

Ubiquitous computing supports U-learning to develop and implement a new educational environment that provides effective and interactive learning to students wherever they *** study aims to present a qualitative evaluation for using U-learning instead of traditional education to avoid the spread of the Coronavirus *** authors introduce a UTAUT(Unified Theory of Acceptance and Use of Technology)model to assess the capability of the given factors that are expected to affect the learners’intention and behavior for accepting the U-learning technology for full *** research study shows a promising impact on the use of U-learning apps for implementing their learning activities in both the present and coming *** study also presents the descriptive statistics that affect the students’answers by using U-learning while implementing learning assignments including exams,projects,forums,essays,presentations,and *** research experiments demonstrate both the composite reliability(CR)and the average variance extracted(AVE)of the presented *** experimental results have shown that(1)the factor loadings≥0.75,CR≥0.9,and AVE≥0.75,which present appropriate proof for the validity and reliability of the proposed model,and(2)the total average of students that accept the U-learning is 82.99%,and who disagree is 8.13%,while who neither agree nor disagree is 6.44%.

关键词： Ubiquitous learning U-learning E-learning M-learning COVID-19 pandemic coronavirus UTAUT model

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Efficacy of octreotide in the prevention of complications after pancreaticoduodenectomy in patients with soft pancreas and non-dilated pancreatic duct: A prospective randomized trial

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Hepatobiliary & Pancreatic Diseases International 2018年第1期17卷 59-63页

作者： Ayman El Nakeeb Ahmed El Gawalby Mahmoud A.ali Ahmed Shehta hosam Hamed Mohamed El Refea Ahmed Moneer Ahmed Abd El Rafee Gastroenterology Surgical Center Mansoura University

Background: The efficacy of octreotide to prevent postoperative pancreatic fistula(POPF) of pancreaticoduodenectomy(PD) is still controversial. This study aimed to evaluate the effect of postoperative use of octreotide on the outcomes after ***: This is a prospective randomized controlled trial for postoperative use of octreotide in patients undergoing PD. Patients with soft pancreas and pancreatic duct ality(P = 0.727).Conclusions: Octreotide did not reduce postoperative morbidities, reoperation and mortality rate. Also, it did not affect the incidence of POPF and its clinically relevant variants.

关键词： Pancreaticoduodenectomy Postoperative pancreatic fistula Octreotide Periampullary tumor

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Idiopathic steno-occlusive disease with bilateral internal carotid artery occlusion:A Case Report

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World Journal of Clinical Cases 2023年第13期11卷 3076-3085页

作者： Sherifa Ahmed Hamed hosam Abozaid Yousef Department of Neurology and Psychiatry Assiut UniversityFaculty of MedicineAssiut 71516AssiutEgypt Department of Radiology Assiut UniversityFaculty of MedicineAssiut 71516AssiutEgypt

BACKGROUND Moyamoya disease(MMD)is a rare cause of acute stroke and transient ischemic attacks in *** described clinical,diagnostic features and follow-ups of a young child with acute *** SUMMARY We report a 4-year-old girl with left hemiparesis after an acute ischemic *** history was also significant for repeated left or right focal motor seizures,generalized tonic-clonic convulsions and transient ischemic *** magnetic resonance imaging and computed tomography(CT)of the brain and magnetic resonance angiography,CT angiography and venography on the cerebral vessels revealed evidence of bilateral fronto-parietal ischemic infarctions,occlusion of the right and left internal carotid arteries started at its bifurcation and non-visualization of right and left anterior and middle cerebral *** was evidence of progression in angiography manifested as development of collaterals from the basal perforating vessels,increase in the extent of large intracranial arterial stenosis/occlusion and extensive collateral circulation with predominance from the posterior *** and neurological evaluation and comprehensive laboratory investigations excluded an obvious comorbid disease or risk factor for the child’s *** diagnosis of MMD was highly suggested as a cause of the child’s steno-occlusive *** was treated symptomatically with levetiracetam,an antiepileptic *** was prescribed for secondary *** clinical manifestations were improved during the three years of *** surgery was *** Up to our knowledge,this is the first report for MMD in a child in our *** clinical improvement and the stabilization of the child’s condition over the 3 years of follow-up could be attributed to the rapid and extensive recruitment of collaterals and absence of risk factors or *** surgery is highly recommended.

关键词： Steno-occlusive disease Moyamoya disease Internal carotid artery Collateral circulation Neovascularization Case report

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