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Endoscopic resection of superficial bowel neoplasia:The unmet needs in the Egyptian practice

World Journal of Gastrointestinal Endoscopy 2022年第4期14卷 235-249页

作者： Mohamed H Emara Mariam Zaghloul Haidi Karam-Allah Ramadan Salem Youssef Mohamed mohammed tag-adeen Ahmed Alzamzamy Mohamed Alboraie Ahmad Madkour Ahmed Youssef Altonbary Tarik I Zaher Ahmed Abo Elhassan Nermeen Abdeen mohammed Hussien Ahmed Department of Hepatology Gastroenterology and Infectious DiseasesKafrelsheikh UniversityKafr Elshiekh 33516Egypt Department of Tropical Medicine and Gastroenterology Assiut UniversityAssiut 71515Egypt Department of Internal Medicine Faculty of MedicineGastroenterology and Hepatology UnitZagazig UniversityZagazig 44519Egypt Division of Gastroenterology and Hepatology Department of Internal MedicineSouth Valley UniversityQena Faculty of MedicineQena 83523Egypt Department of Gastroenterology and Hepatology Maadi Armed Forces Medical ComplexMilitary Medical AcademyCairo 11841Egypt Department of Internal Medicine Al-Azhar UniversityCairo11884Egypt Department of Endemic Medicine Helwan UniversityCairo 11795Egypt Department of Gastroenterology and Hepatology Mansoura UniversityMansoura 35516Egypt Department of Tropical Medicine Zagazig UniversityZagazig 44519Egypt Department of Tropical Medicine Suez Canal UniversityIsmailia 41522Egypt Department of Tropical Medicine Alexandria UniversityAlexandria 21526Egypt

BACKGROUND Management of superficial bowel neoplasia(SBN)in early stages is associated with better *** last few decades experienced a paradigm shift in the management of SBN with the introduction of advanced endoscopic resection techniques(ERTs).However,there are no clear data about the aspects of ERTs in Egypt despite the growing gastroenterology *** To investigate the knowledge,attitude,and practice of ERTs toward management of SBN among Egyptian practitioners and the suitability of the endoscopy units’infrastructures toward these *** An online 2-pages questionnaire was *** first page comprised demographic data,and questions for all physicians,about the knowledge(11 questions)of and attitude(5 questions)toward ERTs as a therapeutic option for *** second page investigated the practice of ERTs by endoscopists(6 questions)and the infrastructures of their endoscopy units(14 questions).The survey was disseminated through July 2021 and the data were collected in an excel sheet and later analyzed *** The complete responses were 833/2300(36.2%).The majority of the participants were males(n=560,67.2%),middle-aged(n=366,43.9%),consultants(n=464,55.7%),gastroenterologists(n=678,81.4%),spending≥15 years in practice(n=368,44.2%),and were working in university hospitals(n=569,68.3%).The majority correctly identified the definition of SBN(88.4%)and the terms polypectomy,endoscopic mucosal resection(EMR),and endoscopic submucosal dissection(ESD)(92.1%,90.2%,and 89.1%respectively).However,26.9%,43.2%and 49.5%did not recognize the clear indication of polypectomy,EMR,and ESD *** 68.1%of physicians are convinced about the ERTs for management of SBN;only 8.9%referred all candidate cases for *** 76.5%of endoscopists had formal training in the basic polypectomy techniques while formal training for EMR and ESD was encountered only in 31.9%and 7.2%*** 71.6%and 88.4%of endoscopists did not per

关键词： Endoscopic submucosal dissection Endoscopic mucosal resection Polypectomy Superficial bowel neoplasia Egypt

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Treatment Modalities for Post Corrosive Esophageal Strictures: 5 Years Experience

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Open Journal of Gastroenterology 2018年第11期8卷 394-404页

作者： Mohamed Abdelshafy Mohamed Hasan Sedeek Mahmoud mohammed tag-adeen Department of General Surgery Faculty of Medicine South Valley University Qena Egypt Department of Tropical Medicine and Gastroenterology Faculty of Medicine South Valley University Qena Egypt Department of Internal Medicine Faculty of Medicine South Valley University Qena Egypt

Background: Management of post-corrosive esophageal strictures represents a major challenge for clinicians. There are many options for treatment as dilatation alone or dilatation with injection of corticosteroids, stent placement, and surgery. The aims of the study: This is a retrospective study to assess the success rate of different treatment modalities for post-corrosive esophageal stricture including: endoscopic dilatation, stenting or surgery and to define any complications. Methods: Clinical and endoscopic data for patients with post-corrosive esophageal stricture admitted to the endoscopy unit between September 2012 and September 2017 were collected. Retrospective analysis of data was done to detect the types of treatment, success rate and any detectable complications. Results: A total of 50 patients with their ages ranged between 3 and 20 years were included in this study. Male patients represented 54% (27 patients) and females were 23 (46%). The cause of caustic material ingestion was mainly accidental (47 patients, 94%) and only 3 patients were suicidal (6%). Dilatation was successful in most cases either with or without injection of corticosteroids (39 patients, 78%). Stenting was a good option in cases of refractory or recurrent dilatations (11 patients;22%) with excellent results. Surgery rarely needed (only in one patient) and only when dilatation and stenting failed. Conclusions: Endoscopic treatment of post-corrosive esophageal stricture has a good result and low rate of complications. The covered self-expandable metal stent (SEMS) is a good option in cases of refractory strictures, surgery rarely needed and after failure of previous modalities.

关键词： Post-Corrosive Esophageal Stricture Caustic Ingestion Endoscopic Treatment

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Non-Alcoholic Fatty Liver Disease as a Coronary Heart Disease Severity Predictor

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International Journal of Clinical Medicine 2020年第4期11卷 182-192页

作者： Hossam Ismael mohammed tag-adeen Ahmed Abdel-Rady Mohamed Shazly Ahmed Hussein Department of Internal Medicine Faculty of Medicine South Valley University Qena Egypt Department of Radio-Diagnosis Al-Azhar University Assiut Egypt Department of Radio-Diagnosis Al-Azhar University Cairo Egypt Department of Internal Medicine Faculty of Medicine Sohag University Sohag Egypt

Background and Aim: Association of non-alcoholic fatty liver disease (NAFLD) and liver related mortality is well-known;however;its cardiovascular risk remains questionable. The aim of this work was to highlight the association between NAFLD and the severity of coronary heart disease. Method: The study was conducted between July and December 2019 at Qena university hospital, Qena, Egypt on patients who were scheduled for coronary angiography. Liver steatosis was diagnosed using FibroScan and the severity of coronary artery occlusion was assessed by Gensini score calculation. Statistical analysis was done to study the correlation between liver steatosis and angiography findings. Result: A total of 100 patients were included, mean age 48 years (±8 SD). Correlation between coronary angiography and the baseline variables revealed statistically significant positive correlation between Gensini score and ALT (p = 0.002), FBS (p Conclusion: NAFLD is an independent cardiovascular risk predictor with statistically significant increase in Gensini score with the higher grades of NAFLD.

关键词： NAFLD FibroScan Gensini Score

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Role of Serum Glypican-3 in the Diagnosis of Hepatocellular Carcinoma in the Upper Egypt

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Open Journal of Gastroenterology 2018年第11期8卷 415-423页

作者： Ali Abdelrahman Ghweil Ashraf Khodeary mohammed tag-adeen Marwa El-Sayed Khaled Shahat Ghada Abdelrazek Department of Tropical Medicine and Gastroenterology Faculty of Medicine South Valley University Qena Egypt Department of Clinical Pathology Faculty of Medicine Sohag University Sohag Egypt Department of Internal Medicine Faculty of Medicine South Valley University Qena Egypt Department of Medical Microbiology and Immunology Faculty of Medicine South Valley University Qena Egypt Department of Internal Medicine Faculty of Medicine Al-Azhar University Cairo Egypt Department of Diagnostic Radiology Faculty of Medicine South Valley University Qena Egypt

Background and Aim: Early diagnosis of hepatocellular carcinoma (HCC) is essential for achieving good prognosis. Glypican 3 (GPC3) has been reported to be raised in HCC in comparison with non-neoplastic lesions. This work aimed to study the role of GPC3 in the early diagnosis of HCC in post-chronic hepatitis C (CHC) cirrhotic patients. Patients and Methods: A comparative study included 60 patients, 40 patients with HCC (HCC group) and 20 patients of CHC without HCC (control group). Diagnosis of HCC was based on abdominal ultrasound and triphasic CT, while biopsy was performed in debating cases. Serum samples for measurement of GPC3 and AFP levels were obtained from all participants. Results: The median levels of both AFP and GPC3 were significantly higher among HCC cases compared to controls. Analysis of the ROC curve showed that both AFP and GPC3 could be used to differentiate HCC cases from controls. AUROCs of GPC3 and AFP were 0.928 and 0.727 respectively, and both were statistically significant with p-values Conclusion: Serum GLP-3 is highly sensitive and specific for detecting HCC, more than AFP for the early detection of HCC, and the combination of both yielded improved sensitivity.

关键词： Hepatocellular Carcinoma Alpha Fetoprotein Glypican-3

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Role of endoscopic ultrasound in the characterization of solid pseudopapillary neoplasm of the pancreas

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World Journal of Gastrointestinal Endoscopy 2023年第4期15卷 273-284页

作者： Katarzyna M Pawlak Nadeem Tehami Ben Maher Shujaath Asif Krishn Kant Rawal Daniel Vasile Balaban mohammed tag-adeen Fahd Ghalim Wael A Abbas Elsayed Ghoneem Khaled Ragab Mahmoud El-Ansary Shanil Kadir Sunil Amin Keith Siau Anna Wiechowska-Kozlowska Klaus Mönkemüller Dalia Abdelfatah Abeer Abdellatef Sundeep Lakhtakia Hussein Hassan Okasha Endoscopy Unit Department of GastroenterologyHospital of The Ministry of Interior and AdministrationSzczecin 01-218Poland Interventional Endoscopy Unit University Hospital Southampton NHS Foundation Trust3AX POUnited Kingdom Consultant Gastroenterologist AIG HospitalsHyderabad 500032India Department of Gastroenterology Prime Institute of Digestive SciencesRajkot 360001India Department of Gastroenterology Central Military Emergency University HospitalCarol Davila University of Medicine and PharmacyBucharest 010011Romania Division of Gastroenterology and Hepatology Department of Internal MedicineQena Faculty of MedicineSouth Valley UniversityQena 83511Egypt Department of Endoscopy Shefa Al-Orman HospitalLuxor 85951Egypt Interventional Endoscopy Unit Sainte Marie HospitalOSNY 95520France Department of Internal Medicine Gastroenterology UnitFaculty of MedicineAssuit UniversityAssuit 71511Egypt Department of Gastroenterology and Hepatology Faculty of MedicineMansoura UniversityMansoura 35511Egypt Department of Hepatology and Gastroenterology Theodor Bilharz Research InstituteGiza 12511Egypt Department of Hepatology&Gastroenterology Theodor Bilharz Research InstituteGiza 12511Egypt Department of Gastroenterology Liaquat National Hospital&Medical CollegeKarachi 75900Pakistan

BACKGROUND Solid pseudopapillary neoplasm(SPN)is an uncommon pathology of the pancreas with unpredictable malignant *** ultrasound(EUS)assessment plays a vital role in lesion characterization and confirmation of the tissue ***,there is a paucity of data regarding the imaging assessment of these *** To determine the characteristic EUS features of SPN and define its role in preoperative *** This was an international,multicenter,retrospective,observational study of prospective cohorts from 7 large hepatopancreaticobiliary *** cases with postoperative histology of SPN were included in the *** collected included clinical,biochemical,histological and EUS *** One hundred and six patients with the diagnosis of SPN were *** mean age was 26 years(range 9 to 70 years),with female predominance(89.6%).The most frequent clinical presentation was abdominal pain(80/106;75.5%).The mean diameter of the lesion was 53.7 mm(range 15 to 130 mm),with the slight predominant location in the head of the pancreas(44/106;41.5%).The majority of lesions presented with solid imaging features(59/106;55.7%)although 33.0%(35/106)had mixed solid/cystic characteristics and 11.3%(12/106)had cystic *** was observed in only 4(3.8%)*** pancreatic duct dilation was uncommon,evident in only 2 cases(1.9%),whilst common bile duct dilation was observed in 5(11.3%)*** patient demonstrated a double duct sign at *** and Doppler evaluation demonstrated inconsistent appearances with no emergence of a predictable *** guided biopsy was performed using three different types of needles:Fine needle aspiration(67/106;63.2%),fine needle biopsy(37/106;34.9%),and Sonar Trucut(2/106;1.9%).The diagnosis was conclusive in 103(97.2%)***-seven patients were treated surgically(91.5%)and the post-surgical SPN diagnosis was confirmed in all *** the 2-year

关键词： Solid pseudopapillary neoplasm SPN Frantz tumor Endoscopic ultrasound features EUSguided biopsy Fine needle aspiration/biopsy

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Smartphone-Based Wi-Fi Analysis for Bus Passenger Counting

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Computers, Materials & Continua 2024年第4期79卷 875-907页

作者： mohammed Alatiyyah Department of Computer Science College of Computer Engineering and SciencesPrince Sattam Bin Abdulaziz UniversityAl-Kharj16278Saudi Arabia

In the contemporary era of technological advancement,smartphones have become an indispensable part of individuals’daily lives,exerting a pervasive *** paper presents an innovative approach to passenger countingonbuses throughthe analysis ofWi-Fi signals emanating frompassengers’mobile *** study seeks to scrutinize the reliability of digital Wi-Fi environments in predicting bus occupancy levels,thereby addressing a crucial aspect of public *** proposed system comprises three crucial elements:Signal capture,data filtration,and the calculation and estimation of passenger *** pivotal findings reveal that the system demonstrates commendable accuracy in estimating passenger counts undermoderate-crowding conditions,with an average deviation of 20%from the ground truth and an accuracy rate ranging from 90%to 100%.This underscores its efficacy in scenarios characterized by moderate levels of ***,in densely crowded conditions,the system exhibits a tendency to overestimate passenger numbers,occasionally doubling the actual *** acknowledging the need for further research to enhance accuracy in crowded conditions,this study presents a pioneering avenue to address a significant concern in public *** implications of the findings are poised to contribute substantially to the enhancement of bus operations and service quality.

关键词： Public transportation digital environment passenger estimation signal capturing Wi-Fi

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EECLP: AWireless Sensor Networks Energy Efficient Cross-Layer Protocol

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Computers, Materials & Continua 2024年第8期80卷 2611-2631页

作者： mohammed Kaddi mohammed Omari Moamen Alnatoor LDDI Laboratory University of AdrarAdrar01000Algeria Computer Science and Engineering Department School of EngineeringAmerican University of Ras Al KhaimahRas Al Khaimah72603United Arab Emirates

Recent advancements in wireless communications have allowed the birth of novel wireless sensor networks(WSN).A sensor network comprises several micro-sensors deployed randomly in an area of interest.A micro-sensor is provided with an energy resource to supply electricity to all of its ***,the disposed energy resource is limited and battery replacement is generally *** this restriction,the sensors must conserve energy to prolong their *** energy conservation strategies for WSNs have been presented in the literature,from the application to the physical *** of these solutions focus only on optimizing a single layer in terms of energy *** this research,a novel cross-layer technique for WSNs’effective energy usage is *** most energy consumption factors exist in the Medium Access Control(MAC)layer and network layer,our EECLP protocol(Energy Efficient Cross-Layer Protocol for Wireless Sensor Networks)integrates these two layers to satisfy energy efficiency *** gain access to the transmission channel,we implement a communication regime at the MAC layer based on CSMA/CA(Carrier Sense Multiple Access/Collision Avoidance)***,depending on the activity and a standby period,we employ the RTS/CTS(Request to Send/Clear to Send)method to prevent collisions and resolve hidden node concerns by utilizing the network allocation vector(NAV)to calculate the transmission *** a greedy strategy,we establish chains amongst cluster members to mitigate the issue of high energy consumption in routing *** objective function was utilized to determine the optimal cross-chain path based on the distances to the base station(BS)and residual energy(RE).The simulation,testing,and comparison of the proposed protocol to peer protocols have shown superior outcomes and a prolonged network *** the suggested protocol,the network lifetime increases by 10%compared to FAMACO(Fuzzy and Ant Col

关键词： WSN energy consumption MAC layer network layer EECLP energy-efficient lifespan

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Barriers for resuming endoscopy service in the context of COVID-19 pandemic:A multicenter survey from Egypt

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World Journal of Gastroenterology 2020年第43期26卷 6880-6890页

作者： Omar Elshaarawy Sameh Aldesoky Lashen Nahed A Makhlouf Doaa Abdeltawab Mariam Salah Zaghloul Rasha M Ahmed Hayam Fathy Shimaa Afifi Muhammad Abdel-Gawad Eman Abdelsameea Sherief Abd-Elsalam Salem Youssef Mohamed mohammed tag-adeen Mina Tharwat Ahmed Alzamzamy Ahmed Nasr Bekhit Alshaimaa M Eid Abeer Awad Mohamed-Naguib Wifi Mohammad Aamr Waleed A Abd El Dayem Mohamed Alboraie Department of Hepatology Gastroenterology and Liver TransplantationNational Liver InstituteMenoufia UniversityShebine Elkom 32511Egypt Department of Internal Medicine and Center of Alcohol Research and Liver Diseases Salem Medical CenterHeidelberg UniversityHeidelberg 69121Germany Department of Internal Medicine Faculty of MedicineUniversity of AlexandriaAlexandria 21521Egypt Department of Tropical Medicine and Gastroenterology Faculty of MedicineAssiut UniversityAssiut 71515Egypt Department of Hepatology Gastroentrology and Infectious DiseasesKafrelsheikh UniversityFaculty of MedicineKafrelsheikh 33565Egypt Department of Internal Medicine Faculty of MedicineAssiut UniversityAssiut 71515Egypt National Hepatology and Tropical Medicine Research Institute Cairo 11638Egypt Department of Hepatology Gastroenterology and Infectious DiseasesFaculty of MedicineAl-Azhar UniversityAssiut 71524Egypt Department of Tropical Medicine and Infectious Diseases Faculty of MedicineTanta UniversityTanta 31527Egypt Department of Internal Medicine Gastroenterology and Hepatology UnitFaculty of MedicineZagazig UniversityZagazig 44519Egypt Department of Internal Medicine Gastroenterology UnitQena Faculty of MedicineSouth Valley UniversityQena 83523Egypt Department of Tropical Medicine and Gastroenterology Faculty of MedicineAswan UniversityAswan 81528Egypt Department of Gastroenterology and Hepatology Military Medical AcademyCairo 11771Egypt Department of Tropical Medicine Zagazig General HospitalZagazig 42511Egypt Department of Hepatology and Gastroenterology and Infectious Disease Faculty of MedicineAlAzhar UniversityCairo 11562Egypt Department of Internal Medicine Faculty of MedicineCairo UniversityCairo 11759Egypt Department of Hepatology and Gastroentorolgy Shebin Elkom Teaching HospitalShebine Elkom 3521Egypt Department of Tropical Medicine Faculty of MedicineZagazig UniversityZagazig 44519Egypt Department of Internal Medicine Al-Azhar UniversityCairo 11651Egypt

BACKGROUND The current coronavirus disease 2019(COVID-19)pandemic has affected routine endoscopy service across the gastroenterology *** led to the suspension of service provision for elective *** To assess the potential barriers for resuming the endoscopy service in *** A national online survey,four domains,was disseminated over a period of 4 wk in August *** primary outcome of the survey was to determine the impact of the COVID-19 pandemic on the endoscopy service and barriers to the full resumption of a disabled center(s).RESULTS A hundred and thirteen Egyptian endoscopy centers participated in the *** waiting list was increased by≥50% in 44.9% of areas with clusters of COVID-19 cases(n=49)and in 35.5% of areas with sporadic cases(n=62).Thirty nine(34.8%)centers suffered from staff shortage,which was considered a barrier against service resumption by 86.4% of centers in per-protocol *** multivariate analysis,the burden of cases in the unit locality,staff shortage/recovery and the availability of separate designated rooms for COVID-19 cases could markedly affect the resumption of endoscopy practice(P=0.029,tage/recovery and the availability of COVID-19 designed rooms are the most important barriers against *** working hours and dividing endoscopy staff into teams may help to overcome the current situation.

关键词： COVID-19 Endoscopy Practice Pandemic Egypt Barriers

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Numerical investigation of the effects of soil-structure and granular material-structure interaction on the seismic response of a flat-bottom reinforced concrete silo

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Earthquake Engineering and Engineering Vibration 2024年第3期23卷 609-623页

作者： Sonia Benkhellat mohammed Kadri Abdelghani Seghir Laboratory of Solid Mechanics and Systems University of M’Hamed BougaraBoumerdes 35000Algeria Laboratory of Geomaterials Environment and DevelopmentUniversity of M’Hamed BougaraBoumerdes 35000Algeria Research Laboratory of Applied Hydraulics and Environment Faculty of TechnologyUniversity of BejaiaBejaia 06000Algeria

In this work,a numerical study of the effects of soil-structure interaction(SSI)and granular material-structure interaction(GSI)on the nonlinear response and seismic capacity of flat-bottomed storage silos is conducted.A series of incremental dynamic analyses(IDA)are performed on a case of large reinforced concrete silo using 10 seismic *** IDA results are given by two average IDA capacity curves,which are represented,as well as the seismic capacity of the studied structure,with and without a consideration of the SSI while accounting for the effect of *** curves are used to quantify and evaluate the damage of the studied silo by utilizing two damage indices,one based on dissipated energy and the other on displacement and dissipated *** cumulative energy dissipation curves obtained by the average IDA capacity curves with and without SSI are presented as a function of the base shear,and these curves allow one to obtain the two critical points and the different limit states of the *** is observed that the SSI and GSI significantly influence the seismic response and capacity of the studied structure,particularly at higher levels of ***,the effect of the SSI reduces the damage index of the studied structure by 4%.

关键词： reinforced concrete silo perfectly matched layers soil-structure interaction granular material-structure interaction effective seismic input method damage index

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Kaoline-based catalyst for a high stability desulfurization of sour heavy naphtha in a three-phase oscillatory baffled reactor

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Particuology 2024年第1期84卷 249-260页

作者： Hassan M.Hmood Saba A.Gheni Safaa M.R.Ahmed Mudheher M.Ali Hamid Yonis Saleh mohammed H.mohammed Awad E.mohammed Marwan A.Mahomood Hiba R.mohammed Ahmed A.Hassan Adam Harvey North Refineries Company Ministry of OilIraq Chemical Engineering Department Tikrit UniversityIraq Ministry of Oil Iraq AL-Hawija Technical Institute Northern Technical UniversityMoselIraq School of Engineering Newcastle UniversityUK

To meet the rapidly increasing demand for energy and the dramatic depletion of conventional crude oil,it is imperative to utilize sour *** no coke being produced,oxidative desulfurization(ODS)of naphtha lowers its sulfur content and average molecular *** this article,we outline a method for heavy naphtha non-extractive ODS using a very stable *** technique involves the use of a solid catalyst with oxygen gas as the *** necessitated relatively high mixing intensities;hence a three-phase Oscillatory Baffled Reactor(OBR)was *** catalyst was based on the zeolite ZSM-5,prepared from natural kaolin by a series of delamination and activation steps and impregnated with Fe.A TiO2 nanolayer was applied,using the sol-gel method,to prevent rapid *** reactor performance was evaluated to minimize the sulfur content in the naphtha *** to the protective coating,the sulfur conversion stabilized at 90%.The results of this work establish the use of natural clay-based catalysts in a continuous,three-phase ODS,particularly with regard to proving long-term *** also showed that modest ODS can be achieved using an environmentally friendly oxidant,at mild operating conditions,whilst maintaining stability.

关键词： Natural kaoline Desulfurization Three-phase Oscillatory baffled reactor

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