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Search Results: 1 - 10 of 161495 matches for " Mahoud H. El Shoieby "
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Surgical and Radiological Assessment of Small Intestinal Neoplasms  [PDF]
Ahmed A. S. Salem, Mahoud H. El Shoieby, Amr F. Mourad, Amr F. Mourad, Hosam El-Din Galal Mohammad
Journal of Cancer Therapy (JCT) , 2016, DOI: 10.4236/jct.2016.72011
Abstract: Purpose: To highlight the role of multi-detector computed tomography in evaluation of small intestinal neoplastic lesions. Patient and Methods: Thirty patients suspected to have small bowel neaoplasms were examined with 64 MDCT and underwent surgical exploration. Result: Contrast enhanced MDCT enterography easily diagnosed twenty patients with small intestinal neoplasms which were confirmed with surgical exploration and histopathological results. Conclusions: Our study has been proved that MDCT can be used as a front-line imaging modality for detection of small bowel neoplasms, regarding its ability to show intraluminal, mural and extraintestinal lesions with their characteristic density and features to successfully differentiate between the different neoplasms and sometimes stage them. However, operative exploration with curative resection or biopsy is still the confirmatory diagnostic method.
Gastrointestinal Stromal Tumors (GISTs), Surgical Management and Clinical Outcome  [PDF]
Ahmed A. S. Salem, Mahoud H. Elshoieby, Doaa W. Maximos, Tarek M. El-Saba
Journal of Cancer Therapy (JCT) , 2016, DOI: 10.4236/jct.2016.74034
Abstract: Introduction: This study investigated the incidence, surgical management and outcome of Gastrointestinal Stromal Tumors (GIST) in Upper Egypt. Methods: A retrospective review of all GIST patients admitted a South Egypt Cancer Institute between Jan. 2010 and Dec. 2015 was conducted. Patients’ demographics, clinical presentation, tumor characteristics, radiological, pathological and immunohistochemical findings, surgical procedures, recurrence and mortality were recorded. Results: A total of 36 GIST patients were identified, stomach was the most common site (27.8%) followed by the small intestine (19.4%) and the large intestine (16.7%). The mean age at time of diagnosis as 52.8 ± 14.4 (ranged from 17 to 76 years). Of these 36 cases, 20 (55.6%) cases were males and 16 (44.4%) cases were females with a ratio of 1.2:1. About 22 cases (61.1%) presented with primary tumors, eight cases (22.2%) had primary tumors and metastases, three cases (8.35) presented with recurrent mass, whereas one case (2.2%) presented either with recurrent mass and metastases or metastases only. The majority of cases (22) had tumorsize >5 cm. Patients were stratified as high, intermediate, low and very low risk (50.6%, 30.6%, 11.1% and 2.8%, respectively). Almost all the cases were surgically managed and 75% were completely resectable. During follow up (average 26.5 months), 22 patients showed complete recovery, 7 had recurrent or metastatic disease and 2 died due to liver metastasis. Conclusion: The incidence of GIST in Upper Egypt is apparently low. Surgical resection is the preferred choice of treatment. The demographic data of GIST patients in South Egypt Cancer institute were similar to those published in the literature. Other prospective studies are required to assess the prognosis and the effect of treatment.
Comparison of the Predictive Value of Antral Follicle Count, Anti-Müllerian Hormone and Follicle-Stimulating Hormone in Women Following GnRH-Antagonist Protocol for Intracytoplasmic Sperm Injection  [PDF]
Shahinaz H. El-Shorbagy
Open Journal of Obstetrics and Gynecology (OJOG) , 2017, DOI: 10.4236/ojog.2017.74045
Abstract: Background: Prediction of ovarian response is one of the prerequisites for women undergoing intracytoplasmic sperm injection (ICSI) treatment prior to the first controlled ovarian stimulation (COS) cycle. Predictive factors may be variable in patients pre-treated with oral contraceptives (OC) for scheduling purposes. Objective: To evaluate antral follicle count (AFC), anti-müllerian hormone (AMH) and basal follicle stimulating hormone (FSH) for predicting ovarian responses in patients under controlled ovarian hyperstimulation randomized to receive either oral contraceptives (OC) or no treatment (non-OC) prior to their first controlled ovarian stimulation (COS) cycle. Study Design: One hundred infertile women randomized to receive OC treatment or no treatment, prior to their first COS cycle; were stimulated with Gonadotropin Releasing Hormone (GnRH) antagonist protocol. During the early follicular phase (day 2) of the two subsequent cycles (cycle A & cycle B) sonographic (AFC, ovarian volume) and endocrine data (AMH, basal FSH) were recorded. Transvaginal ultrasound was performed for all patients to monitor the ovarian response. Total number of oocytes retrieved and number of generated embryos were recorded and patients were categorized according to retrieved oocytes as poor (oocytes < 5), normal (oocytes 5 - 12) or high responders (oocytes > 12). Result(s): AFC, AMH and basal FSH were lower in users than in non-users of hormonal contraception. Poor responders showed less number of oocytes retrieved and had lower AFC and AMH but a higher basal FSH level was recorded in both groups (OC and non-OC). Conclusion: The better predictive value of AMH or AFC, as a single test or in combination will prevent cycle cancellations due to too low or too high ovarian response. AMH in OC group is not affected by OC pretreatment and is superior to other parameters, while AFC is superior to AMH and basal FSH in non-OC group.
A Simple and Convenient Synthesis of Isolated-Fused Heterocycles Based on: 2-Imino-N-phenyl-2H-chromene-3-carboxamide  [PDF]
Islam H. El Azab, Fawi M. Abd El Latif Abd El Latif
Open Journal of Synthesis Theory and Applications (OJSTA) , 2012, DOI: 10.4236/ojsta.2012.13008
Abstract: Starting from 2-imino-N-phenyl-2H-chromene-3-carbox-amide, (1) a series of functionalized chromenes were achieved; such as, 2-ethoxy-2,3-dihydro-3-phenylchromeno[2,3-d]pyrimidin-4-one (2), and 2-hydrazinyl-2,3-dihydro-3-phenylchromeno-[2,3-d]pyrimidin-4-one (3). Furthermore, reactions of (3) with some of laboratory available compounds gave pyrazoles (4-9, 12, 13a, 13b), tetrazoles (11), 2-(2-benzylidenehydrazinyl)-3-phenyl-3H-chromeno[2,3-d]pyrimidin4(10H)-oneisoxazoles (14), 5-chloro-1-(4-oxo-3-phenyl-4,10-dihydro-3H-chromeno[2,3-d]pyrimidin-2-yl)-3-phenyl-2, 3-dihydro-1H-pyrazole-4-carbonitrile (17), pyrimidines (28a, b), pyridines (29a-29e, 30, 33a, 33b), benzo[b][1, 4]oxazepin-2- amines (32a, b), 3-chloro-4-(2-imino-2H-chromen-3-yl)-1-phenyl-4-(phenylamino) azetidin-2-one (34a-34e) and 2-(2- imino-2H-chromen-3-yl)-3-phenyl-2-(phenyl amino)thiazolidin-4-onee (35a-35e). The structures of these compounds were established by elemental analysis, IR, MS and NMR spectral analysis.

 

Motes percentage and ginning outturn as affected with cotton cultivar and location  [PDF]
HossamEl-Din H. El-Feky
Agricultural Sciences (AS) , 2010, DOI: 10.4236/as.2010.11006
Abstract: The present study was conducted to analyze cotton cultivar and location differences in motes, and to determine the relationships among these and ginning outturn. Therefore, the seed cotton of five promising hybrids namely; G.77 × Pima S6 and G.84 × (G.74 × G.68) growing in [Kafr El-Sheikh - Kafr El-Dawar - Etay El-Barood - Damietta], G.89 × Pima S6 growing in [El-Sharkia - El-Gharbiya - El-Dakahliya - El-Monofiya], G.83 × (G.75 × 5844) × G.80 and G.90 × Australian growing in [Sohag - El-Minia - Beni-Sueif - El-Faium] were used in this study. The results obtained indicate that the varieties exhibited different behavior responses to environmental conditions. On the whole, environmental factors associated with differences in place of growth, appeared to have much more influence on the number of motes than did varietal factors. Most of the locks for the promising hybrids at the different locations tend to cluster around the mean of 6 or 7 seeds per lock. There is a fairly marked tendency for the lock index, lint weight and lint percentage to decrease as the motes percentage increase. On the other hand, most of the promising hybrids under study tend to increase in the seed index as the motes percentage increase. However, the increasing in seed index as a result of the increasing in motes percentage for some cotton cultivars growing at different environments could be explain the difference in behavior for these cotton cultivars in lint percentage.
Geochemical Siliceous and Silicified Facies of Phosphate Series of Ouled Abdoun Basin (Morocco)  [PDF]
H. El Haddi, A. Benbouziane, M. Mouflih
Open Journal of Geology (OJG) , 2014, DOI: 10.4236/ojg.2014.47022
Abstract:

Syn-sedimentary post-diagenetic phenomena are remarkable in Moroccan phosphates. Indeed they are reference deposits for geological study, where important interests are given of determination and identification of these geochemical phenomena. Silicification is one of the phenomena that we have studied to determine the diagenetic processes that control the new-formation of silica in phosphate series of Ouled Abdoun. This study was performed on deposit EL Halassa, which belongs to the Ouled Abdoun Basin; they spread out the Maastrichtian to Lutetian. At first, petrographic approach was applied on different terms composing the phosphate series. In a second step, a geochemical approach on the same silica and silicified facies of phosphate series Ouled Abdoun Basin for characterizing silicification deduced the probable links between this diagenetic phenomenon and facies and forms’ affect. Ten major trace elements were measured. According to the phases’ petrographic relationship, the results were presented and discussed: silicate phase, the carbonate phase and clay phase.

Accuracy of Fine Needle Aspiration Cytology of Solitary Thyroid Nodules in Tertiary versus Community Hospital  [PDF]
H. M. El Hennawy, H. O. Abu Zaid, Imaad Bin Mujeeb, Eihab A. El Kahlout, El S. M. Bedair
Surgical Science (SS) , 2013, DOI: 10.4236/ss.2013.411096
Abstract:

Background: Fine needle aspiration cytology (FNAC) is considered as the gold standard diagnostic test for the diagnosis of solitary thyroidnodules (STN). Aim: To compare the accuracy of FNAC in diagnosis of thyroid nodules in Al Khor community hospital versus that of tertiary hospital (Hamad General Hospital) in Qatar. Methods: Retrospective, descriptive and comparative study of 320 patients of any age group and both sexes who have thyroid nodules and are subjected to surgical treatment [160 patients from Al Khor community hospital (group A) and 160 patients from Hamad General Hospital (group B)] during the period from May 2005 to Dec 2012. Each group was subdivided into free hand FNAC (done by physicians) and ultrasonography guided FNAC. All samples were prepared in the same histopathology laboratory and interpreted by the same histopathology team. Results: Free hand FNAC in group A and group B achieved a sensitivity of (10% vs. 50%), specificity of 93% in both groups, positive predictive value of (25% vs. 17%), negative predictive value of (82% vs. 98%), and a total accuracy of (82% vs. 94%) respectively, while

Late rising right ventricular pacing lead threshold four yearsafter implantation of a dual chamber pacemaker  [PDF]
H. Zaky, H. El Zein, A. Al-Mulla
Open Journal of Internal Medicine (OJIM) , 2011, DOI: 10.4236/ojim.2011.11001
Abstract: Late rising in pacing threshold is an uncommon complication of permanent pacing. Treatment with high dose systemic steroid could spare the patient another procedure. We report a case of late rising pacing threshold that responded to high dose sys-temic steroid which lowered the pacing threshold to one volt, then rose again to around 2 volts.
On the Dynamics of a Higher-Order Difference Equation
H. El-Metwally
Discrete Dynamics in Nature and Society , 2012, DOI: 10.1155/2012/263053
Abstract: This paper deals with the investigation of the following more general rational difference equation:
Study of the parameters affecting ion beam emerging from cold conical cathode ion source
El- Khabeary, H.;
Brazilian Journal of Physics , 2010, DOI: 10.1590/S0103-97332010000300013
Abstract: the aim of this work is study of the parameters affecting ion beam emerging from cold conical cathode ion source. the input discharge and output ion beam characteristics have been measured at different pressures using nitrogen and argon gases. the optimum distance between the ion exit aperture of the cathode and the movable copper ion collector plate has been determined using nitrogen and argon gases. the ion collector plate has been placed at different distances from the ion exit aperture of the cathode equal to 2, 3, 4, 4.5, 5, 5.5 and 6 cm respectively. it is found that the optimum distance between the ion exit aperture of the cathode and the ion collector plate equals 5 cm for high output ion beam current. at this optimum distance, the efficiency of the ion source reaches 28.3% and 21.3% using nitrogen and argon gases respectively. the divergence angle of the ion beam exit from the cathode aperture has been determined for each distance by measuring the ion beam diameter which obtained on the ion collector plate. it is found that at the optimum distance between the ion exit aperture of the cathode and the ion collector plate, a minimum divergence angle of the ion beam emerging from the ion source equal to 1.14o and 2.29o using nitrogen and argon gases respectively. also the aspect ratio of the ion source, the ratio between the radius of the ion exit aperture of the cathode to the distance between the ion exit aperture of the cathode and ion collector plate, has been determined.
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