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Search Results: 1 - 10 of 249 matches for " Samer Elshora "
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Lumbar Disc Herniation in Pediatric  [PDF]
Mostafa Abd Elsamea, Mohamed Shaban, Ahmed Taha, Samer Elshora
Open Journal of Modern Neurosurgery (OJMN) , 2018, DOI: 10.4236/ojmn.2018.82019
Abstract: Lumbar disc herniation is a common complaint among adults with degenerated lumbar intervertebral discs, however its incidence in childhood and adolescence is abundant. Findings recommended that pediatric lumbar disc herniation is dissimilar in numerous way from that in adults. It was confirmed that pediatric patients respond to conventional management less than adults, also the consequence of the operation continued to be acceptable for at least 10 years after the first surgery even though it seems to decline somewhat. This retrospective study was undertaken to determine the clinical outcome and the feature of lumbar disc prolapse in pediatric patients. 12 patients younger than 18 years were operated for lumbar disc prolapse in the period from 2012-2016. Patients preoperative data and radiological imaging, operative and postoperative follow up were reviewed. 12 patients were included in this study, 10 were male and 2 females, the average age was 15 years (ranging between 12 - 18 years). The average duration of the symptoms was 11 months. The average follow up was 14 months. All patients had a sciatica prior to surgery, 35% had motor deficit, and 60% had parasthesia. Conservative treatment failed in all patients. After surgery and follow up, improvement occurs in about 80% of patients, ranging from excellent to good, and 20% of patients with fair outcome. According to Pain Visual Analogue Scale, leg pain reduced from 90 - 30 and back pain from 80 - 35. Conclusion: Pediatric lumbar disc herniation is an uncommon object leading to hospitalization. About 0.1% - 0.2% of children and adolescence surgery for lumbar disc herniation in pediatric does not lead to chronic back pain or interfere with physical activity and is related to the excellent short consequence.
Insulin therapy in critically ill patients
Samer Ellahham
Vascular Health and Risk Management , 2010, DOI: http://dx.doi.org/10.2147/VHRM.S14203
Abstract: sulin therapy in critically ill patients Review (6108) Total Article Views Authors: Samer Ellahham Published Date December 2010 Volume 2010:6 Pages 1089 - 1101 DOI: http://dx.doi.org/10.2147/VHRM.S14203 Samer Ellahham Samer Ellahham and Associates, Falls Church, VA, USA Abstract: Hyperglycemia frequently occurs with acute medical illness, especially among patients with cardiovascular disease, and has been linked to increased morbidity and mortality in critically ill patients. Even patients who are normoglycemic can develop hyperglycemia in response to acute metabolic stress. An expanding body of literature describes the benefits of normalizing hyperglycemia with insulin therapy in hospitalized patients. As a result, both the American Diabetes Association and the American College of Endocrinology have developed guidelines for optimal control of hyperglycemia, specifically targeting critically ill, hospitalized patients. Conventional blood glucose values of 140–180 mg/dL are considered desirable and safely achievable in most patients. More aggressive control to <110 mg/dL remains controversial, but has shown benefits in certain patients, such as those in surgical intensive care. Intravenous infusion is often used for initial insulin administration, which can then be transitioned to subcutaneous insulin therapy in those patients who require continued insulin maintenance. This article reviews the data establishing the link between hyperglycemia and its risks of morbidity and mortality, and describes strategies that have proven effective in maintaining glycemic control in high-risk hospitalized patients.
Molecular mechanisms of hyperglycemia and cardiovascular-related events in critically ill patients: rationale for the clinical benefits of insulin therapy
Samer Ellahham
Clinical Epidemiology , 2010, DOI: http://dx.doi.org/10.2147/CLEP.S15162
Abstract: lecular mechanisms of hyperglycemia and cardiovascular-related events in critically ill patients: rationale for the clinical benefits of insulin therapy Review (3377) Total Article Views Authors: Samer Ellahham Published Date December 2010 Volume 2010:2 Pages 281 - 288 DOI: http://dx.doi.org/10.2147/CLEP.S15162 Samer Ellahham Paragon Cardiovascular Foundation, Falls Church, VA, USA Abstract: Newly recognized hyperglycemia frequently occurs with acute medical illness, especially among patients with cardiovascular disease (CVD). Hyperglycemia has been linked to increased morbidity and mortality in critically ill patients, especially when it is newly recognized. Increased rates of reinfarction, rehospitalization, major cardiovascular events, and death in CVD patients have also been found. An expanding body of literature describes the benefits of normalizing hyperglycemia with insulin therapy in hospitalized patients. This article reviews several underlying mechanisms thought to be responsible for the association between hyperglycemia and poor outcomes in critically ill patients and those with cardiovascular events, as well as the biologic rationale for the benefits of insulin therapy in these patients.
Evaluating Customer Process to Contribute to Customer Acquisition: A Quantitative Study in Jordanian Banking Sector
Samer Alhawari
IBIMA Business Review , 2012,
Abstract: Over the past few years, banks are increasingly realizing the significance of customers’ service; one of the key challenges for them is how to improve the relationship with customers. On any given business day, significant amounts of information fuel business processes that involve parties both inside and outside of enterprise network boundaries. In response, many banks have increasingly recognized the importance of managing customer acquisition from a process approaches’ perspective to assure positive impact on customer acquisition.This paper takes on a holistic approach that examines the combined effects of customer processes (Customer Relation, Customer attraction, Customer Knowledge Capture and Customer data Analysis) on customer acquisition. Drawing on this, the framework develops several hypotheses regarding the main interaction effects of customer processes on customer acquisition. Testing of these hypotheses is based on a sample of the data collected from two hundred respondents, drawn randomly from four Jordanian Banks working in the Customer Relationship Management (CRM) area.The results of the survey show that the four selected factors (Customer Relation, Customer attraction, Customer Knowledge Capture and Customer data Analysis) have a significant impact on customer acquisition. Additionally, the Quantitative evidence from the survey offers further support for this finding. The emerging empirical findings will certainly help both researchers and practitioners in future customer process and Customer acquisition research. The contribution of the paper consists in establishing the need for researching and incorporating customer acquisition process as an important support to keep organizations competitive within the global business environment.
Medicine in Jordan: A Cross-Cultural Elective Experience
Samer Dabbo
University of Toronto Medical Journal , 2009, DOI: 10.5015/utmj.v87i1.1218
Abstract:
LEISURE GARDENS, SECULAR HABITS: THE CULTURE OF CREATION IN OTTOMAN DAMASCUS
Samer AKKACH
Middle East Technical University Journal of the Faculty of Architecture , 2010,
Abstract:
Molecular mechanisms of hyperglycemia and cardiovascular-related events in critically ill patients: rationale for the clinical benefits of insulin therapy
Samer Ellahham
Clinical Epidemiology , 2010,
Abstract: Samer EllahhamParagon Cardiovascular Foundation, Falls Church, VA, USAAbstract: Newly recognized hyperglycemia frequently occurs with acute medical illness, especially among patients with cardiovascular disease (CVD). Hyperglycemia has been linked to increased morbidity and mortality in critically ill patients, especially when it is newly recognized. Increased rates of reinfarction, rehospitalization, major cardiovascular events, and death in CVD patients have also been found. An expanding body of literature describes the benefits of normalizing hyperglycemia with insulin therapy in hospitalized patients. This article reviews several underlying mechanisms thought to be responsible for the association between hyperglycemia and poor outcomes in critically ill patients and those with cardiovascular events, as well as the biologic rationale for the benefits of insulin therapy in these patients.Keywords: hyperglycemia, diabetes, cardiovascular disease, critical illness, insulin
Canonical Transformations and Hamiltonian Evolutionary Systems
Samer Ashhab
Mathematics , 2005,
Abstract: In many Lagrangian field theories one has a Poisson bracket defined on the space of local functionals. We find necessary and sufficient conditions for a transformation on the space of local functionals to be canonical in three different cases. These three cases depend on the specific dimensions of the vector bundle of the theory and the associated Hamiltonian differential operator. We also show how a canonical transformation transforms a Hamiltonian evolutionary system and its conservation laws. Finally we illustrate these ideas with three examples.
Variable depth KDV equations and generalizations to more nonlinear regimes
Samer Israwi
Mathematics , 2009,
Abstract: We study here the water-waves problem for uneven bottoms in a highly nonlinear regime where the small amplitude assumption of the Korteweg-de Vries (KdV) equation is enforced. It is known, that for such regimes, a generalization of the KdV equation (somehow linked to the Camassa-Holm equation) can be derived and justified by A. Constantin, D. Lannes "The hydrodynamical relevance of the Camassa-Holm and Degasperis-Processi equations" when the bottom is flat. We generalize here this result with a new class of equations taking into account variable bottom topographies. Of course, the many variable depth KdV equations existing in the literature are recovered as particular cases. Various regimes for the topography regimes are investigated and we prove consistency of these models, as well as a full justification for some of them. We also study the problem of wave breaking for our new variable depth and highly nonlinear generalizations of the KDV equations.
Sur l'existence d'une catégorie ayant une matrice strictement positive donnée
Samer Allouch
Mathematics , 2008,
Abstract: The Leinster matrix corresponding to a finite category has entries counting the number of morphisms between objects. A first question is to know which positive integer matrices come from at least one finite category. Here, that question will be answered when the entries are strictly positive.
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