Publications by authors named "Nasr W"

This qualitative study seeks to explore the perspectives of Emirati ICU teams on environmental sustainability, identifying the challenges they face, and exploring potential opportunities to make healthcare practice more sustainable. The study thereby contributes to addressing the research gap on reducing impacts of resource-intensive care environments by exploring how ICU teams perceive and approach environmental sustainability in their practice. A descriptive qualitative design was utilized, involving semi-structured interviews with 19 ICU nurses and nurse managers and 5 ICU physicians.

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Rapid and uncontrolled urbanization in sub-Saharan Africa has led to an increased production and expansion of synthetic chemicals, resulting in significant pollution of the aquatic environments, particularly by Emerging Organic Contaminants (EOCs). Due to the low income of the population in this region, there is often a lack of control over water and fishery resources prior to consumption. Therefore, the current study aims to use EOCs as markers of water resource quality degradation, and to assess the potential environmental risk of these compounds on some aquatic organisms.

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With the neo-metamorphosis of the residential landscape worldwide and sluggish sanitation strategies in urban environments, rudimentary on-site sanitation systems remain commonly used, especially in developing countries, despite the risks of groundwater contamination. The effective management of such water resources relies on assessment of the sensitivity of anthropized aquifers to man-made impact, including groundwater behavioural alteration, in terms of both quality and quantity. Associated with tracking of changes in land use, this study proposes an approach involving emerging organic contaminants (EOCs) as indicators of the alteration of groundwater balance due the exposure of shallow aquifers to the risks of infiltration of untreated wastewater from soak pits.

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Background: The growing prevalence of dementia is a global concern, especially in the Arab world, where updated economic impact data are scarce. Understanding its prevalence and cost is crucial for effective policies and support systems.

Aims: To estimate dementia prevalence and cost in Arab countries for 2021.

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The disorders known as bone marrow failure syndromes (BMFS) are life-threatening disorders characterized by absence of one or more hematopoietic lineages in the peripheral blood. Myelodysplastic syndromes (MDS) are now considered BMF disorders with associated cellular dysplasia. BMFs and MDS are caused by decreased fitness of hematopoietic stem cells (HSC) and poor hematopoiesis.

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Diabetes mellitus (DM) is a growing health issue that has been reaching epidemic proportions in the recent years. Low intake of some nutrients like vitamin D may increase the risk of gestational diabetes mellitus (GDM). This study was to investigate the association between the dietary intake of Vitamin D and GDM among women in the Eastern Region of Saudi Arabia.

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Nicotinamide (NAM) a form of vitamin B3, is an essential precursor of NAD. This dinucleotide (pyridine nucleotide) participates in the regulation of fundamental processes including transcription, cell cycle progression and DNA repair. Here we assessed the effect of NAM on myeloid differentiation of the IL-3 dependent, multipotent hematopoietic progenitor cell line FDCP-Mix.

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To determine the impact of using otoendoscopy at the time of primary surgery of cholesteatoma in identifying hidden "cholesteatoma remnant". Study was prospective study. Setting was University tertiary care hospital.

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Despite the high frequency of the zygomaticomaxillary complex (ZMC) fractures, there is no consensus among facial reconstructive surgeons regarding the best surgical management; thus, surgical choice for ZMC fractures is still challenging. This study included 40 patients with displaced ZMC fracture. Twenty patients were treated with open reduction and internal fixation (OR/IF) using two-point fixation technique (at infraorbital margin and zygomaticofrontal buttress region) and the remaining 20 patients were treated with OR/IF using three-point fixation technique (at frontozygomatic suture, infraorbital margin, and zygomatico maxillary buttress).

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The main goal of surgery of cholesteatoma is eradication of the disease and revision surgery is indicated when a dry and safe ear has not been achieved. Residual cholesteatoma usually occurs at the sites that are difficult to reach with an operating microscope, such as posterior tympanum and anterior epitympanic recess. Computed tomography can be performed to delineate the extent of disease.

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 Allergic rhinitis (AR) affects up to 40% of the population and results in nasal itching, congestion, sneezing, and clear rhinorrhea.  This study aimed to evaluate the changes in the clinical symptoms and in the level of serum interleukin (IL)-33 before and after pollen immunotherapy (IT) in patients with AR.  The total symptom score and the levels of total immunoglobulin E (IgE) and IL-33 were determined in the serum of 10 non-allergic healthy controls and 45 patients with AR who were equally divided into 3 groups: GI (patients did not receive IT), GII (patients had received IT for 6 months) and GIII (patients had received IT for 2 years).

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 Canal wall down (CWD) mastoidectomy has many drawbacks, including chronic otorrhea not responding to medications, granulations, dizziness on exposure to cold or hot water, and tendency of debris accumulation in the mastoid cavity, demanding periodic cleaning. Many of these problems can be solved by reconstruction of the posterior meatal wall (PMW).  To assess the results of PMW reconstruction after CWD mastoidectomy for cholesteatoma using titanium mesh and platelet-rich plasma (PRP) mixed with bone pate.

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This study aimed to evaluate the operative outcomes of using gastric pull-up (GPU), pectoralis major myocutaneous flap (PMMF), and jejunal free flap (JFF) to reconstruct the hypopharynx after resection of hypopharyngeal and cervical esophageal carcinoma. Retrospective clinical study. Otolaryngology Department, Zagazig University Hospital, Egypt and Surgical Department, National Cancer Institute, Cairo, Egypt.

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The preferred method for revascularization of symptomatic infrapopliteal arterial occlusive disease (IPAD) has traditionally been open vascular bypass. Endovascular techniques have been increasingly applied to treat tibial disease with mixed results. We evaluated the short-term outcome of percutaneous infrapopliteal intervention and compared the different techniques used.

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Purpose: Symptomatic atherosclerotic disease of the popliteal artery presents challenges for endovascular therapy. We evaluated the technical success, complications, and midterm outcomes of atherectomy and angioplasty involving the popliteal segment.

Methods: We conducted a retrospective review of outcomes of popliteal artery intervention using atherectomy or angioplasty performed between 2003 and 2008.

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The authors report a case of popliteal vein aneurysm (PVA) in a healthy patient who presented with symptoms and review the literature. A 40-year-old healthy male presented with hypoxia secondary to pulmonary emboli. He underwent diagnostic tests revealing a suprageniculate saccular PVA, which was treated by aneurysmectomy and lateral venorrhaphy.

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Background: Bilaterality of congenital diaphragmatic pathologies is well documented in the English literature. Nevertheless, ipsilateral simultaneous congenital diaphragmatic pathologies, though rare, are worth revisiting to shed more light into their embryology and management.

Methods: A review of the literature for reported cases of multiple ipsilateral congenital diaphragmatic pathologies was performed.

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Background: Patients with heart disease are frequently maintained on a regimen of aspirin. During cardiac surgery aspirin-induced platelet dysfunction increases the risk of bleeding.

Methods: The files of 82 patients who had undergone open-heart surgery were selected to study the efficacy of the low-dose (2 million KIU) aprotinin regimen in decreasing blood loss and transfusion requirements for patients receiving aspirin.

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Between June 1994 and June 1996, we performed a 24-hour oesophageal pH monitoring in 116 adult patients. A retrospective analysis of the data is hereby presented. The principal indications include a chronic cough, recurrent laryngitis and noncardiac chest pain.

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101 cases classified as inflammatory bowel disease at the Hôtel-Dieu de France Hospital between 1982 and 1994 were investigated. Files containing a sure diagnosis and complete clinical and biological investigations were included. 65 files were retained for the study: 48 cases had ulcerative colitis (UC), 17 had Crohn's disease (CD).

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Between 1976 and 1983, the authors studied 50 new patients affected with periodic disease. 16 of them-mean age: 29-presented muscular manifestations. They may be grouped into two clinical aspects: muscular pain and contractures.

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A young unmarried Lebanese woman presenting with periodic disease (familial paroxysmal polyserositis) since she was 3 months old developed recurrent abundant ascites at the age of 21 years. Several hundred millilitres of strongly eosinophilic fluid were evacuated. Exploratory laparotomy unexpectedly disclosed an encapsulating peritonitis with adhesions involving the small bowel and the ascending colon; there were masses of lipid-laden cells, clusters of cholesterol/crystals and marked mesoepithelial reaction.

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On the basis of well defined diagnostic criteria, the authors conclude that periodic disease affects males in particular. It commences before the age of 20 years in 80 percent of cases. In particular it occurs in Armenian and Shiite communities.

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Study of the mode of hereditary transmission of familial paroxystic polyserositis in Lebanon led us to conclude that the disease was transmitted in a dominant fashion. In almost one third of our families, dominant transmission was certain or probable. In the other families, dominant heredity was not excluded if the hypothesis, supported by many facts, of incomplete penetrance is accepted.

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