Publications by authors named "Osama Awad"

Article Synopsis
  • Upper respiratory tract infections and unilateral sinusitis are more common in children, prompting a study comparing pediatric cases (≤18 years) with adult cases (>18 years) to analyze differences in disease characteristics.
  • The study involved 124 patients, revealing that children often have antrochoanal polyps and allergic fungal sinusitis, while adults primarily suffer from chronic sinusitis without nasal polyps.
  • Pediatric patients show quicker onset of symptoms, higher incidence of proptosis, and greater severity evident on CT scans, highlighting the need for early diagnosis and intervention to prevent complications.
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Background: Malaria vector control activities in Sudan rely largely on Long-Lasting Insecticidal Nets (LLINs), Indoor Residual Spray (IRS) and Larval Source Management (LSM). The present study attempted to determine cost effectiveness of inputs and operations of vector control interventions applied in different environmental settings in central and eastern Sudan, as well as their impact.

Methods: The inputs utilized and cost of each vector control activity, operational achievements and impact of the applied malaria vector control activities; IRS, LLINs and LSM were determined for eight sites in Al Gazira state (central Sudan) and Al Gadarif state (eastern Sudan).

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Objective: Allergic rhinitis (AR) is a common disease with a recent increasing in prevalence. Traditional treatment strategies of AR, sometimes, show limited effectiveness and side effects. Intranasal injection of Botulinum toxin type A (BTX-A) and multiple postganglionic parasympathectomy of pterygopalatine ganglion (PPG) are among the increasingly used alternative treatment options of AR.

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The chemical composition of cypress, lavender, lemon eucalyptus, and tea tree oils has been investigated using gas chromatography/mass spectrometry (GC/MS). These oils were tested for larvicidal activity against Culex pipiens alongside their nanoemulsions (NEs) and conventional emulsifiable concentrates (ECs). Oil-in-water (O/W) NEs preparation was based on a high-energy ultra-sonication technique.

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Background: The growing threat of vector-borne diseases and environmental pollution with conventional pesticides has led to the search for nanotechnology applications to prepare alternative products.

Methods: In the current study, four pyrethroid insecticides include alpha-cypermethrin, deltamethrin, lambda-cyhalothrin, and permethrin were incorporated into stable nanoemulsions. The optimization of nanoemulsions is designed based on the active ingredient, solvent, surfactant, sonication time, sonication cycle, and sonication energy by factorial analysis.

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Article Synopsis
  • Rhinoscleroma (RS) is a chronic disease caused by Klebsiella Rinoescleromatis, primarily affecting the nasal mucosa and can lead to complications in the larynx and trachea.
  • The study aimed to detail the various nasal and laryngeal presentations of RS in endemic Egypt and encourage doctors to consider RS when they encounter unexplained nasal or laryngeal issues.
  • Out of 100 patients, most exhibited typical nasal signs, but only a small percentage showed typical laryngeal symptoms; however, there was a significant relationship between nasal and laryngeal findings, indicating the need for awareness of atypical presentations.
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Purpose: Health concerns around cannabis (marijuana) use have focused on the possible relationship with psychosis and lower airway health, however; the effect of cannabis smoking on upper airway health has received less attention. The aim of this study is to investigate difference between exclusive tobacco cigarettes smoking compared with tobacco plus cannabis smoking regarding severity of chronic rhinosinusitis (CRS).

Material And Methods: A prospective cross-sectional study with two groups of CRS patients recruited (Group 1: tobacco cigarettes smokers; 100 patients and group 2: tobacco cigarettes smokers and also cannabis users; 100 patients).

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Objective: The aim of this study was to compare pulmonary function tests (PFTs) among control subjects and patients with chronic rhinosinusitis (CRS) and to investigate the outcomes of endoscopic sinus surgery (ESS) on PFTs among patients with CRS.

Study Design: Prospective study conducted from June 2015 to June 2016.

Setting: Tertiary referral hospital.

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Pesticides occupy a critical position among many chemicals to which man can be exposed; their diffusion into the environment causes killing and damaging of some forms of life. The lack of highly selective pesticide action represents risk both for man and other desirable forms of life present in the environment. The present study was designed to evaluate the relation between exposure to pesticides and disorder on hematological parameters and kidney function of male agricultural workers with the mean age 37.

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There are few reported efforts to define universal disaster response performance measures. Careful examination of responses to past disasters can inform the development of such measures. As a first step toward this goal, we conducted a literature review to identify key factors in responses to 3 recent events with significant loss of human life and economic impact: the 2003 Bam, Iran, earthquake; the 2004 Indian Ocean tsunami; and the 2010 Haiti earthquake.

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Different mixtures of monoterpenes (ketone, alcohol, and alkene) were loaded on paper discs and wax and their knockdown activities were evaluated against adults. Some individual monoterpenes were also evaluated by residual toxicity technique. Citronella oil as a reference was also loaded separately or in combination with monoterpenes on paper discs and wax.

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Efficacy of spinosad and malathion loaded in eco-friendly biodegradable formulations was evaluated for controlling larvae. Malathion (organophosphorus larvicide) and spinosad (naturally derived insecticide) were loaded on chitosan/alginate/gelatin capsules. Capsules were characterized by size measurement, scanning electron microscopy, Fourier transform infrared spectroscopy, and water uptake.

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Background: Rhinoscleroma is a chronic granuloma that is endemic in Egypt and is caused by gram-negative bacilli (Klebsiella rhinoscleromatis). The nasal mucosa is affected in almost all cases, which causes nasal obstruction, anosmia, and epistaxis. The disease usually passes through an atrophic stage (atrophic rhinitis) and a granulomatous stage before ending in the fibrotic stage, with possible bone destruction.

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Background: Rhinoscleroma is a chronic granuloma that is endemic in Egypt and is caused by gram-negative bacilli (Klebsiella rhinoscleromatis). The nasal mucosa is affected in almost all cases, which causes nasal obstruction, anosmia, and epistaxis. The disease usually passes through an atrophic stage (atrophic rhinitis) and a granulomatous stage before ending in the fibrotic stage, with possible bone destruction.

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Importance: The main objective in the treatment of chronic otitis media is to relieve drainage and to rehabilitate hearing. Various materials can be used to repair the tympanic membrane (TM) through different tympanoplasty techniques.

Objective: To assess the results of endoscopic type I tympanoplasty in pediatric patients using tragal cartilage as a grafting material.

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To assess the value of using the intranasal septal splint after partial inferior turbinectomy (PIT) surgery. Prospective, randomized comparative study. The study was conducted over a period of 2 years from January 2012 to January 2014 at Minia University hospital, Minia, Egypt.

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Objectives/hypothesis: Aspirin-sensitivity, asthma, and nasal polyposis (NP) comprise the clinical entity of Samter's triad. The aim of this study is to report the sinonasal outcomes of endoscopic sinus surgery (ESS) in treating NP in asthmatic patients, comparing aspirin-induced asthmatic (AIA) patients with aspirin-tolerant asthmatics (ATA).

Study Design: Retrospective chart review.

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Background: Certain diseases affect both upper and lower airways. Aspirin-induced asthma (AIA) is a clinical entity characterized by asthma, nasal polyposis, and aspirin intolerance. To understand the response of the lower airway to surgical treatment of the sinuses, we examined asthma outcomes in AIA compared with a second group of aspirin-tolerant asthmatic (ATA) patients to establish if there were any differences between the two groups after endoscopic sinus surgery (ESS).

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