Publications by authors named "Nader Alharbi"

In this report, we discuss a rare case of pleomorphic adenoma in the accessory parotid gland of a 39-year- old male, which is generally a difficult tumor to manage because of the danger of facial scarring and nerve injury from external incisions. A minimally invasive trans-oral surgical technique was used, resulting in a successful resection without the usual complications, demonstrating a promising option that focuses on cosmetic and functional benefits. The importance of complete preoperative evaluations is emphasized, as is the possibility for broader applicability with additional study, establishing the technique's efficacy to improve outcomes for patients in similar circumstances.

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Neuroendocrine tumors (NETs) are usually found in the gastrointestinal tract and pancreas; however, they are rare in the middle ear. The presentation of vague symptoms, such as tinnitus and conductive hearing loss, complicates the diagnosis. We present a 46-year-old male with a history of right ear discharge and a previous canal wall-down mastoidectomy, suspected to have cholesteatoma recurrence.

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Article Synopsis
  • - The study investigates potential health risks associated with mobile phone use, focusing on how radiofrequency electromagnetic (RF-EM) exposure might affect heart function, specifically looking at electrocardiograms (ECGs) and heart rate variability (HRV) due to changes in blood pressure and body mass index (BMI).
  • - Researchers analyzed data from 20 healthy males and used a sophisticated multivariate approach, including the one-sample Hotelling test, to assess differences in key cardiac variables (P-R, QRS, QT, ST, and HR) after exposure to mobile phone EMFs at various body locations.
  • - Findings indicated significant changes in ECG intervals and heart rate after initial EMF exposure, regardless of participant BMI, suggesting
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Peripheral nerve sheath tumors (PNSTs), while uncommon, can have a significant impact on appearance and quality of life, especially when they form in prominent areas such as the nose dorsum. We discuss a case of a 29-year-old woman who developed a benign PNST on the right side of her nasal ala. This tumor gradually grew, impairing her face appearance.

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This case report details a complex case of parotid gland sialolithiasis with stones adherent to the facial nerve, a scenario that presents a significant surgical challenge. Traditional sialendoscopy failed to address the condition in a 23-year-old female patient, leading to the adoption of a combined endoscopic transcutaneous approach. This method successfully resolved the condition without intraoperative complications, maintaining intact facial nerve function postoperatively.

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Introduction Voice is a crucial tool for communication, and voice problems are more likely to occur in professionals who frequently use their voice for work. Teachers, whose profession requires sustained vocal use, are particularly susceptible to occupation-related voice disorders. This study aimed to quantify the prevalence of voice disorders among teachers in Saudi Arabia, with the general population serving as a control group, and to identify associated risk factors.

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Introduction:  Smokeless tobacco (SLT) stands out for its higher nicotine absorption and its role in preventable fatalities. The Global Adult Tobacco survey in Saudi Arabia revealed SLT usage, while past legislation restricted its use. Linking SLT consumption to oral cancer and oral mucosal ulcers, the study addresses its prevalence in head and neck malignancies.

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Article Synopsis
  • Musculoskeletal disorders (MSDs) significantly impact healthcare workers worldwide, with shoulder and neck pain prevalent due to the demanding nature of their jobs.
  • A study conducted in Saudi Arabia surveyed 409 healthcare workers to assess the prevalence and intensity of these pains, revealing that 29.3% experienced high-intensity pain with neck pain being slightly more common than shoulder pain.
  • The findings suggested a strong correlation between pain intensity and chronic diseases among healthcare workers, highlighting the need for further research to explore underlying causes and risk factors.
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Background: This study aimed to determine the prevalence and associated factors of intestinal parasitic infections (IPIs) among patients referred from different primary healthcare centers (PHC) in Riyadh, Kingdom of Saudi Arabia.

Material & Methods: A cross-sectional retrospective study conducted at Riyadh Regional Laboratory (RRL). All stool samples that are requested for intestinal parasite detection by physicians from PHCs across the Riyadh Region during year 2020 are referred to the RRL.

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Background: : HPLC is one of the most important tools for accurate diagnosis of hemoglobinopathies and thalassemias. The advantage of the HPLC system is the excellent resolution, reproducibility &quantification of several normal and abnormal hemoglobin.

Results: BIO RAD Variant II analyzer was used.

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Background: Infectious disease is one of the main issues that threatens human health worldwide. The 2019 outbreak of the new coronavirus SARS-CoV-2, which causes the disease COVID-19, has become a serious global pandemic. Many attempts have been made to forecast the spread of the disease using various methods, including time series models.

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The empirical distribution of the eigenvalues of the matrix XX(T) divided by its trace is evaluated, where X is a random Hankel matrix. The distribution of eigenvalues for symmetric and nonsymmetric distributions is assessed with various criteria. This yields several important properties with broad application, particularly for noise reduction and filtering in signal processing and time series analysis.

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