Publications by authors named "Abdullah M Alotaibi"

Screening donated blood for transfusion-transmitted infections (TTIs) is a critical component of transfusion safety, particularly in high-demand regions such as Makkah City, Saudi Arabia. This study is aimed at assessing the seroprevalence of TTI markers among blood donors at King Abdulaziz Hospital-Makkah (KAHM) over a 7-year period. In this retrospective study, 17,661 individuals who donated blood at the KAHM, Saudi Arabia, from January 2017 to December 2023, were included.

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Hallucinations are often associated with alterations in brain activation, particularly in language-related and sensory processing areas. Existing models suggest different frameworks for understanding the relationship between brain activation and hallucination proneness, yet practical evidence supporting these models remains limited. This study investigates the neural correlates of hallucination proneness in healthy individuals through functional MRI (fMRI) tasks focusing on both auditory and visual processing, including voice and text comprehension, face recognition, and audio-visual stimuli.

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Background: Hallucinations, including both auditory and visual forms, are often associated with alterations in brain structure, particularly in specific language-related cortical areas. Existing models propose different frameworks for understanding the relationship between brain volume and hallucination proneness, but practical evidence supporting these models is limited.

Methods: This study investigated the relationship between hallucination proneness and brain volume in language-related cortical regions, specifically the superior temporal gyrus and Broca's area.

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Energy generation today heavily relies on the field of photocatalysis, with many conventional energy generation strategies now superseded by the conversion of solar energy into chemical or thermal energy for a variety of energy-related applications. Global warming has pointed to the urgent necessity of moving away from non-renewable energy sources, with a resulting emphasis on creating the best photocatalysts for effective solar conversion by investigating a variety of material systems and material combinations. The present study explores the influence of morphological changes on the photoelectrochemical activity of zinc oxide nanostructures by exploiting electrodeposition and capping agents to control the growth rates of different ZnO facets and obtain well-defined nanostructures and orientations.

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Article Synopsis
  • The study analyzed the agreement of TI-RADS scores between sonographers and radiologists in assessing suspicious thyroid nodules and evaluated the diagnostic accuracy of these scores against histological results.
  • Results showed moderate agreement overall (κ = 0.504) but poor agreement for nodule margins (κ = 0.102). Both groups had high sensitivity (100%), but sonographers had better specificity (44.6%) compared to radiologists (29.3%).
  • The findings suggest potential benefits of involving sonographers in initial assessments, while future research should focus on reducing scoring variability and exploring a broader range of TI-RADS categories for better clinical application.
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Objective: To explore the relationship between Oxygenation Index (OI) and Oxygen Saturation Index (OSI) among infants with Congenital Diaphragmatic Hernia (CDH), both within the first 24 h after birth and in extended observations in those who survived until their surgical intervention.

Methods: Seven- years retrospective review of CDH cases at a single Level III neonatal intensive care unit. The correlations of various combinations of OI-OSI pairs were assessed using the Spearman's rho Correlation Coefficient.

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Background and objective Academic dishonesty or misconduct among nursing students is a crucial concern within educational institutions. In nursing education, academic dishonesty hinders the development of knowledge and skills among students, thereby jeopardizing both patient safety and the effectiveness of clinical practice. This study aimed to assess the prevalence and forms of academic dishonesty among nursing students in Saudi Arabia.

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Numerous neurodegenerative diseases result from altered ion channel function and mutations. The intracellular redox status can significantly alter the gating characteristics of ion channels. Abundant neurodegenerative diseases associated with oxidative stress have been documented, including Parkinson's, Alzheimer's, spinocerebellar ataxia, amyotrophic lateral sclerosis, and Huntington's disease.

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(1) Background: Colorectal cancer is the third most common type of cancer with a high mortality rate and poor prognosis. The accurate prediction of key genetic mutations, such as the KRAS status, tumor staging, and extramural venous invasion (EMVI), is crucial for guiding personalized treatment decisions and improving patients' outcomes. MRI radiomics was assessed to predict the KRAS status and tumor staging in colorectal cancer patients across different imaging platforms to improve the personalized treatment decisions and outcomes.

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Traumatic atlantoaxial rotatory subluxation (AARS) is a condition that is extremely rare in adults when compared to the pediatric population. The most common symptoms of this condition are torticollis and post-traumatic neck pain. Our patient is a 41-year-old male who presented to the emergency room within hours of the injury.

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Background: Myogenic Arthrogryposis Multiplex Congenita type 3 (AMC-3), is a rare congenital condition characterized by severe hypotonia, club feet, and multiple joint contractures often affecting both arms and legs which start prior to birth.

Case Presentation: We report a full-term neonate born to first-degree cousins from fourth-generation consanguineous families, who had with antenatal history of reduced fetal movements. At birth, he was noticed to have bilateral club feet, arthrogryposis, severe hypotonia, and absent deep tendon reflexes.

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Introduction:  The 2020 world pandemic caused by the novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was initially reported in December 2019 in Wuhan, China, which has since then spread globally. Several studies on patients with coronavirus disease 2019 (COVID-19) describe a high risk of pulmonary embolism (PE). The majority of PEs in patients with COVID-19 were in the segmental arteries.

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We report two cases of children presenting with clinical and radiological findings suggestive of acute appendicitis. Both patients underwent appendectomy and were subsequently diagnosed with multisystem inflammatory syndrome in children (MIS-C). Histopathology revealed reactive lymphoid follicle hyperplasia in one patient and acute appendicitis in the other.

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Objective To measure total blood loss and safety of tourniquets, tourniquets during cementation, or no tourniquets during total knee arthroplasty (TKA). Methods This retrospective cohort study included 75 patients from King Khalid University Hospital in Riyadh, Saudi Arabia. Patients were equally divided into three groups: tourniquets, no-tourniquets, and tourniquets during cementation.

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Objectives: To assess how clinical services are accessed and utilized by young children with suspected autism spectrum disorder (ASD) and identifying factors that prevent the early identification of developmental concerns and diagnosis.

Methods: This retrospective study examined the sociodemographic and clinical characteristics of a convenience sample of children diagnosed with ASD at the Center for Autism Research, Riyadh, Saudi Arabia between 2016 and 2018. The characteristics of ASD assessment and intervention service use were examined.

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Background: Coinfection with bacteria, fungi, and respiratory viruses in SARS-CoV-2 is of particular importance due to the possibility of increased morbidity and mortality. In this meta-analysis, we calculated the prevalence of such coinfections.

Methods: Electronic databases were searched from 1 December 2019 to 31 March 2021.

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We explore a series of Zn and N codoped TiO thin films grown using chemical vapor deposition. Films were prepared with various concentrations of Zn (0.4-2.

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Introduction: Heart failure (HF) has high morbidity and mortality rates. Spironolactone has shown a 30% reduction in all-cause mortality, reduction in hospitalizations, and sudden death. However, data shows low use of spironolactone in HF patients.

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The emergence of antibiotic resistant bacteria is a major threat to the practice of modern medicine. Photobactericidal agents have obtained significant attention as promising candidates to kill bacteria, and they have been extensively studied. However, to obtain photobactericidal activity, an intense white light source or UV-activation is usually required.

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Multifunctional thin films which can display both photocatalytic and antibacterial activity are of great interest industrially. Here, for the first time, we have used aerosol-assisted chemical vapor deposition to deposit highly photoactive thin films of Cu-doped anatase TiO on glass substrates. The films displayed much enhanced photocatalytic activity relative to pure anatase and showed excellent antibacterial (vs and ) ability.

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Internal jugular vein thrombosis (IJVT) is an unusual case of vascular disease of the upper limb veins, that could result in multiple complications if left untreated. IJVT can be subdivided into primary and secondary. Primary IJVT is when the thrombosis happens to someone without known risk factors, while secondary IJVT is when it happens to a person with previous risk factors.

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Type I heterojunction films of α-Fe O /ZnO are reported here as a non-titania based photocatalyst, which shows remarkable enhancement in the photocatalytic properties towards stearic acid degradation under UVA-light exposure (λ=365 nm), with a quantum efficiency of ξ=4.42±1.54×10 molecules degraded/photon, which was about 16 times greater than that of α-Fe O , and 2.

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We report a 26-year-old man who presented to the emergency department four times within a 4-year period with recurrent myocarditis. His presentations were characterized by chest pain, elevated troponin I, and normal coronary angiography. Endomyocardial biopsy showed nonspecific inflammatory process.

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The antibacterial properties of a Cu-ZrO film grown via aerosol assisted chemical vapour deposition are presented. The composite film showed high activity against E. coli (Gram-negative) and S.

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Purpose: Self-medication is common worldwide. However, the prevalence of sale of prescription medications without prescription and the quality of assessment and counselling provided by community pharmacists to cardiac patients is unknown. We sought to determine the prevalence of prescription medication sales and explore how pharmacists assess and counsel patients with acute cardiac conditions.

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