New Emirates Medical Journal - Volume 5, Issue 1, 2024
Volume 5, Issue 1, 2024
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Prevention of Postoperative Atrioventricular Block in a Case of Progressive Infective Endocarditis with Reconstruction of the Interventricular Fibrous Body: A Case Report
Authors: Taro Kuroda, Ichiro Hayashi, Ichiro Kashima, Eiji Yoshikawa and Natsumi IijimaBackgroundThe risk of the post-operative severe atrioventricular block is high when infective endocarditis spreads to the conduction system. However, a clear surgical method to prevent post-operative severe atrioventricular block in infective endocarditis patients has not been developed.
Case PresentationA 39-year-old man with a persistent fever was referred to our hospital. Echocardiography showed mitral valve infective endocarditis with severe aortic regurgitation due to a congenital bicuspid aortic valve. Before the surgery, a paroxysmal atrioventricular block appeared. Intraoperative inspection revealed an aortic-root abscess with ulcerated lesions below the commissure of the noncoronary-right coronary cusps and perforation of the anterior leaflet of the mitral valve. Considering the risk of atrioventricular block, the ulcerated lesions were only cleared with saline solution. After replacing the mitral valve with a mechanical mitral valve, the interventricular fibrous body and aortic annulus were reconstructed with a bovine pericardial patch. The mechanical aortic valve was sutured to the reconstructed aortic annulus. Two years after the surgery, severe atrioventricular block did not occur.
ConclusionOur method may be effective when the risk of post-operative severe atrioventricular block is high and the patient’s prognosis worsens.
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A Case Report of Fibromyxoid Variant of Nephrogenic Adenoma of Prostatic Urethra: Morphology Mimicking Carcinoma
Authors: Teresa Rovira and Emil SalmoBackgroundNephrogenic adenoma is an uncommon, benign, tumour-like lesion within the urothelial mucosa of the urinary tract caused by reimplantation and proliferation of the renal tubular cells that have been shed by chronic irritation of the mucosa of the urinary tract.
Case StudyWe report a case of the rare fibromyxoid variant of nephrogenic adenoma in the prostate urethra. To the best of our knowledge, only a few cases have been described in the literature.
ConclusionThis tumour can have variable morphological patterns with occasional worrisome features that can mimic carcinoma of the lower urinary tract.
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Domperidone-associated Ventricular Arrhythmia and Sudden Cardiac Death: A Descriptive Literature Review
More LessBackgroundDomperidone is an antiemetic and prokinetic agent that is widely used to treat nausea and vomiting, gastroparesis, and as a galactagogue.
ObjectiveThis review article focuses on QT prolongation, torsades de pointes, severe ventricular arrhythmia, and sudden cardiac death associated with the use of domperidone or domperidone-containing products.
MethodsThe online databases, such as Medline/Pubmed/PMC, Google Scholar, Science Direct, Ebsco, Scopus, Web of Science, Embase, and reference lists, were searched using keywords like Domperidone, Cardiotoxicity, QT prolongation, Cardiac arrhythmia, Torsades de pointes, Ventricular arrhythmia, and Sudden Cardiac Death, to identify published articles relevant to domperidone-associated cardiotoxicity.
ResultsDomperidone has been linked to an increased risk of QT prolongation, torsades de pointes, severe ventricular arrhythmia, and sudden cardiac death, according to a number of epidemiological studies and meta-analyses.
ConclusionDomperidone can only be used to treat nausea and vomiting in patients between the ages of 12 and 60, and a maximum daily dose of 30 mg has been set by a number of regulatory bodies. The risk of severe ventricular arrhythmia and sudden cardiac death caused by domperidone should be made clear to clinicians along with the recommendations from regulatory bodies to avoid any potential complications.
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Autophagy Behavior in Endothelial Cell Dysfunction
More LessAutophagy regulates endothelial cell homeostasis. Autophagy is a catabolic process involving degradation of intracellular components. Dysregulation of autophagy induces endothelial cell dysfunction. Endothelial cell dysfunction is a multifactorial pathophysiological change that occurs at the cellular and subcellular levels. Lipophagy and mitophagy are hallmarks of the pathogenesis of endothelial cell dysfunction. The regulation of the autophagy mechanism involved amino acids, growth factors, hormones, myo-inositol-1,4,5-triphosphate, calpain, calcium, bcl-2, reactive oxygen species, BNIP3, DRAM, p19ARF, FADD and TRAIL. Down-regulation of autophagy reduces endothelial cell resistance to stressful conditions such as shear stress, deprivation of oxidative stress, nutrients deprivation, and hypoxemia. Autophagy optimizes endothelial cell function, increases longevity, slows senescence, and prevents endothelial cell transdifferentiation. Pathophysiologically, autophagy is inhibited in endothelial cells due to mTORC1 repression release. Also, AMPK expression repression downregulates autophagy and subsequently endothelial dysfunction. The paper provides state of art on the current advances in the autophagy role in endothelial cell dysfunction.
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Experimental Animal Models for Preclinical Investigation of the Bladder Cancer
Authors: Sami El Khatib, Maha Krayem, Sanaa Khaled, Abeer Ayoub and Mohamed SallaThe current treatments for bladder cancer are unable to substantially avoid the disease's growth and recurrence, which is a serious public health problem. Researchers have explored a variety of approaches in an effort to effectively replicate the pathophysiology of human tumors using experimental tumor models. The investigation of the available models is a necessary tool in order to choose the most appropriate scheme which serves the translation of potential treatments from a primary experimental bench to the clinical settings. The most suitable murine models of bladder cancer should have excellent reproductivity, intravesical predictability, and accessibility in order to facilitate the mechanistic, chemo-preventive, and therapeutic research that can be expanded into clinical trials. This article provides a complete evaluation of both in vitro and in vivo bladder cancer models, comparing their advantages and limitations in urological research.
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Frequency of Cancer Associated with Children and Adolescents
More LessBackgroundMore than 175,000 new cases of cancer in children are diagnosed every year worldwide.
This study aimed to investigate the recorded cancer frequency in children and adolescents in Isfahan Province, Iran.
As one of the main reasons for death among children and adolescents is reported as cancer with different prevalence worldwide, therefore, reporting the occurrence of cancers in this population is crucial.
MethodsInformation from the years between 2013 to 2015 related to the Surveillance, Epidemiology, and End Results; (SEER) was collected from the Isfahan Cancer Registry. The cancer sites studied were defined according to the International Classification of Diseases and recorded by related topography codes.
ResultsAmong all 30,465 registered cancers, there were 582 cases (2%) of cancer, including 57% of children and 43% of adolescents. The mean ± SD age of patients was 11.5 ± 5.9 years (Min; 1, Max 19). The top four ranked cancers were (n=264; 45%) comprised of; 1) hematopoietic and reticuloendothelial system (n= 122), 2) secondary and unspecified malignant neoplasm of lymph nodes (n=56), 3) malignant neoplasm of the brain (n=43) 4), thyroid gland (n=43). Death-reported data was associated with 32% of the total population studied. The neoplasm was reported in 174 cases, which was associated with 95% death.
ConclusionThis frequency source of children and adolescents cancers could be used for health strategy. The observed variations in the frequency of different cancers require continuous monitoring and investigation. Therefore, plan of health-system should focus based on greater efforts toward advanced evidence-based drug therapy in Isfahan, Iran.
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Factors influencing adherence to Standard Precautions among Nursing Students: A Self-report Study, UAE
Authors: Vimala Edwin, Ramya Kundayi Ravi and Priyalatha MuthuBackgroundStudent nurses are the future healthcare providers. Safe nursing practice is crucial as they often are exposed to multiple infections, including bloodborne pathogens, during their clinical practice.
AimTo assess the factors that influence adherence to standard precautions among nursing students and to find the association between adherence to standard precautions with their selected demographic variables.
MethodsA cross-sectional study was conducted among 103 undergraduate nursing students recruited by convenience sampling technique from a selected health sciences university. Adherence to standard precautions was assessed using a standardized questionnaire, ‘Factors Influencing Adherence to Standard Precautions Scale-Student Version’ (FIASPS-SV). Using SPSS version 23 the data were analysed with descriptive and inferential statistics. Frequency and percentage were used to describe the socio-demographic characteristics. Inferential statistics, namely the Chi-Square test, was used to find out the association between FIASPS-SV and their demographic variables. The P value less than 0.05 was taken as statistically significant.
ResultsThe ‘contextual cues’ was found to be the most influencing factor [Total Mean 21.98(6.148), Range 0-28; Mean Response Range of 3.18(.32), Response Range 1-4] while the factor ‘justification’ was found to be the least influencing factor [Total Mean 7.31(6.1285), Range 0-28; Mean Response Range -1.06 (.23), Response Range 1-4] for the adherence of standard precautions among the study participants. A statistically significant association was found between age and specific factors of ‘Leadership’ & ‘Contextual cues’. Gender was found to be associated with specific factors of ‘Justification’ and ‘Contextual cues.’
ConclusionThe study findings showed that the overall student adherence to standard precautions was good. However, they need to improve in some areas, like wearing gloves when drawing blood or cannulation, following standard precautions when handling needles, and confronting people when they are not adhering to these precautions. The faculty should reinforce and encourage the students to implement standard precaution practices effectively at clinical settings to promote safe practice.
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Pediatric Phagophobia: A Systematic Review and a Case Report of Pharmacological Interventions
Authors: Haidar AlAbdullah, Abdulmohsin Almulhim and Ammar AlbannaBackgroundPhagophobia is characterized by conditioned excessive fear of swallowing or choking that is usually triggered by an incident. It usually leads to avoidance of certain types of food or, in severe forms, a complete refusal to eat solid food and/or liquids. The condition is commonly associated with physical and psychological symptoms impacting the health condition of the individual due to deprivation of essential nutrients.
Case PresentationA 12-year-old boy developed acute onset fear of swallowing (Phagophobia) following a dream he had of someone choking. This was exacerbated by watching an online video of a person choking. This has led to an avoidance of solid food and dependence on soft food and liquids. Fear of swallowing along with food avoidance has led to malnutrition, weight loss, and several physical complaints for which the patient was admitted under pediatric care. A course of Cognitive Behavioral Therapy (CBT) resulted in limited response and was augmented with fluoxetine. Full remission was achieved within six weeks.
MethodsA systematic review of all peer-reviewed English literature was performed for articles related to the pharmacological treatment of pediatric phagophobia (0-18 years) following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines.
ResultsA total of 17 case reports were identified describing 17 children with phagophobia (females = 70%). The mean age was 9.3 and the average was between 2 and 15 years who were diagnosed with choking phobia/ phagophobia or different but equivalent diagnoses like Avoidant/Restrictive Food Intake Disorder or Post Traumatic Feeding Disorder. Different classes of medications were used in variable doses for different durations which were associated with significant improvement in eating patterns and reduction in fear and anxiety associated with eating.
ConclusionPhagophobia is a serious and potentially life-threatening illness that can cause physical complications and functional impairment in the psychosocial aspect. Pharmacological treatment can be a beneficial and safe option either alone or in combination with therapeutic interventions for children presenting with phagophobia.
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Cell Physiological Behavior in the Context of Local Hypothermia
More LessLocal hypothermia has protective effects on injured endothelial cells, cardiomyocytes, and neurocytes. Unfortunately, the underlying mechanism of local hypothermia is still unknown. The overall effect of local hypothermia involves changes in cellular and extracellular homeostasis. Reduction in cellular metabolism is the hallmark effect of local hypothermia, resulting in a reduction in energy expenditure already impaired by starvation conditions, such as ischemia. However, on a molecular basis, local hypothermia modifies cell physiology according to the type and the vitality of the cells (brain cells are more important than skin cells; therefore, local hypothermia of the brain tissue is more critical than skin tissue, and the overall reaction of the organism is to prevent the brain from dying). This involves activating survival mechanisms, such as autophagy of brain tissue and apoptosis. The activated signaling pathways are not identical in various tissues. However, the whole machinery signaling axes have not yet been elucidated. Local hypothermia promotes the healing of the injury and improves the proliferation of regenerative tissue, but not differentiation. Hypothermia prevents the transdifferentiation of endothelial cells, neurons, and myocardiocytes. Finally, the therapeutic effects of hypothermia involve activating the nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1).
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