amirali azimi
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Introduction
The objective of this study was to assess the prevalence of falls, fear of falling (FOF), complications arising from falls, and identify possible sociodemographic and health-related factors associated with these outcomes among older adults.
MethodsThis cross-sectional study was based on the first wave of the Ardakan Cohort Study on Aging (ACSA), which includes participants over 50 years of age residing in Ardakan, Iran. Fall history, number of fall events, FOF, hospitalizations, and fractures in the past 12monthswere assessed through a face-to-face interview. Health-related factors were recorded on a self-expressed basis. Associations were assessed using multiple logistic regression.
ResultsAmong the 4,990 participants, fall history in the past 12months was prevalent in 19.9%, with 10.1% reporting more than two fall events. Women (p < 0.001) and older participants (p< 0.001) had a higher prevalence. In females, 28.8% reported moderate to severe FOF, while 21%experienced disruptions in their daily activities as a result of this fear. The prevalence of fractures following falls was 5.1% in males and 8.6% in females. After adjusting for confounding factors, FOF (OR: 1.59, 95% CI: 1.33-1.91, p<0.001), imbalance (OR: 2.45, 95% CI: 1.68-3.58, p<0.001), urinary incontinence (OR: 1.44, 95% CI: 1.04-1.9, p=0.025), cognitive impairment (OR: 1.21, 95% CI: 1.01-1.46, p=0.049), vertigo or dizziness (OR: 1.39, 95% CI: 1.15-1.68, p<0.001), osteoporosis (OR: 1.24, 95% CI: 1.03-1.50, p=0.023), osteoarthritis (OR: 1.33, 95% CI: 1.13-1.56, p=0.001), depression (OR: 1.30, 95% CI: 1.06-1.60, p=0.010), and Central Nervous System (CNS)-affecting diseases (OR: 1.99, 95% CI: 1.33-2.97, p=0.001) were found to have positive associations with falls.
ConclusionThis study showed that about one-fifth of those over 50 in Iran have experienced at least one fall within a year. Self-expressed imbalance, FOF, and urinary incontinence were the most prominent risk factors. Due to resulting in hospitalization and fractures, falls also lead to fear of falling and the associated limitation of activities.
Keywords: Accidental falls, Geriatrics, Aged, Osteoporotic fractures -
Background
Cervical cancer, the most common gynecological cancer, is a matter of concern, especially in developing countries. The present study investigates survival rates, associated factors, and post-treatment follow-up status in cervical cancer patients. Study Design: A retrospective cohort study.
MethodsThis study was conducted on 187 patients referred to an academic referral cancer center in Iran from 2014-2020. Overall survival (OS) and event-free survival (EFS) were evaluated using Kaplan Meyer analysis. The event was defined as recurrence, metastasis, or death.
ResultsThe patients came for post-treatment visits for a median of 36 months (interquartile range [IQR]: 18-51). The median OS and EFS were 24 and 18 months, respectively. The 1- and 3- year OS rates were 90% and 72%, respectively. The 1- and 3- year EFS rates were 76% and 61%, respectively. Stage ≥ III (hazard ratio [HR]: 3.1, 95% confidence interval [CI]: 1.5, 6.5, P < 0.001) and tumor size > 4 cm (HR: 2.5, 95% CI: 1.2, 4.9, P = 0.006) predicted lower OS. The most common histopathology was squamous cell carcinoma (SCC) (71.1%) with non-significant higher 3- year OS (HR: 0.62, 95% CI: 0.33, 1.16, P = 0.13). No significant difference in OS was found between adjuvant and definitive radiotherapy in both early and advance-staged patients (Log-rank = 0.7 P = 0.4, log-rank = 1.6, P = 0.2, respectively).
ConclusionAs evidenced by the obtained results, the survival of patients was lower compared to that in developed countries. Higher stage and tumor size led to shorter survival. The histopathology and type of treatment in comparable stages did not have any significant impact on survival.
Keywords: Adjuvant, Neoplasm Staging, Radiotherapy, Survival Analysis, Uterine Cervical Neoplasms -
Introduction
Despite the increasing vaccination coverage, COVID-19 is still a concern. With the limited health care capacity, early risk stratification is crucial to identify patients who should be prioritized for optimal man- agement. The present study investigates whether on-admission lactate dehydrogenase to albumin ratio (LAR) can be used to predict COVID-19 outcomes.
MethodsThis retrospective cross-sectional study evaluated hos- pitalized COVID-19 patients in an academic referral center in Iran from May 2020 to October 2020. The area under the receiver operating characteristic (ROC) curve (AUC) was used to evaluate the value of LAR in the pre- diction of mortality. The Yuden index was used to find the optimal cut-off of LAR to distinguish severity. Patients were classified into three groups (LAR tertiles), first: LAR<101.46, second: 101.46 ≤ LAR< 148.78, and third group: LAR ≥ 148.78. Logistic regression analysis was used to identify the association between tertiles of LAR, as well as the relationship between each one-unit increase in LAR with mortality and ICU admission in three models, based on potential confounding variables.
ResultsA total of 477 patients were included. Among all patients, 100 patients (21%) died, and 121 patients (25.4%) were admitted to intensive care unit (ICU). In the third group, the risk of mortality and ICU admission increased 7.78 times (OR=7.78, CI: 3.95-15.26; p <0.0001) and 4.49 times (OR=4.49, CI: 2.01-9.04; p <0.0001), respectively, compared to the first group. The AUC of LAR for prediction of mortality was 0.768 (95% CI 0.69- 0.81). LAR ≥ 136, with the sensitivity and specificity of 72% (95%CI: 62.1-80.5) and 70% (95%CI: 64.9-74.4), respectively, was the optimal cut-off value for predicting mortality.
ConclusionHigh LAR was associated with higher odds of COVID-19 mortality, ICU admission, and length of hospitalization. On-admission LAR levels might help health care workers identify critical patients early on.
Keywords: Serum Albumin, L-Lactate Dehydrogenase, COVID-19, Prognosis, Emergency Service, Hospital -
Background
Based upon WHO (World Health Organization) Coronavirus Dashboard more than 5 million deaths worldwide have been attributed to the COVID-19 (Coronavirus Disease 2019) caused by the SARS-Cov-2 virus (Severe Acute Respiratory Syndrome Coronavirus) till November 2021. The annual flu vaccination has raised many questions about the vaccine's effects on Covid-19 outcomes. Several possible mechanisms including cross-reactivity and cross-protection have been reported to be responsible for the potential protective effect of the flu vaccine on the COVID-19 infection. This study was performed to evaluate the possible effect of the influenza vaccine on the disease severity, the mortality rate, and the length of hospitalization in COVID-19 patients.
MethodsThe data of 1300 patients were recorded from May 2020 to October 2020. Patients with a previous history of COVID-19, patients under 18 years old, and patients who did not have accurate information about their influenza vaccination history were excluded. 498 hospitalized unvaccinated COVID-19 patients with typical clinical manifestations and a positive PCR (Polymerase Chain Reaction) test for COVID-19 were included in this observational, cross-sectional study. The participants were divided into two groups (vaccinated and unvaccinated) based on the history of influenza vaccination at the time of admission.
ResultsThe length of hospital stay was lower in the vaccinated compared to the unvaccinated group (p < 0.05). However, there was no significant difference between the mortality rate, the need for ICU (Intensive Care Unit) admission, and the severity of the disease between the two groups (p> 0.05).
ConclusionSince the patients studied in this article did not receive any of the Covid-19 vaccines; Therefore, the effect of influenza vaccination on the clinical course of Covid-19 can be evaluated using the results of this study. A longer length of hospital stay was observed in the unvaccinated patients in our study, which may suggest the possible protective effect of the influenza vaccine against COVID-19.
Keywords: COVID-19, Influenza Vaccine, Prognosis -
مقدمهتمام قسمت های استخوان تمپورال، ممکن است توسط سلول های هوایی ماستوئید، هوادار شوند. هدف از این مطالعه، تعیین شیوع حفره دار شدن برجستگی مفصلی استخوان تمپورال در تصاویر CBCT (Cone-Beam Computed Tomography) بود.مواد و روش هادر این مطالعه ی توصیفی- تحلیلی، 150 کلیشه CBCT، از نظر وجود یا فقدان حفره دارشدن برجستگی مفصلی استخوان تمپورال، بررسی گردید و اطلاعات دیگر مانند سن، جنس و محل حفره دارشدگی برای هر مورد، در پرسش نامه ی مخصوص مشاهده گر وارد شد. داده ها پس از جمع آوری، در نرم افزار SPSS نسخه ی 20 وارد گردید و با استفاده از آزمون کای اسکوئر مورد تجزیه و تحلیل قرار گرفت.یافته هاحفره دارشدن برجستگی مفصلی، در 9 مورد مشاهده شد (6 درصد). شیوع حفره دار شدن برجستگی مفصلی در مردان، 33/7 درصد و در زنان، 7/66 درصد بود، که از نظر آماری اختلاف معنی داری وجود نداشت (α = 0/05).که از نظر آماری اختلاف معناداری وجود نداشت.نتیجه گیریشیوع حفره دار شدن برجستگی مفصلی استخوان تمپورال، بیش از آن چیزی هست که تاکنون گزارش شده است ولی به دلیل عدم وجود علایم کلینیکی، کمتر گزارش می شود.کلید واژگان: توموگرافی کامپیوتری با اشعه ی مخروطی, حفره دار شدن, برجستگی, استخوان تمپورال, مفصل گیجگاهی و فکیIntroductionTAll parts of the temporal bone might be pneumatized by mastoid air cells. The aim of this study was to determine of the prevalence of pneumatized articular eminence of the temporal bone on CBCT scans.Materials and MethodsIn this descriptive analytical study, 150 CBCT scans were evaluated for the presence or absence of pneumatization of articular eminence and other data such as age, sex and the involved side for each case were recorded in special datasheets. Data were analyzed with SPSS 20, using chi-squared test.ResultsPneumatized articular eminence (PAT) was observed in 9 cases (6%). The prevalence of PAT in males was 33.3%, with 66.7% in females, with no statistically significant differences. Unilateral involvement was more prevalent than the bilateral form. In seven patients (77.8%) PAT was multilocular, and two patients (22.2%) with PAT exhibited unilocular form on the scans.ConclusionPrevalence of PAT is higher than what has been reported to date; it has been reported less frequently due to the absence of clinical symptoms and signs.Keywords: Cone-beam computed tomography, Pneumatization, Temporal bone, Temporo-mandibular joint, Tubercle
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بررسی ایمونو هیستوشیمیایی بروز مارکر p63 در تومور بزاقی پلئومورفیک آدنوما و موکواپیدرموئید کارسینومازمینه و هدفتومورهای بزاقی 2 تا 3 درصد نئوپلاسم های سر وگردن را تشکیل می دهند و در حال حاضر اطلاعات کمی در مورد مکانیسم های مولکولی دخیل در تومورزایی آنها وجود دارد. پروتئین P63 نقش مهمی در تکامل اپی تلیوم، سلول های ریشه ای و تمایز بازی می کند و ممکن است به عنوان انکوژن عمل نماید. هدف از این تحقیق بررسی بروز مارکر p63 و نقش تومورزایی آن در نئوپلاسم های بزاقی می باشد.روش بررسیدر این پژوهش هجده نمونه پلئومورفیک آدنوما و نه نمونه موکواپیدرموئید کارسینوما برای مارکر p63 با استفاده از روش ایمونوهیستوشیمی رنگ آمیزی شدند. وسعت رنگ پذیری بر اساس درصد سلول های مثبت رنگ گرفته در حداقل 1000 سلول نئوپلاستیک محاسبه شد.یافته هادر غده بزاقی نرمال و پلئومورفیک آدنوما سلول های میو اپی تلیال و سلول های بازال مجاری رنگ پذیری نشان دادند. ولی سلول های مفروش کننده مجاری و آسینی ها منفی بودند. در موکو اپی درموئید کارسینوما سلول های اپی تلیالی و اینترمدیت p63 را بروز دادند اما سلول های موکوسی منفی بودند. بعد از انجام آزمون t نسبت سلول هایP63 مثبت در موکواپیدرموئید کارسینوما 44/84 درصد و در پلئومورفیک آدنوما 83/57درصد بود (P<0.05).نتیجه گیریبراساس نتایج بدست آمده P63 در سلول های میواپی تلیال و بازال غده بزاقی نرمال بروز می کند. بروز این مارکر در سلول های اپیدرموئید و اینترمدیت موکواپیدرموئید کارسینوما و میواپی تلیال و بازال پلئومورفیک آدنوما نیز دیده می شود که پیشنهاد می کند p63 در تومورزایی غدد بزاقی می تواند دخیل باشد.
کلید واژگان: P63, ایمونوهیستوشیمی, پلئومورفیک آدنوما, موکواپیدرموئید کارسینوماBackground And ObjectiveTumors of salivary gland represent 2-3% of head and neck neoplasms and little is known about the underlying molecular mechanisms leading to tumorigenesis. P63 plays an essential role in epithelial development، stem cell identity and cellular differentiation and may act as an oncogene. The expression of P63 was analyzed to investigate the role of this marker in tumorigenesis of salivary gland neoplasms. Subjects andMethodsIn this study، tissue specimens of 18 pleomorphic denoma (PA) and 9 mucoepidermoid carcinoma (MEC) were examined by immunohistochemistry for p63 expression. The percentage of positive neoplastic cells was calculated from a minimum of 1000 cells.ResultsIn normal salivary gland and PA، P63 was expressed in myoepithelial and basal duct cells، whereas ductal and acinus cells were always negative. In MEC، intermediate and epidermoid cells expressed p63، in contrast to mucous cells. After using statistical test، the percentage of p63 positive cells in MEC was 84. 44% and in PA was 57. 83% (p<0. 05).Conclusionp63 is expressed in the nuclei of normal salivary gland myoepithelial and basal cells. P63 expression is retained in the epidermoid cells of MEC and myoepithelial and basal cells of PA، which suggests a role of p63 in oncogenesis of these tumors.Keywords: p63, immunohistochemical, pleomorphic adenoma, mucoepidermoid carcinoma
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