Etiological factors

  • 文章类型: Journal Article
    牙齿磨损由机械(磨损或磨损)和化学(侵蚀)因素引起。尽管其患病率和临床意义,准确衡量和理解其原因在日常实践中仍然具有挑战性。这项为期一年的研究对39名参与者进行了全面的检查,并在开始和12个月后进行了全面的口腔内扫描。每颗牙齿表面的体积损失超过100µ(颊,舌/腭和切牙/咬合)通过比较两个时间点的三维扫描来测量。这项研究还通过临床检查和问卷调查评估了磨损和侵蚀等因素。睡眠磨牙症参与者的牙齿磨损没有显着差异。然而,有清醒磨牙症和关节相关症状的人的前牙出现明显磨损。磨损增加与经常食用酸性饮料有关,经常游泳,口干,夜间流口水和胃灼热,而反流患者没有发现明显的磨损。所使用的方法被证明在准确评估牙齿磨损的进展方面是有效的,这很重要,因为许多患者最初可能无症状。在牙齿磨损模式中观察到的可变性强调需要开发特定的软件应用程序,以基于对患者数据库的广泛分析来立即有效地比较磨损区域。
    Dental wear arises from mechanical (attrition or abrasion) and chemical (erosion) factors. Despite its prevalence and clinical significance, accurately measuring and understanding its causes remain challenging in everyday practice. This one-year study with 39 participants involved comprehensive examinations and full-arch intraoral scans at the start and after 12 months. Volume loss exceeding 100 µ on each tooth\'s surfaces (buccal, lingual/palatine and incisal/occlusal) was measured by comparing three-dimensional scans from both time points. This study also assessed factors such as abrasion and erosion through clinical exams and questionnaires. There were no significant differences in dental wear in participants with sleep bruxism. However, noticeable wear occurred in the front teeth of those with waking bruxism and joint-related symptoms. Increased wear was associated with frequent consumption of acidic drinks, regular swimming, dry mouth, nocturnal drooling and heartburn, while no significant wear was found in patients with reflux. The used methodology proved effective in accurately assessing the progression of dental wear, which is important as many patients may initially be asymptomatic. The variability observed in dental wear patterns underscores the need to develop specific software applications that allow immediate and efficient comparison of wear areas based on extensive analysis of patient databases.
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  • 文章类型: Journal Article
    背景:口腔创伤性溃疡性病变(OTUL)在临床实践中经常遇到,然而,对其临床特征和创伤性病因的研究有限。这项回顾性研究旨在分析年龄,性别,临床特征,以及OTUL患者的创伤性病因,并为牙科临床医生优化患者护理和预防策略提供有价值的见解。
    方法:本研究共纳入1543例OTUL患者。年龄,性别,病史,收集患者的临床特点及创伤性病因分析。采用Logistic回归分析确定年龄和性别作为OTUL相关因素的意义。
    结果:该研究揭示了不同年龄段和性别之间临床特征和创伤性病因的显著差异。Logistic回归分析显示,年龄和性别均是OTUL的显著相关因素。
    结论:根据年龄和性别,OTUL的临床特征和创伤性病因似乎存在显着差异。应对所有年龄和性别群体实施更有针对性的预防战略。
    BACKGROUND: Oral traumatic ulcerative lesions (OTUL) are commonly encountered in clinical practice, yet there is limited research on their clinical characteristics and traumatic etiological factors. This retrospective study aimed to analyze the age, gender, clinical characteristics, and traumatic etiological factors in a large cohort of patients with OTUL and provide valuable insights for dental clinicians to optimize patient care and prevention strategies.
    METHODS: A total of 1543 patients with OTUL were enrolled in this study. Age, gender, medical history, clinical characteristics and traumatic etiological factors were collected and analyzed. Logistic regression analysis was performed to determine the significance of age and gender as factors related to OTUL.
    RESULTS: The study revealed significant variations in clinical characteristics and traumatic etiological factors among different age groups and between genders. Logistic regression analysis demonstrated that both age and gender were significant factors related to OTUL.
    CONCLUSIONS: The clinical characteristics of OTUL and traumatic etiological factors appear to be significantly different according to age and gender. More targeted prevention strategies should be implemented for all age and gender groups.
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  • 文章类型: Journal Article
    背景:呼吸机相关性肺炎(VAP)是重症监护病房(ICU)的一个重要问题,对患者预后有重大影响。这项回顾性横断面研究旨在确定发展中国家ICU中VAP的患病率。确定主要的病因,评估患者结果,并强调在高危患者群体中需要有针对性的干预措施。方法这项回顾性横断面研究包括589例ICU患者,这些患者接受了超过48小时的呼吸机辅助呼吸。其中,151开发了VAP。诊断是在临床上做出的,实验室,和放射学发现,和气管抽吸培养物。排除包括儿科患者,不到48小时的通风,和预先存在的肺部感染。患者数据包括性别,年龄,合并症,结果,入院原因,分离的微生物,和临床发现。结果589例患者中有151例发生VAP。患者的年龄在31至69岁之间,平均年龄为45.43±8.92岁。入住ICU时的临床诊断各不相同,包括败血症,创伤,中风,和代谢紊乱。胸部X光片通常显示肺不张(19.2%),合并(21.9%),胸腔积液(11.9%),和大叶性肺炎(45.7%)。气管抽吸培养物主要是分离的多药耐药革兰氏阴性棒,耐甲氧西林革兰阳性球菌和真菌性肺炎在中性粒细胞减少性脓毒症病例中普遍存在。值得注意的是,只有54例(35.8%)患者存活,在脓毒症中观察到明显较差的结果,中性粒细胞减少性败血症,和中风病例与创伤和术后入院相比。结论多药耐药菌和医院感染的传播是ICUVAP的主要原因。这强调了迫切需要采取多方面的干预措施来有效预防和管理VAP。制定和实施有针对性的战略,考虑到在资源有限的医疗保健环境中面临的独特挑战,可以帮助降低与之相关的死亡率.
    Background Ventilator-associated pneumonia (VAP) is a critical concern in the intensive care unit (ICU), with significant implications for patient outcomes. This retrospective cross-sectional study aimed to determine the prevalence of VAP in an ICU of a developing country, identify the predominant etiological factors, assess patient outcomes, and underscore the need for tailored interventions in high-risk patient groups. Methods This retrospective cross-sectional study included 589 ICU patients who underwent ventilator-assisted breathing for over 48 hours. Among them, 151 developed VAP. The diagnosis was made on clinical, laboratory, and radiological findings, and tracheal aspirate cultures. Exclusions included pediatric patients, less than 48 hours of ventilation, and pre-existing lung infections. Patient data encompassed gender, age, comorbidities, outcomes, admission reasons, isolated microorganisms, and clinical findings. Results 151 patients out of the 589 developed VAP. The age of the patients ranged between 31 to 69 years and the mean age was 45.43 ± 8.92 years. Clinical diagnoses upon ICU admission varied, including sepsis, trauma, stroke, and metabolic disorders. Chest X-rays commonly revealed atelectasis (19.2%), consolidation (21.9%), pleural effusion (11.9%), and lobar pneumonia (45.7%). Tracheal aspirate cultures predominantly isolated multidrug-resistant gram-negative rods, with methicillin-resistant gram-positive cocci and fungal pneumonia prevalent in neutropenic sepsis cases. Notably, only 54 (35.8%) of patients survived, with significantly poorer outcomes observed in sepsis, neutropenic sepsis, and stroke cases compared to trauma and post-operative admissions. Conclusion Multidrug-resistant organisms and the spread of nosocomial infections are the predominant causes of VAP in the ICU. This emphasizes the urgent need for multifaceted interventions to prevent and manage VAP effectively. Developing and implementing targeted strategies, considering the unique challenges faced in resource-constrained healthcare settings can aid in decreasing the mortality associated with it.
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  • 文章类型: Journal Article
    尽管已知口腔癌特别具有侵袭性并且预后不良,早期检测通常与更好的前景有关。因此,这项研究的目的是评估牙科学生和实习生对口腔癌预防策略和实践的理解,以及他们参与这种努力的动机。
    牙科学校最后几年的牙科实习生和本科生参加了一项横断面问卷调查研究。所有符合条件的参与者(N=300)都被要求填写关于口腔癌预防和早期发现的48项问卷。问卷分为四个部分,涵盖人口统计信息,知识,行为,和态度。
    回答调查的人的百分比为65%(N=300)。在知识和态度测试中,实习生的表现明显优于牙科学校新生(P=0.05)。有些人避免接受口腔癌筛查,因为他们觉得自己没有知识,技能,自我保证,或者有效地这样做的时间。
    这项研究的大多数受访者似乎缺乏预防和早期发现口腔癌的必要知识和能力,但是他们对口腔癌预防教育有很高的渴望和积极的看法。
    UNASSIGNED: Although oral cancer is known to be particularly aggressive and to have a poor prognosis, early detection is often connected with a better outlook. Consequently, the purpose of this research was to evaluate dental students\' and interns\' understanding of oral cancer prevention strategies and practices, as well as their motivations for engaging in such efforts.
    UNASSIGNED: The dental interns and undergraduates in their last years of the dental school participated in a cross-sectional questionnaire study. All eligible participants (N = 300) were asked to fill out a 48-item questionnaire on oral cancer prevention and early detection. The questionnaire was broken down into four parts covering demographic information, knowledge, behaviors, and attitudes.
    UNASSIGNED: The percentage of people who answered the survey was 65% (N = 300). Interns outperformed dentistry school freshmen by a substantial margin (P = 0.05) on tests of both knowledge and attitude. Some people avoid being screened for oral cancer because they feel they do not have the knowledge, skills, self-assurance, or time to do so effectively.
    UNASSIGNED: The majority of those polled in this research seemed to lack the necessary knowledge and abilities in mouth cancer prevention and early detection, but they had high levels of desire and a positive outlook toward oral cancer preventive education.
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  • 文章类型: Journal Article
    目的:为了确定频率,临床表现,马尾综合征(CES)的病因。
    方法:这项回顾性研究对256名参与者进行,目的分析CES疑似病例的临床表现频率和模式。纳入标准包括18岁或以上的参与者,他们有医疗记录可供审查,并有CES的红色标志症状。该研究收集了有关各种因素的信息,例如年龄,性别,在MRI上确认CES,神经功能缺损,病因因素,症状持续时间,还有更多.使用描述性统计和逻辑回归分析收集的数据,以确定MRI证明的CES和可疑CES之间的重要变量。
    结果:平均年龄为58.05±19.26岁,女性151人(58.98%),男性105人(41.02%)。大多数(50.78%)患有神经功能缺损,而其他症状包括排尿困难或尿流感觉受损(17.58%),直肠饱胀感丧失(3.12%),尿失禁或大便失禁(35.16%),双侧坐骨神经痛(21.88%),下肢神经症状(25.00%),麻醉或任何腿部无力(24.22%),以双侧坐骨神经痛为主要症状(21.88%)。症状为慢性的占47.27%,急性的占21.88%。经MRI证实的CES的机率每年增加3%。神经功能缺损与MRI证实的CES密切相关(OR=14.97),而直肠饱胀感的丧失使几率增加了10倍(OR=10.62)。
    结论:CES可以出现各种症状,包括双侧神经功能缺损,尿失禁和大便失禁,和双侧坐骨神经痛,随着年龄,严重的双侧神经功能缺损,直肠饱胀感的丧失与MRI证实的CES有关。早期诊断和治疗对于更好的结果至关重要。
    OBJECTIVE: To determine the frequency, clinical presentation, and etiological factors of cauda equina syndrome (CES).
    METHODS: This retrospective study was done on 256 participants, and aimed to analyze the frequency and patterns of clinical presentation in suspected cases of CES. The inclusion criteria included participants aged 18 or older with medical records available for review and having red-flagged symptoms for CES. The study collected information on various factors such as age, gender, confirmation of CES on MRI, neurological deficits, etiological factors, duration of symptoms, and more. The data collected was analyzed using descriptive statistics and logistic regression to identify significant variables between MRI-proven CES and suspected CES.
    RESULTS: The mean age was 58.05 ± 19.26 years, with 151 females (58.98%) and 105 males (41.02%). The majority (50.78%) had a neurological deficit, while other symptoms included difficulty initiating micturition or impaired sensation of urinary flow (17.58%), loss of sensation of rectal fullness (3.12%), urinary or faecal incontinence (35.16%), bilateral sciatica (21.88%), neurological symptoms in the lower limbs (25.00%), anaesthesia or any leg weakness (24.22%), and bilateral sciatica as the predominant symptom (21.88%). Symptoms were chronic in 47.27% and acute in 21.88%. The odds of MRI-proven CES increase by 3% per year of age. Neurological deficit was strongly associated with MRI-proven CES (OR = 14.97), while loss of sensation of rectal fullness increased the odds by 10-fold (OR = 10.62).
    CONCLUSIONS: CES can present with various symptoms, including the bilateral neurological deficit, urinary and faecal incontinence, and bilateral sciatica, with age, severe bilateral neurological deficit, and loss of sensation of rectal fullness being associated with MRI-proven CES. Early diagnosis and treatment are crucial for better outcomes.
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  • 文章类型: Journal Article
    关于ADHD诊断与认知表现随时间变化的预测性关联的病因学证据很少。这里,我们使用交叉滞后模型设计,在基线时年龄为6~17岁,随访时年龄为12~24岁的ADHD和对照同胞对的404名参与者(74%为男性)样本中检验了这些预测性和病因学模式.
    数据包括IQ,短期和工作记忆测量,以及四选择反应时间任务的响应速度和可变性。
    多动症和智商随着时间的推移相互预测。基线时的ADHD预测随访时工作记忆表现较低。随着时间的推移,ADHD与认知变量之间的关联出现了稳定的病因影响。
    早期干预是否可以减少对学校学习的负面影响,需要进一步研究。
    Evidence about the etiology of the predictive associations between a diagnosis of ADHD and cognitive performance over time is scarce. Here, we examine these predictive and etiological patterns using a cross-lagged model design in a sample of 404 participants (74% males) from ADHD and control sibling pairs aged 6 to 17 years at baseline and 12 to 24 years at follow-up.
    Data included IQ, short-term and working memory measures, and response speed and variability from a four-choice reaction-time task.
    ADHD and IQ predicted each other over time. ADHD at baseline predicted lower working memory performance at follow-up. Stable etiological influences emerged in the association between ADHD and cognitive variables across time.
    Whether early interventions can reduce negative interference with learning at school requires further study.
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  • 文章类型: Editorial
    暂无摘要。
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  • 文章类型: Journal Article
    UNASSIGNED: Bruxism is a multifactorial phenomenon that involves grinding or clenching of teeth. The parafunctional habit includes abnormal tooth wear, tooth fracture, pain, and tooth mobility, along with headaches and facial muscle hypertrophy. It is imperative for students to be conscious of teeth grinding along with its possible causes. The student will be alert to visit the dentist if required and contribute to the recognition of etiological factors, to eliminate them.
    UNASSIGNED: This study aims to find the prevalence and understanding of bruxism among Gulf Medical University (GMU) students.
    UNASSIGNED: A cross-sectional, questionnaire-based study was conducted among 451 GMU students. The parameters for data collection were age, gender, prevalence, associated signs and symptoms, causes, genetic predisposition, time of day, and effect on the appearance of teeth.
    UNASSIGNED: While 35.9% were unaware, 41.7% of our samples reported bruxism. The majority recognized temporomandibular joint and facial pain as causative, and 24.8% reported symptoms. Headache (26.4%) was prime and 7.5% were associated with fracture and abnormal tooth wear to bruxism (38.1%) experienced night bruxism. A significant number of students (32.4%) identified abnormal anterior teeth relationship as the cause and (64.3%) associated bruxism and esthetics.
    UNASSIGNED: Nearly 41.7% of the students reported bruxism. Around 35.9% of the samples were uninformed. Nearly 20.8% believed that bruxism had genetic relevance. Nearly 51.9% of the participants were asymptomatic. Around 38.1% had night bruxism and 32.4% identified abnormal anterior teeth relationship as the cause. The majority of the sample (64.3%) connected bruxism to negative effects on teeth and esthetics.
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  • 文章类型: Journal Article
    BACKGROUND: Peyronie\'s disease (PD) prevalence varies between 0.39% and 20% and studies on PD prevalence are limited.
    OBJECTIVE: This study aims to determine the prevalence of PD in males aged ≥30 years in Turkey and to evaluate etiological factors associated with it.
    METHODS: The study was conducted in 12 regions of Turkey according to the Eurostat Nomenclature of Territorial Units for Statistics 1 classification and included 1,208 patients. Survey questionnaires including questions about demographic features and basic health status as well as about diagnosis and etiology of PD were put forth to the volunteers who agreed to participate in the study. Diagnosis of probable PD was established by evaluating the questionnaires. Patients with a diagnosis of congenital penile curvature were excluded from the group with PD. Chi-square test, Fisher\'s exact test, and Mann-Whitney U test were used.
    METHODS: The primary outcome analyzed in this article was the prevalence rate of PD in Turkey and the associated comorbidities.
    RESULTS: The prevalence of PD was determined as 5.3%. The rates of participants with PD were found to be the highest in the 50-59 years group (27%) and in the North-East Region (20%). Compared with participants without PD, participants with PD were older (median: 52 interquartile range [41-64] vs 45 [37-55]; P < .001) and the rates of smokers (73% vs 60.9%; P = .036) and those having diabetes mellitus (17.5% vs 9.2%; P = .045), hypertension (14.3% vs 6.9%; P = .041), and heart failure were higher (7.9% vs 2.5%; P = .027). Male with PD symptoms preferred their partners on top during sexual intercourse (15.2% vs 34.1%; P < .001). This is the first study to evaluate premature ejaculation prevalence and related comorbidities with face-to-face interviews.
    CONCLUSIONS: The prevalence of PD was 5.3% in Turkey. Besides advanced age, smoking, position of sexual intercourse, and presence of comorbidities especially diabetes mellitus, hypertension, and heart failure were the factors associated with PD prevalence. Kadioglu A, Dincer M, Salabas E, et al. A Population-Based Study of Peyronie\'s Disease in Turkey: Prevalence and Related Comorbidities. Sex Med 2020;8:679-685.
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  • 文章类型: Journal Article
    哮喘是最常见的,长期持续的炎症性气道疾病,影响超过10%的世界人口。它的特点是支气管狭窄,气道高反应性,血管舒张,气道水肿,和刺激感觉神经末梢导致反复的呼吸困难事件,喘息,胸闷,咳嗽.它是全球发病的主要原因,是由于暴露于过敏原或环境暴露而导致免疫系统减弱。在哮喘的情况下,它导致许多炎症细胞如肥大细胞和树突状细胞的活化,以及活化的嗜酸性粒细胞和淋巴细胞在炎症部位的积累。结构细胞如气道上皮细胞和平滑肌细胞释放促进支气管炎症的炎症介质。长期的支气管炎症可引起病理改变,viz.支气管上皮厚度的改善和气道上皮细胞的脆性,上皮纤维化,增生,气道平滑肌肥大,血管生成,和粘液腺增生。支气管上皮细胞的刺激会导致炎症细胞因子和趋化因子的释放,从而吸引炎症细胞进入支气管气道,在哮喘中起重要作用。对上市的抗哮喘药物无反应的哮喘患者需要新型生物药物来调节哮喘状况。本综述列举了各种类型的哮喘,病因因素,和诱导哮喘的体内动物模型。潜在的病理,免疫学作用机制,炎症介质的作用,炎症对支气管气道的影响,更新的治疗方法,本文对哮喘的生物学新靶点进行了讨论。
    Asthma is the most common, long-lasting inflammatory airway disease that affects more than 10% of the world population. It is characterized by bronchial narrowing, airway hyperresponsiveness, vasodilatation, airway edema, and stimulation of sensory nerve endings that lead to recurring events of breathlessness, wheezing, chest tightness, and coughing. It is the main reason for global morbidity and occurs as a result of the weakening of the immune system in response to exposure to allergens or environmental exposure. In asthma condition, it results in the activation of numerous inflammatory cells like the mast and dendritic cells along with the accumulation of activated eosinophils and lymphocytes at the inflammation site. The structural cells such as airway epithelial cells and smooth muscle cells release inflammatory mediators that promote the bronchial inflammation. Long-lasting bronchial inflammation can cause pathological alterations, viz. the improved thickness of the bronchial epithelium and friability of airway epithelial cells, epithelium fibrosis, hyperplasia, and hypertrophy of airway smooth muscle, angiogenesis, and mucus gland hyperplasia. The stimulation of bronchial epithelial cell would result in the release of inflammatory cytokines and chemokines that attract inflammatory cells into bronchial airways and plays an important role in asthma. Asthma patients who do not respond to marketed antiasthmatic drugs needed novel biological medications to regulate the asthmatic situation. The present review enumerates various types of asthma, etiological factors, and in vivo animal models for the induction of asthma. The underlying pathological, immunological mechanism of action, the role of inflammatory mediators, the effect of inflammation on the bronchial airways, newer treatment approaches, and novel biological targets of asthma have been discussed in this review.
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