Diagnostic evaluation

诊断评估
  • 文章类型: Editorial
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  • 文章类型: Journal Article
    背景:由于高成本和复杂性,不采用口服葡萄糖耐量试验作为识别糖尿病患者的筛查方法,这导致了孤立的攻击后高血糖(IPH)患者的误诊,就是这样。,空腹血糖正常(<7.0mmoL/L)和餐后2h血糖异常(≥11.1mmoL/L)的患者。我们旨在开发一个模型来区分IPH患者和正常人群。
    方法:来自54301名符合条件的参与者的数据来自中国糖尿病患者癌症风险评估:一项中国纵向(反应)研究。来自37740名参与者的数据用于开发诊断系统。在16561名参与者中进行外部验证。使用三种机器学习算法来创建预测模型,进一步通过各种分类算法进行评价,建立最佳预测模型。
    结果:选择了十个特征来开发基于人工神经网络的IPH诊断系统(IPHDS)。在外部验证中,IPHDS的AUC为0.823(95%CI0.811-0.836),显著高于台湾模型的AUC[0.799(0.786-0.813)]和中国糖尿病风险评分模型的AUC[0.648(0.635-0.662)]。IPHDS模型的敏感性为75.6%,特异性为74.6%。该模型在亚组分析中优于台湾和CDRS模型。在https://app-iphds-e1fc405c8a69上部署了具有即时预测功能的在线站点。herokuapp.com/.
    结论:所提出的IPHDS可能是一个方便且用户友好的糖尿病筛查工具,在大量普通人群中进行健康检查。
    BACKGROUND: Due to the high cost and complexity, the oral glucose tolerance test is not adopted as the screening method for identifying diabetes patients, which leads to the misdiagnosis of patients with isolated post-challenge hyperglycemia (IPH), that is., patients with normal fasting plasma glucose (<7.0 mmoL/L) and abnormal 2-h postprandial blood glucose (≥11.1 mmoL/L). We aimed to develop a model to differentiate individuals with IPH from the normal population.
    METHODS: Data from 54301 eligible participants were obtained from the Risk Evaluation of Cancers in Chinese Diabetic Individuals: a longitudinal (REACTION) study in China. Data from 37740 participants were used to develop the diagnostic system. External validation was performed among 16561 participants. Three machine learning algorithms were used to create the predictive models, which were further evaluated by various classification algorithms to establish the best predictive model.
    RESULTS: Ten features were selected to develop an IPH diagnosis system (IPHDS) based on an artificial neural network. In external validation, the AUC of the IPHDS was 0.823 (95% CI 0.811-0.836), which was significantly higher than the AUC of the Taiwan model [0.799 (0.786-0.813)] and that of the Chinese Diabetes Risk Score model [0.648 (0.635-0.662)]. The IPHDS model had a sensitivity of 75.6% and a specificity of 74.6%. This model outperformed the Taiwan and CDRS models in subgroup analyses. An online site with instant predictions was deployed at https://app-iphds-e1fc405c8a69.herokuapp.com/.
    CONCLUSIONS: The proposed IPHDS could be a convenient and user-friendly screening tool for diabetes during health examinations in a large general population.
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  • 文章类型: Journal Article
    目的:癫痫痉挛(ES)可由多种病因引起。然而,在几乎一半的案例中,病因不明。随着下一代测序(NGS)的出现,对遗传病因的认识有所增加。
    方法:我们回顾性回顾了2009年至2022年在达曼国王法哈德专科医院接受全面癫痫项目评估的ES患者的医疗记录。
    结果:我们的数据显示,在57.7%的ES患者中,经过标准的临床评估和神经影像学检查,病因不明.在这些病人中,n=25(35.2%)在进行某种形式的基因检测后接受了基因诊断,来自专业代谢工作的患者中有3.1%表示需要进行基因检测以确认诊断。染色体核型分析导致3.6%的患者诊断,和染色体微阵列导致7.1%的诊断。对45例患者进行了NGS癫痫基因面板(EP)检查,导致24.4%(n=11)的诊断。对27名患者进行了外显子组测序,包括n=14的非诊断小组测试;它导致了37.3%的诊断(n=10)。外显子组测序导致61.5%的患者没有先前的小组测试,只有两名患者先前的小组测试呈阴性。
    结论:在本文中,我们介绍了123例患者的ES诊断评估,并讨论了NGS评估ES的结果和优先级.我们的发现表明,在经过适当的临床评估和脑部MRI检查后,病因尚不清楚的患者中,外显子组测序对于确定ES的病因具有更高的诊断率。
    OBJECTIVE: Epileptic spasms (ES) can be caused by a variety of etiologies. However, in almost half of cases, the etiology is unidentified. With the advent of next-generation sequencing (NGS), the recognition of genetic etiologies has increased.
    METHODS: We retrospectively reviewed the medical records of patients with ES who were evaluated in the comprehensive epilepsy program at King Fahad Specialist Hospital Dammam between 2009 and 2022.
    RESULTS: Our data show that in 57.7% of patients with ES, the etiology was unidentified after a standard clinical evaluation and neuroimaging. Of these patients, n = 25 (35.2%) received a genetic diagnosis after some form of genetic testing, and 3.1% of patients from specialized metabolic work indicated the need for genetic testing to confirm the diagnosis. Karyotyping led to a diagnosis in 3.6% of patients, and chromosomal microarray led to a diagnosis in 7.1%. An NGS epilepsy gene panel (EP) was done for 45 patients, leading to a diagnosis in 24.4% (n = 11). Exome sequencing was done for 27 patients, including n = 14 with non-diagnostic panel testing; it led to a diagnosis in 37.3% (n = 10). Exome sequencing led to a diagnosis in 61.5% of patients without a previous panel test and in only two patients who had previously had a negative panel testing.
    CONCLUSIONS: In this article, we present the diagnostic evaluations of ES for a cohort of 123 patients and discuss the yield and priority of NGS for evaluating ES. Our findings suggest that exome sequencing has a higher diagnostic yield for determining the etiology of ES in patients for whom the etiology is still unclear after an appropriate clinical assessment and a brain MRI.
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  • 文章类型: Journal Article
    背景:南部非洲国家是全球艾滋病毒和梅毒负担最大的国家,在育龄妇女中患病率很高。虽然产前筛查是护理标准,梅毒筛查通常落后于HIV筛查。我们旨在评估两种商业化的双重HIV/梅毒护理点测试(POCT)的性能和操作特征,以同时进行母体HIV/梅毒筛查。
    方法:在南非和赞比亚的五个初级保健中心(PHCs)对HIV/梅毒双重POCT(SDBioline和Chembio)进行了基于临床的评估。将使用毛细血管指刺血的POCT结果与参考实验室梅毒和HIV血清学测定进行比较。
    结果:招募了三千四百十二名年龄≥18岁的孕妇。螺旋体抗体阳性和HIV感染的患病率为3.7%至9.9%(n=253)和17.8%至21.3%(n=643),分别。与参考测定相比,SDBioline对梅毒的合并敏感性为66.0%(95CI57.7-73.4),Chembio为67.9%(95CI58.2-76.3)。两种POCT对梅毒的集合特异性均高于98%。SDBioline和Chembio测定的灵敏度分别为78.0%(95CI68.6-85.7)和81.0%(95CI71.9-88.2),分别与活性梅毒病例定义的螺旋体试验阳性,血浆反应素快速滴度≥8进行比较。基于两种测定的梅毒的各种患病率估计的阴性预测值(NPV)范围为97%至99%。SDBioline对HIV的合并敏感性为92.1%(95CI89.4-94.2);Chembio为91.5%(95CI88.2-93.9)。SDBioline的HIV合并特异性为97.2%(95CI94.8-98.5),Chembio的合并特异性为96.7%(95CI95.1-97.8)。基于两种测定的HIV的各种患病率估计的NPV约为98%。大多数参与的女性(91%)更喜欢双重POCT,而不是两个单独的POCT,以治疗艾滋病毒和梅毒。医疗保健提供者对两种检测方法在PHC水平的实用性给予了有利的反馈.
    结论:基于提高梅毒产前筛查覆盖率的需要,可将双重HIV/梅毒POCT有效纳入产前检测算法,以加强努力消除这些感染的母婴传播.
    BACKGROUND: Southern African countries have the largest global burden of HIV and syphilis, with a high prevalence among women of reproductive age. Although antenatal screening is standard of care, syphilis screening has generally lagged behind HIV screening. We aimed to evaluate the performance and operational characteristics of two commercial dual HIV/syphilis point-of-care tests (POCTs) for simultaneous maternal HIV/syphilis screening.
    METHODS: A clinic-based evaluation of dual HIV/syphilis POCTs (SD Bioline and Chembio) was conducted at five primary healthcare centres (PHCs) in South Africa and Zambia. POCT results using capillary fingerprick blood were compared to reference laboratory syphilis and HIV serological assays.
    RESULTS: Three thousand four hundred twelve consenting pregnant women aged ≥ 18 years were enrolled. The prevalence of treponemal antibody seropositivity and HIV infection ranged from 3.7 to 9.9% (n = 253) and 17.8 to 21.3% (n = 643), respectively. Pooled sensitivity for syphilis compared to the reference assay was 66.0% (95%CI 57.7-73.4) with SD Bioline and 67.9% (95%CI 58.2-76.3) with Chembio. Pooled specificity for syphilis was above 98% with both POCTs. The sensitivities of SD Bioline and Chembio assays were 78.0% (95%CI 68.6-85.7) and 81.0% (95%CI 71.9-88.2), respectively compared to an active syphilis case definition of treponemal test positive with a rapid plasma reagin titre of ≥ 8. The negative predictive values (NPVs) based on various prevalence estimates for syphilis with both assays ranged from 97 to 99%. The pooled sensitivity for HIV was 92.1% (95%CI 89.4-94.2) with SD Bioline; and 91.5% (95%CI 88.2-93.9) with Chembio. The pooled specificities for HIV were 97.2% (95%CI 94.8-98.5) with SD Bioline and 96.7% (95%CI 95.1-97.8) with Chembio. The NPV based on various prevalence estimates for HIV with both assays was approximately 98%. Most participating women (91%) preferred dual POCTs over two single POCTs for HIV and syphilis, and healthcare providers gave favourable feedback on the utility of both assays at PHC level.
    CONCLUSIONS: Based on the need to improve antenatal screening coverage for syphilis, dual HIV/syphilis POCTs could be effectively incorporated into antenatal testing algorithms to enhance efforts towards elimination of mother-to-child transmission of these infections.
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  • 文章类型: Journal Article
    社区获得性肺炎(CAP)通常被认为是出现呼吸道症状的急诊(ED)儿童。目前尚不清楚儿童在因呼吸道疾病进行ED就诊后被诊断为CAP的频率。我们进行了一项回顾性病例对照研究,以评估2011年至2021年因呼吸系统疾病从ED出院的3个月至18岁儿童的7天CAP诊断,并在4个医院附属初级保健诊所接受护理。进行Logistic回归以评估7天CAP诊断的预测因子。七十四(0.7%,95%置信区间[CI]=0.6%,0.9%)的10329名儿童在7天内被诊断为CAP,首次就诊时发热与诊断几率增加相关(比值比[OR]=3.32,95%CI=1.75-6.28).患有呼吸系统疾病的急诊出院后,社区获得性肺炎的诊断很少见,即使是在初次评估时发热的儿童。
    Community-acquired pneumonia (CAP) is often considered for children presenting to the emergency department (ED) with respiratory symptoms. It is unclear how often children are diagnosed with CAP following an ED visit for respiratory illness. We performed a retrospective case-control study to evaluate 7-day CAP diagnosis among children 3 months to 18 years discharged from the ED with respiratory illness from 2011 to 2021 and who receive care at 4 hospital-affiliated primary care clinics. Logistic regression was performed to assess for predictors of 7-day CAP diagnosis. Seventy-four (0.7%, 95% confidence interval [CI] = 0.6%, 0.9%) of 10 329 children were diagnosed with CAP within 7 days, and fever at the index visit was associated with increased odds of diagnosis (odds ratio [OR] = 3.32, 95% CI = 1.75-6.28). Community-acquired pneumonia diagnosis after discharge from the ED with respiratory illness is rare, even among children who are febrile at time of initial evaluation.
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  • 文章类型: Journal Article
    癫痫手术对耐药癫痫患者有效,然而,其中20-40%的患者在手术后没有癫痫发作。这项研究的目的是评估线性和非线性EEG特征在预测手术后结果中的作用。我们纳入了123名在BambinoGesú儿童医院(2009年1月至2020年4月)接受癫痫手术的儿科患者。所有患者均进行了长期视频脑电图监测。我们分析了1分钟头皮发作间EEG(觉醒和睡眠),并提取了13个线性和非线性EEG特征(功率谱密度(PSD),Hjorth,近似熵,排列熵,Lyapunov和Hurst值)。我们使用逻辑回归(LR)作为特征选择过程。为了量化EEG特征与手术结果之间的相关性,我们使用了具有18个体系结构的人工神经网络(ANN)模型。LR显示α带(睡眠)的PSD之间存在显著相关性,活动指数(睡眠)和Hurst值(睡眠和清醒)与结果。54个ANN模型在预测结果方面提供了一定范围的准确性(46-65%)。在54个ANN模型中,我们发现癫痫发作结局预测的准确度更高(64.8%±7.6%),使用LR选择的功能。Alpha波段的PSD组合,活动度和Hurst值与良好的手术效果呈正相关。
    Epilepsy surgery is effective for patients with medication-resistant seizures, however 20-40% of them are not seizure free after surgery. Aim of this study is to evaluate the role of linear and non-linear EEG features to predict post-surgical outcome. We included 123 paediatric patients who underwent epilepsy surgery at Bambino Gesù Children Hospital (January 2009-April 2020). All patients had long term video-EEG monitoring. We analysed 1-min scalp interictal EEG (wakefulness and sleep) and extracted 13 linear and non-linear EEG features (power spectral density (PSD), Hjorth, approximate entropy, permutation entropy, Lyapunov and Hurst value). We used a logistic regression (LR) as feature selection process. To quantify the correlation between EEG features and surgical outcome we used an artificial neural network (ANN) model with 18 architectures. LR revealed a significant correlation between PSD of alpha band (sleep), Mobility index (sleep) and the Hurst value (sleep and awake) with outcome. The fifty-four ANN models gave a range of accuracy (46-65%) in predicting outcome. Within the fifty-four ANN models, we found a higher accuracy (64.8% ± 7.6%) in seizure outcome prediction, using features selected by LR. The combination of PSD of alpha band, mobility and the Hurst value positively correlate with good surgical outcome.
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  • 文章类型: Journal Article
    腹部扭转是一种以胃肠道异常扭转为特征的危急情况,可能导致阻塞和血管受损。及时识别和适当的管理对于预防并发症和改善患者预后至关重要。这篇全面的综述检查了解剖学,病理生理学,临床表现,和诊断评估,和腹部扭转的管理策略。非手术技术,包括扭曲和减压,以及外科手术,如腹腔镜和开放方法,正在讨论。此外,强调多学科协作和术后护理的重要性.尽管取得了重大进展,悬而未决的问题依然存在,需要进一步研究以完善诊断和治疗方法。未来的方向,包括探索新兴技术,为加强这一具有挑战性的条件的管理提供了希望。总的来说,这篇综述为临床医生提供了对腹部扭转的最佳管理的宝贵见解,旨在改善患者预后并加强临床实践。
    Abdominal volvulus represents a critical condition characterized by the abnormal twisting of the GI tract, potentially leading to obstruction and vascular compromise. Prompt recognition and appropriate management are essential to prevent complications and improve patient outcomes. This comprehensive review examines the anatomy, pathophysiology, clinical presentation, and diagnostic evaluation of, and management strategies for abdominal volvulus. Non-operative techniques, including detorsion and decompression, as well as surgical interventions, such as laparoscopic and open approaches, are discussed. Additionally, the importance of multidisciplinary collaboration and postoperative care is emphasized. Despite significant advancements, unresolved issues remain, necessitating further research to refine diagnostic and therapeutic approaches. Future directions, including exploring emerging technologies, offer promise for enhancing the management of this challenging condition. Overall, this review provides clinicians with valuable insights into the optimal management of abdominal volvulus, aiming to improve patient outcomes and enhance clinical practice.
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  • 文章类型: Case Reports
    痴呆症,特别是老年痴呆症,影响全球数百万人,其患病率随着年龄的增长而显著增加。早发性阿尔茨海默病,然而,影响65岁以下的人。不幸的是,在65岁以下的患者中诊断痴呆症是相当具有挑战性的,并且经常被延迟,missed,或错误。因此,我们介绍一个60岁女性的案例,有甲状腺功能减退病史和多奈哌齐推测的痴呆,向急诊科提出躁动,性格和行为的戏剧性变化,以及在她50多岁时开始的认知能力下降。我们讨论了进行彻底的病史和体格检查的重要性,以及对由于广泛的潜在诊断而表现出行为急剧变化的患者的全面检查。虽然某些可逆的原因,比如甲状腺功能减退,营养缺乏,和多重用药,可以及时识别和治疗,慢性神经认知障碍,如阿尔茨海默病,需要及时评估早期多学科治疗,以提高患者的预后。
    Dementia, particularly Alzheimer\'s disease, affects millions globally, with its prevalence increasing notably with age. Early-onset Alzheimer\'s disease, however, affects individuals under 65 years old. Unfortunately, diagnosing dementia in patients under 65 years old is quite challenging and is often delayed, missed, or wrong. Thus, we present the case of a 60-year-old female, with a medical history of hypothyroidism and presumed dementia on donepezil, who presented to the emergency department for agitation, dramatic change in personality and behavior, as well as cognitive decline that started in her late 50s. We discuss the importance of performing a thorough history and physical examination, as well as a comprehensive workup for patients who present with dramatic changes in behavior due to the wide range of potential diagnoses. While certain reversible causes, such as hypothyroidism, nutritional deficiencies, and polypharmacy, can be promptly identified and treated, chronic neurocognitive disorders such as Alzheimer\'s disease demand a timely evaluation for early multidisciplinary treatment to enhance patient outcomes.
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  • 文章类型: Journal Article
    该研究比较了四个参与州的大流行前出生队列和大流行出生队列之间新生儿听力筛查和后续诊断服务的接收和及时性。这项研究的结果将有助于在未来的重大公共卫生事件再次发生时告知州早期听力检测和干预(EHDI)计划。
    The study compares receipt and timeliness of newborn hearing screening and follow-up diagnostic services between the pre-pandemic birth cohort and the pandemic birth cohort in four participating states. Findings from this study will help inform state Early Hearing Detection and Intervention (EHDI) programs in the future should a major public health event occur again.
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  • 文章类型: Journal Article
    目的:大多数用于诊断和表征自闭症谱系障碍(ASD)的评估工具都是为亲自给药而开发的。2019年冠状病毒病(COVID-19)大流行导致需要调整传统的在线管理评估工具,只有很少的证据支持这种做法的有效性。
    方法:当前的探索性研究比较了考夫曼简短智力测验在线管理的分数,第二版(KBIT-2)在大流行期间使用传统的亲自给药进行后续测试得出的分数。参与者为47名儿童和青少年(M岁=9.48岁,SD=4.06;68.10%的男性)参加了ASD的远程健康诊断评估,其中包括KBIT-2的在线管理。参与者被邀请在亲自研究访问期间第二次完成KBIT-2。
    结果:Pearson的相关系数表明,在线和亲自管理之间的可靠性可以接受。尽管大多数参与者的在线和面对面得分都在一个标准差之内,结果表明,从两种模式得出的分数之间存在统计学上的显着差异。此外,19-26%的参与者(取决于所检查的领域)的得分差异超过一个标准差。值得注意的是,除一名参与者外,所有参与者年龄均在12岁以下.
    结论:研究结果表明,KBIT-2的在线管理可能适用于年龄较大的ASD儿童和青少年。然而,需要更多的研究来测试ASD儿童智力评估的在线管理.
    OBJECTIVE:  Most assessment tools used to diagnose and characterize autism spectrum disorder (ASD) were developed for in-person administration. The coronavirus disease 2019 (COVID-19) pandemic resulted in the need to adapt traditional assessment tools for online administration with only minimal evidence to support validity of such practices.
    METHODS: The current exploratory study compared scores from online administration of the Kaufman Brief Intelligence Test, Second Edition (KBIT-2) during the pandemic to scores derived from follow-up testing using traditional in-person administration. Participants were 47 children and adolescents (M age = 9.48 years, SD = 4.06; 68.10% male) who participated in a telehealth diagnostic evaluation for ASD that included online administration of the KBIT-2. Participants were invited to complete the KBIT-2 a second time during an in-person study visit.
    RESULTS: Pearson\'s correlation coefficients suggested acceptable to good reliability between online and in-person administration. Although most participants\' online and in-person scores were within one standard deviation of each other, results suggested statistically significant differences between scores derived from the two modalities. Additionally, 19-26% of participants (depending on domain examined) had scores that differed by more than one standard deviation. Notably, all but one of these participants was under the age of 12 years.
    CONCLUSIONS: Findings suggest that online administration of the KBIT-2 is likely appropriate for older children and adolescents with ASD. However, additional research is needed to test online administration of intellectual assessments for children with ASD.
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