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COVID-19-associated pulmonary aspergillosis: a case report from the COVID-19 surveillance program. COVID-19相关肺曲霉病:来自COVID-19监测规划的病例报告
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/31
Mohamed Aldaas
A 72-year-old male was brought to the hospital following a motorcycle crash and was admitted for multiple trauma management. His initial course of hospitalization was complicated by mild hypoxemia and altered mental status. Respiratory workup and imaging were consistent with SARS-CoV-2 pneumonia. He completed a five-day course of remdesivir and a ten-day course of dexamethasone. Twenty days later, he developed a low-grade fever. His chest computerized tomography (CT) showed gas and fluid containing parenchymal collection in the anteromedial right middle lobe measuring up to 4.8 cm, most consistent with a pulmonary abscess. Antimicrobial treatment was started. The patient became hypoxic and was intubated and mechanically ventilated. Bronchoalveolar lavage fluid was positive for galactomannan assay, a diagnostic marker for possible aspergillosis. A repeat chest CT showed a cavitary lesion with a positive air crescent sign, a common CT finding of invasive pulmonary aspergillosis. The patient was diagnosed with COVID-19-associated pulmonary aspergillosis and was started on antifungal treatment. He improved clinically and was successfully extubated.
一名72岁男性在摩托车撞车后被送往医院,接受多处创伤治疗。他最初的住院过程是复杂的轻度低氧血症和精神状态改变。呼吸道检查和影像学符合SARS-CoV-2肺炎。他完成了5天的瑞德西韦疗程和10天的地塞米松疗程。20天后,他发了低烧。胸部计算机断层扫描(CT)显示右中叶前内侧有气体和含实质的积液,直径达4.8厘米,与肺脓肿最相符。开始抗菌治疗。患者出现缺氧,需要插管和机械通气。支气管肺泡灌洗液半乳甘露聚糖试验阳性,这是一种可能的曲霉病诊断标志物。胸部重复CT示空腔性病变伴空气新月征,是侵袭性肺曲霉病的常见CT表现。患者被诊断为covid -19相关肺曲霉病,并开始接受抗真菌治疗。他的临床情况有所改善,并成功拔管。
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引用次数: 1
Deep Convolutional Neural Networks for Accurate Diagnosis of COVID-19 Patients Using Chest X-Ray Image Databases from Italy, Canada, and the USA 基于意大利、加拿大和美国胸部x线图像数据库的深度卷积神经网络对COVID-19患者的准确诊断
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/34
A. A. Salama, Samy H. Darwish, Samir M. Abdel-Mageed, Radwa A Meshref, E. Mohamed
Introduction: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), famously known as COVID-19, has quickly become a global pandemic. Chest X-ray (CXR) imaging has proven reliable, fast, and cost-effective for identifying COVID-19 infections, which presents with atypical unilateral patchy infiltration in the lungs like typical pneumonia. We employed the deep convolutional neural network (DCNN) ResNet-34 to detect and classify CXR images from patients with COVID-19, other viral pneumonias, and normal controls. Methods: We created a single database, containing 781 source CXR images for COVID-19 (n=240), other viral pneumonias (n=274), and normal controls (n=267) from four different international sub-databases: the Società Italiana di Radiologia Medica e Interventistica (SIRM), the GitHub Database, the Radiology Society of North America (RSNA), and the Kaggle Chest X-Ray Database. Images were resized, normalized without any augmentation, and arranged in m batches of 16 images before supervised training, testing, and cross-validation of the DCNN classifier. Results: The ResNet-34 had a diagnostic accuracy as of the receiver operating characteristic (ROC) curves of the truepositive rate versus the false-positive rate with the area under the curve (AUC) of 1.00, 0.99, and 0.99, for COVID-19, other viral pneumonia, and normal control CXR images, respectively. This accuracy implied identical high sensitivity and specificity values of 100%, 99%, and 99% for the three groups, respectively. ResNet-34 achieved identical sensitivity and specificity of 100%, 99.6%, and 98.9% for classifying CXR images of the three groups, with an overall accuracy of 99.5% for the testing subset for diagnosis/prognosis. Conclusion: Based on this high classification precision, we believe that the output activation map of the final layer of the ResNet-34 is a powerful tool for the accurate diagnosis of COVID-19 infection from CXR images.
简介:严重急性呼吸综合征冠状病毒2 (SARS-CoV-2),即众所周知的COVID-19,已迅速成为全球大流行。事实证明,胸部x线(CXR)成像在识别COVID-19感染方面是可靠、快速和具有成本效益的,这种感染表现为肺部非典型的单侧斑片状浸润,如典型肺炎。我们使用深度卷积神经网络(DCNN) ResNet-34对COVID-19患者、其他病毒性肺炎患者和正常对照组的CXR图像进行检测和分类。方法:我们创建了一个单一的数据库,包含781张来自四个不同国际子数据库的CXR图像,包括COVID-19 (n=240)、其他病毒性肺炎(n=274)和正常对照(n=267),这些子数据库分别是:意大利放射医学介入学会(SIRM)、GitHub数据库、北美放射学会(RSNA)和Kaggle胸部x射线数据库。在对DCNN分类器进行监督训练、测试和交叉验证之前,对图像进行调整大小、归一化(不进行任何增强),并将16张图像分成m批排列。结果:ResNet-34对COVID-19、其他病毒性肺炎和正常对照的受试者工作特征(ROC)曲线的诊断准确率分别为1.00、0.99和0.99,对假阳性率和真阳性率的诊断准确率较高。这种准确性意味着三组的高灵敏度和特异度分别为100%、99%和99%。ResNet-34对三组CXR图像分类的灵敏度和特异性相同,分别为100%、99.6%和98.9%,对诊断/预后测试子集的总体准确率为99.5%。结论:基于如此高的分类精度,我们认为ResNet-34最后一层的输出激活图是从CXR图像中准确诊断COVID-19感染的有力工具。
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引用次数: 1
Why Should People Use Face Masks in the Time of COVID? The JRI Position 为什么人们在COVID期间要戴口罩?JRI职位
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/27
J. Bordón
The COVID-19 pandemic is likely an epic reshaping of human behavior across the globe. Beyond our knowledge of previous pandemics and infections, COVID19 demanded extraordinary changes in our lifestyle. The virus spread rapidly across the globe due to its high transmissibility, and the extraordinary death toll was unprecedented. In the early stages of this pandemic, there was a sense of powerlessness leading us to isolation from public gathering. Under the leadership of the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC), and other organizations, the predominant response was to use preventive measures, including social distancing, hand washing and face masks. These measures have been very effective in preventing infection and containing the spread of infection in previous epidemics and pandemics. Ongoing protective measures are critical to mitigate the pandemic; however, controversies persist concerning the use of face masks as a protection measure against COVID.
2019冠状病毒病大流行可能是对全球人类行为的一次史诗般的重塑。除了我们对以往大流行和感染的了解之外,2019冠状病毒病还要求我们在生活方式上做出巨大改变。由于其高传播性,该病毒在全球迅速传播,死亡人数空前。在这次大流行的早期阶段,有一种无能为力的感觉,导致我们与公众集会隔离。在世界卫生组织(WHO)、疾病控制与预防中心(CDC)和其他组织的领导下,主要的应对措施是采取预防措施,包括保持社交距离、洗手和戴口罩。在以前的流行病和大流行病中,这些措施在预防感染和遏制感染传播方面非常有效。持续采取的保护措施对于缓解大流行至关重要;但是,对于是否使用口罩作为新冠肺炎的防护措施,仍存在争议。
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引用次数: 0
The Population Affected by the Syndemic of COVID-19 and Poverty is More Likely to be Hospitalized with SARS-CoV-2 Pneumonia 受新冠肺炎疫情和贫困影响的人群更易因新冠肺炎住院
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/16
J. Ramirez
Background: Lockdown measures to control COVID-19 have exacerbated the poverty epidemic. We hypothesized that the synergistic interaction of COVID-19 and poverty epidemics favors the development of more severe forms of COVID-19 in the population living in poverty. To test this hypothesis, we assessed whether an ecological association exists between the geographic distribution of hospitalized patients with SARS-CoV-2 pneumonia and markers of poverty in the city of Louisville, KY. Methods: Using the geomasked home addresses of hospitalized patients with SARS-CoV-2 pneumonia in the city of Louisville, a kernel density heatmap was created. Kuldorff’s spatial scan statistic was used to calculate areas of increased risk for SARS-CoV-2 pneumonia hospitalization. Heat maps were created for census tract–level demographics according to income, age, race, and ethnicity to assess whether an ecological association exists with the spatial distribution of SARSCoV-2 pneumonia hospitalization. Results: Four areas of increased risk of hospitalization due to SARS-CoV-2 pneumonia were identified in the western and central sections of the city, with relative risks (RRs) ranging from 2.3 (95% confidence interval (CI): 1.7–3.0) to 3.2 (95% CI: 2.1–5.0) (p<0.001 for each area). Most high-risk areas were associated with areas of the city with low-income populations and black and Hispanic communities but were not associated with areas of older adults. Conclusion: Residents from low-income areas are almost three times more likely to develop SARS-CoV-2 pneumonia requiring hospitalization. Current efforts to decrease the number of COVID-19 hospitalizations through vaccination of populations at risk should be concentrated in city areas with a low-income level population. ULJRI | https://ir.library.louisville.edu/jri/vol5/iss1/16 1 ULJRI The Syndemic of COVID-19 and Poverty
背景:为控制COVID-19而采取的封锁措施加剧了贫困流行。我们假设,COVID-19和贫困流行病的协同相互作用有利于在贫困人口中发展更严重的COVID-19。为了验证这一假设,我们评估了肯塔基州路易斯维尔市住院的SARS-CoV-2肺炎患者的地理分布与贫困指标之间是否存在生态关联。方法:利用路易斯维尔市SARS-CoV-2肺炎住院患者的地理地址,制作核密度热图。利用Kuldorff空间扫描统计量计算SARS-CoV-2肺炎住院风险增加的地区。根据收入、年龄、种族和民族为人口普查区水平的人口统计数据创建了热图,以评估SARSCoV-2肺炎住院的空间分布是否存在生态关联。结果:在武汉市西部和中部确定了4个SARS-CoV-2肺炎住院风险增加区域,相对危险度(rr)为2.3(95%置信区间(CI): 1.7 ~ 3.0) ~ 3.2 (95% CI: 2.1 ~ 5.0)(每个区域p<0.001)。大多数高风险地区与城市低收入人群和黑人和西班牙裔社区有关,但与老年人地区无关。结论:低收入地区居民发生SARS-CoV-2肺炎需要住院治疗的可能性几乎是其3倍。目前通过对高危人群接种疫苗来减少COVID-19住院人数的努力应集中在低收入人口的城市地区。ULJRI | https://ir.library.louisville.edu/jri/vol5/iss1/16 1新冠肺炎疫情与贫困
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引用次数: 0
RSV-induced Guillain–Barré Syndrome rsv -诱发吉尔伯特综合症
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/21
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引用次数: 0
University of Louisville International Travel Clinic: Pivoting During the COVID-19 Pandemic 路易斯维尔大学国际旅行诊所:COVID-19大流行期间的枢纽
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/30
Dawn Balcom
The Coronavirus Disease 2019 (COVID-19) pandemic has had a dramatic impact on international travel. According to the US Travel Association, travel expenditure in 2020 declined by 42%, approximately $500 billion, when compared with 2019.[1] Dwindling international travel paralleled a concomitant decline in the need for services provided by international travel clinics. Nonetheless, relationships between travel clinics and their clientele blossomed during this period. Having expertise in specialized preventive care and public health, travel clinics are equipped with the knowledge of infectious diseases to establish new avenues for patient and community support during the pandemic and beyond. In this perspective, approaches taken at the Division of Infectious Diseases International Travel Clinic at the University of Louisville (UL Travel Clinic) will be used as a model, demonstrating avenues in which travel clinic services might pivot to meet community needs during the ongoing COVID-19 pandemic and beyond.
2019冠状病毒病(COVID-19)大流行对国际旅行产生了巨大影响。根据美国旅游协会的数据,与2019年相比,2020年的旅游支出下降了42%,约为5000亿美元。[1]国际旅行减少的同时,对国际旅行诊所提供的服务的需求也随之减少。尽管如此,旅行诊所和他们的客户之间的关系在这一时期蓬勃发展。旅行诊所拥有专门预防保健和公共卫生方面的专门知识,具备传染病知识,可以在大流行期间和以后为病人和社区提供支持开辟新的途径。从这个角度来看,路易斯维尔大学传染病部国际旅行诊所(UL旅行诊所)采取的方法将被用作一个模型,展示旅行诊所服务在2019冠状病毒病大流行期间和以后可能转向满足社区需求的途径。
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引用次数: 0
Bridging the Inequality Gap Among Marginalized Populations in Africa Amid the COVID-19 Pandemic: A Call for Responsible Cooperation 在2019冠状病毒病大流行期间缩小非洲边缘人群的不平等差距:呼吁进行负责任的合作
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/15
A. Afolabi, O S Ilesanmi, T. Afolabi
The index case of Coronavirus disease 2019 (COVID19) was reported by the World Health Organization in Wuhan city, China, during the fall of 2019.[1] Since this period, 150,708,255 COVID-19 cases have been recorded globally as of April 29, 2021, with Africa accounting for 4,573,989 cases out of the global total.[2] The evolving community transmission of COVID-19 has increasingly placed certain groups at disproportionate risk.[3] Global inequity is evident in the unequal distribution of material and economic resources across different population groups as a result of exploitation and unequal living standards, as well as differences in environmental conditions and geographical location.[4] The COVID-19 pandemic has further widened the existing global disparity, with a disproportionate increase in the vulnerability of marginalized population groups.[5] These include the urban slum dwellers, incarcerated individuals, and internally displaced persons, among others. Therefore, this opinion piece will examine the COVID-19 pandemic in an inequitable world and suggest strategies to minimize these inequalities.
2019年秋季,世界卫生组织在中国武汉市报告了2019冠状病毒病(covid - 19)的指示病例。[1]自此以来,截至2021年4月29日,全球共记录了150,708,255例COVID-19病例,其中非洲占全球总数的4,573,989例。[2]不断演变的COVID-19社区传播日益使某些群体面临不成比例的风险。[3]由于剥削和生活水平的不平等,以及环境条件和地理位置的差异,不同人口群体之间物质和经济资源的不平等分配是全球不平等的明显表现。[4]2019冠状病毒病大流行进一步扩大了现有的全球差距,边缘人群的脆弱性不成比例地增加。[5]这些人包括城市贫民窟居民、被监禁者和国内流离失所者等。因此,这篇评论文章将审视一个不公平世界中的COVID-19大流行,并提出减少这些不平等的战略建议。
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引用次数: 0
Lack of Association of the ABO Blood Group with COVID-19 risk and Severity in Hospitalized Patients in Louisville, KY 肯塔基州路易斯维尔住院患者ABO血型与COVID-19风险和严重程度缺乏关联
Pub Date : 2021-01-01 DOI: 10.18297/JRI/VOL5/ISS1/1
R. Fernandez-Botran
Background: The potential association of the ABO blood group with the risk of COVID-19 and its severity has attracted a lot of interest since the start of the pandemic. While a number of studies have reported an increased risk associated with blood type A and a reduced risk with type O, other studies have did not found a significant effect. This study aimed to define the prevalence of different ABO blood groups in hospitalized COVID-19 patients in the Louisville, KY area and to investigate whether an association exists between the blood group and disease severity. Methods: This was a retrospective observational study of 380 patients with SARS-CoV-2 infection hospitalized to eight of the adult hospitals in the city of Louisville. Patients were divided into four different groups according to their ABO blood type. Demographic characteristics and clinical variables, including laboratory data as well as clinical outcomes were compared. Results: Type O was the most common blood group among the hospitalized patients (51%) followed by type A (31%), B (14%) and AB (4%). The observed blood group distribution among the patients was not significantly different from the distribution expected when compared to a population of similar racial/ethnic composition. No significant associations were found between the blood group and comorbidities, inflammatory biomarkers as well as with recorded outcomes, including the mortality rate and the length of the hospital stay. Conclusions: The data from hospitalized patients in Louisville is is not consistent with the ABO blood group having a significant effect as a risk or severity factor for COVID-19, but it is representative in COVID-19 or its severity of its prevalence among different racial/ethnic populations.
背景:自COVID-19大流行开始以来,ABO血型与COVID-19风险及其严重程度的潜在关联引起了人们的极大兴趣。虽然一些研究报告了a型血的风险增加和O型血的风险降低,但其他研究并没有发现显著的影响。本研究旨在确定肯塔基州路易斯维尔地区住院的COVID-19患者中不同ABO血型的患病率,并调查血型与疾病严重程度之间是否存在关联。方法:对美国路易斯维尔市8家成人医院收治的380例SARS-CoV-2感染患者进行回顾性观察研究。根据ABO血型将患者分为四组。比较人口学特征和临床变量,包括实验室数据和临床结果。结果:住院患者中O型血最多(51%),其次为A型(31%)、B型(14%)和AB型(4%)。与相似种族/民族组成的人群相比,观察到的患者血型分布与预期的分布没有显著差异。没有发现血型与合并症、炎症生物标志物以及记录的结果(包括死亡率和住院时间)之间存在显著关联。结论:来自路易斯维尔市住院患者的数据与ABO血型作为COVID-19风险或严重程度因素的显著影响并不一致,但在不同种族/民族人群中COVID-19患病率或其严重程度方面具有代表性。
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引用次数: 2
No difference in clinical outcomes for African American and White patients hospitalized with SARS-CoV-2 pneumonia in Louisville, Kentucky 肯塔基州路易斯维尔市非裔美国人和白人SARS-CoV-2肺炎住院患者的临床结果无差异
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/25
J. Ramirez
Introduction: Current literature indicates that African American individuals are at increased risk of becoming infected with the SARS-CoV-2 virus and suffer higher SARS-CoV-2-related mortality rates. However, there is a lack of consensus as to how the clinical outcomes of African American patients differ from those of other groups. The objective of this study was to define the clinical outcomes of African American and White hospitalized patients with SARS-CoV-2 community-acquired pneumonia (CAP) in Louisville, Kentucky. Methods: This was a retrospective cohort study of hospitalized patients with SARS-CoV-2 CAP at eight hospitals in Louisville, Kentucky. Severity of CAP at time of hospitalization was evaluated using the pneumonia severity index (PSI), CURB-65 score, SARS-CoV-2 viral load, and the World Health Organization severity score. The following thirteen clinical outcomes were compared: discharge alive to home, time to home discharge, admission to the ICU, length of ICU stay, need for invasive mechanical ventilation (IMV), duration of IMV, development of acute respiratory distress syndrome (ARDS), development of septic shock, need for vasopressors, development of cardiovascular events, time to cardiovascular events, in-hospital mortality, and time to death. Results: A total of 541 patients were eligible for this study, 343 White (63%) and 198 African American (37%). None of the thirteen clinical outcomes were significantly different between the two groups. Conclusion: This study indicates that African American and White patients do not have different clinical outcomes after the point of hospitalization due to SARS-CoV-2 CAP. ULJRI | https://ir.library.louisville.edu/jri/vol5/iss1/25 1 ULJRI No Difference in SARS-CoV-2 Pneumonia Outcomes for African American and White Patients
目前的文献表明,非洲裔美国人感染SARS-CoV-2病毒的风险增加,并且与SARS-CoV-2相关的死亡率更高。然而,对于非裔美国患者的临床结果与其他人群的临床结果有何不同,目前还缺乏共识。本研究的目的是确定肯塔基州路易斯维尔非裔美国人和白人住院患者的SARS-CoV-2社区获得性肺炎(CAP)的临床结局。方法:对肯塔基州路易斯维尔市8家医院收治的SARS-CoV-2 CAP住院患者进行回顾性队列研究。使用肺炎严重程度指数(PSI)、CURB-65评分、SARS-CoV-2病毒载量和世界卫生组织严重程度评分评估住院时CAP的严重程度。比较以下13项临床指标:存活出院、出院时间、入住ICU、ICU住院时间、有创机械通气需求(IMV)、IMV持续时间、急性呼吸窘迫综合征(ARDS)的发生、感染性休克的发生、血管加压药物的需求、心血管事件的发生、心血管事件发生时间、住院死亡率和死亡时间。结果:共有541名患者符合本研究条件,其中343名白人(63%)和198名非洲裔美国人(37%)。两组间13项临床结果均无显著差异。结论:本研究提示非裔美国人和白人患者因SARS-CoV-2感染而入院后的临床转归无差异。非裔美国人和白人患者的SARS-CoV-2肺炎转归无差异
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引用次数: 0
Pulmonary Inflammation and Injury Triggered by Spine Surgery in Recovered COVID-19 Patients Demand Consideration COVID-19康复患者脊柱手术引发肺部炎症和损伤需要考虑
Pub Date : 2021-01-01 DOI: 10.18297/jri/vol5/iss1/28
L. R. Lopes, S. Kasinski
Patients with COVID-19, caused by SARS-CoV-2 infection, have presented with fever, cough, dyspnea, pneumonia, acute lung injury, and other respiratory symptoms.[1] An inflammatory overreaction, called a cytokine storm, has also been associated with severe COVID-19.[2] Cytokine storm involves elevated levels of circulating cytokines and hyperactivation of immune system cells.[3] Patients with mild COVID-19 can also produce elevated levels of pro-inflammatory cytokines.[4] Furthermore, those patients present dysregulated expression of genes related to immune functions.[4] Consequently, the immune disorder can hinder a return to homeostasis, leading to multiorgan dysfunction or even multiorgan failure.[3] The pathophysiological consequences of cytokine storm also include circulatory coagulopathy and acute respiratory distress syndrome.[3] In this context, the hyper-inflammatory state and physiological disruption caused by SARSCoV-2 infection hinder the patient’s recovery from physiological stress and injury caused by surgery procedures, for example.
由SARS-CoV-2感染引起的COVID-19患者表现为发热、咳嗽、呼吸困难、肺炎、急性肺损伤等呼吸道症状被称为细胞因子风暴的炎症过度反应也与严重的COVID-19有关细胞因子风暴包括循环细胞因子水平升高和免疫系统细胞的过度激活轻度COVID-19患者也会产生高水平的促炎细胞因子此外,这些患者表现出与免疫功能相关的基因表达失调因此,免疫紊乱会阻碍机体恢复体内平衡,导致多器官功能障碍甚至多器官衰竭细胞因子风暴的病理生理后果还包括循环凝血功能障碍和急性呼吸窘迫综合征在这种情况下,SARSCoV-2感染引起的高炎症状态和生理破坏阻碍了患者从生理应激和手术过程引起的损伤中恢复。
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引用次数: 0
期刊
The University of Louisville journal of respiratory infections
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