A rare case of metastatic pancreatic adenocarcinoma presenting as a pulmonary embolism from nonbacterial thrombotic endocarditis

Nonbacterial thrombotic endocarditis (NBTE) also called, "Marantic endocarditis" occurs due to an underlying hypercoagulable state causing tissue damage and upregulation of the coagulation cascade, with noninfective vegetation formation on heart valves. Mitral and aortic valves are most commonly involved. NBTE is rare, with an incidence of 1.6%, with 65 cases identified during a 10-year autopsy analysis. The most common malignancies associated with NBTE include gynecological cancers, lung cancer, gastric cancer, and pancreatic cancers with adenocarcinoma histology being the greatest risk. Herein, we present a rare case of a 55-year-old male who presented with acute hypoxic respiratory failure secondary to pulmonary embolism due to nonbacterial thrombotic endocarditis. He was found to have advanced pancreatic adenocarcinoma on further investigation of the 2.2 cm hypodense cystic mass in the distal pancreatic body and tail, and complex liver masses which were incidentally found on computed tomography angiography (CTA) of the chest. This is a rare phenomenon and clinicians have to consider the hypercoagulable state associated with cancers, particularly pancreatic adenocarcinoma, and the risk of NBTE.     

Beyond broadband: Towards a spectral decomposition of electroencephalography microstates

Originally applied to alpha oscillations in the 1970s, microstate (MS) analysis has since been used to decompose mainly broadband electroencephalogram (EEG) signals (e.g., 1–40 Hz). We hypothesised that MS decomposition within separate, narrow frequency bands could provide more fine‐grained information for capturing the spatio‐temporal complexity of multichannel EEG. In this study, using a large open‐access dataset (n = 203), we first filtered EEG recordings into four classical frequency bands (delta, theta, alpha and beta) and thereafter compared their individual MS segmentations using mutual information as well as traditional MS measures (e.g., mean duration and time coverage). Firstly, we confirmed that MS topographies were spatially equivalent across all frequencies, matching the canonical broadband maps (A, B, C, D and C′). Interestingly, however, we observed strong informational independence of MS temporal sequences between spectral bands, together with significant divergence in traditional MS measures. For example, relative to broadband, alpha/beta band dynamics displayed greater time coverage of maps A and B, while map D was more prevalent in delta/theta bands. Moreover, using a frequency‐specific MS taxonomy (e.g., ϴA and αC), we were able to predict the eyes‐open versus eyes‐closed behavioural state significantly better using alpha‐band MS features compared with broadband ones (80 vs. 73% accuracy). Overall, our findings demonstrate the value and validity of spectrally specific MS analyses, which may prove useful for identifying new neural mechanisms in fundamental research and/or for biomarker discovery in clinical populations.     

基于早期预警评分应用于子痫前期患者的效果

目的 探讨基于早期预警评分应用于子痫前期患者的效果及对母婴结局的影响。方法 将2019年1月—2020年12月我院收治的80例子痫前期患者纳入研究,按照随机数字表法分为两组,对照组40例予以常规妇产科干预,研究组40例予以基于早期预警评分的护理。比较两组干预前后心理状态、实施救治所需时间、终止妊娠时孕周、住院时间、血压、24 h尿蛋白量以及母婴结局。结果 研究组HAMD、HAMA评分低于对照组（P <0.05）。研究组实施救治所需时间、住院时间短于对照组,终止妊娠时孕周长于对照组（P <0.05）。研究组血压和24 h尿蛋白量低于对照组（P <0.05）。研究组产后出血、胎盘早剥、肝肾损伤发生率低于对照组（P <0.05）。研究组胎儿生长受限、胎儿窘迫、新生儿死亡、新生儿窒息发生率均低于对照组（P <0.05）。结论 子痫前期患者应用基于早期预警评分可有效改善患者心理状态,缩短患者的救治时间,延长孕周,控制病情进展,缩短住院时间,改善母婴结局。     

Diagnostic approach to obstructive sleep apnea in children

Obstructive sleep apnea syndrome (OSAS) in childhood is a disorder of breathing during sleep characterized by prolonged partial upper airway obstruction and/or intermittent complete obstruction that disrupts normal ventilation during sleep and normal sleep patterns. A spectrum of severity related to the degree of upper airway resistance, to the duration of the disease, to the presence or absence of hypoxemia episodes, and to certain clinical features can be described. Symptomatic children may not fit the criteria for diagnosis established for OSAS in adults; age-specific standards are needed. Both anatomical factors that increase upper airway resistance, e.g. adenotonsillar hypertrophy, and functional processes that decrease upper airway tone, e.g. REM sleep, contribute to the pathogenesis of pediatric OSAS. Sequelae of OSAS in children include neurobehavioural abnormalities, stunting of growth, and cor pulmonale. Both the history and physical examination should target the sleeping child; parents often report loud snoring, difficulty breathing, and obstructive apneas. The gold standard investigation to establish the diagnosis and to quantitate disease severity is overnight polysomnography. Home cardiopulmonary sleep studies have been shown to be an accurate and practical alternative to overnight laboratory polysomnography for routine evaluation of non-complex children with adenotonsillar hypertrophy. Children with documented severe OSAS are at increased post-operative risk for airway compromise and should be observed and monitored carefully. Adenotonsiliectomy is the most common therapy for OSAS in children; as a second-line treatment, the use of nasal CPAP in children with OSAS has been very successful in experienced hands.     

非贫困大学生的贫困心理现象不容忽视

贫困心理现象不是贫困大学生特有的,非贫困生中也存在贫困心理现象。非贫困生的贫困心理是其对贫困的错误认识造成的,在错误的思想影响下,他们出现一些错误的行为。假贫困生的产生与其高于贫困生的基本生活需求、奢侈生活、攀比心理以及贫困生审查工作漏洞等有关。解决办法是加强贫困生的界定研究,完善审查制度,建立特殊校园经济区以及加强思想政治和心理健康教育等。     

发酵监控系统上位计算机软件编程研究

提出了利用上位机参与实时控制,综合分析在线参数、离线参数和间接参数,辅助发酵过程工艺研究和优化控制,并给出了上位机软件包的部分源程序及框图。该软件包对发酵工艺人员进一步了解菌种的遗传特性、细胞代谢调节和反应器工程特性方面有较大帮助。     

前列地尔联合甲泼尼龙针改善血栓前状态治疗AECOPD临床分析

目的观察前列地尔联合甲泼尼龙对AECOPD炎症以及血栓前状态的影响,并分析其临床疗效。方法选取2011年8月~2013年8月于舟山市妇幼保健院进行治疗的AECOPD患者100例,随机分成甲泼尼龙治疗对照组和前列地尔联合甲泼尼龙治疗观察组,每组50例。IL-6、TNF-α表达的检测使用ELISA法。比较两组的全血高切黏度、全血低切黏度、血浆黏度等血液流变指标,以及临床疗效和不良反应发生率。结果治疗前对照组和观察组全血高切黏度、全血低切黏度、血浆黏度差异无统计学意义(P>0.05)。治疗后两组均出现显著减低(P<0.05),但观察组的减低效应显著优于对照组(P<0.05)。治疗前观察组和对照组IL-6、TNF-α表达水平差异无统计学意义(P>0.05),治疗后IL-6和TNF-α均显著减低(P<0.05和P<0.01),但治疗后IL-6、TNF-α表达水平在观察组显著低于对照组(P<0.05)。对照组咳嗽缓解时间、呼吸困难消失时间、啰音消失时间以及住院时间分别为5.74±1.62、3.68±0.76、5.27±1.24、9.74±2.28天,显著长于观察组的3.76±1.03、2.53±0.58、3.36±0.88、7.22±1.69天(P<0.05)。观察组临床治疗有效率为90.0%,显著优于对照组的76.0%(P<0.05)。结论前列地尔联合甲泼尼龙治疗AECOPD,可以显著改善患者的血栓前状态,抑制炎性反应,临床安全、有效,值得推广使用。     

基于循证医学的产妇手术切口护理对剖宫产切口美观性及情绪状态的影响

目的 探讨基于循证医学的切口护理模式对剖宫产切口美观性及情绪状态的影响。方法 选取 2022年6月-2023年6月南京医科大学附属妇产医院/南京市妇幼保健院行剖宫产的102例初产妇作为研究对 象,随机分为对照组和观察组,每组51例。对照组实施常规护理,观察组则在此基础上予以基于循证医 学的切口护理模式,比较两组患者瘢痕评价量表（PSAS）、观察者瘢痕评价量表（OSAS）、皮肤科生 活质量指数（DLQI）、Zung抑郁自评量表（Zung-SDS）等级以及Zung焦虑自评量表（Zung-SAS）。 结果 观察组PSAS、OSAS、DLQI各维度评分及总分低于对照组（P ＜0.05）;观察组Zung-SDS抑郁等 级、（Zung-SAS）焦虑等级优于对照组（P＜0.05）。结论 基于循证医学的产妇手术切口护理有助于改善 术后切口美观度,提高生活质量,减轻其心理压力,降低抑郁和焦虑的发生率。     

Dynamic Hotelling duopoly with linear transportation costs

I investigate a spatial duopoly model with linear transportation costs as a differential game where product differentiation is the result of firms' R&D investments. Two related results obtain, i.e. (i) the steady‐state R&D investment (product differentiation) is negatively (positively) related to the cost of capital and time discounting; and (ii) if time discounting and the cost of capital are sufficiently high, the amount of differentiation observed in steady state is sufficiently large to ensure the existence of a unique pure‐strategy price equilibrium with prices above marginal cost. The range of time discounting wherein the game produces a price equilibrium in pure strategies is wider under the closed loop solution than under the open loop solution. Copyright © 2011 John Wiley & Sons, Ltd.