early detection of cancer

癌症的早期检测
  • 文章类型: Editorial
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  • 文章类型: Case Reports
    背景:多发性内分泌肿瘤(MENs)是一组涉及多个内分泌腺的遗传性疾病,他们的患病率很低。MEN1型(MEN1)临床表现多样,主要累及甲状旁腺,胃肠道,胰腺和垂体,很容易错过临床诊断。
    方法:我们介绍了一例早期检测到MEN1的患者。一名中年男性因反复腹痛和腹泻入院。入院时的血液检查显示高钙血症和低磷酸盐血症,甲状旁腺的发射计算机断层扫描显示甲状旁腺功能亢进病变。胃镜检查结果提示十二指肠膨出和溃疡。超声内镜检查显示十二指肠球部有低回声病变。进一步的血液检查显示血清胃泌素水平升高。进行了手术,手术标本的病理分析显示甲状旁腺切除术后的甲状旁腺腺瘤和十二指肠球部切除术后的神经内分泌肿瘤。从发病到MEN1明确诊断的时间仅为大约1年。
    结论:对于出现胃肠道症状并伴有高钙血症和低磷血症的患者,临床医生需要警惕MEN1的可能性.
    BACKGROUND: Multiple endocrine neoplasias (MENs) are a group of hereditary diseases involving multiple endocrine glands, and their prevalence is low. MEN type 1 (MEN1) has diverse clinical manifestations, mainly involving the parathyroid glands, gastrointestinal tract, pancreas and pituitary gland, making it easy to miss the clinical diagnosis.
    METHODS: We present the case of a patient in whom MEN1 was detected early. A middle-aged male with recurrent abdominal pain and diarrhea was admitted to the hospital. Blood tests at admission revealed hypercalcemia and hypophosphatemia, and emission computed tomography of the parathyroid glands revealed a hyperfunctioning parathyroid lesion. Gastroscopy findings suggested a duodenal bulge and ulceration. Ultrasound endoscopy revealed a hypoechoic lesion in the duodenal bulb. Further blood tests revealed elevated levels of serum gastrin. Surgery was performed, and pathological analysis of the surgical specimens revealed a parathyroid adenoma after parathyroidectomy and a neuroendocrine tumor after duodenal bulbectomy. The time from onset to the definitive diagnosis of MEN1 was only approximately 1 year.
    CONCLUSIONS: For patients who present with gastrointestinal symptoms accompanied by hypercalcemia and hypophosphatemia, clinicians need to be alert to the possibility of MEN1.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    皮肌炎(DM)和多发性肌炎是特发性炎症性肌病(IIMs),与实体器官恶性肿瘤最相关,和较不常见的血液恶性肿瘤。我们讨论与弥漫性大B细胞淋巴瘤相关的DM病例。随后回顾了有关发病机制的文献,临床课程,治疗,和预后。讨论了IIM患者潜在淋巴增生性疾病(LPDs)的诊断和管理的各种挑战。该案例表明了对IIM和LPD之间关联保持警惕的重要性。讨论了IIM患者的癌症筛查,包括最近出版的IIM相关癌症筛查国际指南。需要更多的研究来解决IIM中癌症筛查的知识空白。
    Dermatomyositis (DM) and polymyositis are idiopathic inflammatory myopathies (IIMs), most associated with solid organ malignancies, and less commonly hematological malignancies. We discuss a case of DM associated with diffuse large B-cell lymphoma, followed by a review of literature on the pathogenesis, clinical course, treatment, and prognosis. Various challenges with the diagnosis and management of underlying lymphoproliferative disorders (LPDs) in patients with IIM are discussed. The case demonstrates the importance of being vigilant of the association between IIM and LPD. Cancer screening in patients with IIM is discussed, including the recently published International Guideline for IIM-Associated Cancer Screening. More research is required to address knowledge gaps in cancer screening in IIM.
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  • 文章类型: Journal Article
    可以通过涉及教育的综合计划来预防宫颈癌,意识创造,疫苗接种,筛选,和早期治疗。卫生工作者在实现这一目标方面发挥着至关重要的作用。因此,他们必须充分具备必要的条件知识,因为他们向客户提供信息。
    这项研究确定了知识,感知,以及加纳中部地区女护士和助产士对宫颈癌的筛查做法。
    对护士和助产士进行了定量描述性横断面调查。应用了便利抽样技术,得出了在中部地区格蕾丝圣母医院工作的130名女护士和助产士的代表性样本,加纳。使用自我管理问卷从参与者那里收集数据。使用SPSS第20版对数据进行分析,并使用比例等标准描述性统计数据对调查数据进行汇总。
    几乎所有的护士(99%)都听说过宫颈癌。大多数(97.1%)的受访者认为宫颈癌是可以预防的,67.6%的人也认为这是无法治愈的。几乎一半(42.2%)的受访者认为自己没有患宫颈癌的风险。因此,只有11.8%的护士曾筛查过宫颈癌.然而,大多数(92.2%)愿意向其他人推荐筛查。
    这项研究的受访者对宫颈癌有一定的了解,但对推荐的筛查方法的支持度较低。因此,必须实施策略以增加女护士的筛查实践。
    UNASSIGNED: Cervical cancer prevention can be achieved through comprehensive programs involving education, awareness creation, vaccination, screening, and early treatment. Health workers have a vital role to play in achieving this. Hence, they must be adequately equipped with the requisite knowledge of the condition since they provide information to their clients.
    UNASSIGNED: This study determined the knowledge, perception, and screening practices on cervical cancer among female nurses and midwives in the Central Region of Ghana.
    UNASSIGNED: A quantitative descriptive cross-sectional survey amongst nurses and midwives was used for the study. A convenience sampling technique was applied to yield a representative sample of 130 female nurses and midwives working in Our Lady of Grace Hospital in the Central Region, Ghana. Data was collected from the participants using a self-administered questionnaire. The data was analysed using SPSS version 20, and standard descriptive statistics such as proportions were used to summarize the survey data.
    UNASSIGNED: Almost all the nurses (99%) had heard of cervical cancer. Majority (97.1%) of the respondents believed cervical cancer is preventable however, 67.6% also believed that it is incurable. Almost half (42.2%) of the respondents did not perceive themselves as at risk of cervical cancer. Thus, only 11.8% of the nurses had ever screened for cervical cancer. However, majority (92.2%) were willing to recommend the screening to others.
    UNASSIGNED: The respondents of this study had some knowledge of cervical cancer however had low patronage for recommended screening practices. Therefore, strategies must be implemented to increase screening practices among female nurses.
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  • 文章类型: Journal Article
    背景:肺癌的早期筛查和检测对于疾病的诊断和预后至关重要。在本文中,我们研究了血清拉曼光谱用于肺癌快速筛查的可行性。
    方法:收集45例肺癌患者的拉曼光谱,45例肺部良性病变,45名健康志愿者然后应用支持向量机(SVM)算法建立肺癌诊断模型。此外,对15个独立个体进行了外部验证,包括5名肺癌患者,5例肺部良性病变患者,5健康对照
    结果:诊断灵敏度,特异性,准确率为91.67%,92.22%,90.56%(肺癌与健康控制),92.22%,95.56%,93.33%(肺良性病变与健康)和80.00%,83.33%,80.83%(肺癌与良性肺病变),反复。在独立验证队列中,我们的模型显示所有样本分类正确.
    结论:因此,这项研究表明,血清拉曼光谱分析技术与SVM算法相结合,在肺癌的无创检测中具有巨大的潜力。
    BACKGROUND: Early screening and detection of lung cancer is essential for the diagnosis and prognosis of the disease. In this paper, we investigated the feasibility of serum Raman spectroscopy for rapid lung cancer screening.
    METHODS: Raman spectra were collected from 45 patients with lung cancer, 45 with benign lung lesions, and 45 healthy volunteers. And then the support vector machine (SVM) algorithm was applied to build a diagnostic model for lung cancer. Furthermore, 15 independent individuals were sampled for external validation, including 5 lung cancer patients, 5 benign lung lesion patients, and 5 healthy controls.
    RESULTS: The diagnostic sensitivity, specificity, and accuracy were 91.67%, 92.22%, 90.56% (lung cancer vs. healthy control), 92.22%,95.56%,93.33% (benign lung lesion vs. healthy) and 80.00%, 83.33%, 80.83% (lung cancer vs. benign lung lesion), repectively. In the independent validation cohort, our model showed that all the samples were classified correctly.
    CONCLUSIONS: Therefore, this study demonstrates that the serum Raman spectroscopy analysis technique combined with the SVM algorithm has great potential for the noninvasive detection of lung cancer.
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  • 文章类型: Journal Article
    背景:当前的管理屏幕检测到的肺结节的指南提供了基于规则的建议,以立即进行诊断检查或每隔3、6或12个月进行随访。缺乏定制的访问计划。
    目的:使用强化学习(RL)制定个性化的筛查计划,并评估基于RL的政策模型的有效性。
    方法:使用嵌套的案例控制设计,我们回顾性地确定了308例癌症患者,这些患者在国家肺癌筛查试验的至少两轮筛查中筛查结果为阳性.我们建立了一个对照组,包括没有癌症的结节患者,根据癌症诊断年份匹配(1:1)。通过生成10,164个序列决策事件,我们训练了基于RL的策略模型,仅包含结节直径,结合结节外观(衰减和边缘)和/或患者信息(年龄,性别,吸烟状况,包年,和家族史)。我们计算了误诊率,漏诊,和延迟诊断,并比较了基于RL的政策模型和基于规则的随访协议(国家综合癌症网络指南;中国肺癌筛查和早期检测指南)的性能。
    结果:我们确定了某些变量之间的显着相互作用(例如,结节形状和患者吸烟包年,超出指南协议中考虑的范围)和后续测试间隔的选择,从而影响决策序列的质量。在验证中,一个基于RL的政策模型的误诊率为12.3%,9.7%为漏诊,延迟诊断为11.7%。与两种基于规则的协议相比,三个性能最佳的基于RL的策略模型一致地证明了基于疾病特征(良性或恶性)的特定患者亚组的最佳性能,结节表型(大小,形状,和衰减),和个人属性。
    结论:这项研究强调了使用基于RL的方法的潜力,该方法在临床上可解释且性能稳健,以开发个性化的肺癌筛查时间表。我们的发现为增强当前的癌症筛查系统提供了机会。
    BACKGROUND: The current guidelines for managing screen-detected pulmonary nodules offer rule-based recommendations for immediate diagnostic work-up or follow-up at intervals of 3, 6, or 12 months. Customized visit plans are lacking.
    OBJECTIVE: To develop individualized screening schedules using reinforcement learning (RL) and evaluate the effectiveness of RL-based policy models.
    METHODS: Using a nested case-control design, we retrospectively identified 308 patients with cancer who had positive screening results in at least two screening rounds in the National Lung Screening Trial. We established a control group that included cancer-free patients with nodules, matched (1:1) according to the year of cancer diagnosis. By generating 10,164 sequence decision episodes, we trained RL-based policy models, incorporating nodule diameter alone, combined with nodule appearance (attenuation and margin) and/or patient information (age, sex, smoking status, pack-years, and family history). We calculated rates of misdiagnosis, missed diagnosis, and delayed diagnosis, and compared the performance of RL-based policy models with rule-based follow-up protocols (National Comprehensive Cancer Network guideline; China Guideline for the Screening and Early Detection of Lung Cancer).
    RESULTS: We identified significant interactions between certain variables (e.g., nodule shape and patient smoking pack-years, beyond those considered in guideline protocols) and the selection of follow-up testing intervals, thereby impacting the quality of the decision sequence. In validation, one RL-based policy model achieved rates of 12.3% for misdiagnosis, 9.7% for missed diagnosis, and 11.7% for delayed diagnosis. Compared with the two rule-based protocols, the three best-performing RL-based policy models consistently demonstrated optimal performance for specific patient subgroups based on disease characteristics (benign or malignant), nodule phenotypes (size, shape, and attenuation), and individual attributes.
    CONCLUSIONS: This study highlights the potential of using an RL-based approach that is both clinically interpretable and performance-robust to develop personalized lung cancer screening schedules. Our findings present opportunities for enhancing the current cancer screening system.
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  • 文章类型: Journal Article
    背景:漏诊早期胃癌(MEGC)在食管胃十二指肠镜检查(EGD)期间普遍存在,这是检测早期胃癌(EGC)的一线推荐策略。因此,我们探讨了MEGC和不同类型MEGC的风险因素,基于内窥镜切除的人群。
    方法:本回顾性研究,病例对照研究在南京鼓楼医院(NJDTH)进行。我们纳入了在筛查EGD期间被诊断为EGC的患者,进行了内镜切除术,并于2014年1月至2021年12月在NJDTH经术后病理证实,并根据漏诊的根本原因不同将其分为不同类型。单变量,多变量,亚组和倾向评分分析用于探索MEGC和不同类型MEGC的危险因素.
    结果:共有447名患者,包括345例最初检测到的早期胃癌(IDEGC)和102例MEGC,包括在这项研究中。较大大小(≥1cm)(OR0.45,95%CI0.27-0.74,P=0.002)和粘膜下层浸润深度(OR0.26,95%CI0.10-0.69,P=0.007)与MEGC呈负相关。使用镇静(OR0.32,95%CI0.20-0.52,P<0.001)和更长的观察时间(OR0.60,95%CI0.37-0.96,P=0.034)对MEGC具有保护作用。
    结论:较小和更浅表的EGC病变更容易误诊。在EGD期间使用镇静和延长观察时间有助于减少MEGC的发生。
    BACKGROUND: Missed early gastric cancer (MEGC) is prevalent during esophagogastroduodenoscopy (EGD), which is the first-line recommended strategy for detecting early gastric cancer (EGC). Hence, we explored the risk factors for MEGC and different types of MEGC, based on the endoscopic resected population.
    METHODS: This retrospective, case-control study was conducted at Nanjing Drum Tower Hospital (NJDTH). We included patients who were diagnosed with EGC during screening EGD, underwent endoscopic resection, and were confirmed by postoperative pathology at the NJDTH from January 2014 to December 2021, and classified them into different types according to the different root causes of misses. Univariable, multivariable, subgroup and propensity score analyses were used to explore the risk factors for MEGC and different types of MEGC.
    RESULTS: A total of 447 patients, comprising 345 with initially detected early gastric cancer (IDEGC) and 102 with MEGC, were included in this study. Larger size (≥ 1 cm) (OR 0.45, 95% CI 0.27-0.74, P = 0.002) and invasion depth of submucosa (OR 0.26, 95% CI 0.10-0.69, P = 0.007) were negatively associated with MEGC. Use of sedation (OR 0.32, 95% CI 0.20-0.52, P < 0.001) and longer observation time (OR 0.60, 95% CI 0.37-0.96, P = 0.034) exhibited protective effect on MEGC.
    CONCLUSIONS: Smaller and more superficial EGC lesions are more susceptible to misdiagnosis. The use of sedation and prolonged observation time during EGD could help reduce the occurrence of MEGC.
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  • 文章类型: Journal Article
    目的:宫颈癌现在可以通过人乳头瘤病毒(HPV)疫苗接种和HPV筛查来预防。然而,农村地区的结构性卫生系统障碍会抑制筛查。社会决定因素和种族主义加剧了农村毛利人的不平等机会。有利于股权的工具,如自取拭子护理点(POC)测试,现在存在。这项研究旨在调查在农村社区活动中是否可以通过移动阴道镜检查服务进行POCHPV检测和立即提供阴道镜检查。
    方法:本案例研究是一个研究中心之间的合作,女性健康巴士,一家分子诊断公司,毛利人保健提供者和社区慈善机构,并在为期2天的社区活动-剪力赛中引入新的子宫颈筛查计划之前进行。符合条件的参与者被提供了一个自我采取的HPV拭子,通过POC测试进行了分析。如果检测到高危型HPV,他们立即接受阴道镜检查。以毛利人为中心的定性组成部分探讨了妇女在这一过程中的经历。
    结果:14名女性进行了HPV自检。在六名女性中检测到高危型HPV,并立即进行阴道镜检查。六名妇女接受了采访。所有人都支持这项服务。文化安全的工作人员花时间让妇女放心,有助于获得可接受性和积极的经验。
    结论:本案例研究表明,通过跨部门合作,可以在农村社区活动中提供POCHPV检测和阴道镜检查。这项服务对于在高收入国家面临医疗保健障碍的农村临时工人来说是可以接受的。
    OBJECTIVE: Cervical cancer is now preventable with human papillomavirus (HPV) vaccination and HPV screening. However, structural health system barriers in rural areas can inhibit screening access. Inequitable access for rural Māori is exacerbated by social determinants and racism. Pro-equity tools, such as self-taken swabs point of care (POC) testing, now exist. This study aimed to investigate whether POC HPV testing and immediate offer of colposcopy by a mobile colposcopy service is possible at a rural community event.
    METHODS: This case study was a collaboration between a research centre, a women\'s health bus, a molecular diagnostics company, a Māori health provider and a community charity, and took place prior to the new cervical screening programme introduction at a 2-day community event-a shearathon. Eligible participants were offered a self-taken swab for HPV, which was analysed by POC testing. If high-risk HPV was detected, they were offered an immediate colposcopy. The Māori-centred qualitative component explored women\'s experiences of the process.
    RESULTS: Fourteen women undertook a self-test for HPV. High-risk HPV was detected in six women and all were offered immediate colposcopy. Six women were interviewed. All were supportive of the service. Culturally safe staff taking time to put women at ease contributed to acceptability and positive experiences.
    CONCLUSIONS: This case study shows that provision of POC HPV testing and colposcopy at a rural community event setting is possible through cross-sector collaboration. This service was acceptable to rural transient workers who face barriers to healthcare in a high-income country.
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  • 文章类型: Journal Article
    背景:乳腺癌是全世界可见的癌症类型,就发病率和死亡原因而言,乳腺癌在女性癌症中排名第一。
    目的:进行这项研究是为了确定居住在北塞浦路斯的妇女的乳腺癌风险水平和乳腺癌知识水平。
    方法:研究,计划作为关系调查,是基于网络进行的。这项研究完成了657名居住在北塞浦路斯的成年女性参与者,他们自愿参加了这项研究。为了收集数据,第一部分包括介绍性特征,第二部分包括“乳腺癌风险评估表”,用于确定乳腺癌风险水平,第三部分包括“全面乳腺癌知识测试”,以确定参与者的乳腺癌知识水平,第四部分包括“冠军健康信念模型量表”。
    结果:确定95.2%的女性属于低风险乳腺癌组。知识测试平均得分为12.05,可以说获得的分数高于平均值(min:4-max:18)。结果发现,55.7%的女性知道如何进行乳房自我检查(BSE),但只有15.4%的人每月定期进行疯牛病。研究发现,80.9%的女性从未进行过乳房X线摄影,她们的知识得分随着教育水平的提高而增加(p<0.001),非吸烟者与她们的知识水平之间存在显着关系(p<0.01)。
    结论:尽管女性在知识测试中得分很高,观察到应用BSE和乳房X线照相术的频率非常低。不管乳腺癌的危险因素有多大,健康专业人员应该向女性传授定期检查和疯牛病对每个女性的重要性,应计划对没有这方面培训的妇女进行集体培训。
    BACKGROUND: Breast cancer is the type of cancer that is seen all over the world and ranks first among female cancers in terms of incidence and cause of death.
    OBJECTIVE: This research was conducted to determine the breast cancer risk level and breast cancer knowledge level in women living in Northern Cyprus.
    METHODS: The study, which was planned as a relational survey, was carried out as web-based. The research was completed with 657 adult female participants living in Northern Cyprus who volunteered to participate in the study. In order to collect data, the first section includes the introductory features, the second section includes the \"Breast Cancer Risk Assessment Form\" for determining breast cancer risk levels, the third section includes the \"Comprehensive Breast Cancer Knowledge Test\" to determine the breast cancer knowledge levels of the participants, and the fourth section includes the \"Champion Health Belief Model Scale\" was used.
    RESULTS: It was determined that 95.2% of women were in the low risk group for breast cancer. The knowledge test mean score is 12.05, and it can be said that the scores obtained are above the average (min:4- max:18). It was found that 55.7% of the women knew how to do Breast Self-Examination (BSE), but only 15.4% of them regularly performed BSE every month. It was found that 80.9% of the women never had mammography and their knowledge scores increased with increasing education level (p< 0.001) and there was a significant relationship between non-smokers and their knowledge levels (p< 0.01).
    CONCLUSIONS: Despite the high scores of women in knowledge tests, it was observed that the frequency of applying BSE and having mammography was very low. Regardless of the risk factors for breast cancer, the importance of regular check-ups and BSE for every woman should be taught to women by health professionals, and group trainings should be planned for women who do not have training on this subject.
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