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Parametrization of Survival Measures, Part I: Consequences of Self-Organizing 生存措施的参数化,第一部分:自组织的后果
Pub Date : 2020-05-27 DOI: 10.4236/ijcm.2020.115031
O. Szász, A. Szász
Lifetime analyses frequently apply a parametric functional description from measured data of the Kaplan-Meier non-parametric estimate (KM) of the survival probability. The cumulative Weibull distribution function (WF) is the primary choice to parametrize the KM. but some others (e.g. Gompertz, logistic functions) are also widely applied. We show that the cumulative two-parametric Weibull function meets all requirements. The Weibull function is the consequence of the general self-organizing behavior of the survival, and consequently shows self-similar death-rate as a function of the time. The ontogenic universality as well as the universality of tumor-growth fits to WF. WF parametrization needs two independent parameters, which could be obtained from the median and mean values of KM estimate, which makes an easy parametric approximation of the KM plot. The entropy of the distribution and the other entropy descriptions are supporting the parametrization validity well. The goal is to find the most appropriate mining of the inherent information in KM-plots. The two-parameter WF fits to the non-parametric KM survival curve in a real study of 1180 cancer patients offering satisfactory description of the clinical results. Two of the 3 characteristic parameters of the KM plot (namely the points of median, mean or inflection) are enough to reconstruct the parametric fit, which gives support of the comparison of survival curves of different patient’s groups.
寿命分析经常使用Kaplan-Meier生存概率非参数估计(KM)的测量数据的参数函数描述。累积威布尔分布函数(WF)是参数化KM的首选方法。但其他一些(如Gompertz, logistic函数)也被广泛应用。我们证明了累积双参数威布尔函数满足所有要求。威布尔函数是生存的一般自组织行为的结果,因此显示了自相似死亡率作为时间的函数。其发生的普遍性和肿瘤生长的普遍性都符合WF。WF参数化需要两个独立的参数,这两个参数可以从KM估计的中值和平均值中获得,这使得对KM图的参数逼近变得容易。分布熵和其他熵描述都很好地支持了参数化的有效性。目标是找到最合适的挖掘km -plot中固有信息的方法。在1180例癌症患者的真实研究中,双参数WF与非参数KM生存曲线拟合,对临床结果提供了满意的描述。KM图3个特征参数中的2个(即中位数点、平均值点或拐点)足以重建参数拟合,为不同患者组生存曲线的比较提供支持。
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引用次数: 4
Research Progress of C-Peptide and Its Physiological Function c肽及其生理功能的研究进展
Pub Date : 2020-04-27 DOI: 10.4236/ijcm.2020.115021
R. Zeng, Shuyu Huang, S. Liao
As a product in the process of insulin synthesis, C-peptide’s physiological function is still not very clear. Recent studies have shown that C-peptide has many potential cell targets and has biological effects on a variety of tissue systems in humans and other animals. In this paper, the effects of C-peptide on diabetic complications, reproductive endocrine system, blood system, tissue repair, and neoplastic diseases were reviewed to provide references for further clarification of c-peptide related problems.
c肽作为胰岛素合成过程中的产物,其生理功能尚不十分清楚。最近的研究表明,c肽具有许多潜在的细胞靶点,并对人类和其他动物的多种组织系统具有生物学作用。本文就c肽在糖尿病并发症、生殖内分泌系统、血液系统、组织修复、肿瘤疾病等方面的作用进行综述,为进一步阐明c肽相关问题提供参考。
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引用次数: 0
Construction of the First Certification Evaluation Index System for Diabetes Specialist Nurses by Delphi Method 用德尔菲法构建首个糖尿病专科护士认证评价指标体系
Pub Date : 2020-04-27 DOI: 10.4236/ijcm.2020.115025
Haihua Zou, Xue Gong, Siyun Wang, Weiju Chen
Objective: To establish an evaluation index system for the first-time certification of diabetes specialist nurses in line with the clinical nursing practice in China, and to provide a reference basis for government administrations and hospitals to formulate unified standards. Methods: After the research team has determined the theme, it will consult the development of A) specialist nursing through the library, Internet and electronic literature database; B) the history of the development of specialist nurses in diabetes and other fields; C) the selection criteria of specialist nurses; D) the training of specialist nurses system, assessment method; E) Specialist nurse certification body, evaluation standards and certification standards and other related documents, literature, books and report materials. The author established the preliminary index system through literature review, specialist interview and group discussion and used Delphi method to organize three rounds of 30 experts’ consultations. Results: A first certification evaluation index system including 8 fundamental indicators, 5 first-level indicators, 19 second-level indicators and 99 third-level indicators was constructed for diabetes nurses. Conclusion: The results of three rounds of expert consultation and demonstration are reliable, and the constructed index system is suitable for comprehensive evaluation of diabetes specialist nurses, which provides a basis for the effective management of nursing resources.
目的:建立符合中国临床护理实践的糖尿病专科护士首次认证评价指标体系,为政府管理部门和医院制定统一标准提供参考依据。方法:课题组在确定主题后,通过图书馆、网络、电子文献数据库等查阅专科护理的发展情况;B)糖尿病及其他领域专科护士的发展历史;C)专科护士的选拔标准;D)专科护士培训制度、考核方法;E)专科护士认证机构、评价标准和认证标准等相关文件、文献、书籍和报告资料。笔者通过文献查阅、专家访谈和小组讨论建立初步指标体系,并采用德尔菲法组织三轮30名专家咨询。结果:构建了包括8项基础指标、5项一级指标、19项二级指标、99项三级指标在内的糖尿病护士首次认证评价指标体系。结论:三轮专家咨询及论证结果可靠,所构建的指标体系适用于糖尿病专科护士的综合评价,为有效管理护理资源提供依据。
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引用次数: 0
Effects of Semi-Solid Enteral Formula on Aspiration Pneumonia and Diarrhea 半固体肠内方剂治疗吸入性肺炎和腹泻的疗效观察
Pub Date : 2020-03-30 DOI: 10.4236/ijcm.2020.114019
M. Oishi, Mina Yasuda, Mao Chikamatsu, Rena Akiyama, M. Yamamoto, Keisuke Terakawa, Yumi Suzuki, Mizuki Ando, Mariko Shimada, T. Kumagai, Akiko Nakayama
Objective: The effects of semi-solid enteral formula were investigated in tube feeding patients with aspiration pneumonia and/or diarrhea caused by liquid enteral formula. Methods: In 25 cases of aspiration pneumonia and 10 cases of diarrhea (5 cases had both aspiration pneumonia and diarrhea) caused by liquid enteral formula, the rate of improvement by changing the liquid enteral formula to semi-solid enteral formula was studied. The semi-solid enteral formula (PG Soft® EJ) was infused via the nasogastric tube (16Fr) or percutaneous endoscopic gastrostomy (PEG) tube (20Fr). Results: The semi-solid enteral formula was effective in 72% of aspiration pneumonia cases and in 80% of diarrhea cases. Constipation was observed in one case but was controlled with magnesium oxide. Conclusion: In cases of aspiration pneumonia and/or diarrhea, changing liquid enteral formula to semi-solid enteral formula frequently shows improvement.
目的:探讨半固体肠内配方奶在液体肠内配方奶致吸入性肺炎和/或腹泻管饲患者中的应用效果。方法:对25例吸入性肺炎和10例腹泻(5例兼有吸入性肺炎和腹泻)由液体肠内配方改为半固体肠内配方的疗效进行观察。半固体肠内配方(PG Soft®EJ)通过鼻胃管(16Fr)或经皮内镜胃造口(PEG)管(20Fr)输注。结果:半固体肠内配方对吸入性肺炎的有效率为72%,对腹泻的有效率为80%。一例出现便秘,但用氧化镁控制。结论:在吸入性肺炎和/或腹泻病例中,将液体肠内配方改为半固体肠内配方往往能改善病情。
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引用次数: 0
Mutation Analysis of EGFR Gene in Patients with Non-Small Cell Lung Cancer in Xinjiang 新疆地区非小细胞肺癌患者EGFR基因突变分析
Pub Date : 2020-03-30 DOI: 10.4236/ijcm.2020.114015
Yi Shi, X. Pang, Zhiping Ma, W. Cui, Yuqing Ma, Wei Zhang
The epidermal growth factor receptor (EGFR) is a receptor tyrosine kinase (RTK) that links extracellular signals to the control of cell survival, growth, proliferation and differentiation. EGFR has been a therapeutic target for human malignancies, due to its frequent hyperactivation, therefore, it is necessary to investigate the characteristics of EGFR mutation, and identify patients who are likely to benefit from EGFR mutation. In this study, we examined 766 non-small cell lung cancer (NSCLC) patients (675 tissue, 83 thoracic water precipitation and 8 plasma samples) tested in pathology department of First Affiliated Hospital of Xinjiang Medical University from 2013 to 2017 by using ARMS-PCR method. The correlation between EGFR mutations and clinical pathological features was further explored. Subgroup analyses according to ethnicity, histological type, sample type, and tumour grade were done. Subgroup analyses showed the mutation rate of tumor tissue, thoracic water precipitation and plasm was 30.5%, 37.3%, 50.0% respectively. We found female (p < 0.0001), no smoking (p < 0.001), adenocarcinoma (p < 0.0001), and tissue specimens (Tobacco use) were associated with higher EGFR mutation rate. The most common mutations were exon 19 deletions (47.30%) and L858R point (42.32%) mutation. We have not found any differences between EGFR mutations and ethnic groups especially. In addition, we did not find differences in common mutations and rare sensitive mutations in the survival of targeted therapies.
表皮生长因子受体(EGFR)是一种酪氨酸激酶受体(RTK),它将细胞外信号与细胞存活、生长、增殖和分化的控制联系起来。由于EGFR频繁的高激活,已成为人类恶性肿瘤的治疗靶点,因此有必要研究EGFR突变的特征,并确定可能从EGFR突变中获益的患者。本研究采用ARMS-PCR方法对2013 - 2017年新疆医科大学第一附属医院病理科766例非小细胞肺癌(NSCLC)患者(675例组织标本、83例胸腔积水标本和8例血浆标本)进行检测。进一步探讨EGFR突变与临床病理特征的相关性。根据种族、组织学类型、样本类型和肿瘤分级进行亚组分析。亚组分析显示,肿瘤组织、胸腔积水和血浆的突变率分别为30.5%、37.3%和50.0%。我们发现女性(p < 0.0001)、不吸烟(p < 0.001)、腺癌(p < 0.0001)和组织标本(吸烟)与较高的EGFR突变率相关。最常见的突变是外显子19缺失(47.30%)和L858R点突变(42.32%)。我们没有发现EGFR突变和种族之间的任何差异。此外,我们没有发现常见突变和罕见敏感突变在靶向治疗的生存率方面存在差异。
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引用次数: 0
Clinical Application and Research Progress of Accelerated Rehabilitation Surgery in Perioperative Period of Advanced Gastric Cancer in the Elderly 老年晚期胃癌围手术期加速康复手术的临床应用及研究进展
Pub Date : 2020-03-02 DOI: 10.4236/ijcm.2020.113010
C. Ran, Guangwei Gong
Enhanced recovery after surgery (ERAS) has been used in various surgical professions in recent years and is widely accepted by doctors. This concept not only helps patients speed up postoperative recovery, reduce the incidence of related complications and shorten hospital stays, but also has been proved to be effective and safe in the perioperative application of gastric cancer. This article reviews the clinical application and research progress of enhanced recovery after surgery in the perioperative period of advanced gastric cancer in the elderly.
近年来,手术后增强恢复(ERAS)已广泛应用于各种外科专业,并被医生广泛接受。这一理念不仅有助于患者加快术后恢复,减少相关并发症的发生,缩短住院时间,而且在胃癌围手术期应用中已被证明是有效和安全的。本文就老年晚期胃癌围手术期促进术后恢复的临床应用及研究进展进行综述。
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引用次数: 1
Evaluation of Empty Nose Syndrome Scores in Patients Undergoing Extended Endoscopic Transnasal Sellar Surgery 内镜下经鼻鞍手术患者空鼻综合征评分的评价
Pub Date : 2020-03-02 DOI: 10.4236/ijcm.2020.113013
Y. Kuo, Chia-Jung Lee, Hsing-Mei Wu, Chung-Yu Hao, Yung Liu, Y. Tsai
Background: Several large series have established endoscopic transnasal sellar surgery as the procedure of choice for removal of tumors in the sellar area. Although this procedure provides a less invasive approach to the sella, it entails complications such as nasal bleeding, impaired olfactory function, atrophic rhinitis, synechiae, etc. No studies have yet reported potential morbidities such as empty nose syndrome (ENS), although patients have a relatively empty nasal cavity after surgery. Therefore, we sought to verify the percentage of patients who truly met the diagnostic criteria for ENS after endoscopic transnasal sellar surgery, determine the variation between pre- and postoperative scores in each Empty Nose Syndrome 6-Item Questionnaire (ENS6Q) item, and further evaluate the symptoms that may affect the patients the most after surgery. Methods: Between March 2015 and January 2019, eventually 11 patients who underwent extended endoscopic transnasal sellar surgery in Shin Kong Wu Ho-Su Memorial Hospital, a tertiary referral medical center in Taipei, Taiwan, were enrolled. The patients completed the recently validated ENS6Q after surgery. Results: One patient met the objective diagnostic criteria for ENS (score ≥ 11 in ENS6Q). Significant differences were observed in the pre- and postoperative total ENS6Q scores. The pre- and postoperative scores of “nose feeling too open” and nasal crusting showed statistically significant differences. Further, compared with the other items, the postoperative score of nasal crusting increased most obviously, and it may be the most apparent operation-related symptom. Conclusion: This study is the first to report the possibility of developing ENS after endoscopic transnasal sellar surgery. Although the transnasal endoscopic approach is a safe and minimally invasive procedure for the treatment of sellar lesions, possible complications such as ENS should be considered.
背景:几个大型系列已经建立了经鼻内镜鞍区手术作为切除鞍区肿瘤的选择。虽然这种方法对鞍的侵入性较小,但它会引起鼻出血、嗅觉功能受损、萎缩性鼻炎、粘连等并发症。虽然患者术后鼻腔相对空,但目前还没有研究报告潜在的并发症,如空鼻综合征(ENS)。因此,我们试图验证内镜经鼻鞍手术后真正符合ENS诊断标准的患者百分比,确定空鼻综合征6项问卷(ENS6Q)各条目的术前和术后评分差异,并进一步评估术后可能对患者影响最大的症状。方法:在2015年3月至2019年1月期间,在台湾台北的三级转诊医疗中心新光吴浩苏纪念医院接受了经鼻鼻内镜手术的11例患者。患者在手术后完成了最近验证的ENS6Q。结果:1例患者符合ENS客观诊断标准(ENS6Q评分≥11分)。术前和术后总ENS6Q评分有显著差异。术前、术后“鼻感过开”和鼻结皮评分差异有统计学意义。此外,与其他项目相比,术后鼻结皮评分升高最明显,可能是最明显的手术相关症状。结论:本研究首次报道了内镜经鼻鞍手术后发生ENS的可能性。虽然经鼻内窥镜入路是治疗鞍区病变的一种安全且微创的方法,但应考虑可能的并发症,如ENS。
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引用次数: 0
The Application of Laparoscopic B-Ultrasound Microwave Ablation Technology in Liver Metastasis of Colorectal Cancer 腹腔镜b超微波消融技术在结直肠癌肝转移中的应用
Pub Date : 2020-02-11 DOI: 10.4236/ijcm.2020.112007
Wenfu Zhou, Weimin Li
Liver is the most common metastasis target organ in the late stage of colorectal cancer. More than 50% of colorectal cancer patients will have simultaneous or heterochronous liver metastasis. The survival time of patients with colorectal cancer and liver metastasis (CRLM) is short; not all patients can get radical resection of liver metastasis. For this part of patients, microwave ablation technology has been proved to be one of the effective methods for the treatment of liver metastasis. Laparoscopic B-ultrasound ablation also highlights a lot of minimally invasive advantages; this paper reviews the relevant literature of PubMed database, Wanfang database and CNKI database, in order to provide the treatment basis for clinical application of microwave ablation technology under laparoscopic B-ultrasound in the treatment of CRLM. The results showed that the safety and effectiveness of microwave ablation for liver metastases under the location of B-ultrasonic laparoscopy were confirmed, and patients with liver metastases of colorectal cancer who could not be resected could choose this treatment.
肝脏是结直肠癌晚期最常见的转移靶器官。超过50%的结直肠癌患者会发生同时或异时性肝转移。结直肠癌合并肝转移(CRLM)患者生存时间短;并非所有患者都能根治性切除肝转移灶。对于这部分患者,微波消融技术已被证明是治疗肝转移的有效方法之一。腹腔镜下b超消融术也突出了很多微创的优点;本文对PubMed数据库、万方数据库、CNKI数据库的相关文献进行综述,以期为腹腔镜下b超微波消融技术在CRLM治疗中的临床应用提供治疗依据。结果证实了b超腹腔镜定位下微波消融治疗肝转移瘤的安全性和有效性,不能切除的结直肠癌肝转移患者可以选择这种治疗方法。
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引用次数: 0
A Prognostic Model of the Development of Postpartum Purulent-Inflammatory Diseases 产后脓性炎性疾病发展的预后模型
Pub Date : 2020-02-11 DOI: 10.4236/ijcm.2020.112004
O. Bulavenko, L. Ostapiuk, A. Voloshinovskii, V. Rud, T. Malyi, O. Rud
Background: Currently, postpartum purulent-inflammatory diseases continue to be a prominent issue in medicine. As a result, numerous scientific publications were devoted to finding the solution to this issue. Primarily these solutions included the idea of optimisation of antibiotic-based disease prevention and therapies. However, the early diagnosis and prognosis of these pathologies were unfortunately overlooked. The Aim of the Study: To build a prognostic model of the development of postpartum purulent-inflammatory diseases. Material and Methods: The main focus of our research was establishment of methods of early diagnosis and prognosis of purulent-inflammatory diseases. The main cohort consisted of 170 women diagnosed with purulent-inflammatory diseases while the control cohort was made of 40 women with an uncomplicated course of pregnancy; patient’s blood serum was analysed using fluorescence spectroscopy. Additionally, we implied a variety of standardised algorithms used during clinical and laboratory examination of the patients with postpartum endometritis. Results: Fluorescence spectra were studied for 40 women of control group and 170 women of the main group. Based on the data obtained using fluorescence spectroscopy and data from clinical and laboratory examinations (extragenital pathology, gynecology-related diseases, risk of miscarriage, surgery, TORCH-infections, colpitis, labour duration > 12 hrs, labour anomalies, maximum blood serum fluorescence spectrum values, fluorescence spectrum ≤ 0.845, age, number of bed days, fetal distress), we have derived a prognostic model of the development of postpartum purulent-inflammatory diseases. Conclusion: As a result, we derived a prognostic model based on the main 13 factors, which contribute to development of postpartum purulent-inflammatory diseases. This model was determined correct with a probability of over 99% (р 2 = 174.74; df = 13).
背景:目前,产后脓性炎症性疾病仍然是医学上的一个突出问题。因此,许多科学出版物致力于寻找解决这个问题的办法。这些解决方案主要包括优化基于抗生素的疾病预防和治疗的想法。然而,不幸的是,这些病理的早期诊断和预后被忽视。目的:建立产后脓性炎性疾病发展的预后模型。材料与方法:我们的研究重点是建立脓性炎性疾病的早期诊断和预后方法。主要队列由170名诊断为脓性炎症性疾病的妇女组成,而对照队列由40名妊娠无并发症的妇女组成;采用荧光光谱法对患者血清进行分析。此外,我们建议在产后子宫内膜炎患者的临床和实验室检查中使用各种标准化算法。结果:对对照组40名妇女和主组170名妇女的荧光光谱进行了研究。根据荧光光谱法获得的数据以及临床和实验室检查的数据(阴道外病理、妇科相关疾病、流产风险、手术、torch感染、阴道炎、分娩持续时间bb0 ~ 12h、分娩异常、血清荧光光谱最大值、荧光光谱≤0.845、年龄、卧床天数、胎儿窘迫),我们推导出了产后脓性炎性疾病发展的预后模型。结论:基于影响产后脓性炎性疾病发生的13个主要因素,建立了一个预后模型。该模型被确定为正确的概率超过99% (2 = 174.74;Df = 13)。
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引用次数: 3
Improving the Delivery of Musculoskeletal Education in Primary Care Using the Innovative Echo (Extension for Community Healthcare Outcomes) Technology 利用创新的Echo(扩展社区医疗保健结果)技术改善初级保健中肌肉骨骼教育的提供
Pub Date : 2020-02-10 DOI: 10.35248/2329-9096.20.08.536
Katharine Spalding, I. Ryans, N. Heron
Background: Extension for Community Healthcare Outcomes (ECHO) is a programme that employs videoconferencing technology to train community-based primary care providers to improve and standardize care across a wide geographical region. This method has not yet been trialled in the UK for improving the capacity of primary care services in managing common musculoskeletal (MSK) complaints. Aim: The aim was to assess the impact of introducing a year-long MSK ECHO education programme in Northern Ireland for general practitioners (GPs). Design and setting: Monthly sessions were held consisting of teaching and case based discussions. Each session lasted on average 90 minutes. A ‘hub’ consisting of local GP lead educators, supported by colleagues from secondary care, where linked to GPs around Belfast using video conferencing technology. Methods: Topics covered were chosen by participants at the start and covered common MSK complaints in primary care. An initial questionnaire was performed at the start and compared to an evaluation questionnaire at the end. Results: Ten GPs completed the evaluation one year after the project was initiated. The weighted average of the selfconfidence scores in examining a range of individual body parts in general practice increased from a baseline of 3.45 to 4.08. There was an increase in self-assessed ability in diagnosing and treating a number of common MSK complaints and the whole year-long programme was delivered for £ 14,980. Conclusion: This trial shows how a 12-month ECHO intervention can improve self-efficacy in a number of MSK capacities within GP. These preliminary results suggest that ECHO is an affordable, effective solution for providing postgraduate education to working GPs.
背景:扩展社区卫生保健成果(ECHO)是一个利用视频会议技术培训社区初级保健提供者的项目,以改善和标准化广泛地理区域内的护理。这种方法尚未在英国进行试验,以提高初级保健服务在管理普通肌肉骨骼(MSK)投诉方面的能力。目的:目的是评估在北爱尔兰为全科医生(全科医生)引入为期一年的MSK ECHO教育计划的影响。设计和设置:每月举行一次会议,包括教学和案例讨论。每次会议平均持续90分钟。一个由当地全科医生领导的教育工作者组成的“中心”,在二级医疗机构的同事的支持下,通过视频会议技术与贝尔法斯特周围的全科医生联系起来。方法:所涵盖的主题是由参与者在开始时选择的,涵盖了初级保健中常见的MSK投诉。开始时进行初步问卷调查,并在结束时对评估问卷进行比较。结果:10名全科医生在项目启动一年后完成了评估。在全科医生检查一系列身体个别部位时,自信得分的加权平均值由基线3.45上升至4.08。在诊断和治疗一些常见的MSK投诉方面,自我评估的能力有所提高,整个为期一年的项目的费用为14,980英镑。结论:这项试验显示了12个月的ECHO干预如何提高GP内许多MSK能力的自我效能。这些初步结果表明,ECHO是为在职全科医生提供研究生教育的一种经济、有效的解决方案。
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引用次数: 0
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International Journal of Physical Medicine and Rehabilitation
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