ObjectiveTo study the epidemiologic characteristics of primary liver cancer (PLC). MethodsThe literatures about regional distribution and etiologic epidemiology of PLC were reviewed. Results PLC was mainly distributed on caostland in the south-east of China. The main cause of PLC was hepatitis B virus, aflatoxin and contamination of drinking water. Otherwise, PLS was also related with lack of some trace element, sex horemones, genealogy cause and so on.Conclusion The genesis of PLC was by multiple factors.
目的:探讨成人麻疹的流行病学与临床特征。方法:回顾性分析196例成人麻疹的临床资料。结果:患者以外来流动人员及本地农村人口多见,平均年龄26.78岁,多数患者未接种麻疹疫苗或麻疹疫苗史不详。成人麻疹患者临床症状重,皮疹典型,为充血性斑丘疹,麻疹黏膜斑(Koplik’s spots)明显,且持续时间长,可合并肝脏和心肌损伤,但并发症以肺炎和支气管炎为主。结论:有必要加强成人的免疫接种,尤其是外来的务工人员,强化医务人员对麻疹的认识,避免麻疹的流行。
目的:研究西北地区早产儿疾病构成情况,为更好的防治早产儿相关疾病提供帮助。方法: 调查研究西安市儿童医院2005年1月至2008年12月早产儿患病情况。结果:在住院572例早产儿中,肺部病变429例(75.0%),其中肺炎376例(65.8%);眼部病变283例(49.6%),其中3期以下218例(38.1%),3期以上早产儿视网膜病变65例(11.5%);黄疸262例(45.7%),其中病理性黄疸198例(34.6%),生理性黄疸64例(112%),二者之比为3:1;血液系统病变共165例(28.8%),其中红细胞增多症例99例(17.3%);神经系统病变161例(28.1%),其中缺氧缺血性脑病轻度70例(12.3%),颅内出血42例(7.3%),颅内出血合并缺氧缺血性脑病24例(4.2%),脑白质软化25例(2.7%);严重血液感染90例(15.8%),其中败血症86例(15%);先天性心脏病共22例(3.8%);糖代谢异常29例(5.0%),新生儿硬肿症17例(3.1%),坏死性小肠结肠炎4(0.7%)。结论: 早产儿肺部病变(主要是肺炎)、眼部病变(主要是早产儿视网膜病变)、黄疸(主要是病理性黄疸)、血液系统病变(主要是红细胞增多症)、神经系统病变(主要是缺血缺氧性脑病)和血液感染(主要是败血症),是威胁西部地区早产儿健康的常见病、多发病。
Most immune-related adverse event (irAE) associated with immune checkpoint inhibitors (ICIs) resulted from excessive immune response against normal organs. The severity, timing, and organs affected by these events were often unpredictable. Adverse reactions could cause treatment delays or interruptions, in rare cases, pose a life-threatening risk. The mechanisms underlying irAE involved immune cell dysregulation, imbalances in inflammatory factor expression, alterations in autoantibodies and complement activation, even dysbiosis of intestinal microorganisms. However, the mechanisms of irAE occurrence might differ slightly among organs due to variations in their structures and the functions of resident immune cells. Future research should focus on the development of targeted drugs for the prevention or treatment of irAE based on the mechanisms by which irAE occurs in different organs. A deeper understanding of the mechanisms underlying irAE occurrence would aid clinicians in effectively utilizing ICIs and provide valuable guidance for their clinical application.
Objective To study the risk factors for contralateral breast cancer (CBC) in women after regular treatment of the primary breast cancer. Methods Between January 1997 to December 2002, the clinical data of 340 breast cancer patients at our institution were retrospectively analyzed. In all the patients a detailed analysis was carried out with respect to age, operation type, radiation therapy technique and dose, the use of chemotherapy or hormone therapy, and other clinicopathologic characteristics. The KaplanMeier method was used to estimate the actuarial rate of CBC. The Cox proportional hazard regression model was used to estimate the relative risk factors of CBC. Results Fourteen cases were diagnosed to be CBC, thus overall incidence of CBC was 4.1%. Ten-year CBC incidence (2.7%) was higher than 5-year incidence of CBC (1.4%). Univariate analysis showed that the risk factors of CBC at 5-year and 10-year included: ≤45 years old, medullary carcinoma, family history of breast cancer and being taken without endocrine therapy (P＜0.05), while chemotherapy and radiotherapy were not risk factors of CBC (P＞0.05). Mutivariate analysis showed that ≤ 45 years old and being internal breast radiotherapy were independent risk factors of CBC at 5-year and 10-year (P＜0.05). Conclusions CBC may occur in these primary breast cancer patients with age ≤45 years old, medullary carcinoma, family history of breast cancer. In order to reduce the incidence of CBC, endocrine therapy rather than internal breast radiotherapy should be performed in early breast cancer patients.
ObjectiveTo analyze the clinical characteristics and epidemiological characteristics of patients with coronavirus disease 2019 treated early in Jiangxi province.MethodsFour-night patients with coronavirus disease 2019 treated in this hospital from January 21st to 27th, 2020 were included in this study. The epidemiological and clinical data of patients after admission were collected, and laboratory tests such as blood routine, urine routine, stool routine, liver and kidney function, electrolytes, myocardial enzymes, erythrocyte sedimentation (ESR), C-reactive protein (CRP), calcitonin, coagulation, T cell subset and Chest CT were reviewed. The clinical results of common and severe/critically ill patients were compared.ResultsOf the 49 patients, 40 were common and 9 were severe/critical. Fourty-six patients had a clear history of contact with Wuhan or other areas of Hubei. The sex ratio was 2.06∶1, and the average age was 42.9 years. The symptoms were mainly fever (78.7%), cough (38.8%), and fatigue (18.4%). 28.6% (14 cases) of patients had hypertension and diabetes. Serum lymphocyte count and calcium concentration of the patients were decreased, but lactate dehydrogenase, ESR, CRP and serum amyloid A were increased in these patients. T lymphocyte subsets (CD3+, CD4+, CD8+) decreased significantly in these patients. Forty-seven patients (95.9%) had single or scattered patchy ground glass density shadows on the chest CT. Compared with common patients, the patients with severe/critical patients were older (P=0.023), hospitalized later (P=0.002), and had higher comorbidities (P=0.017). ESR (P=0.001）, CRP (P=0.010) and the serum amyloid A (P=0.040) increased significantly, while CD3+ (P<0.001), CD4+ (P=0.012), CD8+ (P=0.006) decreased significantly in severe/critical patients.ConclusionsThe patients with coronavirus disease 2019 in Jiangxi province are commonly imported from Wuhan. Severe/critical patients are older, hospitalized later, and have more medical complications and more severe systemic inflammatory reactions than common patients.
ObjectiveTo investigate the epidemiological situation of pre-hospital emergency elderly and non-elderly patients in Chengdu and explore the characteristics of pre-hospital care in the city.MethodAll pre-hospital care records in the Chengdu 120 Emergency System Database in 2017 were retrospectively collected. According to the age of the patients, they were divided into the elderly group (≥60 years old) and the non-elderly group (<60 years old). The disease spectrum, the trends of the number of emergency help calls, the changes in different diseases over time, as well as the disease composition of the patients who died in the two groups were compared.ResultsA total of 179 387 pre-hospital emergency patients were enrolled, including 59 980 elderly patients and 119 407 non-elderly patients. Most of them were male patients in both groups. Patients in the elderly group were mainly between 60 to 89 years old, and the ones in the non-elderly group were mainly between 18 to 59 years old. The pre-hospital emergency patients in the elderly group presented with trauma, nervous system, symptoms and signs, and cardiovascular system diseases mainly, accounting for 29.19%, 14.64%, 13.82%, and 12.86%, respectively. In the non-elderly group, trauma, acute poisoning, and symptoms and signs were predominant, accounting for 50.89%, 10.98%, and 10.08%, respectively. Among the pre-hospital deaths, the number in the elderly group was the larger, accounting for 69.61% (7 043 cases); the mortality rate was 11.74%, with sudden death (28.70%), cardiovascular diseases (25.95%), and respiratory diseases (16.07%) being the major causes. The pre-hospital mortality rate of non-elderly patients was 2.58%, mainly including traumatic diseases (35.41%), sudden death (unknown cause of death) (25.33%), and cardiovascular diseases (17.56%). The number of emergency help calls in the elderly group began to increase gradually from September, reaching a peak in December and hitting the trough in February. While in the non-elderly group, the peak of the emergency help calls appeared in July, and it also fell to the lowest in February. The proportion of the number of emergency help calls in the elderly group was higher in January to February and October to December; while the peak in non-elderly group was in July. The number of emergency help calls in the elderly group were mainly concentrated in the daytime (08:00 to 20:00). In the non-elderly group, the changes in the number of emergency help calls were similar to that of the elderly, however, with another peak (20:00 to 24:00). The proportion of the number of emergency help calls in the elderly group was 06:00 to 09:59, and the peak time of the non-elderly group was in the early morning (00:00 to 04:59) and night (20:00 to 23:59).ConclusionsThe number of pre-hospital care for elderly and non-elderly patients has its own characteristics in terms of the time and the distribution of disease spectrum. Trauma and cardiovascular diseases are the most common causes of pre-hospital care and death in Chengdu. And the pre-hospital mortality in the elderly group is much larger than that in non-elderly group. Relevant departments can allocate emergency resources rationally, and focus on improving the on-site rescue capacity towards related diseases.
It is vital for disciplines to introduce their glossary in a standardized manner, and Evidence-Based Medicine is no exception. Unification and standardization for evidence-based medicine glossary are indispensable and urgent. This paper will introduce what is evidence-based medicine glossary and why it is important.
With the development of artificial intelligence, machine learning has been widely used in diagnosis of diseases. It is crucial to conduct diagnostic test accuracy studies and evaluate the performance of models reasonably to improve the accuracy of diagnosis. For machine learning-based diagnostic test accuracy studies, this paper introduces the principles of study design in the aspects of target conditions, selection of participants, diagnostic tests, reference standards and ethics.
Objective To estimate the prevalence rate and risk factors of diabetic retinopathy (DR) in rural residents in Shandong．Methods A total of 16 330 residents in 8 counties in Shandong province underwent the screening of diabetes by multistage randomized clustersampling; while the standard of diagnosis of diabetes was in accordance with the WHO standard (1990). Diabetes was diagnosed in 707 residents who then underwent questionnaire survey and examinations of fasting bloodglucose，urine protein, visual acuity, slitlamp microscope, and direct opthalmoscope. The standard of DR screening was drawn according to the international DR classification (2002). The data were statistically analyzed with SPSS 11.5 software. Results In 16 330 residents,707 were with diabetes (4.33%), 26.30% of them (181 cases) had DR (1.11% of all the residents). Multivariable analysis showed that kidney damage, hypertension and high blood glucose were the risk factors for DR; while the age, sex, and family history were not related much to DR. Conclusion The prevalence rate of DR in rural residents of Shandong is high. Kidney involvement, hypertension and high blood glucose are the risk factors of DR.