Objective To analyze and screen the risk factors of both immunohistochemistry and pathology for lung cancer lymphatic metastasis, and to build a mathematical model for preliminary evaluation. Methods By conducting retrospective studies, the information of lung cancer patients in the General Hospital of Air Force from 2009 to 2011 were collected. Both single and multiple unconditional logistic regression analyses were applied to screen total 27 possible factors for lymphatic metastasis. After the factors with statistical significance were selected, the relevant mathematical model was built and then evaluated by means of receiver operating characteristic (ROC) analysis. Results A total of 216 patients were included. The single analyses on 27 possible factors showed significant differences in the following 10 factors: pathological grade (P=0.00), age (P=0.00), tumor types (P=0.01), nm23 (P=0.00), GSTII (P=0.01), TTF1 (P=0.01), MRP (P=0.01), CK14 (P=0.02), CD56 (P=0.02), and EGFR (P=0.03). The multiple factors unconditional logistic regression analyses on those 10 risk factors screened 4 relevant factors as follows: pathological grade (OR=2.34), age (OR=1.02), nm23 (OR=1.66), and EGFR (OR=1.47). Then a mathematical diagnostic model was established based on those 4 identified risk factors, and the result of ROC analysis showed it could improve the diagnostic sensitivity and specificity compared with the single factor mathematical diagnostic model. Conclusion Pathological grade, age, nm23, and EGFR are related with lung cancer lymphatic metastasis, and all of them are the risk factors which have higher adjuvant diagnostic value for lung cancer lymphatic metastasis.
Objective To investigate the patient’s psychological anticipation and occurrence of chemotherapy-induced nausea and vomiting (CINV), and to assess the influence of CINV on quality of life, so as to provide evidence for clinical doctors to recognize and pay attention to CINV. Methods The patients in the Tongji Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology who took either moderately emetogenic chemotherapy (MEC) or highly emetogenic chemotherapy (HEC) were randomly sampled with a questionnaire for two circles. Patients were asked to record the following indexes before chemotherapy, on the second day and the sixth day of chemotherapy: acute and delayed nausea and vomiting, independently taking antiemetics, and functional living index-emesis (FLIE). Then, descriptive analysis and multiple linear regression analysis were adopted for the outcomes of investigation. Results A total of 344 patients were investigated, of which 303 fulfilled the questionnaire finally. For the single-day chemotherapy, the acute nausea and vomiting, delayed nausea vomiting and overall complete remission in the MEC group were 86.1%, 76.6%, and 71.5%, respectively; while those of the HEC group were 84.1%, 71.0%, and 66.7%, respectively. For the multi-day chemotherapy, the acute nausea and vomiting, delayed nausea vomiting and overall complete remission were 93.8%, 64.9%, and 64.9%, respectively. Patients’ expectation of nausea and anticipatory anxiety was closely related to the delayed nausea in their prior circle of chemotherapy. Based on the FLIE assessment, about 30% of all patients reported reduced daily living function. Conclusion CINV remains a significant problem among patients in China, especially in controlling the reaction during delayed phase and nausea as well. It requires that more attention should be paid to CINV and more effective prophylaxis should be adopted in clinical practice.
Objective To investigate the information of label use of high-alert drugs for children of high risk population, in the Military General Hospital of Beijing PLA. Methods We selected high-alert drugs used in this hospital as objectives. The package inserts of these drugs were investigated and medication parts for children were analyzed. Results 201 drugs regarded as high-alert drugs were included, of which only 78 drugs have accurate detailed description of medication for children, accounting for 38.8% of the total of investigated high-alert drugs. Conclusion Children, as high-risk population, needs more attention concerning the use of high-alert drugs. However, risks in the use of high-alert drugs increased due to the lack of the information of label use of high-alert drugs. To ensure the safety of drug use in children, the information of drug use for children in the package inserts should be urgently supplemented.
Objective To investigate the current status of clinical nursing risks to nursing students, so as to provide scientific references for medical universities and policy makers. Methods The self-designed questionnaires were distributed to 360 clinical nursing students in four Third-Level hospitals. The group leaders were trained as investigators regularly. All the other nursing students were asked to fill in the questionnaire alone within 30 minutes. The questions issued were the following four aspects: general information of nursing students, clinical intern operating situation, nursing defects and awareness of nursing risks. Results Among the total 400 questionnaires distributed, 360 valid ones were retrieved (90%). The analysis showed all 21 nursing operations could be performed by students alone, and 80% of the nursing students believed that they were able to do 11 routine operations alone, such as bed-making and vital sign monitoring. The incidence rate of eight nursing defects was between 0.56% and 12.22%. As for the four questions about nursing risks, 49.44% of the nursing students operated alone before getting themselves ready because of their eagerness for such experiences. According to the nursing students, the departments with the highest nursing risks ranked as emergency, operating theatre, surgery, pediatrics, internal medicine, and gynecology and obstetrics. Conclusion The current situation of clinical nursing risks to nursing interns is still far from being satisfactory, so it is necessary to improve the training at university, regulate the clinical education, and ensure the intern safety for nursing students.
GRADE（Grades of Recommendation, Assessment, Development，and Evaluation）方法为卫生保健中的证据质量评价与推荐强度评级提供指导。对那些为系统评价、卫生技术评估及临床实践指南总结证据的人而言，GRADE具有重要意义。GRADE提供了一个系统而透明的框架用以明确问题，确定所关注的结局，总结针对某问题的证据，以及从证据到形成推荐或作出决策。GRADE方法的广泛传播与应用，获全球50余个组织认可，这些组织大多有很强的影响力（http://www.gradeworkinggroup.org/），足以证明该工作的重要性。本文介绍临床流行病学杂志将刊出的20篇系列文章，为如何使用GRADE方法提供指导。
证据质量升级的最常见原因是效应量大。当方法学严谨的观察性研究表明风险至少降低或增加2倍时，GRADE建议考虑将证据质量升高1级；当风险至少降低或增加5倍时，考虑将证据质量升高2级。当存在剂量-反应关系，或所有合理的混杂、偏倚会降低明显的治疗效应，或混杂、偏倚使得结果无效为假效应时，系统评价作者和指南制定者也可考虑升高证据质量。其他考虑因素包括起效迅速、潜在的疾病（状态）趋势以及间接证据。
Objective To provide evidence for establishing a medical risk precaution and monitoring system in China by evidence-based evaluation of the medical risk monitoring and precaution system in Canada, including the current situation and corresponding prevention measures. Method According to the unified search strategy made by our research group, we searched relevant databases and official or government websites. We included articles about medical risk management, medical error and patient safety in Canada. The included articles were classified and the quality was ranked. Results A total of 15 articles were included, among which 10 were official documents (about 2/3) and 5 described research methods (about 1/3), mainly involving medical risk management or evaluation, medical error and patient safety. In 2002, Canada established its National Steering Committee on Patient Safety (NSCPS) and proposed the suggestions to integrate health care resources accross the country, build a patient safety system, and established the Canada Patient Safety Institution (CPSI) to improve patient safety. Canada revised the patient safety management system, collected and issued related information, strengthened doctor-patient communication, developed continuous education for medical staff, practiced the best medical behavior and model and improved lawsuit procedures. These activities have achieved great progress in practice. Conclusions What have been done in Canada will provide a guide for us to establish scientific patient safety system and promote public awareness of patient safety.
The artificial ventilation system is a multi-factor system with some high uncertain risks which should be under controlled by medical risk management of hospitals. The key suggestions for reducing the accidence caused by ventilator are recommented： 1 ） to clarify the risk factor of ventilators, 2 ） to set up management group of ventilators with a clinical engineer who is good at management and quality control of medical equipment on ventilators, 3 ） to develop ventilator clinical practice for safety use, 4 ） to explore the effective risk monitoring and early warning system and mechanism on ventilator application.