With the continuous promotion of China’s medical and health system reform, the problem of unreasonable medical examination has gradually become prominent after the elimination of “raising healthcare by medicine” and “raising healthcare by medical device”, which has become the core of aggravating the economic burden of patients’ diseases. Based on the current situation of medical examination control mechanism in China, this study explores the medical examination control mechanism including institutional restraint mechanism, supervision and management mechanism, quality control mechanism from external regulation and internal control, so as to regulate the medical examination behavior, realize the normalization of supervision and management, promote the continuous improvement of medical examination quality, in order to enhance the rationality of medical examination. It is expected to provide a theoretical basis for health departments to explore and perfect the control mechanism of the medical examination.
Objective To study the relationship between the expression ratio of induced nitric oxide synthase (iNOS) over glial fibrillary acidic protein (GFAP) and the time of injury after brain concussion in rat, in order to acquire a new visual angle for determining injury time of cerebral concussion. Methods Eighty-five healthy Sprague-Dawley rats were divided into three groups randomly: model group (n=25), experimental group (n=55), and control group (n=5). The rats in the model group were used to confirm the attack hight to make the model of brain concussion; according to the time of execution, rats in the experimental group were then subdivided into 11 groups with 5 rats in each subgroup, and their execution time was respectively hour 0.5, 1, 3, 6, 12, 24, 48, 96, 168, 240, and 336; the rats in the control group were executed after fed for 24 hours. After the model of cerebral concussion was established through freefalling dart method, hematoxylin-eosin staining and immunohistochemistry staining of iNOS and GFAP were conducted for the brain of the rats. All related experimental results were studied by using microscope with image analytical system and homologous statistics. Results The ratio of positive expression of iNOS over that of GFAP increased gradually during hour 0.5- 3 after injury in brain (from 5.03 to 10.47). At the same time, the positive expression of iNOS increased significantly (from 14.61% to 37.45%). However, the increase of the positive expression of GFAP was not obvious. Between hour 3 and 12, the ratio began to decline to 4.98, which was still at a high level, and during the same time period, the positive expressions of iNOS and GFAP also experienced the same change pattern. Later, the ratio began to decline between hour 12 and 336 after injury (from 4.98 to 0.95). All ratios at this time were lower than those between hour 0.5 and 12. The positive expression of iNOS and GFAP both increased to a climax before declining. Conclusions The ratio of positive expression of iNOS over GFAP and the respective change pattern of iNOS and GFAP can be used as the evidence of estimating the injury time of cerebral concussion. We can use the ratio of two or more markers to provide a new visual angle for concluding the concussion injury time.
The current quantitative methods of bilirubin have disadvantages such as high cost and low sensitivity. Due to the negative correlation between the level of serum bilirubin and the risk of cardiovascular diseases, a fluorescent ratiometric film sensor was developed aiming at bilirubin detection at low level concentration. Blue-emitting and red-emitting gold nanoclusters were assembled into the same film using layer-by-layer self-assembly technology. Detection of bilirubin was achieved based on the intensity ratio of the two nanoclusters. Bilirubin exposure causes fluorescent quenching of the film. The fluorescence intensity ratio of the two cluster probes had quantitative relationship versus bilirubin concentration. Based on this film sensor, a portable fluorescence detection system was designed for the ratiometric sensing of bilirubin. The hardware of the system was mainly composed of main control chip STM32F407, TSL237 and TSL238T optical frequency sensor. A light-avoiding dark room and detection light path were designed through three-dimensional printing to reduce the interference from ambient light and improve detection accuracy. Experimental results showed that the proposed detection system had strong anti-interference, good stability and accuracy. The linear coefficient of bilirubin detected by this system was 0.987. The system presented good results in reproducible experiments and possessed a good linear relationship with the data obtained by standard spectrofluorometer. The portable system is expected to detect serum bilirubin at low levels.
Objective To analyze the rationality of emergency medication in the West China Hospital after Lushan earthquake based on the actual drug use of earthquake victims. Methods We applied DDDs and DUI as evaluation index, input data using Excel software, and analyzed if the emergency medication was required for the injury/illness and the rationality of emergency medication. Results Earthquake victims mainly had trauma and wound infection and they were given antibiotics as main treatment one week after the earthquake. Drugs for the respiratory system and digestive system were mainly used in patients who mainly manifested as non-traumatic diseases and internal diseases four weeks after the earthquake. Among 49 kinds of drugs which could be calculated for the value of DUI, injection accounted for a larger proportion than non-injection (59.18% vs. 40.82%). The results showed that, the medication (DUI=1) only accounted for 12.24%; the medication (DUIlt;1, Mean=0.65) accounted for 38.78%, which implied insufficient drug use; the medication (DUIgt;1, Mean=1.77) accounted for 46.94%, which implied drug overuse. Conclusion Medication for every system is basically timely and rational when treating symptoms and causes in the West China Hospital within one month after Lushan earthquake. However, the rationality of emergency medications using DUI=1 under normal conditions still needs to be further verified.
Objective To investigate drug usage and costs of chronic obstructive pulmonary disease (COPD) inpatients in Karamay Central Hospital in 2014 and to provide evidence and reference for evidence-based pharmacy study on COPD. Methods The information of drug use and expenditure of COPD inpatients were collected from the hospital information system (HIS). We analyzed the data including frequency, proportion and cumulative proportion by Excel 2007 software. Results A total of 194 inpatients with COPD/AECOPD were included in Karamay Central Hospital in 2014, the average age was 74.28±7.81 years old. Fifty-three drugs were used for COPD treatment; the total frequency were 1 798 times and per capita cost was 7 419.78 yuan. The top three used drugs were budesonide suspension, montelukast tablets and methylprednisolone injection. In total expenditure, the cost of piperacillin-tazobactam, imipenem/cilastatin and moxifloxacin injection ranked top three. Conclusion The top 3 used drugs are budesonide suspension, montelukast tablets and methylprednisolone injection for COPD inpatients in Karamay Central Hospital in 2014, while the top 3 total expenditure drugs are piperacillin-tazobactam, imipenem/cilastatin and moxifloxacin injection.
Objective To investigate the awareness of rational use of drug (RUD) on medical workers in hospitals of different ranks, the establishment and execution of relevant strategies in hospitals of different ranks, and the main factors affecting RUD on medical workers, so as to provide references for the generalization of RUD. Methods A certain number of different ranks of hospitals in Chengdu and Zigong were randomly selected by the convenience sample method. Medical workers in each hospital were selected through face-to-face interviews with a self-designed questionnaire. Monte Carlo Chi-square analysis was applied on the hospital ranks and formulation of RUD guidelines, and logistic regression analysis was performed on the awareness of RUD knowledge of the respondents. Results Among 700 questionnaires distributed, 672 were retrieved (response rate 96.0%). The numbers of respondents who were familiar with the Pharmaceutical Affairs Councils (PACs) as well as the Pharmacy and Therapeutics Committees (PTCs) were 217 (32.29%) and 83 (12.35%), respectively. The number of respondents who understood the concept of essential medicine was 502 (74.71%). A total of 441 (61.16%) medical workers had been trained on RUD, 199 (29.61%) medical workers denied there were PTCs in their hospitals, and 60.71% of the medical workers mentioned that the use of drug was monitored and controlled with the feedback in their hospitals. The result of logistic regression analysis indicated that the professional title (P=0.038), awareness of essential medicine (Plt;0.001) and participation of RUD training (P=0.008) were the factors influencing the awareness of RUD. Conclusion Both management and education should be executed at the same time to elevate the level of rational use of drug. In order to increase the level of RUD we should complete monitoring institution and improving RUD awareness of workers. Additionally enhancing the rationality of medication should be performed by establishing guidelines of treatment or medication. Improving personal knowledge, scientific information and medication custom should be performed by standardizing regulations, strengthening management, emphasizing education and promoting communication between doctors and patients.
Objective To study the relationship between the expression ratio of heat shock protein (HSP) 70 to C-fos in organs outside the brain after brain concussion and the time of injury in rats, in order to provide a new visual angle for determining injury time of brain concussion. Methods The model of brain concussion was established through free falling method. Then the rats were executed at 30 minutes, 1 hour, and 3, 6, 12, 24, 48, 96, 168, 240, 336 hours after injury. Immunohistochemistry staining of C-fos and HSP70 were used in the materials from the main organs including heart, liver, spleen, lung and kidney. All related experiment results were studied by using a microscope with image analytical system and homologous statistics. Results From 30 minutes to 6 hours after injury, the proportion of HSP70 immuno-positive cells increased slowly, while the proportion of C-fos immuno-positive cells increased rapidly, and the ratio of HSP70/C-fos positive cells was on the decline. From 6 to 12 hours after injury, the proportion of HSP70 immuno-positive cells rose continuously, while the proportion of C-fos immuno-positive cells started to decrease, and the HSP70/C-fos ratio showed a rising tendency. From 12 to 336 hours after injury, the proportion of HSP70 immuno-positive cells decreased slowly, while the proportion of C-fos immuno-positive cells decreased rapidly, and the HSP70/C-fos ratio was still on the rise. Conclusions The proportion of positive cells and ratio of the two markers in the main organs including heart, liver, spleen, lung and kidney are similar to those in the brain of rats after brain concussion. Observing the proportion of positive cells of the two markers together with their ratio in the main organs outside the brain may provide a reference for the determination of injury time after brain concussion.
Objective To investigate the spectrum of diseases and the current situation of antibiotic use in rural hospitals and community health service centers in Chengdu, so as to provide evidence for selecting essential medicines and promoting rational use of antibiotics. Method We selected 7 township/community health institutions, from which we collected inpatient and outpatient information. Information about antibiotic use was also collected, including categories, cost, and dosage. A standard questionnaire was used to investigate physicians’ prescription behavior for principal diseases. Result Urban and rural areas had different spectrums of diseases. The major diseases in urban areas included diabetes mellitus, hypertension, chronic obstructive pulmonary disease, and respiratory tract infection; while those in rural areas were infectious diseases of the respiratory system, digestive system, and urinary system. The physicians’ prescription behavior was mainly based on their personal experience. Antibiotics accounted for 30-50% of the total medicine cost. The top four types of antibiotics with the highest cost were cephalosporins, penicillin, quinolones, and macrolides. Conclusion Based on the different spectrums of diseases, essential drug lists and standard treatment guidelines appropriate for rural health care should be developed to improve the rational use of drugs. Factors such as the average cost of daily dose and the course of treatment should be taken into consideration to reduce the overall cost of medicine. An antimicrobial resistance monitoring system and special training courses on rational use of antibiotics should be utilized in the rural health institutions.
Objective To evaluate the rationality of drug treatment for cardiovascular diseases in aged people and the effects of evidence-based practice. Methods Descriptive study was conducted to compare the therapies for the patients suffering from cardiovascular diseases before and after evidence-based practice by investigating drug use during 1998-1999 (211 cases) and 2002-2003 (211 cases). Results Among antihypertensive drugs, the ACEIs and diuretics played a more important role than before. CCBs and ACEIs were still the most frequently used drugs, and drug combination was more common, comparing to that before evidence-based practice. Lipid lowering drugs and ACEIs were used more common in coronary heart disease. Quality of life of patients was more emphasized and combination use of anti-anxiety drugs was adopted. When treating heart failure, β-receptor blockers, aldadinc and ACEIs were more frequently used. Conclusions After evidence-based practice, drug use is much more based on evidence instead of experience and textbook. As a result, the rate of reaching ideal blood pressure is higher than before. The rate of rational drug use before and after evidence-based practice has increased from 42% to 78%, respectively.
Objective To investigate drug usage and costs of pneumonia inpatients in Karamay Central Hospital in 2014 and to provide baseline for evidence-based pharmacy study of single disease in respiratory system. Methods The information of drug use and expenditure of pneumonia inpatients were collected from the hospital information system (HIS). We analyzed the data including frequency, proportion and cumulative proportion by Excel 2007 software. Results A total of 309 inpatients were included, among the 78.96% were more than 60 years old. Among the antibiotics single therapy, the frequency of cefoperazone and sulbactam was the highest. Among the antibiotics combination therapy, the frequency of β-lactam antibiotics was the highest. Conclusion Pneumonia inpatients in Karamay Central Hospital are mainly older patients. The β-lactam antibiotics is used most in clinical practice.