The primary principle of evidence-based medicine is that the best clinical decision-making is derived from clinical problems with combination of patient’s preferences with clinical experience and the best evidence. Evidence-based medicine by its nature, is a specific application on the evaluation of medical hypothesis. It also emphasize the importance of humanism in clinical practice. Our study explored the scientific and humanistic characteristics of evidence-based medicine from the prospective of philosophy, so as to facilitate the extensive application of evidence based practice paradigm in other fields.
The majority of problems are comprehensive and complex in the modern society, which leads to the increasing contradictions in the specialization and comprehensiveness of knowledge. Interdisciplinary cooperation is one approach to improve the effectiveness and transferability. The primary principle of evidence-based medicine is its scientific and transparent procedures. It combines the patient’s preferences with clinical experience and the best evidence. Meanwhile, evidence-based medicine is focused on how to transfer research outcomes into practice and the re-evaluation of the result of practice in order to striving for perfections. Combining this practical pattern of evidence-based medicine with other disciplines can have a significant improvement on scientific methods and thinking patterns, and become an effective way to improve the quality of scientific research and promote the transformation.
The social needs, disciplinary development and humanistic reflection has promoted the emergence and development of evidence-based medicine. Moreover, evidence-based medicine-problems oriented research, evidence based decision, transferring results to practice and outcome evaluation-continues to meet society demands, promote the development of discipline and show humanist concern. The application of evidence-based medicine has gradually extended from the field of clinical medicine to the public health, society, management, economy, policy research and education in the process of solving various problems. The high quality evidence has also been important to decision-making in these fields. Our study explored the emergence and development of evidence-based medicine from the perspective of social needs, disciplinary development and humanistic reflection for the first time.
【摘要】 目的 探讨预混门冬胰岛素对2型糖尿病（type 2 diabetes mellitus，T2DM）患者血浆成纤维细胞生长因子-21（fibroblast growth factor-21，FGF-21）水平的影响。 方法 2008年2—12月采用酶联免疫吸附试验测定44例正常人及37例采用预混门冬胰岛素治疗前后的T2DM患者的血浆FGF-21水平，分析血浆FGF-21水平与体质量指数（body mass index，BMI）、体内脂肪百分比（FAT%）、腰臀比、血脂、血糖、糖化血红蛋白（hemoglobin A1c， HbA1c）、游离脂肪酸（free fatty acid，FFA）等的关系。 结果 治疗前T2DM组患者血浆FGF-21[（1.79±0.04） μg/L]水平明显高于正常对照组[（1.35± 0.21） μg/L]，差异有统计学意义（Plt;0.01）。T2DM组经16周预混人胰岛素类似物（BIAsp 50和BIAsp 30）治疗后FFA、HbA1c、空腹血糖、餐后2 h血糖均降低（Plt;0.01），空腹血浆FGF-21水平降低至（1.33±0.39） μg/L，与治疗前比较差异有统计学意义（Plt;0.01）。相关分析发现T2DM组患者血浆FGF-21水平与BMI呈正相关（r=0.53，Plt;0.01），BMI是影响T2DM患者血浆FGF-21水平的独立相关因素。 结论 预混人胰岛素类似物能有效改善T2DM患者代谢紊乱，同时能显著降低FGF-21水平。【Abstract】 Objective To investigate the effects of treatment with aspart insulin on plasma fibroblast growth factor-21 (FGF-21) levels in patients with type 2 diabetes mellitus (T2DM). Methods From February to December 2008, plasma FGF-21 levels were measured by enzyme-linked immunosorbent assay in 37 patients with T2DM treated with aspart insulin and 44 normal controls. The relationship between plasma FGF-21 levels and body mass index (BMI), percentage of body fat (FAT%), waist-hip ratio (WHR), blood lipid, blood glucose, hemoglobin A1c (HbA1c), and free fatty acid (FFA) was analyzed. Results Before treatment, plasma FGF-21 level was significantly higher in T2DM patients [(1.79±0.04) μg/L] than that in the normal controls [(1.35±0.21) μg/L] (Plt;0.01). After 16 weeks of treatment with premixed human insulin analogues (BIAsp 50 and BIAsp 30), FFA, HbA1c, fasting plasma glucose and 2-hour postprandial blood glucose decreased significantly (Plt;0.01), and fasting plasma FGF-21 level decreased to (1.33±0.39) μg/L which was significantly different from that before treatment (Plt;0.01). Correlation analysis showed that plasma FGF-21 level was positively correlated with BMI (r=0.53,Plt;0.01), which was an independent factor in influencing the FGF-21 level in the patients. Conclusion Aspart insulin treatment can remarkably improve glucose metabolism and significantly decrease the fasting plasma FGF-21 level.
ObjectiveTo verify the feasibility of a self-designed magnetic anchoring and traction device (MATD) for assisting two-port video-assisted thoracoscopic esophagectomy.MethodsThree Beagle dogs were selected as animal models with age ranging from 1-6 years and weight ranging from 8-12 kg, and they underwent two-port video-assisted thoracoscopic esophagectomy after general anesthesia. We used the MATD to retract the esophagus to different directions, which assisted mobilizing esophagus, detecting the nerves along esophagus and dissecting paraesophagus lymph nodes. The operation time, blood loss and feasibility of the MATD were recorded.ResultsWith the aid of the MATD, we successfully retracted and mobilized the esophagus, detected the nerves and dissected the lymph nodes in three Beagle dog models. During the operation, the MATD provided sufficient and steady traction of esophagus to achieve a good exposure of the operative field, effectively decreasing the interference between working instruments. The MATD worked well. The mean operation time was 30 min, and the mean intraoperative blood loss was about 10 mL.ConclusionIt is effective to use the MATD to assist retracting esophagus during video-assisted thoracoscopic esophagectomy. The magnetic anchoring and traction technique can assist to expose the surgical field, decrease the interference between the working instruments and have the potential clinical application.
ObjectiveTo estimate the level and evolving pattern of peptic ulcer disease (PUD) burden from 1990 to 2019. MethodsThe related data of PUD from 1990 to 2019 were obtained from GBD 2019 database. The corresponding age-standardized rate, annual percentage change, average annual percentage change were calculated and analyzed by Excel and R software. ResultsThe global standardized prevalence of PUD was 99.4/100 000 (95%CI 83.9 to 117.5) in 2019, and decreased from 143.4/100 000 (95%CI 120.5 to 170.2) in 1990. The standardized disability-adjusted disease years (DALYs) rate was 74.4 (95%CI 69.0 to 81.9) in 2019. The estimated annual percentage change (EAPC) from 1990 to 2019 was −3.47% (95%CI −3.58 to −3.37), indicating that the standardized DALYs rate was declining. The prevalence and DALYs of PUD increased with age. The standardized DALYs rate was higher in males than in females in the same age group. Sociodemographic index (SDI) was negatively correlated with the standardized prevalence of PUD (R=−0.45, P<2.2e−16) and the standardized DALYs rate (R=−0.79, P<2.2e−16). ConclusionThe worldwide burden of PUD declined from 1990 to 2019, but the decline had begun to slow or pause in countries with better economic development levels.
Magnetic anchoring and traction technique is one of the core technologies of magnetic surgery. With the "non-contact" traction force of the outer magnet on the inner magnet, we can drive the inner magnet and the gripper to multiple directions, and pull tissue or organ to required position in operations, so as to get a clearer surgical field of view. On the basis of the previous animal experiments, we applied magnetic anchoring and traction device in 3 human (males aged 63-71 years) thoracoscopic esophagectomies. Using the magnetic anchoring device, we could pull the esophagus dorsally or ventrally to assist in exposing the anatomical plane without special equipment or pleural puncture for retraction of the esophagus. The interference between operating instruments reduced. The mean blood loss in operation was 83 mL, the mean total operation time was 253 min and the mean length of hospital stay was 10 d. Postoperative follow-up showed that all 3 patients had good short-term prognosis. There was no swellling or pain in magnetic anchoring zone of chest wall.