Objective:To develop a robotic digestive endoscope system (RDES) and to evaluate its feasibility, safety and control performance by experiments.Methods:The RDES was designed based on the master-slave control system, which consisted of 3 parts: the integrated endoscope, including a knob and button robotic control system integrated with a gastroscope; the robotic mechanical arm system, including the base and arm, as well as the endoscopic advance-retreat control device (force-feedback function was designed) and the endoscopic axial rotation control device; the control console, including a master manipulator and an image monitor. The operator sit far away from the endoscope and controlled the master manipulator to bend the end of the endoscope and to control advance, retract and rotation of the endoscope. The air supply, water supply, suction, figure fixing and motion scaling switching was realized by pressing buttons on the master manipulator. In the endoscopy experiments performed on live pigs, 5 physicians each were in the beginner and advanced groups. Each operator operated RDES and traditional endoscope (2 weeks interval) to perform porcine gastroscopy 6 times, comparing the examination time. In the experiment of endoscopic circle drawing on the inner wall of the simulated stomach model, each operator in the two groups operated RDES 1∶1 motion scaling, 5∶1 motion scaling and ordinary endoscope to complete endoscopic circle drawing 6 times, comparing the completion time, accuracy (i.e. trajectory deviation) and workload.Results:RDES was operated normally with good force feedback function. All porcine in vivo gastroscopies were successful, without mucosal injury, bleeding or perforation. In beginner and advanced groups, the examination time of both RDES and ordinary endoscopy tended to decrease as the number of operations increased, but the decrease in time was greater for operating RDES than for operating ordinary endoscope (beginner group P=0.033; advanced group P=0.023). In the beginner group, the operators operating RDES with 1∶1 motion scaling or 5∶1 motion scaling to complete endoscopic circle drawing had shorter completion time [1.68 (1.40, 2.17) min, 1.73 (1.47, 2.37) min VS 4.13 (2.27, 5.16) min, H=32.506, P<0.001], better trajectory deviation (0.50±0.11 mm, 0.46±0.11 mm VS 0.82±0.26 mm, F=38.999, P<0.001], and less workload [42.00 (30.00, 50.33) points, 43.33 (35.33, 54.00) points VS 52.67 (48.67, 63.33) points, H=20.056, P<0.001] than operating ordinary endoscope. In the advanced group, the operators operating RDES with 1∶1 or 5∶1 motion scaling to complete endoscopic circle drawing had longer completion time than operating ordinary endoscope [1.72 (1.37, 2.53) min, 1.57 (1.25, 2.58) min VS 1.15 (0.86, 1.58) min, H=13.233, P=0.001], but trajectory deviation [0.47 (0.13, 0.57) mm, 0.44 (0.39, 0.58) mm VS 0.52 (0.42, 0.59) mm, H=3.202, P=0.202] and workload (44.62±21.77 points, 41.24±12.57 points VS 44.71±17.92 points, F=0.369, P=0.693) were not different from those of the ordinary endoscope. Conclusion:The RDES enables remote control, greatly reducing the endoscopists' workload. Additionally, it gives full play to the cooperative motion function of the large and small endoscopic knobs, making the control more flexible. Finally, it increases motion scaling switching function to make the control of endoscope more flexible and more accurate. It is also easy for beginners to learn and master, and can shorten the training period. So it can provide the possibility of remote endoscopic control and fully automated robotic endoscope.

Objective To explore the clinical application value of simple resection in the treatment of pancreatic solid pseudopapillary tumor(SPT).Methods Retrospective analysis of clinical and follow-up data of pancreatic SPT patients who underwent simple pancreatectomy and conventional pancreatectomy from January 2015 to December 2022 in the pancreatic cystic tumor database of Huashan Hospital,Fudan University.A total of 87 patients with pancreatic SPT,including 14 cases underwent simple resection and 73 cases underwent conventional resection,were included.The average age was(36.2±11.7)years old,and females accounting for 87.4％.Results The accuracy of preoperative imaging diagnosis reached 88.5％.Simple resection had a significant advantage over conventional resection in terms of surgical time[(138.3± 56.4)min vs.(241.2±89.2)min,P＜0.05].Simple resection was not inferior to conventional resection in terms of common postoperative complications.Out of 87 cases,only 3 patients in conventional resection group experienced postoperative recurrence and metastasis,and all recurrent patients were still alive.There was no statistically significant difference in postoperative pancreatic endocrine and exocrine dysfunction,and quality of life between simple resection group and conventional resection group.Conclusions Simple resection of pancreatic SPT is reasonable and feasible,but the risks in actual clinical work cannot be ignored.Therefore,selective simple resection of SPT has certain clinical application value.

Objective This study aims to discuss the research hotspot and development trend in the field of polycystic ovary syndrome(PCOS)through bibliometric statistics and visual analysis of long noncoding RNA(lncRNA)related studies.Methods Utilizing the Web of Science core database as the literature data source,we searched for PCOS lncRNA-related literature from 2015 to 2023.CiteSpace software was used to conduct a visual analysis,including the annual distribution,citation trends,countries,institutions,funding sources and key words,as well as co-occurrence and cluster analysis of key words.Results The visual analysis of 108 PCOS lncRNA literature revealed that China was the country with the highest number of publications.The first contributing institution was the Shandong University.The national natural science fund of China gave the biggest funding.The keyword cluster analysis suggested that PCOS lncRNA signal pathway regulation,related receptor activators,and the expression of regulatory factors were the research hotspots in ovary syndrome lncRNA research.Conclusion LncRNA related regulatory factors,bioinformatics analysis,and gene transcription in PCOS are new targetsfor PCOS treatment,providing valuable insights for clinical therapy and new strategies for the development of PCOS-related pharmaceuticals.

Objective:To develop and evaluate the efficacy and safety of a three-dimensional (3D) digestive endoscope for gastric endoscopic submucosal dissection (ESD) through animal experiments.Methods:Two Dutch pigs were utilized from the Zhengzhou University Animal Experiment Center for the study. ESD procedures were performed by two senior endoscopists, one using 3D glasses and the other utilizing a 3D high-definition head display. The success of ESD was assessed based on predefined criteria, including completion of surgical steps, complete detachment of the presumptive lesion, and effective bleeding control during and after the surgery. The number of successful procedures and incidences of perforation were recorded. The stereoscopic experience of the endoscopists, including both the primary endoscopist and the assistant, was also evaluated. Furthermore, the assessment encompassed any reported symptoms of eye discomfort, such as eye fatigue, ocular pain, and blurred vision. Additionally, the confidence level of the endoscopists in the mechanical aspects of the operation, as well as encountered issues during the endoscopic procedures, were documented.Results:Two ESD were successful and no perforation occurred. Feedback from endoscopists suggested that 3D digestive endoscopy offered clear images with enhanced three-dimensionality during surgery, clear sense of distance and layering, allowing for a precise judgment of bleeding points, which surpassed 2D capabilities. No eye discomfort was experienced by endoscopists or assistants during or after the procedures. While endoscopists exhibited high confidence in 3D digestive endoscopy, they noted issues with image blurring when the camera was positioned less than 10 mm from the gastrointestinal tract wall.Conclusion:Preliminary results show that 3D digestive endoscopes can provide excellent stereo imaging, improved positioning accuracy, and safety during live animal stomach ESD procedures, without significantly increasing endoscopists' eye discomfort. Nevertheless, efforts are needed to address image blurring concerns when the camera is close to the gastrointestinal tract wall.

Objective:To understand the work experience and service quality of "Internet plus Nursing Service" led by tertiary hospitals to lay the foundation for building an "Internet plus Nursing Service" quality control index system suitable for China's national conditions.Methods:Using field research method, combining purposive sampling with open sampling, from September 2021 to February 2022, the 11 "Internet plus Nursing Service" visiting nurses from 10 residential areas in Shibei District, Shinan District, Laoshan District, Chengyang District and Jimo District of Qingdao were observed for 5 months.Results:The work experience of "Internet plus Nursing Service" visiting nurses: meeting the rigid needs of society and patients, and nurses′ professional value and satisfaction were multiplied; there were still shortcomings in the regulatory mechanism, and information technology construction needed to be continuously strengthened; there were still hidden dangers in patient safety and nurse professional safety issues. Six key factors influencing the quality of Internet plus nursing service were analyzed: non-standard preparation of articles before visiting, non-standard dress for door-to-door service, inadequate preparation for pre operation evaluation, lack of empathy during operation, weak awareness of infection prevention outside the hospital, and failure to carry out health education based on patients′ conditions after operation.Conclusions:The Internet plus nursing service model is dominated by the tertiary hospitals in Qingdao, which has realized two-way referral between the community and the superior hospitals, and has effectively improved the quality of extended care. The acceptance and satisfaction of patients and their families are high, and nurses′work enthusiasm and professional value have increased significantly. It is still necessary to establish and improve theInternet plus nursing service work standards to achieve the homogenization and diversification of nursing services, promote the comprehensive quality of community medical staff.

Objective:To explore the correlation between nurses′ workplace adaptability, moral dilemma and resilience after suffering workplace violence in emergency department, in order to provide reference about improving the workplace adaptability and formulating intervention.Methods:A cross-section survey was conducted, we selected 248 nurses who had suffered workplace violence in the emergency department of five tertiary hospitals in Qingdao from January 2022 to January 2023 by convenient sampling method, and used self-designed general information questionnaire, moral dilemma scale, resilience evaluation scale for medical staff and nurses′ workplace adaptability scale to conduct a questionnaire survey on nurses who had suffered workplace violence, and found out the factors affecting their workplace adaptability.Results:The score of workplace adaptability of 248 nurses who had suffered workplace violence was (39.37 ± 12.77) points. Univariate analysis showed that education, length of emergency service, department or social part-time job, professional title, number of night shifts and sleep condition were the influencing factors of workplace fitness for emergency nurses ( t/ F values were -12.72 to 132.15, all P<0.05). The correlation analysis showed that the nurses′ workplace adaptability after workplace violence was negatively correlated with the scores and total scores of all dimensions of moral dilemma ( r values were -0.725 to -0.194, P<0.05), and positively correlated with the scores and total scores of all dimensions of resilience ( r values were 0.135 to 0.732, P<0.05). Multi-factor results showed that education background, department/social part-time job, working years, professional title, sleep status, moral dilemma and resilience were the influencing factors of nurses′ workplace adaptability after workplace violence ( t values were -9.25 to 15.25, P<0.05). Conclusions:Nurses with specialized education, emergency service for 1-3 years, no department/social part-time job, primary professional title, sleep disorder, higher degree of moral dilemma and low level of resilience have low occupational adaptability. Nursing managers should focus on such nurses and improve their occupational adaptability.

Abstract The physical health of children and adolescents has received widespread attention in recent years, and a series of problems due to unbalanced energy expenditure have come into focus. Energy expenditure in children and adolescents is influenced by multiple factors including body composition and physical activity level. By analyzing and summarizing the characteristics and specificities of energy expenditure in children and adolescents at different ages, the review aims to formulate a targeted design and implementation plans for future intervention studies.

From June 2017 to May 2021, 11 patients with insulinomas received endoscopic ultrasound-guided fine needle injection (EUS-FNI) at the Department of Gastroenterology, the Second Xiangya Hospital of Central South University. During a median follow-up of 45 months (12-60 months), symptoms of 6 patients were relieved with only 1 procedure of EUS-FNI, 4 relieved with 2 procedures, and only 1 patient required more than 2 procedures. The results above preliminarily reveal that medium to long-term efficacy of EUS-FNI for insulinoma is good.

Childhood obesity has become a global public health problem, and its incidence and development are closely related to the exposure to risk factors in early life. In recent years, more and more epidemiological research evidences have shown that breastfeeding has the modification effect on early life risk factors of childhood obesity, such as high genetic risk of obesity, maternal gestational diabetes mellitus, macrosomia and other factors. This paper reviews the research results in this field, and summarizes the modification effect of breastfeeding on childhood obesity heredity and early life environmental risk factors associated with childhood obesity, to provide a reference for the evaluation of positive effect of breastfeeding on prevention and control of obesity in specific risk groups for taking targeted measure to reduce the risk for childhood obesity.

Abstract Overweight and obesity among children is not only harmful to physical and mental health, but also associated with an increased risk of chronic diseases such as hypertension and diabetes in adulthood. Health related behavioral factors are one of the most important causes of child overweight and obesity, which commonly co occur and show a synergistic negative influence on health. The synergistic effects suggest that interventions are likely to be more cost effective and to maximize impact by targeting health risk behaviors in combination with the improvement of a variety of modificable behaviors. The present review aims to describe the update of co occurrence and clustering patterns of obesity related health risk behaviors, and proposes the future direction for prevention and control of overweight and obesity in children.