The scientific research on prevention and control of coronavirus disease 2019 (COVID-19) has been a major and urgent task, of which clinical trials occupy a pivotal position in the entire prevention and control system. 204 relative clinical trials of traditional Chinese medicine (TCM) have been registered on Chinese Clinical Trial Registry. Through the analysis of all online public protocols of registered trials, it is found that the clinical studies of TCM in China showed lack of research foundation, tight time and heavy tasks, difficult clinical implementation, and disturbance by changes of the epidemic status. Based on these characteristics, this paper put forward several thoughts and suggestions on the quality management and design improvement for clinical trials of TCM preventing and treating COVID-19, in order to improve the quality of clinical trials in China, provide effective supports for the public health decision-making on the epidemic, and also give a reference for the prevention and control of epidemics in the future.
ObjectiveTo summarize the latest research progress and related mechanisms of cancer-associated fibroblasts (CAFs) in invasion, metastasis and drug resistance of breast cancer, so as to seek the best treatment strategy for patients with breast cancer metastasis and drug resistance. MethodThe literatures about CAFs research in breast cancer in recent years were searched and summarized. ResultsCAFs was the main stromal cell in tumor microenvironment (TME). By changing TME, the biological characteristics of CAFs could be changed and the growth and invasion of breast cancer cells could be induced. CAFs in breast cancer promotes the invasion and metastasis of breast cancer cells by interacting with inflammatory factors and promoting the formation of pre-transplantation ecosystems, and CAFs also mediates chemotherapy resistance to breast cancer, target resistance, endocrine resistance, and radiation resistance through the secretion of various cellular factors. ConclusionsAt present, some progress has been made in the research of CAFs in breast cancer, but there is still a certain gap to clinical application CAFs has a variety of functional phenotypes, so it is necessary to identify and characterize specific CAFs subtypes when studying new anti-CAFs therapeutic strategies. It has been proved that CAFs has great potential as a specific target for breast cancer treatment, but CAFs still lacks specific biomarkers. Therefore, an in-depth understanding of the biological characteristics and heterogeneity of CAFs can provide a reliable theoretical basis for developing drugs targeting CAFs.
Photoplethysmography (PPG) is often affected by interference, which could lead to incorrect judgment of physiological information. Therefore, performing a quality assessment before extracting physiological information is crucial. This paper proposed a new PPG signal quality assessment by fusing multi-class features with multi-scale series information to address the problems of traditional machine learning methods with low accuracy and deep learning methods requiring a large number of samples for training. The multi-class features were extracted to reduce the dependence on the number of samples, and the multi-scale series information was extracted by a multi-scale convolutional neural network and bidirectional long short-term memory to improve the accuracy. The proposed method obtained the highest accuracy of 94.21%. It showed the best performance in all sensitivity, specificity, precision, and F1-score metrics, compared with 6 quality assessment methods on 14 700 samples from 7 experiments. This paper provides a new method for quality assessment in small samples of PPG signals and quality information mining, which is expected to be used for accurate extraction and monitoring of clinical and daily PPG physiological information.
ObjectiveTo evaluate the long-term effectiveness of vascularized fibula flap in radiocarpal joint reconstruction following excision of Campanacci grade Ⅲ giant cell tumor (GCT) of distal radius.MethodsBetween December 2010 and December 2014, 10 patients with Campanacci grade Ⅲ GCT of distal radius were treated with en bloc excision and inradiocarpal joint reconstruction using vascularized fibula flap. They were 6 males and 4 females, with an average age of 39.9 years (range, 22-65 years). The disease duration was 1.5-6.0 months (mean, 2.6 months). The length of distal radius defect was 6.0-12.5 cm (mean, 8.4 cm) after en bloc excision of GCT. Vascularized fibula flap with inferior lateral genicular vessels were performed in 6 patients and with inferior lateral genicular vessels and peroneal vessels in 4 cases.ResultsAll incisions healed by first intention. All patients were followed up 4.4-8.3 years (mean, 6.0 years). There was no tumor recurrence during follow-up. At last follow-up, the mean ranges of motion of wrist joint were 55.0° (range, 25-85°) in extension, 26.5° (range, 15-40°) in flexion, 12.0° (range, 5-25°) in radial deviation, 19.6° (range, 10-30°) in ulnar deviation, 50.5° (range, 5-90°) in pronation, and 66.5° (range, 20-90°) in supination. The mean grip strength of effected wrist was 75% (range, 60%-85%) of the healthy wrist. The mean Musculoskeletal Tumor Society (MSTS) score was 82.7% (range, 75%-90%). X-ray films showed that the fibula flap healed at 12-16 weeks after operation (mean, 14.1 weeks) and there were 9 cases of radiological complications.ConclusionFor Campanacci grade Ⅲ GCT of distal radius, application of the vascularized fibula flap in radiocarpal joint reconstruction after en bloc excision of GCT can obtain good wrist function.
Objective To compare the reduction qualities of three-dimensional visible technique without fluoroscopy and two-dimensional fluoroscopy for unstable pelvic fractures during operations. Methods The clinical data of 40 patients with unstable pelvic fractures, who met the selection criteria in three clinical centers between June 2021 and September 2022, were retrospectively analyzed. According to the reduction methods, the patients were divided into two groups. Twenty patients in trial group were treated with unlocking closed reduction system combined with three-dimensional visible technique without fluoroscopy; 20 patients in control group with unlocking closed reduction system under two-dimensional fluoroscopy. There was no significant difference in the gender, age, injury mechanism, Tile type of fracture, Injury Severity Score (ISS), and the time between injury to operation between the two groups (P>0.05). The qualities of fracture reduction according to the Matta criteria, operative time, intraoperative blood loss, fracture reduction time, times of fluoroscopy, and System Usability Scale (SUS) score were recorded and compared. Results All operations were successfully completed in both groups. According to the Matta criteria, the qualities of fracture reduction were rated as excellent in 19 patients (95%) in trial group, which was better than that in the control group (13 cases, 65%), with a significant difference (χ2=3.906, P=0.048). The operative time and intraoperative blood loss had no significant differences between the two groups (P>0.05). The fracture reduction time and times of fluoroscopy were significantly less in trial group than in control group (P<0.05), and SUS score in trial group was significantly higher in trial group than in control group (P<0.05). ConclusionCompared to using unlocking closed reduction system under two-dimensional fluoroscopy, three-dimensional visible technique without fluoroscopy can significantly improve the reduction quality of unstable pelvic fractures without prolonging the operative time, and is valuable to reduce iatrogenic radiation exposure for patients and medical workers.
Objective To investigate the effectiveness of HoloSight Orthopaedic Trauma Surgery Robot-assisted infra-acetabular screw placement for treatment of acetabular fractures. Methods The clinical data of 23 patients with acetabular fractures treated with open reduction and internal fixation and infra-acetabular screw placement in two medical centers between June 2022 and October 2023 were retrospectively analyzed. According to the the method of infra-acetabular screw placement, the patients were divided into navigation group (10 cases, using HoloSight Orthopaedic Trauma Surgery Robot-assisted screw placement) and freehand group (13 cases, using traditional X-ray fluoroscopy to guide screw placement). There was no significant difference in gender, age, body mass index, cause of injury, time from injury to operation, and Judet-Letournel classification between the two groups (P>0.05). The time of infra-acetabular screw placement, the fluoroscopy frequency, the guide pin adjustment times, the quality of screw placement, the quality of fracture reduction, and the function of hip joint were compared between the two groups. ResultsAll patients completed the operation successfully. The time of screw placement, the fluoroscopy frequency, and guide pin adjustment times in the navigation group were significantly less than those in the freehand group (P<0.05). The quality of screw placement in the navigation group was significantly better than that in the freehand group (P<0.05). Patients in both groups were followed up 6-11 months, with an average of 7.7 months. There were 9 and 9 cases in the navigation group and the freehand group who achieved excellent and good fracture reduction quality at 1 week after operation, and 12 and 12 cases with excellent and good hip joint function at last follow-up, respectively, and there was no significant difference between the two groups (P>0.05). The fractures in both groups healed well, and there was no significant difference in healing time (P>0.05). During the follow-up, there was no complication related to screw placement, such as failure of internal fixation, vascular and nerve injury, incisional hernia. ConclusionIn the treatment of acetabular fractures, compared with the traditional freehand screw placement, the HoloSight Orthopaedic Trauma Surgery Robot-assisted screw placement can reduce the time of screw placement, improve the accuracy of screw placement, and reduce the amount of radiation, which is an efficient, accurate, and safe surgical method.
Multi-disciplinary team (MDT) is increasingly applied in oncology and refractory diseases. In recent years, MDT has also been applied in diagnosis and treatment of pituitary adenoma and related diseases. This review summarizes the advantages and characteristics of the MDT diagnosis and treatment mode, and analyzes the application and effect of the MDT diagnosis and treatment mode in the Center of Pituitary Adenoma and Related Diseases, West China Hospital, Sichuan University. So far, it has shown that MDT has advantages such as it is professional, full of collaborative interaction, and efficient and optimized. It is a platform of multi-disciplinary cooperation and resources in the diagnosis and treatment of difficult diseases. Case discussion in MDT mode is conducive to timely selection of the best treatment options for patients with pituitary adenoma and related diseases, providing a good learning platform for doctors with different professional backgrounds, and promoting the improvement of professional diagnosis and treatment level of doctors in related departments. The development of MDT will help us to use limited medical resources efficiently, promote the medical team to be more specialized, optimize the diagnosis and treatment process, and improve the effectiveness of the treatment, for benefiting more patients with pituitary adenomas and related diseases.
The RE-AIM framework is the most commonly used framework for implementation research outcome evaluation, with the original paper cited 2 800 times. However, in the specific operationalization process of the framework, there are often situations of misuse or overuse of various dimensions and indicators. This article provides a detailed introduction to the main content, application scenarios, and characteristics of the RE-AIM framework. Taking the implementation research of Evidence-based Practice Guidelines for Integrated Traditional Chinese and Western Medicine Treatment of Stroke as an example, it introduces how to use the silent & anonymous feedback technology, which combines the improved Delphi method and nominal group technique, to construct an implementation outcome indicator evaluation system to achieve the operability of the RE-AIM framework. This will provide a reference for other researchers to use implementation science theories, models, and frameworks to develop implementation plans or evaluate implementation outcomes.
Objective To investigate the early effectiveness of transiliac-transsacral screws internal fixation assisted by augmented reality navigation system HoloSight (hereinafter referred to as “computer navigation system”) in the treatment of posterior pelvic ring injuries. MethodsA retrospective analysis was made in the 41 patients with posterior pelvic ring injuries who had been treated surgically with transiliac-transsacral screws between June 2022 and June 2023. The patients were divided into navigation group (18 cases, using computer navigation system to assist screw implantation) and freehand group (23 cases, using C-arm X-ray fluoroscopy to guide screw implantation) according to the different methods of transiliac-transsacral screws placement. There was no significant difference in gender, age, body mass index, causes of injuries, Tile classification of pelvic fracture, days from injury to operation, usage of unlocking closed reduction technique between the two groups (P>0.05). The time of screw implantation, the fluoroscopy times, the guide wire adjustment times of each screw, and the incidence of complications were recorded and compared between the two groups. The position of the transiliac-transsacral screw was scanned by CT within 2 days after operation, and the position of the screw was classified according to Gras standard. ResultsThe operation was successfully completed in both groups. The time of screw implantation, the fluoroscopy times, and the guide wire adjustment times of each screw in the navigation group were significantly less than those in the freehand group (P<0.05). There were 2 cases of incision infection in the freehand group, and the incision healed by first intention after active dressing change; there was no screw-related complication in the navigation group during operation and early period after operation; the difference in incidence of complications between the two groups (8.7% vs. 0) was not significant (P=0.495). According to the Gras standard, the screw position of the navigation group was significantly better than that of the freehand group (P<0.05). ConclusionCompared with the traditional freehand method, the computer navigation system assisted transiliac-transsacral screws internal fixation in the treatment of posterior pelvic ring injuries has advantages of improving the accuracy of screw implantation and reducing radiation damage and the time of screw implantation.