Objective To investigate the correlation among mammographic features、pathology and molecu-lar biology markers of breast infitrating ductal carcinoma(IDC) tissues.Methods The mammographic features of 93 cases with IDC confirmed by surgery and histopathology were analyzed retrospectively.The mastectomy specimens of the IDC were stained with immunohistochemistry,and the expression of ER、PR、C-erbB-2 were measured.The rela-tionship between the immunohistochemical pathologic results and mammographic features was analyzed.Results A-mong the 93 cases of IDC,ER positive expression was positively correlated with the spiculate margin of breast cancer (P<0.05);C-erbB-2 positive expression was positively correlated(P<0.05).Moreover,ER and PR positive expres-sion showed a significant inverse correlation with the calcifying of breast cancer(P>0.05);ER and PR positive ex-pression was positively correlated with the transfer of lymph(P<0.05);there existed correlation between the positive expression of C-erbB-2 and lymphatic metastasis and pathohistology grade(P<0.05).Conclusion There was a pos-itive correlation among IDC mammography、pathology and the abnormal value of ER、PR and C-erbB-2.The X-ray mammography could reflect the diagnosis value of ER、PR and C-erbB-2 roughly,and thadpractical value in determi-ning prognoses and endocrinotherapy.

Organ shortage is a common problem in the field of transplantation worldwide. It is urgent to expand the donor pool via different effective and safe approaches. Recently, "the statement from international collaborative on expanding controlled donation after the circulatory determination of death (cDCDD)" has attracted widespread attention from scholars. The statement aims to promote cDCDD in order to increase organ donation rates, with the ultimate goal of achieving self-sufficiency in transplantation. In this article, the key contents mentioned in the statement were summarized, the terminology update and relevant discussion of donation after the circulatory determination of death (DCDD), the development trend of DCDD, the basic part of the clinical pathway of cDCDD and the key factors affecting the implementation of cDCDD were illustrated, and the inspiration drew from this statement to the sustainable development of organ donation program in China was reflected.

At present, interdisciplinary integration has become a major feature of the development of science and technology, and multi-disciplinary integration will gradually become the norm. Professional and technological multi-disciplinary integration has unpredictable potential, which will produce new disciplinary frontiers, new fields of science and technology and new patterns of innovation. Organ donation is a new discipline in China's new era. Constructing and promoting an organ donation disciplinary system with the overall goal of safeguarding legal and reasonable rights and interests of donors and their families and the health rights and interests of the recipients are in line with the fundamental requirements of maintaining high-quality development of organ donation and transplantation in China. Meantime, organ donation is a complex medical and social behavior, and organs donated by citizens belong to national resources, which also endows organ donation with a social welfare attribute and relevance with all parties in society. In this article, the essence of current problems encountered during organ donation in China, the whole process of organ donation and theoretical knowledge, professional skills and personnel support required by donors in different clinical stages were analyzed to illustrate the necessity and feasibility of establishing an organ donation disciplinary system based on multi-disciplinary integration. Besides, how to integrate organ donation disciplinary construction into the national policy was also investigated. Taking safeguarding the rights and interests of donors, family members and recipients as the core and taking organ donation and transplantation as the main line, cooperative principles of co-creation, co-construction, mutual promotion, sharing and win-win should be upheld, aiming to promote multi-disciplinary integration and comprehensive talent cultivation of organ donation, jointly enhance the recognition rate and donation rate of organ donation, and make organ donation widely recognized by citizens from all walks of life.

Objective To assess the effects of pre-operative measurement of proximal tibia varus angle (PTA) on predicting condylar twist angle (CTA) in total knee arthroplasty (TKA).Methods The CT-scan of lower limb was performed in sixty-one health female volunteers aged 31.5 (18-38) years with 160 (153-170) cm heights from March 2016 to August 2016.The PTA,medial proximal tibial angle (MPTA) and CTA were determined.The PTA was defined between a line perpendicular to the mechanical axis of the tibia and the tangent on the internal tibial plateau.The MPTA was the medial angle between the mechanical axis of the tibia and the tangent on the internal tibial plateau.The CTA was the angle between the sTEA and the posterior condylar line.The correlations between these parameters were analyzed statistically by linear regression.Results The PTA,MPTA and CTA parameters were conformed to the normal distribution.The PTA was 2.30°± 1.86°,ranged from 1.40° to 6.50°.The MPTA was 87.7°± 1.86°,ranged from 83.50° to 88.60°.The CTA was 3.4°± 1.27°,ranged from 0.50° to 5.80°.The linear regression analysis showed a strong positive correlation between the CTA and PTA in health female knees (r=0.58,P=0.048),while negative correlation was found between the CTA and MPTA in health female knees (r=-0.58,P=0.048).There were fifty-two (85.2％) volunteers with PTA that was more than 2° and less than 4°.Six (9.8％) volunteers had PTA less than 2°,while three (4.9％) had PTA more than 4°.There were eight (13.1％) volunteers with CTA less than 3°.Forty-three (70.5％) volunteers had CTA more than 3° and less than 4°.CTA more than 4° was found in ten volunteers (16.4％).Based on these above results,two formulas were demonstrated for predicting the CTA:CTA=2.52+0.395PTA,CTA=38.06-0.390MPTA.Conclusion The CTA can be predicted by calculating the PTA by CT-scan and standard long-leg standing radiographs before TKA.Using the present method could reduce the risk of femur component malrotation and the flexion gap balancing during TKA.

Objective To investigate the indications and clinical outcomes of total knee arthroplasty or osteotomy for knee osteoarthritis subsequent to previous femur fractures.Methods Six patients (three male and three female) with knee osteoarthritis subsequent to previous femur fractures were analyzed retrospectively between February 2006 and February 2017.The average age of patients was 58.2± 10.3 years old,ranged from 51 to 79 years.Four patients underwent total joint replacement and two underwent osteotomy.The average age of patients in joint replacement group was 60.5±12.3 years old.The age of the two patients in the osteotomy group was 51 and 55 years old,respectively.The extra-articular deformity angle of the coronal plane of the femur,lateral distal femur angle of mechanical axis,hip-knee-ankle angle (HKA) of preoperative and postoperative were determined on long-standing radiography.The mean angle of the extra-articular deformity in the joint replacement group was 17.0±7.7 degrees.The angle of the extra-articular deformity in the osteotomy group was 34 and 20 degrees.Lateral distal femur angle of mechanical axis in the joint replacement group was within the range of 87±7 degrees.Lateral distal femur angle of mechanical axis in the osteotomy group was out of the range of 87±7 degrees.The mean preoperative HKA of the joint replacement group was 161.8±8.0 degrees.The preoperative HKA of the osteotomy group was 155 and 160 degrees,respectively.Knee function was estimated according to knee range of motion and Knee Society Score (KSS).The results of postoperative hip-knee-ankle angle,knee range of motion (ROM) and knee society score were compared between the two groups.Results The mean HKA of the joint replacement group reached 176.0±2.8 degrees at one year postoperatively.The HKA of the osteotomy group improved to 177 and to 175 degrees at one year postoperatively.The average preoperative knee ROM improved significantly from 71 ± 16 degrees preoperatively to 113 ±5degrees postoperatively.The mean knee ROM of the joint replacement group was 113.0±6.8 degrees.The knee ROM of two patients in the osteotomy group was 110 and 115 degrees,respectively.The average preoperative KSS score improved significantly from 46±3 preoperatively to 88±3 postoperatively.The mean KSS of the joint replacement group was 88.8±3.0,while the KSS of the osteotomy group was 85 and 82.No bone nonunion was observed in the two patients in osteotomy group.Conclusion For patients with knee osteoarthritis subsequent to previous femur fractures,satisfactory short-term clinical outcomes could be obtained by total knee arthroplasty or osteotomy with the strict selection of proper operative indications.

Objective At present, the novel coronavirus pneumonia (COVID-19) pandemic is still raging in certain regions around the globe, and the prevention and control of the pandemic should be strengthened. Under the challenges of respective social environment and allocation of medical resources, and support from the inertia and inherent productivity of the system on which the industry depends, extensive attempts are being delivered to push forward the work of organ donation and transplantation in each country. Under the guidance of national experts and committee members, Shanxi Provincial Human Organ Procurement and Allocation Service Center was established on August 28, 2018 approved by the former Shanxi Provincial Health and Family Planning Commission. It is the only independent non-profit medical institution in Shanxi Province. In this article, the system construction of citizen's organ donation and transplantation fitting national and provincial conditions was further explored according to the data analysis of organ donation and transplantation in the United States and Spain during the COVID-19 pandemic combined with the implementation of organ donation work in Shanxi Provincial Human Organ Procurement and Allocation Service Center.

In recent years, organ donation and transplantation have entered a stage of steady development in China. Nevertheless, the shortage of transplant organs and the contradiction between supply and demand of organs are still the bottlenecks to achieve the strategy of "self-sufficiency in organ transplantation" advocated by the World Health Organization (WHO). The key reasons for donor loss described in the "critical pathway of organ donation" defined by the WHO include the identification and referral of potential donors and the maintenance and repair of organs. Smooth development, high efficiency and high-quality development of organ donation cannot be achieved without the support of intensive care medicine, which are highly associated with the cognition, recognition and participation of intensive care unit(ICU) staff. In this article, research progress in ICU staff’s cognition, attitude and willingness for organ donation were reviewed and relevant influencing factors were discussed, aiming to offer targeted suggestions on how to resolve these difficulties.