[Objective] To analyze the loss rate of platelet donors and evaluate the strategies for establishing a platelet donor bank. [Methods] A total of 1 443 donors who joined the HLA and HPA gene donor bank for platelets in Henan Province from 2018 to 2020 were included in this study. Data on the total number of apheresis platelet donations, annual donation frequency, age at enrollment, donation habits (including the number of platelets donated per session and whether they had previously donated whole blood), and enrollment location were collected from the platelet donor information management system. Donor loss was determined based on the date of their last donation. The loss rates of different groups under various conditions were compared to assess the enrollment strategies. [Results] By the time the platelet bank was officially operational in 2022, 421 donors had been lost, resulting in an loss rate of 29% (421/1 443). By the end of 2023, the overall cumulative loss rate reached 52% (746/1 443). The loss rate was lower than the overall level in groups meeting any of the following conditions: total apheresis platelet donations exceeding 50, annual donation frequency of 10 or more, age at enrollment of 40 years or older, donation of more than a single therapeutic dose per session, or a history of whole blood donation two or more times. Additionally, loss rates varied across different enrollment locations, with higher enrollment numbers generally associated with higher loss rates. [Conclusion] Through a comprehensive analysis of donor loss, our center has adjusted its strategies for establishing the donor pool. These findings also provide valuable insights for other blood collection and supply institutions in building platelet donor banks.

Objective:To explore the onset characteristics and pathophysiological changes of simple liver cyst in Beijing.Methods:A retrospective cohort study was used. The physical examination data of Department of Health Management of Xuanwu Hospital of Capital Medical University for 10 years from January 1, 2012 to December 31, 2021 were analyzed. Selected clinical data of 37 389 subjects with 2 or more repeated ultrasound examinations, including 17 759 males, 19 630 females, aged (44.4±16.2) years, ranged from 22-103 years. 3 431 cases hepatic cyst were confirmed by repeated ultrasound examination, the data of the liver cyst formation after the same physical examination were the study group ( n=3 431), and the data before cyst formation were the control group ( n=3 431). The observation indicators included: (1) the epidemiological characteristics of liver cysts; (2) the age distribution of the incidence of liver cysts; (3) the gender distribution of the incidence of liver cysts; (4) the pathophysiological changes of liver cysts.Measurement data of normal distribution were expressed as mean±standard deviation ( ± s). The measurement data of skewed distribution were expressed as M ( Q1, Q3), using Wilcoxon signed rank sum test for comparing groups and chi-square test for comparing count data. The factors associated with hepatic cyst pathogenesis were summarized by multivariate Logistic regression. Results:The overall incidence of hepatic cysts was 9.18%, 9.78% in males, 8.63% in females, and the incidence of males was greater than that of females. The incidence of males over 70 to 79 years old decreased slightly, and the incidence in males and females in the other age groups increased with age.Results of multivariate Logistic analysis showed age ( OR=1.01, 95% CI: 1.01-1.02, P<0.01), waist circumference( OR=1.02, 95% CI: 1.01-1.02, P<0.01), systolic blood pressure ( OR=1.00, 95% CI: 0.99-1.00, P=0.013), ALT ( OR=0.99, 95% CI: 0.98-1.00, P<0.01), AST ( OR=1.03, 95% CI: 1.02-1.04, P<0.01), triglyceride lipids ( OR=0.90, 95% CI: 0.86-0.95, P<0.01), HDL( OR=0.71, 95% CI: 0.60-0.83, P<0.01), uric acid ( OR=1.00, 95% CI: 1.00-1.00, P<0.01), creatinine ( OR=0.99, 95% CI: 0.99-0.99, P<0.01) were the factors influencing the occurrence of liver cysts. Conclusions:The incidence of liver cysts increased linearly with age, and the incidence of males was greater than that of females. Age, waist circumference, systolic blood pressure, ALT, AST, triglycerides, HDL, uric acid, and creatinine may interact with the occurrence and development of liver cysts.

Objective To analyze the differences in static balance plantar pressure characteristics between female adolescent idiopathic scoliosis(AIS)patients with moderate Lenke 3CN and healthy adolescents of the same age,and provide a scientific basis for scoliosis screening,assessment,treatment,and prognosis evaluation.Methods A total of 30 female patients with moderate Lenke 3CN AIS as the AIS group and 30 healthy female adolescents of the same age as the control group were selected,respectively.The plantar pressure data of the subjects were collected,and the characteristics of equilibrium plantar pressure distributions in two groups were comparatively analyzed.Results Regarding the plantar pressure characteristics,the average pressure(P<0.05)and hindfoot pressure(P<0.05)of the left and right foot in the AIS group were significantly greater than those of the control group,the forefoot pressure was significantly lower than that of the control group(P<0.05),and the symmetry index(SI)of both feet was significantly greater than that of the control group(P<0.05).The plantar pressure of the left foot in the AIS group was significantly larger than that of the control group in the medial mid-foot area and 1st toe area(P<0.05),and significantly smaller than that of the control group in the 1st,2nd,3rd,4th and 5th metatarsal areas(P<0.05);the plantar pressure of the right foot in the AIS group was significantly greater than that of the control group in the medial heel area and the1st toe area(P<0.05),and significantly smaller than that of the control group in the lateral mid-foot area,the 3rd,4th,5th metatarsal area and 3rd,4th,5th toe area(P<0.05);and the plantar pressure in the right foot of the AIS group was significantly smaller than that of the control group in the medial heel area and 1st toe area(P<0.05).The plantar pressures at lateral midfoot area,the 3rd,4th,5th metatarsal area and the 3rd,4th,5th toe area of the right foot were significantly larger than those of the control group(P<0.05).Regarding the center of pressure(COP),the length of the COP trajectory,the ellipse area of the 95%confidence interval,the maximum distance of COP left-right movement(COP-X),and the maximum distance of COP anterior-posterior movement(COP-Y)of the AIS group were significantly larger than those of the control group(P<0.05).Conclusions There are significant differences in static balance plantar pressure characteristics between female AIS patients with moderate Lenke 3CN and healthy female adolescents of the same age,with foot pressure favoring the side of the lateral convexity,poorer symmetry and stability of the feet,and weaker balance control.

Objective To analyze the epidemiological characteristics of new elderly malignant tumor cases in Tongren City from 2018 to 2022, so as to provide a theoretical basis for the prevention and control of elderly malignant tumor in this area. Methods A retrospective analysis of the epidemiological characteristics of cases aged 60 and above who were first diagnosed with malignant tumors by pathology in our hospital from 2018 to 2022 was conducted based on the International Classification of Diseases (ICD-10). Results The incidence rate of elderly malignant tumors in Tongren City increased from 123.83/100 000 in 2018 to 126.14/100 000 in 2022, and the incidence rate showed a trend of first rising and then declining. The top five tumors in incidence rate are lung cancer, rectal cancer, liver cancer, stomach cancer and cervical cancer. The tumor order has changed over the years except lung cancer, which was the first. Lung cancer was the main high incidence tumor among the elderly of all ages. With the increase of age, the number of bladder cancer patients increases significantly, and the number of colon cancer patients also shows an upward trend. The prevalence rate of lung cancer（χ²=16.032，P=0.014) , liver cancer（χ²=8.099，P=0.030) , bladder cancer（χ²=11.274 , P=0.018) , and gastric cancer（χ²=19.387 , P=0.011) in elderly people of different sexes was generally higher in men than in women, and the difference was statistically significant (P<0.05). Conclusion Lung cancer , rectal cancer and liver cancer, as the malignant tumors with high case composition and rapid increase in the elderly, can be the focus of early screening and prevention of malignant tumors in the elderly in Tongren City, and men should pay more attention.

Cholecystolithiasis is a common clinical disease, which can be secondary to cholecystitis, cholangitis, pancreatitis and gallbladder cancer. Many patients with gallstone have no obvious clinical symptoms such as biliary colic. Some patients are indeed asymptomatic because there are not obstruction and inflammation. However, some patients have no symptoms due to ignorance, mistaken for stomach pain, enteritis, etc. Some patients have no symptoms because of insensitivity and insufficient perception. For other patients with abnormal gallbladder morphology and structure, non-functional gallbladder must be no pain. To clarify the concept, diagnosis and classification of asymptomatic gallstones according to pathophysiological stages is conducive to the development of personalized management strategies. According to guidelines formulated by different periods, different regions and different medical institutions, there are many controversies regarding the management of asymptomatic gallstones, including regular follow-up, drug treatment, surgical resection or gallblades-saving lithotomy. Reasonable personalized diagnosis and treatment requires more in-depth basic research evidence.

Gallstone is a common and frequent disease and frequent incidence, secondary infection and cancer seriously affect the health of patients. Academic organizations in different regions have issued multiple guidelines and consensus to promote the normative diagnosis and treatment of gallstones. However, in clinical practice, most symptomatic gallstones are treated, while the formation and prevention process of gallstones are ignored, making the concept of treating without a disease has not been strengthened.This article reviews the risk factors and mechanisms of gallstone formation, and points out the importance of effective prevention during stone formation. In the stage of gallstone formation, the high risk factors of stone formation can be analyzed through two aspects of injury factors and protective factors, and the high risk groups of stone formation can be screened out. According to the pathophysiological progression of gallstones, personalized prevention and follow-up strategies can be developed for the stone formation stage of gallstones.

Objective:To explore the pathogenesis of gallbladder cholesteryl polyps (GCP) and gallbladder cholesterol calculus (GCC) by studying the different changes of mucin (MUC) expression and reverse cholesterol transporter (RCT) in gallbladder mucosa epithelium.Methods:The data of 10 GCP patients (GCP group), 10 GCC patients (GCC group) and 5 patients with normal gallbladder resection (control group) were retrospectively analyzed, who underwent cholecystectomy in the Department of General Surgery, Xuanwu Hospital, Capital Medical University from January to December 2021. Among the 10 patients in the GCP group, there were 5 males and 5 females, aged (43.40±9.59) years old. Among the 10 patients in the GCC group, 5 males and 5 female, aged (45.00±8.13) years old. Among the 5 patients in the control group, there were 3 males and 2 females, aged (43.80±6.01) years old. Immunohistochemical analysis was used to investigate the expression differences of various subtypes of MUC and RCT [ATP binding cassette transporter G1 (ABCG1) and B group type I scavenger receptor (SR-BI)] among each group.Results:Compared with the control group, the expression of MUC1 (3.40±0.70 vs. 0), MUC5AC (1.50±0.53 vs. 0), MUC6 (4.70±0.48 vs. 0), and ABCG1 (3.50±0.53 vs. 1.60±0.55) in the gallbladder mucosa of the GCP group increased, while the expression score of SR-BI decreased (1.70±0.48 vs. 3.40±0.55), with statistical significance (all P<0.001). Compared with the control group, the expression of MUC1 (4.80±0.42 vs. 0), MUC5AC (4.70±0.48 vs. 0), MUC6 (3.30±0.67 vs. 0), and ABCG1 (3.40±0.52 vs. 1.60±0.55) in the gallbladder mucosa of the GCC group increased, while the expression score of SR-BI decreased (0 vs. 3.40±0.55), with statistically significant differences (all P<0.001). Conclusion:The different expression levels of MUC1, MUC5AC, MUC6, and RCT proteins lead to the differential formation of GCP and GCC on the basis of the co-pathogenesis in high cholesterol in bile.

Multidisciplinary comprehensive treatment is the best medical model for liver cancer at present, and combined local and systemic treatment can prolong the survival period and improve the quality of life of patients. Local thermal ablation therapy represented by radiofrequency ablation has the advantages of precision and minimally invasive, easy operation, and precise efficacy, and has been increasingly widely used in the clinical application of hepatocellular carcinoma treatment. Radiofrequency ablation, as a precise and minimally invasive local thermal ablation therapy, can increase the efficacy, reduce the occurrence of complications of patients by combining with systemic therapies, such as surgery, interventional therapy, chemotherapy and targeted therapy. In this paper, the clinical application progress of radiofrequency ablation in hepatocellular carcinoma treatment is reviewed, and the combined therapeutic program of radiofrequency ablation in hepatocellular carcinoma in the era of multidisciplinary comprehensive treatment is discussed. For patients with advanced hepatocellular carcinoma, radiofrequency ablation combined with chemotherapy, targeted therapy and immunotherapy has shown good effects in the treatment, which is expected to bring more benefits to patients with advanced hepatocellular carcinoma in the future.

World Society of Emergency Surgery (WSES), in conjunction with Surgical Infection Society Europe (SIS-E), World Surgical Infection Society (WSIS), American Association for the Surgery of Trauma (AAST), and Global Alliance for Infection in Surgery (GAIS) developed guideline about the management of acute abdomen in immunocompromised patients, which was published in the World Journal of Emergency Surgery (WJES) on August 9, 2021. The guidelines elaborate on the definition, classification, diagnosis and treatment of immunocompromised patients. In addition, based on evidence-based medicine, it provides guidance and suggestion on the management of specific acute abdominal infections in immunocompromised patients, common acute abdominal infections in transplanted patients, patients with human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS), as well as perioperative steroid management. An interpretation of the guideline was performed to accomplish a better understanding the current status and recommendations for the management of acute abdominal conditions in immunocompromised patients, and to make forward suggestions on its limitations.

Objective:To investigate the causes and prognosis of salvage cholecystectomy for relapsing cholecystolithiasis after gallbladder-preserving gall stones removal surgery.Methods:From Jul 2015 to Dec 2019, 24 referral patients with gallstone recurrence after gallbladder-preserving cholelithotomy surgery received salvage cholecystectomy. The clinical data was analyzed to explore the causes for re-operation and the prognosis.Results:Twenty-two cases had definite gallstone recurrence, among them 19 cases were symptomatic, 2 cases were operated on suspected gallbladder tumor and common bile duct stones induced acute cholangitis. Laparoscopic cholecystectomy was successfully performed in 23 cases and 1 case was converted to open surgery. No severe complication were observed in all the patients.Conclusions:Symptomatic gallstone recurrence is the most common causes of salvage cholecystectomy after gallbladder-preserving cholelithotomy. Laparoscopic surgery procedure is still highly successful.