Objective:To analyze the iodine nutrition status of children and adolescents and influencing factors in Zhejiang Province, providing scientific basis for optimizing iodine deficiency disorders (IDD) prevention and control strategies.Methods:In June 2022, a multistage stratified sampling method was used to divide 16 counties (cities, districts, abbreviated as counties) in Zhejiang Province into three categories based on their geographical locations (average distance from the coastline): coastal areas (including Dinghai District, Jiaojiang District, Sanmen County, Cixi City and Lucheng District), sub-coastal areas (including Wuxing District, Haining City, Linping District, Fuyang District and Fenghua District), and inland areas(including Suichang County, Changshan County, Shengzhou City, Jindong District, Dongyang City and Yongjia County). One county was selected from each category, and one township (street) was selected from each county. Two administrative villages (neighborhood committees) were selected from each township (street). Ten households including all children and adolescents aged 6-17 in each household were selected from each administrative village (neighborhood committee). Demographic information and personal dietary characteristics were collected via questionnaires, while household salt and a random urine sample were tested for iodine level. Trend analysis was conducted using a χ 2trend test, and a multivariate logistic stepwise regression model was used to analyze the influencing factors of urinary iodine levels. Results:A total of 755 children and adolescents aged 6-17 were selected, including 387 males (51.26%) and 368 females (48.74%), with an age of (11.24 ± 3.32) years. There were 269 children and adolescents in coastal areas (35.63%) and 409 children and adolescents in urban areas (54.17%). A total of 755 household salt samples were collected, with a median salt iodine concentration of 21.80 mg/kg. These included 263 non-iodized salt samples, 38 unqualified iodized salt samples, and 454 qualified iodized salt samples. The coverage rate of iodized salt was 65.17% (492/755), and the consumption rate of qualified iodized salt was 60.13% (454/755). The distribution of salt iodine quality among children and adolescents in different geographical locations showed statistically significant differences (χ 2 = 111.95, P < 0.001), with the proportion of non-iodized salt gradually decreasing from coastal areas to inland areas (χ 2trend = 90.17, P < 0.001). A total of 755 urine samples were collected, with a median urinary iodine concentration of 186.60 μg/L. The proportions of urinary iodine < 100, 100-199, 200-299, and ≥300 μg/L were 16.95% (128/755), 37.62% (284/755), 24.37% (184/755), and 21.06% (159/755), respectively. The χ 2trend test revealed a nonlinear positive correlation between salt iodine level and urinary iodine level (χ 2regression = 21.98, P < 0.001; χ 2partial = 6.96, P < 0.001). The frequency distribution of urinary iodine in children and adolescents from different geographical locations and between urban and rural areas showed statistically significant differences (χ 2 = 29.63, 16.56, P < 0.001). Among them, the proportion of children and adolescents with urinary iodine < 100 μg/L gradually decreasing from coastal areas to inland areas (χ 2trend = 6.15, P = 0.013). The results of multivariate logistic regression analysis revealed that sub-coastal regions, inland regions, and urban-rural regions ( OR = 1.57, 1.53, 1.64, 95% CI: 1.11-2.24, 1.03-2.27, 1.17-2.32, P < 0.05) were significantly associated with urinary iodine levels in children and adolescents aged 6-17. Conclusions:In 2022, the iodine nutrition of children and adolescents in Zhejiang Province is generally suitable, but there is a risk of iodine deficiency among coastal children and adolescents. Geographic location and urban/rural areas are influencing factors on iodine nutrition status of children and adolescents in Zhejiang Province.

Objective:To analyze the iodine nutrition status of children and adolescents and influencing factors in Zhejiang Province, providing scientific basis for optimizing iodine deficiency disorders (IDD) prevention and control strategies.Methods:In June 2022, a multistage stratified sampling method was used to divide 16 counties (cities, districts, abbreviated as counties) in Zhejiang Province into three categories based on their geographical locations (average distance from the coastline): coastal areas (including Dinghai District, Jiaojiang District, Sanmen County, Cixi City and Lucheng District), sub-coastal areas (including Wuxing District, Haining City, Linping District, Fuyang District and Fenghua District), and inland areas(including Suichang County, Changshan County, Shengzhou City, Jindong District, Dongyang City and Yongjia County). One county was selected from each category, and one township (street) was selected from each county. Two administrative villages (neighborhood committees) were selected from each township (street). Ten households including all children and adolescents aged 6-17 in each household were selected from each administrative village (neighborhood committee). Demographic information and personal dietary characteristics were collected via questionnaires, while household salt and a random urine sample were tested for iodine level. Trend analysis was conducted using a χ 2trend test, and a multivariate logistic stepwise regression model was used to analyze the influencing factors of urinary iodine levels. Results:A total of 755 children and adolescents aged 6-17 were selected, including 387 males (51.26%) and 368 females (48.74%), with an age of (11.24 ± 3.32) years. There were 269 children and adolescents in coastal areas (35.63%) and 409 children and adolescents in urban areas (54.17%). A total of 755 household salt samples were collected, with a median salt iodine concentration of 21.80 mg/kg. These included 263 non-iodized salt samples, 38 unqualified iodized salt samples, and 454 qualified iodized salt samples. The coverage rate of iodized salt was 65.17% (492/755), and the consumption rate of qualified iodized salt was 60.13% (454/755). The distribution of salt iodine quality among children and adolescents in different geographical locations showed statistically significant differences (χ 2 = 111.95, P < 0.001), with the proportion of non-iodized salt gradually decreasing from coastal areas to inland areas (χ 2trend = 90.17, P < 0.001). A total of 755 urine samples were collected, with a median urinary iodine concentration of 186.60 μg/L. The proportions of urinary iodine < 100, 100-199, 200-299, and ≥300 μg/L were 16.95% (128/755), 37.62% (284/755), 24.37% (184/755), and 21.06% (159/755), respectively. The χ 2trend test revealed a nonlinear positive correlation between salt iodine level and urinary iodine level (χ 2regression = 21.98, P < 0.001; χ 2partial = 6.96, P < 0.001). The frequency distribution of urinary iodine in children and adolescents from different geographical locations and between urban and rural areas showed statistically significant differences (χ 2 = 29.63, 16.56, P < 0.001). Among them, the proportion of children and adolescents with urinary iodine < 100 μg/L gradually decreasing from coastal areas to inland areas (χ 2trend = 6.15, P = 0.013). The results of multivariate logistic regression analysis revealed that sub-coastal regions, inland regions, and urban-rural regions ( OR = 1.57, 1.53, 1.64, 95% CI: 1.11-2.24, 1.03-2.27, 1.17-2.32, P < 0.05) were significantly associated with urinary iodine levels in children and adolescents aged 6-17. Conclusions:In 2022, the iodine nutrition of children and adolescents in Zhejiang Province is generally suitable, but there is a risk of iodine deficiency among coastal children and adolescents. Geographic location and urban/rural areas are influencing factors on iodine nutrition status of children and adolescents in Zhejiang Province.

Objective:To analyze the liver histological characteristics and clinically related factors in inactive hepatitis B surface antigen (HBsAg) carriers (IHC), and also explore whether antiviral treatment is necessary for IHC, as defined in the 2022 version of the hepatitis B prevention and treatment guidelines.Methods:A multicenter, retrospective cohort study was conducted. Two hundred and thirty-one IHC cases who underwent liver biopsy histopathological examination in nine medical institutions, including Beijing Youan Hospital affiliated with Capital Medical University, from January 2018 to December 2023 were included. General informative data, clinical serological markers, and transient elastography (TE) examination results were collected. Patients were divided into a positive (148 cases) and a negative group (83 cases) according to the results of hepatitis B virus (HBV) DNA detection. The differences in liver pathological inflammatory activity (G) and liver fibrosis stage (S) were analyzed between the two groups to explore the correlation between liver tissue conditions and clinically related factors. Comparsions of normally distributed continwous data, skeukd continuous data, and categorical data between groups are performed using t tests, Mann-Whitney U tests and χ2 tests, respectively. Results:The age of 231 IHC cases was 43 (38, 51) years old, with 95.2% (220/231) aged ≥30 years, and males accounted for 64.9% (150/231). HBsAg and HBV DNA levels were 131.9 (20.8, 400.9) IU/mL and 94.0 (0, 448.5) IU/mL, respectively, of which 35.9% (83/231) were HBV DNA negative (<20 IU/mL). The remarkable proportions of G≥2, S≥2, and liver injury (G≥2 and/or S≥2) in liver tissue were 16.5% (38/231), 29% (67/231), and 35.9% (83/231), respectively. The S≥2 proportion was significantly higher in the HBV DNA-negative group than the positive group (42.2% vs. 21.6%, P<0.001), and it mainly occurred in the population cohort over 30 years old (44.9% vs. 31.0%, P=0.04). The liver stiffness measurement (LSM), aspartate transaminase to platelet ratio index (APRI), and platelet (PLT) were significantly higher in the S≥2 group than the S<2 group ( P<0.05). Conclusion:Clinicians can comprehensively evaluate the degree of liver fibrosis in IHC based on clinical factors such as age, PLT, APRI, and LSM, even if the liver histological results are lacking. The China 2022 version guidelines define that nearly half of IHC has histological indications for antiviral therapy, and liver biopsy and prompt treatment can be recommended.

Objective:To analyze the liver histological characteristics and clinically related factors in inactive hepatitis B surface antigen (HBsAg) carriers (IHC), and also explore whether antiviral treatment is necessary for IHC, as defined in the 2022 version of the hepatitis B prevention and treatment guidelines.Methods:A multicenter, retrospective cohort study was conducted. Two hundred and thirty-one IHC cases who underwent liver biopsy histopathological examination in nine medical institutions, including Beijing Youan Hospital affiliated with Capital Medical University, from January 2018 to December 2023 were included. General informative data, clinical serological markers, and transient elastography (TE) examination results were collected. Patients were divided into a positive (148 cases) and a negative group (83 cases) according to the results of hepatitis B virus (HBV) DNA detection. The differences in liver pathological inflammatory activity (G) and liver fibrosis stage (S) were analyzed between the two groups to explore the correlation between liver tissue conditions and clinically related factors. Comparsions of normally distributed continwous data, skeukd continuous data, and categorical data between groups are performed using t tests, Mann-Whitney U tests and χ2 tests, respectively. Results:The age of 231 IHC cases was 43 (38, 51) years old, with 95.2% (220/231) aged ≥30 years, and males accounted for 64.9% (150/231). HBsAg and HBV DNA levels were 131.9 (20.8, 400.9) IU/mL and 94.0 (0, 448.5) IU/mL, respectively, of which 35.9% (83/231) were HBV DNA negative (<20 IU/mL). The remarkable proportions of G≥2, S≥2, and liver injury (G≥2 and/or S≥2) in liver tissue were 16.5% (38/231), 29% (67/231), and 35.9% (83/231), respectively. The S≥2 proportion was significantly higher in the HBV DNA-negative group than the positive group (42.2% vs. 21.6%, P<0.001), and it mainly occurred in the population cohort over 30 years old (44.9% vs. 31.0%, P=0.04). The liver stiffness measurement (LSM), aspartate transaminase to platelet ratio index (APRI), and platelet (PLT) were significantly higher in the S≥2 group than the S<2 group ( P<0.05). Conclusion:Clinicians can comprehensively evaluate the degree of liver fibrosis in IHC based on clinical factors such as age, PLT, APRI, and LSM, even if the liver histological results are lacking. The China 2022 version guidelines define that nearly half of IHC has histological indications for antiviral therapy, and liver biopsy and prompt treatment can be recommended.

Background::Cardiovascular disease (CVD) has emerged as the leading cause of death from prostate cancer (PCa) in recent decades, bringing a great disease burden worldwide. Men with preexisting CVD have an increased risk for major adverse cardiovascular events when treated with androgen deprivation therapy (ADT). The present study aimed to explore the prevalence and risk evaluation of CVD among people with newly diagnosed PCa in China.Methods::Clinical data of newly diagnosed PCa patients were retrospectively collected from 34 centers in China from 2010 to 2022 through convenience sampling. CVD was defined as myocardial infarction, arrhythmia, heart failure, stroke, ischemic heart disease, and others. CVD risk was estimated by calculating Framingham risk scores (FRS). Patients were accordingly divided into low-, medium-, and high-risk groups. χ2 or Fisher’s exact test was used for comparison of categorical variables. Results::A total of 4253 patients were enrolled in the present study. A total of 27.0% (1147/4253) of patients had comorbid PCa and CVD, and 7.2% (307/4253) had two or more CVDs. The enrolled population was distributed in six regions of China, and approximately 71.0% (3019/4253) of patients lived in urban areas. With imaging and pathological evaluation, most PCa patients were diagnosed at an advanced stage, with 20.5% (871/4253) locally progressing and 20.5% (871/4253) showing metastasis. Most of them initiated prostatectomy (46.6%, 1983/4253) or regimens involving ADT therapy (45.7%, 1944/4253) for prostate cancer. In the present PCa cohort, 43.1% (1832/4253) of patients had hypertension, and half of them had poorly controlled blood pressure. With FRS stratification, as expected, a higher risk of CVD was related to aging and metabolic disturbance. However, we also found that patients with treatment involving ADT presented an originally higher risk of CVD than those without ADT. This was in accordance with clinical practice, i.e., aged patients or patients at advanced oncological stages were inclined to accept systematic integrative therapy instead of surgery. Among patients who underwent medical castration, only 4.0% (45/1118) received gonadotropin releasing hormone antagonists, in stark contrast to the grim situation of CVD prevalence and risk.Conclusions::PCa patients in China are diagnosed at an advanced stage. A heavy CVD burden was present at the initiation of treatment. Patients who accepted ADT-related therapy showed an original higher risk of CVD, but the awareness of cardiovascular protection was far from sufficient.

Objective To investigate the imaging manifestations and pathological basis of hepatic angiosarcoma(HAS).Methods The CT and MRI findings of 12 patients with HAS confirmed by pathology were analyzed retrospectively and compared with pathological findings.Results Based on morphological classification,the 12 cases of HAS were categorized into three types:massive patterns(n=3),mixed patterns of mass with nodules(n=2),and diffuse infiltration patterns(n=7).Hemorrhage was observed in 9 cases,and necrosis was present in all 12 cases.The massive patterns exhibited peripheral or nodular,patchy,annular,and cord-like enhancement patterns during the arterial phase,with increasing enhancement during the portal and delayed phases.The mixed patterns of mass with nodules demonstrated mild enhancement around the margin or in patchy and spotty structures during the arterial phase,progressing to expansive enhancement during the portal and delayed phases.Four of the seven diffuse infiltration patterns presented with mesh enhancement during the arterial phase,which expanded and became diffuse during the portal phase,accompanied by progressively enlarged enhancing nodules.In the delayed phase,the lesions were fused.The other three cases showed diffuse nodular enhancement during the arterial phase followed by increased enhancement during both portal phase and delayed phase.Regardless of subtype,focal fusion occurred during the delayed phase when multiple intrahepatic lesions were present,and the hemorrhagic and necrotic parts did not enhance.Conclusion The imaging characteristics of HAS include heterogeneous and progressive enhancement,often accompanied by hemorrhage,cystic change,and necrosis.

Objective:To investigate the effect of modified Retzius-sparing robot-assisted radical prostatectomy(RS-RARP) and " Sandwich" technique of total urethral reconstruction on the early postoperative urinary continence.Methods:The clinical data of 70 consecutive patients who underwent RS-RARP by the same operator at the Cancer Hospital of the Chinese Academy of Medical Sciences from October 2021 to November 2023 were retrospectively analyzed. The age was (65.1±8.0) years old, the body mass index (BMI) was (25.6±3.1) kg/m 2, the prostate volume was (31.9±18.1)ml and the preoperative prostate specific antigen(PSA) was (16.3±16.1)ng/ml. Four patients treated with neoadjuvant hormonal therapy before radical prostatectomy. Eleven patients underwent radical prostatectomy without prostate biopsy, while the remaining 59 patients underwent prostate biopsy. There were 10, 23, 14, 10 and 2 patients with Gleason scores of 6, 7, 8, 9 and 10 respectively.There were 48 patients with clinical stage cT 2 and 22 with cT 3. The surgical method was RS-RARP and "Sandwich" technique of total urethral reconstruction. The operation time, intraoperative blood loss, postoperative drain tube preservation time, postoperative hospitalization time, pathological staging and positive margin rate, and recovery of urinary continence immediately after postoperative catheter removal were recorded. Results:In this study, all 70 surgeries were successfully completed, with no cases converted to anterior approach radical surgery or open surgery, and no serious intraoperative complications such as post-shamus hemorrhage or ureteric/rectal injury. The median postoperative follow-up was 14(3, 28) months, and there were no cases of readmission for surgical complications. The duration of surgery was (89.8±19.5) min, and the blood loss volume was (53.7±25.2)ml. The duration of drainage tube after surgery was (6.7±1.8)d, the duration of hospitalization after surgery was (7.1±1.9)d, and the duration of urinary catheter was (8.9±3.0)d. Immediate urinary continence was achieved in 50 cases when the catheter was removed, and the rate of immediate urinary continence was 71.4%(50/70). Postoperative urinary continence rate was 81.4% (57/70) at 1 month after surgery, and 90.0% (63/70) at 3 months after surgery.At 1 month postoperatively, 94.3% (66/70) of patients had a PSA <0.2 ng/ml. At 3 months postoperatively, 98.5% (69/70) of patients had a PSA <0.2 ng/ml.Conclusions:The RS-RARP and "Sandwich" technique of total urethral reconstruction is technically feasible for patients with localized prostate cancer.The short-term follow-up effect of tumor control and urinary continence are satisfactory.

Objective:To investigate the effect of modified Retzius-sparing robot-assisted radical prostatectomy(RS-RARP) and " Sandwich" technique of total urethral reconstruction on the early postoperative urinary continence.Methods:The clinical data of 70 consecutive patients who underwent RS-RARP by the same operator at the Cancer Hospital of the Chinese Academy of Medical Sciences from October 2021 to November 2023 were retrospectively analyzed. The age was (65.1±8.0) years old, the body mass index (BMI) was (25.6±3.1) kg/m 2, the prostate volume was (31.9±18.1)ml and the preoperative prostate specific antigen(PSA) was (16.3±16.1)ng/ml. Four patients treated with neoadjuvant hormonal therapy before radical prostatectomy. Eleven patients underwent radical prostatectomy without prostate biopsy, while the remaining 59 patients underwent prostate biopsy. There were 10, 23, 14, 10 and 2 patients with Gleason scores of 6, 7, 8, 9 and 10 respectively.There were 48 patients with clinical stage cT 2 and 22 with cT 3. The surgical method was RS-RARP and "Sandwich" technique of total urethral reconstruction. The operation time, intraoperative blood loss, postoperative drain tube preservation time, postoperative hospitalization time, pathological staging and positive margin rate, and recovery of urinary continence immediately after postoperative catheter removal were recorded. Results:In this study, all 70 surgeries were successfully completed, with no cases converted to anterior approach radical surgery or open surgery, and no serious intraoperative complications such as post-shamus hemorrhage or ureteric/rectal injury. The median postoperative follow-up was 14(3, 28) months, and there were no cases of readmission for surgical complications. The duration of surgery was (89.8±19.5) min, and the blood loss volume was (53.7±25.2)ml. The duration of drainage tube after surgery was (6.7±1.8)d, the duration of hospitalization after surgery was (7.1±1.9)d, and the duration of urinary catheter was (8.9±3.0)d. Immediate urinary continence was achieved in 50 cases when the catheter was removed, and the rate of immediate urinary continence was 71.4%(50/70). Postoperative urinary continence rate was 81.4% (57/70) at 1 month after surgery, and 90.0% (63/70) at 3 months after surgery.At 1 month postoperatively, 94.3% (66/70) of patients had a PSA <0.2 ng/ml. At 3 months postoperatively, 98.5% (69/70) of patients had a PSA <0.2 ng/ml.Conclusions:The RS-RARP and "Sandwich" technique of total urethral reconstruction is technically feasible for patients with localized prostate cancer.The short-term follow-up effect of tumor control and urinary continence are satisfactory.

This article analyzes the limitations of traditional medical theory teaching, and proposes the strategies for cultivating medical students' autonomous learning ability, i.e., informatization-based flipped classroom, problem-oriented teaching, mind mapping training, semi-open book examination, exploitation of the clinical and scientific thinking, and practice activities of medical humanities. The strategies of "problem oriented teaching" and "mind mapping training" were integrated into the practice teaching of hematology. Compared with the traditional medical teaching mode, students' feedback after class showed that the teaching mode incorporating new cultivation strategies was more conducive to the improvement of students' self-learning ability ( P = 0.008), and their satisfaction with teaching mode, learning interest, and self-learning ability were all improved. Thus, the appropriate application of the above strategies can help improve students' autonomous learning ability and optimize the effect of medical theory teaching.

Objective:To investigate the clinical effect of CAG stimulating regimen for refractory adult early T cell precursor acute lymphoblastic leukemia (ETP-ALL) complicated with fusarium infection and the clinical features as well as antifungal strategy of cutaneous fusarium infection.Methods:The diagnosis and treatment of 1 adult patient diagnosed as ETP-ALL complicated with cutaneous fusarium infection in the First Hospital of Jilin University in September 2020 were retrospectively analyzed, and related literatures were reviewed.Results:VICP chemotherapy regimen showed no effectiveness in this patient who was presented with persistent agranulocytosis complicated with cutaneous fusariosis infection. After amphotericin B therapy for infection, he achieved the stable disease and successfully underwent CAG stimulating regimen salvage treatment. The minimal residual disease turned into negative after consolidation chemotherapy based on the myeloid regimen. Finally this patient survived from haploid allogeneic hematopoietic stem cell transplantation after consolidation chemotherapy and fusarium was under the control by using posaconazole as secondary prevention therapy.Conclusions:CAG stimulating regimen can be recommended as reinduction therapy for relapsed/refractory ETP-ALL. Sequential therapy of amphotericin B followed by posaconazole can be a useful antifungal strategy for fusarium infection.