Objective:To evaluate the long-term efficacy of liposuction combined with lymphaticovenous anastomosis (LVA) in the treatment of secondary lymphedema in lower extremity and analyse the factors that affect therapeutic outcomes.Methods:A retrospective analysis was conducted on the clinical data of 172 patients who were treated in the Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital for secondary lymphedema in lower extremity, between January 2019 and December 2021. The cohort comprised 170 females and 2 males, with a median age of 55 years. The primary diseases were: 99 patients with cervical cancer, 47 with endometrial cancer, 1 with penile cacer and 25 with other malignant tumours. All patients received liposuction to aspirate subcutaneous adipose tissue and LVA anastomosis of the inguinal lymphatic vessels with the great saphenous vein and its branches. Postoperative follow-ups were performed at outpatient clinic, telephone interview and questionnaire survey to acquire immediate status of the patients at the time. Following variables were included the follow-up: gender, age, body mass index (BMI), duration, hypertension, diabetes, the type of primary disease, history of surgery, history of lymph node dissection, history of radiotherapy or chemotherapy, extracellular water ratio (ECW%) in the affected limb, preoperative history of erysipelas, preoperative percentage difference in circumference of bilateral proximal toes, dorsal feet, ankles, distal third of legs, middle legs, proximal third of legs, knees, distal third of thighs, mid thighs, proximal third of thighs and groins. Additional parameters included duration of liposuction, intraoperative blood loss, adipose tissue content, number of lymphatic vessels anastomosed in LVA, postoperative daily standing time, postoperative history of erysipelas, and usage of compression garment. Univariate and multivariate analyses were performed using SPSS 26.0 software, with P <0.05 considered statistically significant. Results:A complete remission was defined as less than 10.0% in the percentage of bilateral limb volume difference during follow-up. There were 112 patients with complete remission. After excluded confounding factors through univariate analysis, multivariate analysis had revealed following independent risk factors: ECW% of affected limb ( P<0.01), postoperative standing duration >6 hours/day ( P=0.021), postoperative history of erysipelas ( P=0.016), regular use of compression garment ( P=0.013), and percentage difference of circumference at bilateral proximal toes ( P=0.038). Among the remaining 60 patients, 32 patients achieved effective remission which was defined as less than 20.0% in the swelling volume expansion ratio. Conclusion:Liposuction combined with LVA can relieve secondary lymphedema of lower extremity for majority of patients. ECW% of affected limb, postoperative standing duration >6 hours/day, postoperative history of erysipelas, irregular use of elastic socks, and percentage difference in circumference at bilateral proximal toes are the independent risk factors that affect the prognosis.

Objective:To detect the levels of sex hormones and insulin in follicular fluid(FF)and the expression level of phosphatase and tensin homolog deleted on chromosome ten(PTEN)in granulosa cells in the infertile patients with polycystic ovary syndrome(PCOS),and to preliminarily explain the correlations between the insulin level and the expression level of PTEN mRNA.Methods:Seventy infertile patients were selected as the subjects and divided into PCOS group and control group(tubal obstruction or infertility due to male factors)according to infertility factors.All patients received in vitro fertilization-embryo transfer(IVF-ET)treatment.FF and ovarian granulosa cells were collected on the day of ovulation.The expression levels of PTEN mRNA in ovarian granulosa cells of the patients in two groups were detected by real-time fluorescence quantitative PCR(RT-qPCR)method.The levels of sex hormone and insulin in FF were measured by electrochemiluminescence.The correlations of the PTEN mRNA expression level in ovarian granulosa cells and testosterone(T)in FF with the level of insulin in FF were analyzed by Spearman correlation analysis method.Results:There were no significant differences in age,infertility years,body mass index(BMI),basic sex hormone,total dose of gonadotropin(Gn)and days of ovulation induction in two groups(P＞0.05).Compared with control group,the anti-Mullerian hormone(AMH)and antral follicle counting(AFC)of the patients in PCOS group were significantly increased(P＜0.05).The RT-qPCR results showed that the PTEN mRNA expression level in ovarian granulosa cells of the patients in the PCOS group was higher than that in control group(P＜0.001).The electrochemiluminescence results showed that the levels of T and insulin in FF of the patients in PCOS group were higher than those in control group(P＜0.05),whereas the estrogen and progesterone levels were lower than those in control group(P＜0.05).The Spearman correlation analysis showed that that T level in FF was positively correlated with the insulin level of the patients in PCOS group(r=0.577,P＜0.001),and the PTEN mRNA expression level in ovarian granulosa cells was positively correlated with the insulin levels in FF(r=0.616,P＜0.001);in control group,there was no correlation between T level and insulin level in FF(r=0.266,P=0.123),and there was no correlation between the expression level of PTEN mRNA in granulosa cells and the insulin level in FF in control group(r=-0.214,P=0.216).Conclusion:The high expression of PTEN in granulosa cells of the infertile patients with PCOS may be related to the local hyperinsulin level in the ovary,and PTEN participates in the occurrence and development of PCOS.

Objective:This study aims to evaluate the nasal structural and electrophysiological features of patients with postoperative olfactory dysfunction following aesthetic rhinoplasty.Methods:We retrospectively analyzed the clinical features of 30 outpatients (females, aged 33±6 years) from Beijing Anzhen Hospital and China-Japan Friendship Hospital between 2014 and 2023, who complained of olfactory dysfunction following aesthetic rhinoplasty. The control group was 30 healthy females aged 32±9 years. Psychophysical olfactory test (Sniffin′ Sticks, SS), olfactory and trigeminal event-related potentials (oERPs and tERPs), and acoustic rhinometry were used for evaluating the olfactory function and nasal structure in patients and healthy controls. SPSS 17.0 software was used to compare the difference in olfactory function and nasal structure between the two groups and to analyze the factors related postoperative olfactory dysfunction.Results:There was a significant difference in the scores on psychophysical olfactory test between the patients and controls (10.78±3.90 vs. 33.66±2.42, t=-23.35, P<0.001). ERPs could be evoked in all patients and controls. Patients showed higher amplitudes of N 1 waves in both oERPs and tERPs than controls ( P<0.05 for all), but no differences in the latencies of N 1 and P 2 waves or in the amplitudes of P 2 waves were observed between the two groups ( P>0.05 for all). There was no difference in nasal structure between the two groups ( P>0.05). However, after nasal decongestant, mucosal congestion in the cross-sectional area (CSA) from the nostril to 6 cm level was found more significantly in patients than controls (nasal congestion index 40.00% vs. 1.00%, t=2.09, P=0.047). Better olfactory function was associated with increasing nasal volumes, increasing nasal threshold and anterior nasal turbinate plane CSA( P<0.05 for all). Conclusion:The important factor related to olfactory dysfunction following aesthetic rhinoplasty may be attributed to local mucosal congestion, rather than nasal structural alteration or neurophysiologic deficits in the olfactory pathway.

Functional dyspepsia(FD)is a prevalent functional gastrointestinal disorder among the elderly, characterized by an unclear pathogenesis and significant challenges in diagnosis and treatment.The emergence of FD in older adults is closely linked to factors such as gastrointestinal motility disorders, visceral hypersensitivity, dysregulation of the gut-brain axis, and psychological influences.Recent years have witnessed substantial advancements in the understanding of the pathophysiological mechanisms underlying FD, with emerging evidence indicating that low-grade duodenal inflammation and dysbiosis of gut microbiota may play pivotal roles in its onset and progression.This review aims to synthesize the latest domestic and international research regarding the epidemiological characteristics of FD in the elderly, its pathogenesis in the context of aging, and contemporary approaches to diagnosis and treatment.

Functional dyspepsia(FD)is a prevalent functional gastrointestinal disorder among the elderly, characterized by an unclear pathogenesis and significant challenges in diagnosis and treatment.The emergence of FD in older adults is closely linked to factors such as gastrointestinal motility disorders, visceral hypersensitivity, dysregulation of the gut-brain axis, and psychological influences.Recent years have witnessed substantial advancements in the understanding of the pathophysiological mechanisms underlying FD, with emerging evidence indicating that low-grade duodenal inflammation and dysbiosis of gut microbiota may play pivotal roles in its onset and progression.This review aims to synthesize the latest domestic and international research regarding the epidemiological characteristics of FD in the elderly, its pathogenesis in the context of aging, and contemporary approaches to diagnosis and treatment.

Objective:To evaluate the long-term efficacy of liposuction combined with lymphaticovenous anastomosis (LVA) in the treatment of secondary lymphedema in lower extremity and analyse the factors that affect therapeutic outcomes.Methods:A retrospective analysis was conducted on the clinical data of 172 patients who were treated in the Department of Lymphatic Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital for secondary lymphedema in lower extremity, between January 2019 and December 2021. The cohort comprised 170 females and 2 males, with a median age of 55 years. The primary diseases were: 99 patients with cervical cancer, 47 with endometrial cancer, 1 with penile cacer and 25 with other malignant tumours. All patients received liposuction to aspirate subcutaneous adipose tissue and LVA anastomosis of the inguinal lymphatic vessels with the great saphenous vein and its branches. Postoperative follow-ups were performed at outpatient clinic, telephone interview and questionnaire survey to acquire immediate status of the patients at the time. Following variables were included the follow-up: gender, age, body mass index (BMI), duration, hypertension, diabetes, the type of primary disease, history of surgery, history of lymph node dissection, history of radiotherapy or chemotherapy, extracellular water ratio (ECW%) in the affected limb, preoperative history of erysipelas, preoperative percentage difference in circumference of bilateral proximal toes, dorsal feet, ankles, distal third of legs, middle legs, proximal third of legs, knees, distal third of thighs, mid thighs, proximal third of thighs and groins. Additional parameters included duration of liposuction, intraoperative blood loss, adipose tissue content, number of lymphatic vessels anastomosed in LVA, postoperative daily standing time, postoperative history of erysipelas, and usage of compression garment. Univariate and multivariate analyses were performed using SPSS 26.0 software, with P <0.05 considered statistically significant. Results:A complete remission was defined as less than 10.0% in the percentage of bilateral limb volume difference during follow-up. There were 112 patients with complete remission. After excluded confounding factors through univariate analysis, multivariate analysis had revealed following independent risk factors: ECW% of affected limb ( P<0.01), postoperative standing duration >6 hours/day ( P=0.021), postoperative history of erysipelas ( P=0.016), regular use of compression garment ( P=0.013), and percentage difference of circumference at bilateral proximal toes ( P=0.038). Among the remaining 60 patients, 32 patients achieved effective remission which was defined as less than 20.0% in the swelling volume expansion ratio. Conclusion:Liposuction combined with LVA can relieve secondary lymphedema of lower extremity for majority of patients. ECW% of affected limb, postoperative standing duration >6 hours/day, postoperative history of erysipelas, irregular use of elastic socks, and percentage difference in circumference at bilateral proximal toes are the independent risk factors that affect the prognosis.

Objective:This study aims to evaluate the nasal structural and electrophysiological features of patients with postoperative olfactory dysfunction following aesthetic rhinoplasty.Methods:We retrospectively analyzed the clinical features of 30 outpatients (females, aged 33±6 years) from Beijing Anzhen Hospital and China-Japan Friendship Hospital between 2014 and 2023, who complained of olfactory dysfunction following aesthetic rhinoplasty. The control group was 30 healthy females aged 32±9 years. Psychophysical olfactory test (Sniffin′ Sticks, SS), olfactory and trigeminal event-related potentials (oERPs and tERPs), and acoustic rhinometry were used for evaluating the olfactory function and nasal structure in patients and healthy controls. SPSS 17.0 software was used to compare the difference in olfactory function and nasal structure between the two groups and to analyze the factors related postoperative olfactory dysfunction.Results:There was a significant difference in the scores on psychophysical olfactory test between the patients and controls (10.78±3.90 vs. 33.66±2.42, t=-23.35, P<0.001). ERPs could be evoked in all patients and controls. Patients showed higher amplitudes of N 1 waves in both oERPs and tERPs than controls ( P<0.05 for all), but no differences in the latencies of N 1 and P 2 waves or in the amplitudes of P 2 waves were observed between the two groups ( P>0.05 for all). There was no difference in nasal structure between the two groups ( P>0.05). However, after nasal decongestant, mucosal congestion in the cross-sectional area (CSA) from the nostril to 6 cm level was found more significantly in patients than controls (nasal congestion index 40.00% vs. 1.00%, t=2.09, P=0.047). Better olfactory function was associated with increasing nasal volumes, increasing nasal threshold and anterior nasal turbinate plane CSA( P<0.05 for all). Conclusion:The important factor related to olfactory dysfunction following aesthetic rhinoplasty may be attributed to local mucosal congestion, rather than nasal structural alteration or neurophysiologic deficits in the olfactory pathway.

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.

This article introduces the establishment of purchase-management separation system in a tertiary comprehen-sive hospital in Guangzhou as a case study.To realize high-quality development,this hospital standardized its procurement man-agement,strengthened prevention and control of risks in integrity,and implemented procurement project performance.By doing these,the hospital proposed a specific plan from multi-facets such as establishment of internal management system,separation of duty and right,and risk prevention and control.These measures clarified a links of whole procurement process,specified the du-ties,improved the communication between procurement and management.Consequently,procurement performance and efficiency were notably improved.Their achievements provide practical references for publish hospitals to establish purchase-management separation systems,thereby promoting high-quality development of public hospital.

Objective:To investigate the surgical treatment effect and prognostic factors of hilar cholangiocarcinoma.Methods:This is an ambispective cohort study. From August 2005 to December 2022,data of 510 patients who diagnosed with hilar cholangiocarcinoma and underwent surgical resection at the Hepatobiliary Center of the First Affiliated Hospital of Nanjing Medical University were retrospectively collected. In the cohort,there were 324 males and 186 females,with an age of ( M (IQR)) 63(13)years (range:25 to 85 years). The liver function at admission was Child-Pugh A (343 cases,67.3%) and Child-Pugh B (167 cases,32.7%). Three hundred and seventy-two(72.9%) patients had jaundice symptoms and the median total bilirubin was 126.3(197.6) μmol/L(range: 5.4 to 722.8 μmol/L) at admission. Two hundred and fourty-seven cases (48.4%) were treated with percutaneous transhepatic cholangial drainage or endoscopic nasobiliary drainage before operation. The median bilirubin level in the drainage group decreased from 186.4 μmol/L to 85.5 μmol/L before operation. Multivariate Logistic regression was used to identify the influencing factors for R0 resection,and Cox regression was used to construct multivariate prediction models for overall survival(OS) and disease-free survival(DFS). Results:Among 510 patients who underwent surgical resection,Bismuth-Corlett type Ⅲ-Ⅳ patients accounted for 71.8%,among which 86.1% (315/366) underwent hemi-hepatectomy,while 81.9% (118/144) underwent extrahepatic biliary duct resection alone in Bismuch-Corlett type Ⅰ-Ⅱ patients. The median OS time was 22.8 months, and the OS rates at 1-,3-,5-and 10-year were 72.2%,35.6%,24.8% and 11.0%,respectively. The median DFS time was 15.2 months,and the DFS rates was 66.0%,32.4%,20.9% and 11.0%,respectively. The R0 resection rate was 64.5% (329/510), and the OS rates of patients with R0 resection at 1-,3-,5-and 10-year were 82.5%, 48.6%, 34.4%, 15.2%,respectively. The morbidity of Clavien-Dindo grade Ⅲ-Ⅴ complications was 26.1%(133/510) and the 30-day mortality was 4.3% (22/510). Multivariate Logistic regression indicated that Bismuth-Corlett type Ⅰ-Ⅲ ( P=0.009), hemi-hepatectomy and extended resection ( P=0.001),T1 and T2 patients without vascular invasion (T2 vs. T1: OR=1.43 (0.61-3.35), P=0.413;T3 vs. T1: OR=2.57 (1.03-6.41), P=0.010;T4 vs. T1, OR=3.77 (1.37-10.38), P<0.01) were more likely to obtain R0 resection. Preoperative bilirubin,Child-Pugh grade,tumor size,surgical margin,T stage,N stage,nerve infiltration and Edmondson grade were independent prognostic factors for OS and DFS of hilar cholangiocarcinoma patients without distant metastasis. Conclusions:Radical surgical resection is necessary to prolong the long-term survival of hilar cholangiocarcinoma patients. Hemi-hepatectomy and extended resection,regional lymph node dissection and combined vascular resection if necessary,can improve R0 resection rate.