Objective To analyze the death status and main causes of death among children under 5 years old in Changsha from 2016 to 2021, and to provide a scientific basis for formulating preventive measures for children's health care. Methods The data of 1 761 deaths of children under 5 years old in Changsha City from 2016 to 2021 were collected, and the mortality trend, the order of causes of death and the utilization of pre-death medical care services were retrospectively analyzed. Results The 7-day neonatal mortality, 28-day neonatal mortality, 0-1-year-old neonatal mortality, and the mortality rate of children under 5 years old (U5MR) in Changsha City from 2016 to 2021 were 0.76‰, 1.28‰, 2.41‰, and 3.86‰, respectively. All the mortality rates showed a decreasing trend (P<0.05). U5MR in males was significantly higher than that in females (P<0.05), and U5MR in rural areas was significantly higher than that in urban areas (P<0.05). The top five causes of U5MR were drowning, premature delivery or low birth weight, pneumonia, other congenital anomalies, and accidental asphyxia, respectively. The death places of children under 5 years old were mainly medical and health institutions, and 81.72% of them were treated in hospitals before death. Conclusion From 2016 to 2021, the mortality rate of children under the age of 5 in Changsha City has gradually decreased. Preventing congenital malformations, reducing preterm birth or low birth weight, improving the treatment level of pneumonia, and preventing accidents such as drowning and accidental suffocation are the key to reducing the mortality rate of children under 5 years old.

Objective To discuss the application of the"rotating guidewire and correcting the filter recovery hook direction technique"("rotation-correction loop technique"for short),a technique invented by the authors in clinical practice,in the retrieval of complex inferior vena cava filter(IVCF),and to discuss its technical skills and advantages.Methods The clinical data of 417 patients carrying an IVCF,who were admitted to the Department of Vascular Surgery of Second Hospital of Shanxi Medical University of China to retrieve IVCF between January 2022 and December 2022,were retrospectively analyzed.Taking the time spent on the retrieval of IVCF and the intraoperative radiation dose as the evaluation indicators,the advantages and disadvantages of the standard filter retrieval technique,the"rotation-correction loop technique"and the other loop-assisted techniques were compared.Results Both the intraoperative radiation dose and the time spent on the retrieval of IVCF using"rotation-correction loop technique"were remarkably lower than those of other loop-assisted techniques(P＜0.000 1).Conclusion For the retrieval of complex IVCF,especially for the IVCF which is heavily tilted and/or its recovered hook is attached to the vascular wall,the use of"rotation-correction loop technique"can shorten the time spent on the the retrieval of IVCF and reduce the intraoperative radiation dose.This technique carries high safety and practicability,the device is simple and it can be manipulated by single physician,which is conducive to clinical application and promotion.(J Intervent Radiol,2024,33:289-294)

Objective:To investigate the impact of daily step count on glycemic outcomes in community residents with impaired glucose tolerance (IGT).Methods:This was a prospective cohort study, in October 2018, 204 residents who met the criteria of IGT were recruited in the Shijingshan District in Beijing. The subjects were tested for fasting blood glucose, oral glucose tolerance test 2-hour blood glucose (2hBG), glycated hemoglobin A 1c (HbA 1c), lipid profile, liver and kidney function, as well as measurements of height, weight and waist circumference. A dedicated mobile application was used to deliver prediabetes health knowledge monthly. Online guidance was provided to answer questions and daily step count was collected using the application. Three years later, a follow-up was conducted to assess the participants′ glycemic outcomes and other indexes, and a total of 142 participants completed the follow-up review. According to daily step count, the subjects were categorized into high step count group (42 cases,>7 000 steps daily), moderate step count group (54 cases, 5 000-7 000 steps daily), and low step count group (46 cases,<5 000 steps daily). Subjects were categorized into diabetes group (30 cases), prediabetes group (77 cases) and normal glucose tolerance group (35 cases) with glycemic outcomes. Independent sample t test was used to compare the differences in blood glucose, blood lipids, and step counts between the two groups. Kruskal-Wallis H test or one-way ANOVA was used to compare the differences in blood glucose, blood lipids, and step counts between multiple groups. The χ2 test was used to compare the differences in glycemic outcomes between multiple groups. Multivariate logistic regression analysis was used to assess the impact of daily step counts and body mass index on glycemic outcomes. Linear regression analysis was used to evaluate the relationship between daily step counts and 2 h BG. Results:A total of 142 participants completed the 3-year follow-up, including 43 males and 99 females, with a mean age of (60.15±5.67) years. At baseline, males had significantly higher body mass index, waist circumference, and fasting blood glucose when compared to those in females [(26.97±2.43) vs (24.89±2.93) kg/m 2, (92.68±7.75) vs (83.83±8.60) cm, (5.83±0.61) vs (5.62±0.52) mmol/L], the total cholesterol and HDL-C were also significantly lower in males than those in females [(5.10±1.16) vs (5.55±0.95) mmol/L, (1.35±0.34) vs (1.56±0.35) mmol/L] (all P<0.05). After 3-year follow-up, 21.1% (30/142) of IGT participants progressed to diabetes, with an annual conversion rate of approximately 7%. The normal glucose tolerance group showed significantly higher daily step counts when compared with the prediabetes and diabetes groups [(7 886±2 867) vs (5 981±2 655) vs (4 117±2 674) steps] ( H=31.778, P<0.001). Individuals with higher daily step counts exhibited lower body mass index, 2 h BG, and HbA 1c level when compared with those in the ones with moderate and low step counts [(24.26±3.09) vs (25.44±3.38) vs (26.26±3.59) kg/m 2, (7.50±1.71) vs (9.15±3.30) vs (11.19±3.84) mmol/L, 5.97%±0.46% vs 6.14%±0.99% vs 6.40%±0.96%] (all P<0.05). Higher step count was positively correlated with the reversal of prediabetes to normal blood glucose levels (moderate step count, OR=0.297, 95% CI: 0.109-0.804; low step count, OR=0.055, 95% CI: 0.010-0.287), lower daily step count correlated positively with prediabetes progressing to diabetes ( OR=4.857, 95% CI: 1.140-20.689) (all P<0.05). For every additional 1 000 steps per day, the 2 h BG decreased by 0.5 mmol/L. Conclusion:As daily step count increases, the glucose metabolism improves in IGT community residents. Higher daily step count is associated with reversal of IGT to normal glucose tolerance, while lower daily step count may be associated with the progression of IGT to diabetes.

This article reports a case of acute kidney injury (AKI) following near drowning with reduced urine output as the main manifestation. The patient was a 37-year-old middle-aged man. His renal function deteriorated sharply after accidentally falling into the water, and renal pathology showed acute tubular injury. After hemodialysis treatment, urine output increased significantly, and renal function and proteinuria improved significantly. AKI following near drowning lacks typical clinical manifestations and is prone to delayed diagnosis and treatment. The patients with a history of near drowning should be followed up to determine whether they are complicated by AKI.

Osteoarthritis(OA)is the most common degenerative disease in clinical practice.Joint pain is the main manifestation of OA,and in severe cases,it can lead to joint deformity.The main pathological changes include destruction of articular cartilage,synovitis,thickening of subchondral bone,bone redundancy,degeneration of articular ligaments,and enlargement of articular periosteum.Clinicopathological changes and pain degrees in OA patients vary from person to person,and treatment options vary from person to person.Clinically,non-steroidal anti-inflammatory drugs are used to treat the pain of OA patients now,but the effect is not ideal,and long-term use of these drugs will bring obvious toxic and side effects.Traditional Chinese medicine obtains good results in relieving the pain of OA patients.Therefore,this paper reviews the research on traditional Chinese medicine treatment and pain mechanisms of OA,with a view to providing ideas and references for clinical relief of pain in OA patients.

Objective To investigate the correlation of circular RNA-ZNF532(cZNF532)expression level with pancreatic islet cell function and microvascular complications in patients with type 2 diabetes mellitus(T2DM).Methods A total of 198 T2DM patients admitted to the Department of Endocrinology,Nanyang Central Hospital from June 2018 to June 2022 were selected as the research subjects(observation group),and 50 healthy volunteers who underwent physical examination in the hospital during the same period were selected as the control group.The expression level of cZNF532 in peripheral blood mononuclear cells was detected by real-time fluorescence quantitative polymerase chain reaction,the fasting blood glucose(FPG),insulin(FINS),glycosylated hemoglobin(HbA1c),homeostatic model assessment of insulin resistance(HOMA-IR)and homeostasis model assessment of β-cell function(HOMA-β)of the subjects were detected by the fully automated biochemical analyzer,and the correlation between cZNF532 expression level and pancreatic islet cell function in T2DM patients was analyzed by Pearson correlation analysis.The clinical data of T2DM patients were collected,and they were divided into microvascular complication group(n=120)and non-microvascular complication group(n=78)according to whether microvascular complications occurred during treatment.Multivariate logistic regression analysis was used to identify the risk factors for microvascular complications in patients with T2DM,and Spearman correlation analysis was used to explore the correlation between the expression level of cZNF532 and microvascular complications in patients with T2DM.Results Compared with the control group,the levels of cZNF532,FINS,HbA1c and HOMA-IR were significantly higher and HOMA-β was significantly lower in the observation group(P＜0.05).The results of Pearson correlation analysis showed that the expression level of cZNF532 in T2DM patients was positively correlated with the FINS,HbA1c and HOMA-IR(r=0.324,0.357,0.410;P＜0.05);and negatively correlated with HOMA-β(r=-0.389,P＜0.05).There was no significant difference in gender,age,course of disease,number of patients with hypertension,high-density lipoprotein cholesterol(HDL-C),total cholesterol(TC)and triglyceride(TG)levels between the microvascular complication group and the non-microvascular complication group(P＞0.05);compared with the non-microvascular complication group,the expression levels of LDL-C,FPG and cZNF532 in the microvascular complication group were significantly higher(P＜0.05).Multivariate logistic regression analysis showed that LDL-C,FPG and cZNF532 were independent risk factors for microvascular complications in T2DM patients.The results of Spearman correlation analysis showed that the expression level of cZNF532 was positively correlated with the occurrence of microvascular complications in T2DM patients(r=0.681,P＜0.05).Conclusion cZNF532 is overexpressed in T2DM patients,which is associated with pancreatic islet cell function and microvascular complications in T2DM patients.

BACKGROUND: This study aimed to develop a comprehensive instrument for evaluating and ranking clinical practice guidelines, named Scientific, Transparent and Applicable Rankings tool (STAR), and test its reliability, validity, and usability. METHODS: This study set up a multidisciplinary working group including guideline methodologists, statisticians, journal editors, clinicians, and other experts. Scoping review, Delphi methods, and hierarchical analysis were used to develop the STAR tool. We evaluated the instrument's intrinsic and interrater reliability, content and criterion validity, and usability. RESULTS: STAR contained 39 items grouped into 11 domains. The mean intrinsic reliability of the domains, indicated by Cronbach's α coefficient, was 0.588 (95% confidence interval [CI]: 0.414, 0.762). Interrater reliability as assessed with Cohen's kappa coefficient was 0.774 (95% CI: 0.740, 0.807) for methodological evaluators and 0.618 (95% CI: 0.587, 0.648) for clinical evaluators. The overall content validity index was 0.905. Pearson's r correlation for criterion validity was 0.885 (95% CI: 0.804, 0.932). The mean usability score of the items was 4.6 and the median time spent to evaluate each guideline was 20 min. CONCLUSION The instrument performed well in terms of reliability, validity, and efficiency, and can be used for comprehensively evaluating and ranking guidelines.
Reproducibility of Results ; Surveys and Questionnaires ; Practice Guidelines as Topic ; Humans

Objective:To construct a value evaluation framework for high-value medical consumables,providing a guidance for medical insurance access and hospital access management scenarios in China.Methods:It conducted literature review,qualitative in-terviews and quantitative surveys.A total of 12 experts were invited for qualitative interviews,while 100 experts from four fields of health technology assessment,medical insurance,hospital management,and clinical practice participated in the quantitative survey.Through those process,it generated the composition of the value framework and the scoring of each item.Differences in ratings be-tween different scenarios and experts were analyzed through chi-square tests.The recommendation level for each item was graded.Re-sults:A comprehensive value evaluation framework for high-value medical consumables was established,which included 6 core dimen-sions,comprised 16 items for secondary dimensions and 50 items for tertiary dimensions.It showed significant differences between the medical insurance access and hospital access scenarios,as well as among different fields of experts in the same scenario.furthermore,grading the items in two scenarios.The medical insurance access scenario had 8 highly recommended items,and the hospital access scenario had 24 highly recommended items.Conclusion:Value evaluation should encourage multi-dimensional assessments and inter-disciplinary participation,continually improving the management of high-value medical consumables in medical insurance and hospital access.

Objective:To evaluate the structural features, stability and postoperative effect of integrated framework, 1+ 1 framework, 2+ 1 framework, 4+ 1 framework, and Y-shaped nasal framework.Methods:A retrospective analysis was performed based on the clinical data of patients underwent in Department of Plastic and Aesthetic (Burn) Surgery, the Second Xiangya Hospital, Central South University from February 2019 to November 2020. According to rhinoplasty framework, the patients were divided into integrated framework group, 1+ 1 framework group, 2+ 1 framework group, 4+ 1 framework group, and Y-shaped framework group. Based on the principle of plane photography, the stability of the nasal framework was evaluated by measuring the nasal tip projection and the nasolabial angle 1 month after surgery, and 12 months after surgery. The satisfaction of patients and the incidence of postoperative complications were collected. The difference in nasolabial angle and nasal tip projection data of postoperation 1 month and postoperative 12 months among each group were analyzed by one-way analysis vaniance or Kruskal-Waliis H test.Bonferroni test or Nemenyi test was used for pairwise comparison between groups. P< 0.05 was considered statistically significant. Results:A total of 201 patients (18 males and 183 females, aged 18-46 years, average aged 26.6±5.9 years)were included in this study and followed up for 12-21 months. There were 45 patients in the integrated framework group, 45 patients in the 1+ 1 framework group, 34 patients in the 2+ 1 framework group, 35 patients in the 4+ 1 framework group, and 42 patients in the Y-shaped framework group. Four patients with Y-shaped framework had significant nasal tip supination 12 months after surgery. Among the patients with 1+ 1 framework, 1 patient showed slight columella distortion 6 months after surgery, and 3 patients showed significant nasal tip subrotation 12 months after surgery. One patient in 2+ 1 framework group developed nasal infection 92 days after surgery. No complications were found in other groups during follow-up. In terms of nasal tip projection during postoperative follow-up, the median difference of nasal tip projection between 12 months and 1 month after surgery in 2+ 1 framework group, integrated framework group, 1+ 1 framework group, and 4+ 1 framework group, and Y-shaped framework group was -0.08 cm, -0.09 cm, -0.20 cm, -0.10 cm and -0.17 cm, respectively. The difference of nasal tip projection among the five groups was statistically significant ( P<0.01). The difference between 2+ 1 framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant( P<0.05). The difference between 4+ 1 framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant ( P<0.05). The difference between integrated nasal framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant ( P<0.05). The difference between Y-shaped framework group and 1+ 1 framework group was statistically significant ( P<0.05). In terms of nasolabial angle during postoperative follow-up, the median difference of nasolabial angle between 12 months and 1 month after surgery in 2+ 1 framework group, integrated framework group, 1+ 1 framework group, and 4+ 1 framework group, and Y-shaped framework group was -4.20°, -3.80°, -6.50°, -4.10° and -6.35°, respectively. The difference of nasolabial angle among the five groups was statistically significant ( P<0.01). The difference between 2+ 1 framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant( P<0.05). The difference between 4+ 1 framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant ( P<0.05). The difference between integrated nasal framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant ( P<0.05). Patient satisfaction evaluation, 2+ 1 framework group had the highest satisfaction(34/34, 100.00%), followed by 4+ 1 framework group (34/35, 97.14%), integrated framework group(42/45, 93.33%), Y-shaped framework group(36/42, 85.71%), 1+ 1 framework group(37/45, 82.22%). Conclusion:The changes of nasolabial angle and nasal tip projection in 2+ 1 framework, integrated framework, and 4+ 1 framework were smaller than those in Y-shaped framework and 1+ 1 framework.2+ 1 framework was convenient and had good postoperative stability and high patient satisfaction.

Objective:To evaluate the structural features, stability and postoperative effect of integrated framework, 1+ 1 framework, 2+ 1 framework, 4+ 1 framework, and Y-shaped nasal framework.Methods:A retrospective analysis was performed based on the clinical data of patients underwent in Department of Plastic and Aesthetic (Burn) Surgery, the Second Xiangya Hospital, Central South University from February 2019 to November 2020. According to rhinoplasty framework, the patients were divided into integrated framework group, 1+ 1 framework group, 2+ 1 framework group, 4+ 1 framework group, and Y-shaped framework group. Based on the principle of plane photography, the stability of the nasal framework was evaluated by measuring the nasal tip projection and the nasolabial angle 1 month after surgery, and 12 months after surgery. The satisfaction of patients and the incidence of postoperative complications were collected. The difference in nasolabial angle and nasal tip projection data of postoperation 1 month and postoperative 12 months among each group were analyzed by one-way analysis vaniance or Kruskal-Waliis H test.Bonferroni test or Nemenyi test was used for pairwise comparison between groups. P< 0.05 was considered statistically significant. Results:A total of 201 patients (18 males and 183 females, aged 18-46 years, average aged 26.6±5.9 years)were included in this study and followed up for 12-21 months. There were 45 patients in the integrated framework group, 45 patients in the 1+ 1 framework group, 34 patients in the 2+ 1 framework group, 35 patients in the 4+ 1 framework group, and 42 patients in the Y-shaped framework group. Four patients with Y-shaped framework had significant nasal tip supination 12 months after surgery. Among the patients with 1+ 1 framework, 1 patient showed slight columella distortion 6 months after surgery, and 3 patients showed significant nasal tip subrotation 12 months after surgery. One patient in 2+ 1 framework group developed nasal infection 92 days after surgery. No complications were found in other groups during follow-up. In terms of nasal tip projection during postoperative follow-up, the median difference of nasal tip projection between 12 months and 1 month after surgery in 2+ 1 framework group, integrated framework group, 1+ 1 framework group, and 4+ 1 framework group, and Y-shaped framework group was -0.08 cm, -0.09 cm, -0.20 cm, -0.10 cm and -0.17 cm, respectively. The difference of nasal tip projection among the five groups was statistically significant ( P<0.01). The difference between 2+ 1 framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant( P<0.05). The difference between 4+ 1 framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant ( P<0.05). The difference between integrated nasal framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant ( P<0.05). The difference between Y-shaped framework group and 1+ 1 framework group was statistically significant ( P<0.05). In terms of nasolabial angle during postoperative follow-up, the median difference of nasolabial angle between 12 months and 1 month after surgery in 2+ 1 framework group, integrated framework group, 1+ 1 framework group, and 4+ 1 framework group, and Y-shaped framework group was -4.20°, -3.80°, -6.50°, -4.10° and -6.35°, respectively. The difference of nasolabial angle among the five groups was statistically significant ( P<0.01). The difference between 2+ 1 framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant( P<0.05). The difference between 4+ 1 framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant ( P<0.05). The difference between integrated nasal framework group and 1+ 1 framework group or Y-shaped framework group was statistically significant ( P<0.05). Patient satisfaction evaluation, 2+ 1 framework group had the highest satisfaction(34/34, 100.00%), followed by 4+ 1 framework group (34/35, 97.14%), integrated framework group(42/45, 93.33%), Y-shaped framework group(36/42, 85.71%), 1+ 1 framework group(37/45, 82.22%). Conclusion:The changes of nasolabial angle and nasal tip projection in 2+ 1 framework, integrated framework, and 4+ 1 framework were smaller than those in Y-shaped framework and 1+ 1 framework.2+ 1 framework was convenient and had good postoperative stability and high patient satisfaction.