1.Effectiveness evaluation of the construction of "mosquito-free village" in Fuling District
WANG Ling ; JU Denghui ; XIANG Yu ; YU Shan ; LI Jiwen
Journal of Preventive Medicine 2025;37(7):714-717,721
Objective:
To evaluate the effectiveness for the construction of the "mosquito-free village" in Jinzishan Village, Fuling District, Chongqing Municipality, so as to provide references for improving mosquito control practices in hilly and mountainous rural areas.
Methods:
The "mosquito-free village" initiative in Fuling District was launched in April 2023. Mosquito density monitoring was conducted annually from April to October. Larval mosquito density was monitored using the path method and scoop-catch method, and adult mosquito density was monitored using human-baited landing catch. One hundred and fifty-two villagers were randomly conducted before the "mosquito-free village" construction (April 2023) and one hundred and sixty-seven villagers were randomly conducted after the construction (November 2024). Knowledge awareness rate and correct behavioral practices regarding mosquito control among villagers were assessed. The satisfaction among villagers were evaluated in November 2024. The effectiveness of the initiative was evaluated based on mosquito density data, health education outcomes from 2023 to 2024, and satisfaction.
Results:
The average larval mosquitoes path index in Jinshanzi Village decreased from 1.50 spots/km in 2023 to 0.07 spots/km in 2024 (P<0.05). The average sampling spoon index of larval mosquitoes decreased from 3.43% in 2023 to 0 in 2024. The average landing rate index of adult mosquitoes decreased from 3.90 mosquitoes/(person·time) in 2023 to 0.38 mosquitoes/(person·time) in 2024 (P<0.05). The awareness rate of mosquito control knowledge and the formation rate of correct behaviors among villagers increased from 59.87% and 57.24% in 2023 to 92.22% and 90.42% in 2024, respectively (both P<0.05). In 2024, the satisfaction of villagers was 92.81%.
Conclusion
The mosquito density, health education effectiveness, and satisfaction of villagers in Jinzishan Village have all met the evaluation criteria for a "mosquito-free village", providing a replicable model for promotion in hilly and mountainous rural areas.
2.Clinical application and three-dimensional finite element analysis of along-axis extraction method in mandibular mesial and horizontally impacted third molar surgery.
Fei WANG ; Xinyue ZHANG ; Muqing LIU ; Enbo WANG ; Denghui DUAN
Journal of Peking University(Health Sciences) 2025;57(1):106-112
OBJECTIVE:
To investigate the clinical application effect of the along-axis extraction method in the extraction of impacted mandibular third molars (IMTM) and to compare the biomechanical characteristics of different root extraction techniques through three-dimensional finite element analysis.
METHODS:
A total of 68 patients requiring IMTM extraction were enrolled and randomly divided into two groups: the experimental group underwent the along-axis extraction method, while the control group underwent the traditional buccal bone removal and root extraction method. The duration of the procedure, intraoperative and postoperative complications were recorded. Three-dimensional finite element analysis further revealed the stress distribution in the tooth root, jawbone, periodontal ligament, and mandibular canal during different root extraction methods.
RESULTS:
The duration of root extraction, pain score and swelling on the first postoperative day in the control group were (7.87±3.90) min, 4.62±1.90 and (11.37±5.12) mm, respectively, which were significantly higher than those in the experimental group [(5.74±2.37) min, 3.87±1.19 and (7.22±3.39) mm, respectively]. The root fracture rate and lingual bone plate fracture rate in the control group were significantly higher than those in the experimental group (P < 0.05). The results of finite element analysis showed that the control group ' s lingual al-veolar bone had the higher peak equivalent stress, and lingual bone plate fracture was prone to occur. The periodontal ligament of the experimental group had the higher equivalent stress value, making it more likely to rip and more likely to cause root displacement. When subjected to force, the experimental group' s instantaneous root displacement was higher, but the control group ' s root displacement was more pronounced in the lingual direction.
CONCLUSION
This study suggests that the along-axis extraction me-thod can not only effectively shorten the operative time but also reduce postoperative complications after extraction of impacted mandibular third molars, and enhance the safety of the operation and the patient' s comfort. Three-dimensional finite element analysis shows the biomechanical characteristics of various root extraction techniques visually, serves as a valuable guide for choosing and refining clinical surgical techniques, and confirms that extracting a tooth' s root along its long axis yields better clinical results.
Humans
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Finite Element Analysis
;
Tooth, Impacted/surgery*
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Tooth Extraction/methods*
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Molar, Third/surgery*
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Mandible/surgery*
;
Imaging, Three-Dimensional
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Female
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Adult
;
Biomechanical Phenomena
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Male
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Tooth Root/surgery*
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Young Adult
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Adolescent
3.Clinical features and early warning indicators of patients with acute-on-chronic liver failure and bacterial infection
Zhanhu BI ; Linxu WANG ; Haifeng HU ; Hong DU ; Yidi DING ; Xiaofei YANG ; Jiayi ZHAN ; Fei HU ; Denghui YU ; Hongkai XU ; Jianqi LIAN
Journal of Clinical Hepatology 2024;40(4):760-766
ObjectiveTo investigate the clinical features of patients with acute-on-chronic liver failure (ACLF) and bacterial infection and early warning indicators associated with multidrug-resistant infections. MethodsA retrospective analysis was performed for 130 patients with ACLF and bacterial infection who attended The Second Affiliated Hospital of Air Force Medical University from January 1, 2010 to December 31, 2021, and according to the drug susceptibility results, the patients were divided into multidrug-resistant (MDR) bacterial infection group with 80 patients and non-MDR bacterial infection group with 50 patients. General information and laboratory examination results were compared between the two groups to screen for the early warning indicators associated with MDR bacterial infection. The Student’s t-test was used for comparison of normally distributed continuous data with homogeneity of variance between two groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data or continuous data with heterogeneity of variance between two groups; the chi-square test or the Fisher’s exact test was used for comparison of categorical data between two groups. The binary logistic regression analysis and the receiver operating characteristic (ROC) curve were used to assess the predictive value of early warning indicators. ResultsAmong the 130 patients with ACLF and bacterial infection, sputum (27.7%) was the most common specimen for detection, followed by blood (24.6%), urine (18.5%), and ascites (17.7%). Bacterial infections were dominated by Gram-negative bacteria (58.5%). Of all bacteria, Escherichia coli (18.5%), Klebsiella pneumoniae (14.6%), and Enterococcus faecium (13.8%) were the most common pathogens. Gram-positive bacteria had a high resistance rate to the antibacterial drugs such as erythromycin (72.2%), penicillin (57.4%), ampicillin (55.6%), and ciprofloxacin (53.7%), while Gram-negative bacteria had a high resistance rate to the antibacterial drugs such as ampicillin (73.3%), cefazolin (50.0%), and cefepime (47.4%). The patients with ACLF and bacterial infection had a relatively high rate of MDR bacterial infection (61.5%). Comparison of clinical data between the two groups showed that compared with the patients with non-MDR bacterial infection, the patients with MDR bacterial infection had significantly higher levels of alanine aminotransferase (Z=2.089, P=0.037), aspartate aminotransferase (Z=2.063, P=0.039), white blood cell count (Z=2.207, P=0.027), and monocyte count (Z=4.413, P<0.001). The binary logistic regression analysis showed that monocyte count was an independent risk factor for MDR bacterial infection (odds ratio=7.120, 95% confidence interval [CI]: 2.478 — 20.456,P<0.001) and had an area under the ROC curve of 0.686 (95%CI: 0.597 — 0.776) in predicting ACLF with MDR bacterial infection(P<0.001), with the optimal cut-off value of 0.50×109/L, a sensitivity of 0.725, and a specificity of 0.400. ConclusionACLF combined with bacterial infections is mainly caused by Gram-negative bacteria, with the common pathogens of Escherichia coli and Klebsiella pneumoniae and a relatively high MDR rate in clinical practice. An increase in monocyte count can be used as an early warning indicator to distinguish MDR bacterial infection from non-MDR bacterial infection.
4.Nipah virus: epidemiology, pathogenesis, treatment, and prevention.
Limei WANG ; Denghui LU ; Maosen YANG ; Shiqi CHAI ; Hong DU ; Hong JIANG
Frontiers of Medicine 2024;18(6):969-987
Nipah virus (NiV) is a zoonotic paramyxovirus that has recently emerged as a crucial public health issue. It can elicit severe encephalitis and respiratory diseases in animals and humans, leading to fatal outcomes, exhibiting a wide range of host species tropism, and directly transmitting from animals to humans or through an intermediate host. Human-to-human transmission associated with recurrent NiV outbreaks is a potential global health threat. Currently, the lack of effective therapeutics or licensed vaccines for NiV necessitates the primary utilization of supportive care. In this review, we summarize current knowledge of the various aspects of the NiV, including therapeutics, vaccines, and its biological characteristics, epidemiology, pathogenesis, and clinical features. The objective is to provide valuable information from scientific and clinical research and facilitate the formulation of strategies for preventing and controlling the NiV.
Animals
;
Humans
;
Disease Outbreaks/prevention & control*
;
Henipavirus Infections/virology*
;
Nipah Virus/pathogenicity*
;
Viral Vaccines
;
Zoonoses/virology*
5.Recent advance in visual function assessment methods for children with optic pathway glioma
Jianping ZHANG ; Denghui LI ; Pengfei JIAO ; Zeqing WANG ; Yu WANG ; Zhiyun LI ; Wei JI
Chinese Journal of Neuromedicine 2023;22(12):1293-1296
Different degrees of visual function impairment is the main reason for first visit of children with optic pathway glioma; it seriously affects the quality of life of children. Early diagnosis, timely treatment, maximum preservation or restoration of the children's vision function, and improvement of quality of life of children are major challenges. This article reviews the recent advance in visual function assessments for children with optic pathway glioma, aiming to provide some references for early clinical objective assessment of visual function impairment and clear diagnosis.
6.Robot-assisted unilateral and manual unilateral/bilateral puncture kyphoplasty for the treatment of osteoporotic thoracolumbar fracture: a comparison of therapeutic effects
Hangchuan BI ; Hao DUAN ; Denghui LI ; Rongji YAN ; Gang JIANG ; Xianglin SHEN ; Jun SHU ; Xiang TAI ; Jianyi YANG ; Shuanglin ZHAO ; Zhihua WANG
Chinese Journal of Trauma 2023;39(9):807-815
Objective:To compare the efficacies of robot-assisted unilateral and manual unilateral/bilateral puncture kyphoplasty (PKP) for the treatment of osteoporotic thoracolumbar fracture (OTLF).Methods:A retrospective cohort study was conducted to analyze the clinical data of 64 OTLF patients admitted to First Affiliated Hospital of Kunming Medical University from April 2021 to May 2022. The patients included 28 males and 36 females, aged 57-88 years [(74.5±5.6)years]. Fracture segments were 12 patients from T 1-T 9, 32 from T 10-L 2, and 20 from L 3-L 5. All the patients were treated with PKP. Among them, 25 patients underwent manual unilateral puncture (manual unilateral group), 18 patients underwent manual bilateral puncture (manual bilateral group), and 21 patients underwent robot-assisted unilateral puncture (robot-assisted unilateral group). The operation time, channel establishment time, intraoperative blood loss, intraoperative fluoroscopy times, bone cement injection volume, and bone cement spatial distribution score were compared among the three groups. The visual analogue score (VAS), Oswestry disability index (ODI) and Cobb angle of kyphosis were compared among the three groups before operation, at 3 days and 3 months after operation, and at the last follow-up. The incidence of complications was compared. Results:All the patients were followed up for 6-10 months [(7.0±0.9)months]. The operation time of the manual unilateral group was (30.2±6.1)minutes, which was shorter than (37.9±8.9)minutes of the robot-assisted unilateral group and (49.0±10.2)minutes of the manual bilateral group; the operation time of the robot-assisted unilateral group was markedly shorter than that of the manual bilateral group (all P<0.05). The channel establishment time of the robot-assisted unilateral group was (4.7±1.4)minutes, which was markedly shorter than (10.4±4.4)minutes of the manual unilateral group and (21.7±6.2)minutes of the manual bilateral group (all P<0.05). The intraoperative blood loss of the robot-assisted unilateral group was (23.8±7.2)ml, which was less than (34.3±7.7)ml of the manual unilateral group and (55.9±18.7)ml of the manual bilateral group (all P<0.05). The number of intraoperative fluoroscopy of the robot-assisted unilateral group was (12.1±2.5)times, which was markedly less than (21.2±5.9)times of the manual unilateral group and (39.6±9.5)times of the manual bilateral group (all P<0.05). The channel establishment time, intraoperative blood loss and intraoperative fluoroscopy times of the manual unilateral group were markedly shorter or less than those of the manual bilateral group (all P<0.05). The bone cement injection volume and bone cement distribution score of the robot-assisted unilateral group were (4.7±1.3)ml and (7.9±1.2)points, which were not statistically different from (5.7±1.3)ml and (8.7±1.1)points of the manual bilateral group (all P>0.05), but were markedly higher than (3.0±1.3)ml and (5.1±1.8)points of the manual unilateral group (all P<0.05). There were no significant differences in VAS, ODI and Cobb angle among the three groups at 3 days, 3 months after operation and at the last follow-up (all P>0.05), but which were all lower than those before surgery (all P<0.05). There were no significant differences in VAS, ODI and Cobb angle among three groups before operation, at 3 days, 3 months after surgery and at the last follow-up (all P>0.05). The complication rate was 4.8% (1/21) of the robot-assisted unilateral group, 32.0% (8/25) of the manual unilateral group, and 33.3% (6/18) of the manual bilateral group, with no significant difference between the manual unilateral group and the manual bilateral group ( P>0.05), but both of which was markedly higher than that of the robot-assisted unilateral group ( P<0.05). Conclusion:Robot-assisted unilateral puncture and manual unilateral/bilateral puncture PKP can both achieve satisfactory results for the treatment of OTLF, but robot-assisted unilateral puncture has shorter channel establishment time, less intraoperative blood loss and intraoperative fluoroscopy times, and lower complication rate.
7.Recent advance in intraspinal pressure monitoring in traumatic spinal cord injury
Jianping ZHANG ; Denghui LI ; Pengfei JIAO ; Wei JI ; Jianjun SUN ; Jianxun HE ; Yu WANG ; Zhiyun LI
Chinese Journal of Neuromedicine 2022;21(9):967-969
Traumatic spinal cord injury (TSCI) is a common nerve injury in the world, which has a high incidence and disability rate. Intraspinal pressure (ISP) monitoring is performed by placing a pressure sensing probe under the dura of the most severe part of the spinal cord injury after anterior/posterior laminectomy or vertebral body decompression. ISP value is monitored dynamically and objectively in real time by the pressure sensing system. Recent studies have found that ISP monitoring plays an important role in the clinical management and prognosis evaluation of TSCI. The author reviews the recent advance in ISP monitoring in TSCI in order to provide references for the improvement of clinical diagnosis and treatment of TSCI.
8.Recent advance in intraspinal pressure monitoring in traumatic spinal cord injury
Jianping ZHANG ; Denghui LI ; Pengfei JIAO ; Wei JI ; Jianjun SUN ; Jianxun HE ; Yu WANG ; Zhiyun LI
Chinese Journal of Neuromedicine 2022;21(9):967-969
Traumatic spinal cord injury (TSCI) is a common nerve injury in the world, which has a high incidence and disability rate. Intraspinal pressure (ISP) monitoring is performed by placing a pressure sensing probe under the dura of the most severe part of the spinal cord injury after anterior/posterior laminectomy or vertebral body decompression. ISP value is monitored dynamically and objectively in real time by the pressure sensing system. Recent studies have found that ISP monitoring plays an important role in the clinical management and prognosis evaluation of TSCI. The author reviews the recent advance in ISP monitoring in TSCI in order to provide references for the improvement of clinical diagnosis and treatment of TSCI.
9.Individualized treatment scheme for pediatric foreskin trauma
Guangchao TIAN ; Shengli ZHANG ; Sitong YUAN ; Denghui WANG ; Mengjie CUI ; Xiangyang CHU ; Xiaojiang HAN ; Yingzhong FAN
Chinese Journal of Plastic Surgery 2022;38(5):565-569
Objective:To summarize the experience of personalized treatment of pediatric prepuce trauma.Methods:The clinical data of children with prepuce trauma treated in the Department of Pediatric Surgery of the First Affiliated Hospital of Zhengzhou University from January 2019 to March 2021 were analyzed retrospectively. First, pediatric prepuce trauma was classified and graded before treatment, and then the treatment plans were developed with the informed consent of the children’s parents. Mild injuries were treated conservatively. In moderate injuries, in situ suture repair and frenuloplasty were performed. In severe injuries, modified circumcision and prepuce flap prepuceplasty were performed. In extremely severe injuries, composite flap (scrotal and mons pubis flap combined with prepuce flap) prepuceplasty was performed. The children were followed up for penile appearance and urinary and erectile function postoperatively.Results:A total of 36 male children, aged 6 months to 10 years, were enrolled in the study. Type of foreskin trauma: 7 cases of foreskin tie injury, 7 cases of inner plate injury, 12 cases of outer plate injury, and 10 cases of combined inner and outer plate injury; degree of foreskin trauma: 9 cases of mild injury, 6 cases of moderate injury, 19 cases of severe injury, and 2 cases of extremely severe injury. 9 of the 36 cases were treated conservatively; 4 cases were treated with in situ suture repair; 5 cases were treated with in situ suture repair + circumcision; 12 cases were treated with modified circumcision; 4 cases were treated with foreskin flap penile circumcision, and composite flaps (scrotal and mons pubis flaps as advancement flap + prepuce flap) were applied in 2 cases. All the children were followed up for 3~6 months. The appearance of the penis and scrotum was good, and the urination and erectile function were normal after treatment. The parents of the children were satisfied with the treatment results.Conclusions:For the treatment of pediatric prepuce trauma, it is necessary to comprehensively consider the location of the prepuce involved and the degree of prepuce injury and adopt an appropriate personalized treatment plan, which can achieve better results.
10.Individualized treatment scheme for pediatric foreskin trauma
Guangchao TIAN ; Shengli ZHANG ; Sitong YUAN ; Denghui WANG ; Mengjie CUI ; Xiangyang CHU ; Xiaojiang HAN ; Yingzhong FAN
Chinese Journal of Plastic Surgery 2022;38(5):565-569
Objective:To summarize the experience of personalized treatment of pediatric prepuce trauma.Methods:The clinical data of children with prepuce trauma treated in the Department of Pediatric Surgery of the First Affiliated Hospital of Zhengzhou University from January 2019 to March 2021 were analyzed retrospectively. First, pediatric prepuce trauma was classified and graded before treatment, and then the treatment plans were developed with the informed consent of the children’s parents. Mild injuries were treated conservatively. In moderate injuries, in situ suture repair and frenuloplasty were performed. In severe injuries, modified circumcision and prepuce flap prepuceplasty were performed. In extremely severe injuries, composite flap (scrotal and mons pubis flap combined with prepuce flap) prepuceplasty was performed. The children were followed up for penile appearance and urinary and erectile function postoperatively.Results:A total of 36 male children, aged 6 months to 10 years, were enrolled in the study. Type of foreskin trauma: 7 cases of foreskin tie injury, 7 cases of inner plate injury, 12 cases of outer plate injury, and 10 cases of combined inner and outer plate injury; degree of foreskin trauma: 9 cases of mild injury, 6 cases of moderate injury, 19 cases of severe injury, and 2 cases of extremely severe injury. 9 of the 36 cases were treated conservatively; 4 cases were treated with in situ suture repair; 5 cases were treated with in situ suture repair + circumcision; 12 cases were treated with modified circumcision; 4 cases were treated with foreskin flap penile circumcision, and composite flaps (scrotal and mons pubis flaps as advancement flap + prepuce flap) were applied in 2 cases. All the children were followed up for 3~6 months. The appearance of the penis and scrotum was good, and the urination and erectile function were normal after treatment. The parents of the children were satisfied with the treatment results.Conclusions:For the treatment of pediatric prepuce trauma, it is necessary to comprehensively consider the location of the prepuce involved and the degree of prepuce injury and adopt an appropriate personalized treatment plan, which can achieve better results.


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