Objective : Objective To investigate the demand for health management and influencing factors among occupational population at high risk of stroke, so as to provide insights into the development of stroke health management strategies among occupational population. Methods: Occupational population aged 40 to 60 years who participated in health examination were sampled from three tertiary hospitals in Luzhou City, Sichuan Province using a quota sampling method in the ratio of 4∶1∶1, from August to December 2020. Participants' blood biochemistry tests and health examination were collected through the examination reports, and the participants at high risk of stroke were screened using the assessment criteria for high-risk of stroke. Participants' general information and demand for health management were collected using questionnaire surveys. In addition, factors affecting the demand for health management were identified using a multivariable logistic regression model. Results: A total of 3 003 people who participated in health examination were investigated, and 1 062 participants met the assessment criteria for high risk of stroke, accounting for 35.36%. There were 1 000 men (94.16%) and 62 women (5.84%), with a mean age of (49.26±4.97) years. There were 414 professional and technical staff (39.50%). There were 709 participants (66.76%) with demand for health management, with the top three in the demand as health checkups (915 participants, accounting for 86.16%), health consultation (601 participants, accounting for 56.60%) and exercise guidance (560 participants, accounting for 52.73%), and 210 participants (19.77%) received health management. Multivariable logistic regression analysis showed that occupational population at high risk of stroke who received health management were more likely to have the demand for health management (OR=2.158, 95%CI: 1.479-3.149). Conclusions The occupational population at high risk of stroke have the demand for health management. Having received health management may affect the demand for health management among occupational population at high risk of stroke.

Objective: To investigate the implementation of sex education and its influencing factors among preschool teachers in Luzhou City, Sichuan Province, so as to provide insights into promoting the development of sex education, physical and mental health for preschool children. Methods: In January 2022, preschool teachers were sampled in 24 kindergartens in Longmatan District, Naxi District and Hejiang County of Luzhou City using the stratified random cluster sampling method. Demographic information, knowledge, attitudes, implementation of sex education, as well as difficulties, support, and needs in implementing sex education among preschool teachers were collected through questionnaire surveys. Factors affecting practice of sex education by preschool teachers were analyzed using a multivariable logistic regression model. Results: A total of 461 preschool teachers were included, including 456 females (98.92%), and had a median age of 28.00 (interquartile range, 9.50) years. The proportions of preschool teachers with good and pass of knowledge about sex education for preschool children were 10.20% and 57.48%, respectively. The proportions of preschool teachers with positive and general attitudes towards sex education were 28.20% and 36.44%, respectively. A total of 343 preschool teachers had implemented sex education (74.40%). A lack of a relaxed social environment was the main difficulty in carrying out sex education for preschool children (76.14%), while support from parents of preschool children was the primary need for conducting sex education activities (75.27%). Multivariable logistic regression analysis showed that age (>30 years, OR=2.218, 95%CI: 1.256-3.917), kindergarten type (public, OR=2.101, 95%CI: 1.253-3.524), attitude towards sex education (positive, OR=2.083, 95%CI: 1.036-4.187), participation in activities related to sex education (OR=6.355, 95%CI: 3.362-12.015), and communication with parents about sex education (OR=5.399, 95%CI: 3.152-9.248) were influencing factors for practice of sex education by preschool teachers. Conclusions The main difficulty in the practice of sex education for preschool children by preschool teachers in Luzhou City is a lack of a relaxed social environment, and there is a high demand for support from parents. Age, kindergarten type, attitude towards sex education, participation in activities related to sex education, and communication with parents about sex education are associated factors.

OBJECTIVETo study the effect on the corrosion resistance of Cr alloy in the artificial saliva with different pH value in vitro.

METHODSCompared to Ti alloy, electrochemical technique was used to measure the electric potential of corrosion (E(corr)), current density of corrosion (I(corr)) Cr alloy in the artificial saliva with different pH value. The corrosion and corrosion resistance mechanism on Cr alloy in the artificial saliva with different pH value had been investigated by the EIS curves.

RESULTSThe corrosion resistance of Co-Cr alloy was better than Ti alloy. The value of I(corr) was lower and the value of R(p) was larger than Ti alloy. The corrosion resistance of Ni-Cr alloy was worse than Ti alloy. The value of I(corr) was larger and the value of R(p) was lower than Ti alloy. The pH value in the artificial saliva was decreased, the I(corr) value of three types of alloy increased, the R(p) value of three types of alloy decreased. But the changes of Co-Cr alloy was smaller than that of Ti alloy or Ni-Cr alloy.

CONCLUSIONThe corrosion resistance of Co-Cr alloy was superior to that of Ni-Cr alloy and Ti alloy. In the acid artificial saliva, the corrosion resistance of three types of alloy descended evidently.

Corrosion ; Dental Alloys ; Electrochemistry ; Saliva, Artificial ; Surface Properties ; Titanium

OBJECTIVETo evaluate a minimally invasive technique of parotidectomy in treatment of benign parotid tumors.

METHODSThis retrospective review included 49 patients with benign parotid gland tumors. The modified technique included incision, flap elevation, facial nerve dissection, the great auricular nerve preservation and postoperative disposal.

RESULTSAll tumors were resected completely. The operation lasted 1.5 approximately 2.5 h; the average length of incisions was from 5.5 cm to 7.5 cm, and the average postoperative hospital stay was 4 days. There were no permanent facial nerve injury, no obvious scars and no depressed deformity observed postoperatively. During the 6 months approximately 5 years following-up, no tumor recurrence was found.

CONCLUSIONThe minimally invasive technique of parotidectomy reduces the disadvantages of the traditional procedure, and improves the quality of operation.T.

Adenoma, Pleomorphic ; surgery ; Adolescent ; Adult ; Female ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; methods ; Parotid Gland ; surgery ; Parotid Neoplasms ; surgery ; Retrospective Studies ; Treatment Outcome

OBJECTIVE: To evaluate the efficacy of ultrasound or fluoroscopic-guided percutaneous transluminal angioplasty (PTA) combined with thrombolysis for the treatment of acutely thrombosed arteriovenous fistula (AVF) or grafts (AVG). METHODS: One hundred and ninety-two hemodialysed patients, in whom the thrombosed arterio-venous AVF or AVG developed less than 72 h and there were no contraindications for thrombolysis and PTA, underwent PTA combined with thrombolysis therapy in Sir Run Run Shaw Hospital of Zhejiang University from October 2014 to October 2017. Under ultrasound and/or fluoroscopic guidance, balloon catheter was introduced to thrombosis sites along a guide wire. Then the balloon was inflated and normal saline mixed with urokinase and heparin was injected for thrombolysis. After blood flow was restored, angioplasty was performed on vascular stenosed sites. RESULTS: A total of 274 endovascular interventional operations were performed for 192 patients. The procedure success rate was 98.2%, clinical success rate was 93.8%and complication rate was 1.46%. The post-intervention primary patency rates for AVF group were 87.4%, 76.7%and 63.9%at 3, 6 and 12 months, respectively; while the post-intervention secondary patency rates were 93.7%, 91.6%and 83.0%, respectively. The post-intervention primary patency rates for AVG group were 60.7%, 51.5%and 43.1%at 3, 6 and 12 months, while the post-intervention secondary patency rates were 82.7%, 77.1%and 70.8%, respectively. CONCLUSIONS PTA combined with thrombolysis is an effective and safe therapeutic option for AVF and AVG thrombosis, which would prolong hemodialysis access and save vascular resources for hemodialyzed patients.
Angioplasty ; Arteriovenous Fistula ; Arteriovenous Shunt, Surgical ; Humans ; Renal Dialysis ; Retrospective Studies ; Thrombolytic Therapy ; Thrombosis ; surgery ; Treatment Outcome ; Ultrasonography

Objective: To evaluate the effectiveness of sex education curriculum on sex related knowledge, attitude and practice of preschool children in senior class, so as to provide a reference basis for the comprehensive development of early childhood sex education in the future. Methods: From December 2021 to July 2022, the two stage stratified sampling method was used to select 12 kindergartens in Luzhou City, of which 6 senior classes were chosen as the intervention group (360 before the intervention, 354 after the intervention), and the other 6 senior classes as the control group (416 before the intervention, 326 after the intervention). The intervention group was conducted with early childhood sex education classes in the form of a series of courses, with a total of four topics including one parent course and three child courses every month, while the control group received routine teaching schedule. A survey was conducted on the knowledge, attitude and practice of early childhood sex education among preschool children and their parents before and after the intervention. χ 2 text analysis was used to carry out the effect. Results: There was no statistically significant difference in sexual education related knowledge, attitude and practice between the intervention group and the control group before intervention ( P >0.05). There were statistically significant differences in the awareness rate of sexual knowledge (77.4%, 69.6%), positive attitude rate (73.7%, 10.1%), good practice rate (59.3%, 38.0%), and good knowledge, attitude and practice rate (37.9%,1.8%) between the intervention group and the control group after intervention ( χ 2=5.28, 279.77, 30.77, 134.62, P <0.05). Similar findings were observed in the intervention group before and after the intervention ( χ 2=63.39, 344.31 , 41.41, 161.03, P <0.05). The difference in the awareness rate of sexual related knowledge between the control group before and after intervention was statistically significant ( χ 2=44.29, P <0.05). Conclusion The early childhood sex education curriculum might help improve sex related knowledge, attitude and practice. Kindergartens should be encouraged to actively promote sex education, training, and guidance for preschool children and their parents, in order to improve the sex related knowledge, attitude and practice.

Self-sampling is a method by which the subject collects the own specimens for disease detection. It has the advantages of strong privacy, convenient and simple operation, free time and place, etc. It can improve the compliance of people in remote areas, affected by traditional concepts, limited by working hours and underdeveloped transportation and medical treatment to participate in disease detection and screening. With the development of "Internet+health care" and "Internet+nursing service", home-based self-sampling testing will become a developing situation for disease detection and screening. Human immunodeficiency virus and Human papillomavirus infection bring a heavy burden to individuals and society. In the absence of effective and widespread primary prevention, secondary prevention, namely "early detection, early diagnosis and early treatment" is an effective measure to control the adverse consequences. At present, there are many researches on HPV and HIV self-sampling test, whose test results are highly reliable and highly accepted in the population, and is of great significance for improving the coverage rate of cervical cancer screening and the diagnosis rate of HIV carriers.
Female ; Humans ; Papillomaviridae ; Early Detection of Cancer/methods* ; Uterine Cervical Neoplasms/prevention & control* ; Alphapapillomavirus ; Self Care/methods* ; Papillomavirus Infections/prevention & control* ; Specimen Handling/methods* ; Mass Screening/methods* ; HIV Infections/diagnosis* ; HIV ; Vaginal Smears/methods*

OBJECTIVETo establish new techniques on the control of vessel dividing and bleeding in minimally invasive video-assisted thyroid surgeries.

METHODSOne hundred and seventy volunteer patients with nodular goiter, adenoma and Graves' disease consecutively received the endoscopic thyroid operation according to Miccoli's mode from April 2002 to June 2003. The approach was designed to use ultrasonically activated scalpels [Harmonic Scalpel (R), Johnson & Johnson, USA] as a major, suction-dissector or others as supplementary instruments during the whole process. During the operations, two methods, "sequenced dissect-coagulate-cut" and "pre-coagulation + interlaced cut-suck-coagulate-dissect", were employed and separately evaluated for their safety or efficacy.

RESULTSAll of the procedures, except that 2 (their lesions were proven to be "cancer" by frozen section and need different treatment), were successfully completed. None of them were interrupted and converted to open surgery due to uncontrolled bleeding or severe postoperative hematoma. Branches of major thyroid vessels can be directly divided by ultrasonic scalpel without ligation or using hemoclips, supposing the technique of "sequenced dissect-coagulate-cut" method was strictly used. Bleeding during intra-gland dissection can be effectively controlled by the combined techniques of precoagulation of the vessels and the capsule vessel network near and around the incision, and then, by coordinating manipulation with a special multiple functional ultrasonic scalpel and a suction-dissector, supposing the technique of "interlaced cut-suck-coagulate-dissect" was properly employed.

CONCLUSIONSUsing ultrasonic scalpels as major, suction-dissector or others as supplementary instruments, manipulating cooperatively during the whole process, can be an ideal fashion in the site of a narrow gasless working space via a small single incision in anterio-inferior neck. And this may dramatically simplify the manipulation, and hence greatly reduce the operative difficulty. The reforms resolved two key technique problems in Miccoli's endoscopic operation: vessel-dividing and bleeding-control, therefore, laying a sound basis for the clinical application of this special approach.

Adolescent ; Adult ; Aged ; Hemostasis, Surgical ; methods ; Humans ; Middle Aged ; Thyroid Gland ; blood supply ; Thyroidectomy ; instrumentation ; methods ; Video-Assisted Surgery ; methods

OBJECTIVETo investigate the feasibility, technique and significance of preserving the posterior branch of the great auricular nerve in parotid surgery.

METHODS48 cases with parotid tumor who underwent regular parotid surgery with cosmetic incision were included. The sensory testing was carried out in upper auricle, lobule, infra-auricular, pre-auricular and post-auricular region preoperatively and at 10 days, 1 month, 6 months and 12 months after operation.

RESULTSThe posterior branch of the great auricular nerve was preserved in 35 out of 48 patients. There was no sensory loss in the upper auricle and post-auricular region. Early after operation, sensory disturbance was found in lobule, infra-auricular region, but significantly in pre-auricular region. The sensory disturbance was recovered slowly to nearly normal level at six months after operation. 13 cases with sacrifice of the nerve had a significantly higher sensory disturbance and a longer recovery time.

CONCLUSIONSPreservation of the posterior branch of the great auricular nerve during parotid surgery is technically feasible and can reduce the postoperative sensory disturbance and possible permanent sensory loss. It further helps to improve the quality of life early after operation.

Adolescent ; Adult ; Aged ; Ear, External ; innervation ; Female ; Humans ; Male ; Middle Aged ; Parotid Gland ; innervation ; surgery ; Parotid Neoplasms ; surgery ; Postoperative Complications ; prevention & control ; Young Adult

OBJECTIVETo investigate the relevant applied technique and clinical value of endoscope-assisted repair of zygomatic arch fracture via a short hidden preauricular incision.

METHODSThere were 7 cases of unilateral zygomatic arch fracture and 10 cases of unilateral zygomatic fracture. Reduction and fixation of zygomatic arch in all cases were performed via a short preauricular incision assisted by endoscope.

RESULTSSymmetric malar was achieved in all cases after operation. There was no difficulty in opening mouth, no chewing problems or severe complications.

CONCLUSIONSEndoscope-assisted repair of zygomatic arch fracture via a short hidden preauricular incision can be an alternative operation for zygomatic arch fracture.

Adult ; Endoscopes ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Male ; Zygoma ; injuries ; surgery ; Zygomatic Fractures ; surgery