Objective To study the application of ultrasonic freestyle extended imaging(FEI) in thyroid,breast,artery,vein diseases.Methods Thirty-five patients with above mentioned diseases were examined by FEI and the images were analyzed.Results FEI could entirely show the scan region needed.It also could enhance image quality,show the physiologic radian of the body,measure the nidi accurately.Conclusion The FEI technology provides more image information and is of great help to improve the clinic diagnosis ratios.

Objective To compare the short-term effect of Docetaxe and Irinotecan combined with Xeloda in treatment of end stage gastric cancer.Methods 65 patients with advanced gastric cancer were randomly divided into two groups.33 patients in group A received Docetaxe plus Xeloda and 32 patients in group B received Irinotecan plus Xeloda.At least two treatment cycles were completed.Results The overall response rate is 54.54%(A) and 53.13%(B),and the median progression-free survival was 6.1 months and 6.2 months.Patients in group A experienced more anemia,and patients in group B,diarrhoea.Conclusion The effects of Docetaxe or Irinotecan combined with Xeloda in the treatment of advanced gastric cancer are comparable and well tolerated.

Objective To observe the efficacy and safety of Shenqiwuweizikeli for treating chronic insomnia.Methods One hundred and ninety-six cases of subjects were randomly divided into Shenqiwuweizikeli group (n =98) and Estazolam tablets group (n =98).The pittsburg sleep quality index (PSQI) was adopted to evaluate the clinical effects and records of adverse reactions during the study period.Also the lab routine inspection(blood routine,urine routine,liver and kidney function, electrocardiogram were conducted to evaluate safety.Results The Shenqiwuweizikeli and Estazolam tablets all had significant effects for chronic insomnia.The total effective rate of Shenqiwuweizikeli group was 92.86％ (91/98), of Estazolam tablets group was 93.88％(92/98) ,and there was no significant difference (P＞0.05).There were no abnormalities in terms of each routine inspection index.After stopping take the medicine, The adverse reactions including bounce sex insomnia(60 cases), daytime sleepiness/drowsiness (55 cases), dizziness with lacking of power and light headedness(23 cases) in Estazolam tablets group were all more than Shenqiwuweizikeli group with significant difference(P＜0.01).Conclusion The Shenqiwuweizikeli has definite efficacy and safety for treated with chronic insomnia without withdrawal of recoil and dependence.

Objective To evaluate the medium and long term safety and efficacy of sacrospinous ligament fixation (SSLF) performed with conventional instruments in treating stage Ⅲ-Ⅳ pelvic organ prolapse (POP).Methods A prospective cohort analysis was conducted in the Peking Union Medical College Hospital,between May 2007 and June 2015,enrolling 55 women with stage Ⅲ-Ⅳ POP who intended to receive SSLF.Primary end points were objective success rates using pelvic organ prolapse quantitation system (POP-Q) and subjective satisfaction rates with questionnaires after surgery according to vaginal examination and related questionnaires for all patients who received SSLF eventually.Exploratory outcomes included perioperative parameters and complications.Results Of these 55 POP patients enrolled,52 (95％,52/55) received SSLF using conventional surgical instruments,the other 3 cases converted to ischial spinous fascia fixation due to difficulty exposing.Medium blood loss during operation was 100 ml (20-300 ml) and operative time 60 minutes (20-165 minutes).Pelvic hematoma with diameters of 5 cm and 7 cm were observed in two patients,both recovered fully with conservative methods.All patients were able to micturate spontaneously after catheter withdrawal.One patient reported right thigh pain after operation which remained till 3-month follow-up and relieved after physiotherapy.The objective success rate was 100％ (52/52) at 3 months.With a medium follow-up time of 23.7 months,the objective success rate was 98％ (51/52),the recurrence rate was 2％ (1/52) and the satisfactory rate was 94％ (49/52).De novo urinary incontinence occurred in 6％ (3/52) of patients.Conclusion Most POP could be corrected with SSLF using conventional instruments which is a feasible,economic and effective procedure for Asian patients with medium compartment prolapse.

Objective:To measure the bioelectrical impedance around the dental implants with bone defects.Methods:Bilateral maxillar second premolar were extracted in 6 native mongrel dogs,implants were placed immediately with or without bone defect of corresponding alveolar bene.Impedance value(IV)between the implant and contralateral mouth corner was measured by LCR TEST-ER.IVs were compared and analyzed by SPSS.Results:IVs of bone defect group were bigger than that of control group(P <0.05), in largger defect group were smaller than that in smaller group(P <0.05).Conclusion:Bioelectrical impedance can be used as an evaluation of peri-implant bone defects and the size of bone defect.

Objective: To describe the status of cardiovascular health (CVH) of children and adolescents aged 6-16 years in Beijing during 2017-2018. Methods: The school-based Cardiovascular and Bone Health Promotion Program(SCVBH) was conducted from November 2017 to January 2018. 15 391 children and adolescents aged 6-16 years were selected from grade 1 to 4 in 8 primary schools, grade 1 in 21 middle schools and senior grade 1 in one twelve-year education school in Dongcheng, Fangshan, Miyun and Haidian Districts of Beijing by using a cluster sampling method. Seven cardiovascular health indicators, including smoking, body mass index, dietary intake, physical activity, blood pressure, blood glucose, and total cholesterol, were categorized as poor, intermediate, and ideal according to American Heart Association (AHA) criteria. The status of CVH was evaluated according to the criteria of the ideal CVH related behaviors and factors defined by AHA. Results: The proportion of children and adolescents with an ideal smoking, dietary intake and physical activity indicators reached 99.2%(4 982/15 108), 19.7%(2 921/14 805), 17.8% (2 499/14 056), respectively. The proportion of children and adolescents with 7 and 4-5 ideal cardiovascular health indicators was 1.7%(209/12 560) and 65.1%(8 176/12 560). The proportion of children and adolescents with 4-7 ideal cardiovascular health indicators, 2-4 ideal health behavior indicators and 2-3 ideal health factors was significantly higher in urban than that in rural all P values<0.001. The proportion of females with 4-7 ideal cardiovascular health indicators, 2-4 ideal health behavior indicators and 2-3 ideal health factors was significantly higher than that in males (all P values<0.001). Conclusion The prevalence of ideal cardiovascular health of children and adolescents aged 6-16 years in Beijing during 2017-2018 was very low, particularly for healthy dietary intake and physical activity. Effective public health interventions should be implemented to improve the status of cardiovascular health of them.

Objective: To investigate the effects of hydrophilic treatment on the surface morphology and surface properties of pure titanium and titanium-zirconium alloy implants, and to provide reference for the studies of implant surface modification. Methods: The pure titanium group, the hydrophilic pure titanium group, the titanium zirconium alloy group and the hydrophilic titanium-zirconium alloy group were prepared by sandblasting and acid-etching or hydrophilic sandblasting and acid-etching, (11 specimens in each group). The surface morphology and surface properties of four types of titanium specimens were analyzed by surface contact angle meter, scanning electron microscope (SEM), optical profilometer, atomic force microscope (AFM) and Raman spectrometer. Results: The surface contact angles of hydrophilic pure titanium and hydrophilic titanium-zirconium alloy were 1.6°±0.3° and 1.5°±0.2°, and the surface contact angles of pure titanium and titanium-zirconium alloy were 101.4°±4.6° and 96.2°±3.0°, respectively. SEM showed that the nano-protrusions on the surface of pure titanium and titanium-zirconium alloys were less or even absent, while the nano-protrusions on the surface of hydrophilic pure titanium and hydrophilic titanium-zirconium alloys were relatively more; the nano-protrusions on the surface of hydrophilic pure titanium surface were small and dense relatively, but the nano-protrusions of the hydrophilic titanium-zirconium alloy had large diameters and were dispersed relatively. The optical profiler and AFM showed that the surface roughness of hydrophilic pure titanium and hydrophilic titanium-zirconium alloy was significantly higher than that of pure titanium and titanium-zirconium alloy (P<0.05). Raman spectroscopy showed that only the amorphous TiO₂ was present on the surface of the pure titanium group, while the rutile TiO₂ characteristic peak was observed in the other three groups, but the lateral inhomogeneity was observed. After Raman shift 610 cm^-1, the Raman spectra of four groups were similar. Conclusions Hydrophilic sandblasting and acid-etching treatment can improve the surface hydrophilicity and surface roughness of pure titanium and titanium zirconium alloy, and improve the surface properties of pure titanium and titanium zirconium alloy implants.

Objective To summarize the clinical,electrophysiological profile and prognosis in paraneoplastic syndrome with SRY-like high-mobility group superfamily of developmental transcription factors (SOX) 1 antibody.Methods The clinical profile,laboratory examination,electrophysiology,tumor,treatment and prognosis of three patients of paraneoplastic syndrome with SOX1 antibody in Tangdu Hospital,Air Force Military Medical University from 2016 to 2018 were retrospectively analyzed.Results Proximal lower limbs weakness was the first symptom in all the three patients,weakness normally spreading proximally to distally,involving feet and hands,finally reaching the oculobulbar region,and dry mouth was the most common autonomic dysfunction.Compound muscle action potential (CMAP) amplitude was low in all the patients,and the CMAP amplitude became even lower at low stimulating frequencies.An increase in CMAP amplitude with high-frequency stimulation was found in two patients during the follow-up.Lambert-Eaton myasthenic syndrome (LEMS) and motor axonal peripheral neuropathy were considered.Acetylcholine receptors antibody was positive in one case and voltage-gated calcium channel antibody was positive in another case.Two cases were found complicated with small cell lung carcinoma,one case with small cell carcinoma of the esophagus.After treatment of intravenous immunoglobulin,chemotherapy and pyridostigmine,the prognosis of the patients was different.Conclusions SOX1 antibody as an antibody in paraneoplastic syndrome,is most common in small cell lung cancer with LEMS,sometimes with axonal peripheral neuropathy.LEMS needs to be considered when patients manifest proximal limb weakness and dry mouth,and screening for tumors is needed.

Objective: To investigate the current situation of obesity and related metabolic abnormalities among preschool children, so as to provide theoretical support for future intervention. Methods: A cohort of 3 952 children, born in Tianjin and enrolled in the kindergarten from September 2017 to October 2018, were selected to conduct a baseline survey and a three-year follow-up (questionnaire survey, physical examination and laboratory testing). At the same time, a two-way cohort study was conducted to retrospectively collect maternal prenatal examination, delivery and regular physical examination information of children from birth to preschool age from Tianjin Maternal and Child Health Information System. Results: A total of 3 935, 3 654 and 2 739 children completed the follow up in the primary, middle and senior classes of kindergarten respectively. The height and weight of pre-school children increased with age, while the percentage of body fat decreased with age ( β-trend =-0.74, P <0.01). During three-year follow up, height, weight and body mass index of boys were higher than girls (P<0.05), while the percentage of body fat was lower than girls (primary class: 17.5%,18.5%; middle class: 16.4%,17.2%; senior class: 16.1%,17.1%, P <0.05). The detection rate of overweight (including obesity) and obesity increased with age( χ 2 trend were 15.51,38.72, P <0.05). The total detection rate of obesity increased from 5.4% at the baseline level to 9.6%. Laboratory test results showed that the detection rates of fasting blood glucose of boys were higher than that of girls in primary class, but blood lipid abnormalities were in the opposite (glucose: 7.7%, 4.8 %; lipid: 23.8% , 27.7%)( χ 2=12.01, 6.63, P <0.05). Conclusion The study has established a large growth cohort starting from the early embryonic stage, which will help to establish the strategies to promote children s health and prevent obesity and chronic diseases from multidimensional perspectives.

Objective:To investigate the clinical characteristics and surgical effects of acute calculous cholecystitis (ACC) in high altitude area of Tibet.Methods:The retrospective cohort study was conducted. The clinicopathological data of 182 ACC patients who underwent surgery in the 954th Hospital of Army from January 2016 to December 2020 were collected. There were 56 males and 126 females, aged (41±13)years. Of the 182 patients, 61 cases undergoing open cholecystec-tomy were divided into the open group, and 121 cases undergoing laparoscopic cholecystectomy (LC) were divided into the laparoscopic group. Observation indicators: (1) clinical characteristics of ACC in high altitude area; (2) surgical situations; (3) postoperative complications; (4) follow-up. Follow-up was conducted using outpatient examination and telephone interview to detect postopera-tive complications of patients up to October 2021. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the t test. Measure-ment data with skewed distribution were represented as M( Q1, Q3) or M(range), and comparison between groups was conducted using the Mann-Whitney U test. Count data were expressed as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test. Results:(1) Clinical characteristics of ACC in high altitude area. Of the 182 patients, cases with symptom duration as <3 days, 3 days to 1 month, >1 month and ≤12 months, >12 months were 37, 43, 57, 45, respectively. Seventy-seven of the 182 patients were combined with other diseases before surgery. (2) Surgical situations. Two cases in the open group were found common bile duct stones during the operation, and underwent choledochotomy and T-tube drainage. Nine cases in the laparoscopic group were converted to laparotomy, including 3 cases with severe abdominal adhesion and ineffective hemostasis, 6 cases with anatomical variation of Calot triangle. The conversion to laparotomy rate was 7.438%(9/121). The other patients in the open group and the laparoscopic group completed surgery successfully. The operation time, volume of intraoperative blood loss, time to postoperative first out-of-bed activities, time to postoperative first flatus, cases with indwelling drainage tube, cases with acute simple cholecystitis, acute suppurative cholecystitis, acute gangrene cholecystitis, gallbladder perforation of disease pathological type, postoperative white cell count, postoperative neutrophil percentage, duration of postoperative hospital stay were (109±42)minutes, 50(45,100)mL, (16.1±1.5)hours, (31.4±11.9)hours, 33, 25, 27, 6, 3, (6.8±1.9)×10 9/L, 72.7%±7.4%, (7.3±1.7)days for the open group. The above indicators were (98±43)minutes, 20(20,50)mL, (12.9±1.4)hours, (26.7±12.1)hours, 51, 56, 51, 9, 5, (7.1±2.4)×10 9/L, 70.5%±8.7%, (6.4±1.7)days for the laparoscopic group. There were significant differences in the volume of intraopera-tive blood loss, time to postoperative first out-of-bed activities, time to postoperative first flatus, duration of postoperative hospital stay between the two groups ( Z=?6.75, t=14.41, 2.46, 3.45, P<0.05). There was no significant difference in the operation time, cases with indwelling drainage tube, diseases pathological type, postoperative white cell count, postoperative neutrophil percentage between the two groups ( t=1.66, χ2=2.33, 0.84, t=?0.71, 1.66, P>0.05). (3) Postoperative complica-tions. Postoperative complications occurred in 7 of the 61 patients in the open group and 5 of the 121 patients in the laparoscopic group. There was no significant difference in the postoperative complications between the two groups ( χ2=2.46, P>0.05). (4) Follow-up. Of the 182 patients, 115 cases including 35 cases in the open group and 80 cases in the laparoscopic group were followed up for 12(range, 3?24)months. During the follow-up, 1 case of the 35 patients in the open group had abdominal pain and jaundice, which was diagnosed as choledocholithiasis. The patient was improved after stone removal with endoscopic retrograde cholangiopancreatography. Two cases of the 35 patients in the open group had upper abdominal pain with fever and were improved after anti-infection treatment. Of the 80 patients in the laparoscopic group, 1 case had upper abdominal pain and 1 case had dyspepsia and anorexia, respectively. The two cases were improved after symptomatic treatment. Conclusions:Patients with ACC in the high altitude area of Tibet have high ratio of preoperative complications, long diseases history and high incidence rates of pyogenic perforation of the gallbladder. Patients with ACC in the high altitude area undergoing LC is safe and effective. Compared with open cholecystectomy, LC have less volume of intraoperative blood loss, faster postoperative recovery and shorter duration of postoperative hospital stay.