Objective: To evaluate the feasibility of a V-shaped incision in the resection of a superficial parotid gland benign tumor by comparison with a modified Blair incision. To provide a basis for evaluating the clinical application value of the V-shaped incision. Methods: This study was reviewed and approved by the ethics committee, and informed consent was obtained from the patients. Data from 61 patients with a benign tumor on the superficial parotid gland who had surgery at People’s Hospital of Xinjiang Uygur Autonomous Region from September 2021 to September 2023 were collected and analyzed. The maximum diameter of the tumor included in the patient should not exceed 4 cm. The patients were divided into two groups based on the different surgical incisions: a V-shaped incision group (29 cases) and modified Blair incision group (32 cases). Several comparisons were made between the group: operation time; postoperative drainage volume; facial nerve function, pain, and complication in the operation area; and aesthetic effect of the surgical incision. The patients were followed up for 6 months. The 61 patients were further divided into groups based on the locations of the tumors: tumors around the earlobe and tumors in the lower pole of the parotid gland. Results: There were no significant differences in operation time, postoperative House-Brackmann grading system (HBGs) facial nerve function score, and visual analogue scale (VAS) pain score between the two groups (P>0.05). The postoperative drainage volume and Vancouver scar scale (VSS) score of the V-shaped incision group were higher than the modified Blair incision group (P<0.05). The incidence of great auricular nerve numbness was lower in the V-shaped incision group than the modified Blair incision group (P<0.05). The operation time of the V-shaped incision applied to excise the tumor around the earlobe was shorter than the modified Blair incision (P<0.05). Conclusion The V-shaped incision is a concealed facial incision, surgeons should be aware that some patients who receive this incision have a large amount of postoperative drainage and the retroauricular region is prone to scar hyperplasia.

Objective: To investigate the trends in incidence and mortality of thyroid cancer in cancer registration areas of Xinjiang Uygur Autonomous Region from 2016 to 2020 and its epidemiological status in 2020, so as to provide the basis for improving prevention and control measures for thyroid cancer. Methods: The data of thyroid cancer incidence and mortality from 2016 to 2020 in four cancer registration areas of Xinjiang Uygur Autonomous Region were collected through the Tumor Registry. The crude incidence and crude mortality were calculated. The Chinese population-standardized rate and world population-standardized rate were calculated using the age structure of the standard population from the Fifth National Population Census in 2000 and Segi's world standard population. The incidence and mortality characteristics of thyroid cancer in different genders and ages in 2020 were described. The trends in the Chinese population-standardized incidence and mortality of thyroid cancer in Xinjiang Uygur Autonomous from 2016 to 2020 were assessed using the average annual percent change (AAPC). Results: In 2020, the crude, Chinese population-standardized and world population-standardized incidences of thyroid cancer in Xinjiang Uygur Autonomous Region were 32.91/100 000, 26.99/100 000, and 25.53/100 000, respectively. The crude, Chinese population-standardized and world population-standardized mortalities of thyroid cancer were 1.25/100 000, 0.96/100 000, and 0.98/100 000, respectively. The Chinese population-standardized incidence and mortality of thyroid cancer in females were 2.44 times and 2.20 times those in males, respectively. The crude incidence of thyroid cancer was increased after age of twenty years, with a peak at age of 55 to 60 years (76.73/100 000) before rapidly declining. In contrast, the crude mortality remained low across all age groups, with the highest rate observed at age of 70 to 75 years (13.70/100 000). From 2016 to 2020, the Chinese population-standardized incidence and mortality of thyroid cancer showed no significant changes (both P>0.05). Conclusions From 2016 to 2020, the trends in incidence and mortality of thyroid cancer in cancer registration areas of Xinjiang Uygur Autonomous Region were stable. The disease burden of thyroid cancer was higher in females than in males. The crude incidence first rised and then declined with age, peaks at age of 55-<60 years.

Objective:To compare the variability of midpalatal suture maturation ratio of skeletal class Ⅰ malocclusion adults between genders,among positions and vertical skeletal patterns.Methods:173 skeletal class Ⅰ malocclusion adult patients were included and divided into 6 groups according to GoGn-SN Angle and gender:dolichofacial group(male 22,female 24)with GoGn-SN＞37.7°,me-sofacial Group(male 30,female 33)with 27.2°≤GoGn-SN≤37.7° and brachyfacial group(male 33,female 31)with GoGn-SN＜27.2°.The midpalatal suture maturation ratio in the corresponding area of anterior,medial and posterior region were measured and calculated by Mimics 21.0 software,the overlap of the anterior nasopalatine canal with the measurement site was recorded.Results:In the comparison of different genders,there was a statistically significant difference between males and females in the brachyfacial an-terior region(P＜0.001).In the comparison of different positions,except the females among the anterior,middle and posterior regions in brachyfacial group(P＞0.05),there were statistical differences in the fusion degree of the other parts of the palate suture(P＜0.05),and it gradually decreased from the posterior region to the anterior region.In the comparison of different vertical skeletal pat-terns,there was no statistical difference except the difference between the mesofacial and brachyfacial and dolichofacial groups in the middle area of males(P＞0.05),and the difference was significant among brachyfacial,dolichofacial and mesofacia groups in the ante-rior area of females(P＜0.05).Rates of anterior nasopalatine duct influence measurements were statistically significant in the compari-son between dolichofacial and brachyfacial males,and between brachyfacial males and brachyfacial females(P＜0.05),the remainder was not statistically significant(P＞0.05).Conclusion:In adult patients,the palatal suture is not completely fused,and palatal mi-croimplant anchorage should be avoided in the midpalatal suture.

BACKGROUND:Percutaneous vertebroplasty has become the main treatment method for osteoporotic vertebral compression fractures due to its advantages of convenient operation and low trauma.However,the optimal bone cement-vertebral volume ratio has not been determined. OBJECTIVE:To investigate the effect of bone cement-vertebral volume ratio on percutaneous vertebroplasty for osteoporotic vertebral compression fractures. METHODS:The clinical data of 100 patients with single-stage osteoporotic vertebral compression fractures admitted to Xinjiang Bazhou People's Hospital from July 2019 to July 2022 were retrospectively analyzed.All patients received percutaneous vertebroplasty.According to the bone cement-vertebral volume ratio,they were divided into the low volume group(15%≤ratio≤20%)and the high volume group(20%0.05).The vertebral anterior margin height in the low volume group was lower than that in the high volume group at 3 days and 1 year after surgery(P<0.05).The Cobb angle of the injured vertebrae in the low volume group was higher than that in the high volume group at 3 days and 1 year after surgery(P<0.05).(2)There were 10 H-type and 40 O-type bone cement distributions in the low volume group.There were 36 H-type and 14 O-type bone cement distributions in the high volume group,and there was no significant difference in bone cement distributions between the two groups(P<0.05).The bone cement leakage rate in the high volume group and low volume group was 10%and 6%,respectively.(3)It is indicated that both low and high bone cement-vertebral volume ratios can improve postoperative pain and functional dysfunction,but high bone cement-vertebral volume ratio can improve the morphological recovery of injured vertebral,which may be related to the fact that the distribution of bone cement in this group is more H-type.

Objectives:To investigate the clinical characteristics of noncontiguous spinal tuberculosis and the efficacy and prognosis of one-stage posterior debridement,bone graft fusion and internal fixation for the treat-ment of noncontiguous spinal tuberculosis.Methods:The clinical data of 31 patients with noncontiguous spinal tuberculosis treated in our hospital between July 2016 and May 2022 were retrospectively analyzed,in-cluding 18 males and 13 females,aged 49.5±27.5 years.There were 24 cases with 2 lesions and 7 cases with 3 lesions.Responsible vertebrae were clarified,and surgical lesions,fusion segments,and internal fixation methods were determined for each patient,so as to develop individualized surgical plans.The patients were followed up for 29.7±14.7 months(15-85 months).The operative time,intraoperative blood loss,and intraoper-ative and postoperative complications were recorded.Erythrocyte sedimentation rate(ESR)and C-reactive pro-tein(CRP)were examined and recorded before operation,at 1 month,3 months,and 1 year after operation,and at the last follow-up.Visual analogue scale(VAS)was used to evaluate the pain before operation,at 1 week,1 month,3 months,1 year after operation and at the last follow-up.Cobb angle was measured before operation,at 1 week after operation,and at the last follow-up.The American Spinal Injury Association(ASIA)classification was recorded before operation and at the last follow-up.Bridwell bone healing criteria were used to evaluate postoperative tuberculosis activity,symptom improvement,deformity correction,and bone healing at the last follow-up.Results:Among the 31 patients,20(65.4％)had only one lesion(65.4％),23(74.2％)were admitted to the hospital with pain as the main complaint,15(48.4％)had only pain symptoms during the course of the disease,11 cases(35.5％)had only one lesion with pain symptoms,and 18(58.1％)patients had at least one lesion missed at the initial diagnosis.All the patients were successfully operated.The operative time was 280.0±52.2min(165-330min),and blood loss was 567.7±332.0mL(150-1000mL).There were 4 cases of cerebrospinal fluid leakage and 3 cases of incision infection after operation,which were cured after symptomatic treatment.All foci of tuberculosis were cured without recurrence or retransmission.At pre-operation,1 month,3 months,1 year after surgery,and at the last follow-up,ESR was 41.5±26.3mm/h,16.3±13.4mm/h,12.5±6.3mm/h,11.4±5.2mm/h,and 9.2±3.1mm/h,and the levels of CRP were 32.8±23.2mg/L,7.3±5.6mg/L,6.2±4.1mg/L,5.1±3.7mg/L,2.8±2.3mg/L,which were both significantly lower after operation than those before operation(P＜0.05).The VAS score was 6.4±2.4,2.4±1.7,2.3±1.3,1.6±0.9,0.9±0.7,and 0.4±0.3 before operation,at 1 week,1 month,3 months,1 year after operation,and at the last follow-up,which was significantly improved after operation when compared with that before operation(P＜0.05).The Cobb angle was 25.7°±4.9° before operation,15.4°±2.1° at 1 week after operation,and 17.1°±2.3° at the last follow-up,and there were significant differences between the postoperative angles and preoperative angles(P＜0.05).Among the 10 patients with preoperative neurological impairment,1 patient with preoperative grade A recovered to grade C at the last follow-up.Among the 4 patients with preoperative grade B,1 patient recovered to grade C and 3 to grade D.Of the 5 patients with preoperative grade C,2 recovered to grade D and 3 to grade E.All 42 bone graft lesions achieved bone fusion at 6-12 months after operation.At the last follow-up,34 lesions healed in Bridwell grade Ⅰ and 8 in Bridwell grade Ⅱ.Conclusions:For patients with noncontiguous spinal tuberculosis,one-stage posterior debridement,bone graft fusion and internal fixation is safe and efficient after determining responsible vertebrae and lesion features,which can obtain satisfactory results.

Objective:To investigate the relationship between self-control and obsessive-compulsive symptoms(OCS), and the mediating role of procrastination and anxiety in this relation.Methods:Totally 6 367 Chinese college students were recruited to complete the Chinese version of the self-control scale, the Aitken procrastination inventory, and the symptom checklist-90.Descriptive analysis and Pearson correlation were carried out using SPSS 23.0.Mplus 7.4 was used to test the model fit.The mediating effects were tested using the Bootstrap method.Results:Pearson correlation analysis showed that there were significant correlations among self-control, procrastination, anxiety, and obsessive-compulsive symptoms ( r=-0.71-0.78, P<0.01). Mediation modeling analysis showed that the total indirect effect of self-control on OCS was -0.303, accounting for 63.13% of the total effect.The mediating effect of procrastination between self-control and OCS was -0.045, accounting for 9.38% of the total effect.The mediating effect of anxiety between self-control and OCS was -0.239, accounting for 49.79% of the total effect.Moreover, the chain mediating effect of procrastination and anxiety between self-control and OCS was also significant, with an effect value of -0.019, accounting for 3.96% of the total effect. Conclusion:Self-control can negatively predict OCS, procrastination and anxiety play a chain mediating role in the effect of self-control on OCS.

Objective To analyze the risk factors for recurrence of primary spontaneous pneumothorax and to establish a prediction model.Methods The clinical data of 803 patients clearly diagnosed with primary spontaneous pneumothorax in the First Affiliated Hospital of Xinjiang Medical University from January 2010 to January 2021 were retrospectively analyzed,and 70％of the patients were randomly included in the modeling group(562 patients)and 30％in the validation group(241 patients).Risk factors for recurrence were analyzed by univariate and multivariate Cox regression using R 4.2.1 software,and a Nomogram prediction model was developed.Receiver operating characteristic curves were plotted,and the area under the curve(AUC)was calculated to assess model discrimination,and calibration curves were plotted to assess model calibration.Results The overall recurrence rate was 22.67％(182/803).Multivariate Cox regression analysis showed that age,smoking index,dystrophic severity score and treatment regimens were independent risk factors for recurrence of primary spontaneous pneumothorax,and the AUC of the Nomogram prediction model was 71.7％(95％CI 64.1-79.2),with high predictive efficiency.Conclusion This recurrence prediction model of primary spontaneous pneumothorax can assist clinicians to accurately assess the risk of recurrence in individual patients.

Objective: To examine the associations of arsenic and estrogen levels with the risk of papillary thyroid carcinoma, so as to provide insights into prevention of papillary thyroid carcinoma. Methods: Totally 57 patients with papillary thyroid carcinoma admitted to two tertiary hospitals in Urumqi, Xinjiang Uygur Autonomous Region in 2018 were selected as the case group, while 57 subjects with normal thyroid functions during the same period were selected as the control group. Subjects' gender, age, ethnicity, occupation and medical history of thyroid disease were collected using questionnaire surveys. Serum dimethyl arsenic acid (DMA) and monomethyl arsenic acid (MMA) were determined using high-performance liquid chromatography (HPLC) coupled to hydride generation-atomic fluorescence spectrometry (HG-AFS), serum thyroid hormone (TSH) by radioimmunoassay, estradiol (E2) by enzyme-linked immunosorbent assay and estrogen receptor ERα and ERβ by western blotting. The associations of arsenic and estrogen levels with the risk of papillary thyroid carcinoma were evaluated using a multivariable logistic regression model. Results: There were 16 males (28.07%) and 41 females (71.93%) in the case group, with a mean age of (42.63±11.01) years, and there were 21 males (36.84%) and 36 females (63.16%) in the control group, with a mean age of (40.89±11.30) years. There were no significant differences between the case and control groups in terms of age (χ2=0.373, P=0.542), gender (χ2=1.000, P=0.317) or ethnic composition (χ2=0.291, P=0.590). The serum levels of TSH [2.85 (1.61) vs. 2.45 (1.79) μmol/L], E2 [74.93 (120.44) vs. 61.60 (37.35) pmol/L], ERα [1.49 (1.13) vs. 0.70 (0.31)], ERβ [1.59 (0.55) vs. 0.72 (0.36)], DMA [116.02 (100.48) vs. 32.33 (56.06) μg/L] and MMA [56.92 (47.90) vs. 27.90 (24.99) μg/L] were all significantly higher in the case group than in the control group (Z=-2.414, -2.292, -4.923, -5.167, -5.448 and -4.019, all P<0.05). Multivariable logistic regression analysis showed DMA (OR=1.013, 95%CI: 1.003-1.024) and E2 levels (OR=1.020, 95%CI: 1.004-1.036) were associated with the risk of papillary thyroid carcinoma. Conclusion Increased arsenic load and elevated estradiol levels may be associated with the risk of papillary thyroid carcinoma.

Objective:To study the correlation between umbilical artery blood gas (UABG) and Apgar score of neonates and the risk factors of low base excess (BE) in UABG.Methods:From March 2017 to September 2020, newborns without congenital malformation born in three hospitals were prospectively enrolled and received UABG analysis. According to their Apgar score, the infants were assigned into low Apgar score group and normal Apgar score group. According to BE of UABG, they were assigned into BE<-12 mmol/L group and BE≥-12 mmol/L group. The UABG indexes including abnormal pH and BE between the low Apgar score group and the normal Apgar score group were compared. The risk factors of low BE in UABG were analyzed.Results:A total of 1 351 qualified samples were included including 208 cases in low Apgar score group and 1 143 cases in normal Apgar score group. 115 cases were in BE <-12 mmol/L group and 1 236 cases in BE ≥-12 mmol/L group. The incidences of abnormal pH and BE values in the low Apgar score group were higher than the normal Apgar score group [50.0% (104/208) vs. 13.8% (158/1 143), 34.6% (72/208) vs. 3.8% (43/1 143)]. The pH and BE values of UABG were positively correlated with 1 min Apgar score ( r=0.402, 0.398, P<0.001). Multivariate logistic regression analysis indicated that the risk factors for BE<-12 mmol/L were Ⅲ° contaminated amniotic fluid ( OR= 3.155, 95% CI 1.972~5.025, P<0.001) and placental abruption ( OR = 3.968, 95% CI 1.992~7.874, P <0.001). Conclusions:The pH and BE values of neonatal UABG are positively correlated with 1 min Apgar score. Ⅲ° contaminated amniotic fluid and placental abruption are risk factors of low BE in UABG.

Objective:To summarize the genetic etiology, clinical characteristics and outcomes of neonatal hypotonia in the early stage of NICU, to provide basis for clinicians to early identify diseases and choose reasonable treatments.Methods:The clinical data of neonates with hypotonia admitted to the Department of Neonatology of Children′s Hospital of Xinjiang Uygur Autonomous Region and People′s Hospital of Xinjiang Uygur Autonomous Region from July 2017 to July 2020 were analyzed.Results:A total of 49 children were enrolled in the study, all clinically manifested as unexplained hypotonia, accompanied by special appearance 29 cases(59.18%), metabolic abnormality 18 cases(36.73%), and cranial imagin abnormality 23 cases(46.93%). After gene sequencing a, total of 22(44.89%)patients were confirmed.Thirteen (26.53%) of them were copy number variation, and gene mutation in nine cases(18.36%). The oldest age of these patients was 3 years and 2 months now, while the youngest was 4 months.A total of 16 patients were dead(32.65%). Four (8.16%) patients were lost to follow-up.At present, eighteen (62.07%) patients had mental retardation, and eleven (37.93%) of whom still existed severe physical retardation.Conclusion:We could conduct genetic testing in NICU to improve the diagnosis rate of neonates with unexplained hypotonia, which have high rate of adverse events.Neonates with a clear diagnosis should be treated promptly and give the genetic counseling to reduce the risk for the next children.