21 8 patients with acute pulpitis were randomly divided into 2 groups.1 09 cases were treated by Depulpin inactivation agent (group DI)for emergency management,another 1 09 cases were treated by pulp drainage with phenol camphor cotton ball(group CP).The effective analgesia rate of DI and CP group was 95.4% and 69.7% respectively(P<0.001 ).

Whennearinfraredspectroscopyisappliedtoon-linemonitoringandcontroloftobaccoflavors,the variation in temperature can severely deteriorate the predictive performance of near infrared spectroscopic calibration models and results in a significant increases of the root mean square error value for the main constituents in syrup samples from 2. 4% to 29. 0%. In this paper, near infrared spectroscopy has been incorporated with an advanced calibration transfer method-loading space standardization to effectively eliminate the deteriorate effects of temperature variation on quantitative results and finally realize the fast and accurate on-line quantitative monitoring and control of tobacco flavors. The root mean square error value for the main constituents in syrup samples is successfully retained at a satisfying low level of 3 . 8%. The results of this paper will provide technical support for the preparation, preservation and use of tobacco flavors, and realize on-line process quality control of cigarettes.

ObjectiveTo establish a method for content determination of total iridoid compounds and baldrinal and 11-ethoxyviburtinal from Valerianae Jatamansi Rhizoma et Radix; To determine the contents of total iridoid compounds and baldrinal and 11-ethoxyviburtinal in Valerianae Jatamansi Rhizoma et Radix from three medicinal origins.Methods UV spectrophotometry was applied, 11-ethoxyviburtinal (cyclopentane-pyran-7-formaldehyde, 4-ethoxy methyl) was set as the reference substance, and the content of total iridoid compounds was determined at 288 nm. HPLC method was used to simultaneously determine the contents of baldrinal and 11-ethoxyviburtinal. The HPLC analysis was performed on a Phenomenex Luna C18 column (250 mm×4.6 mm, 5μm). The mobile phase was composed of acetonitrile-water in gradient elution at a flow rate of 0.95 mL/min. The detection wavelength was 288 nm and the column temperature was 30℃.Results The total iridoid compounds, baldrinal and 11-ethoxyviburtinal were in good linearity within the ranges of 2.088–14.616μg/μL, 74.88–224.64μg, and 41.6–249.6μg, respectively. This method was precise, and with good repeatability, stability and recovery rate.Conclusion The method is accurate, simple, rapid, which can be used for the quality control of Valerianae Jatamansi Rhizoma et Radix.

BACKGROUND:Open reduction pedicle screw fixation for thoracolumbar fracture could obtain satisfactory effects, and has been extensively used. However, it has potential risk during and after repair. Minimaly invasive percutaneous pedicle screw technique minimizes the trauma and complications of soft tissue. It remains poorly understood which is better minimaly invasive percutaneous or conventional open pedicle screw fixation for the repair of thoracolumbar fracture. OBJECTIVE:To perform quality evaluation and meta-analysis on curative effect and postoperative complications of minimaly invasive percutaneous and conventional open pedicle screw fixation in the treatment of thoracolumbar fractures. METHODS:A detailed search of several electronic databases, including Cochrane Library, PubMed, WanFang, CNKI, VIP and CBM, was undertaken. Simultaneously,Chinese Journal of Orthopaedics, Chinese Journal of Orthopaedic Trauma, and Chinese Journal of Trauma were checked by hand to identify controled trials regarding minimaly invasive percutaneous and conventional open pedicle screw fixation in the treatment of thoracolumbar fractures published from inception to 2015, and the references of the included studies were checked. According to inclusion and exclusion criteria, references were screened, data were extracted and quality was evaluated by four investigators independently. Meta-analysis was conducted using RevMan 5.2 software. The quality of references of the included controled trials was assessed with CONSORT statement and some surgery clinical evaluation indexes. RESULTS AND CONCLUSION: We included 28 studies, including 25 randomized controled trials/quasi-randomized controled trials and 3 retrospective comparative studies, with 1 285 patients. Meta-analysis results demonstrated that compared with the conventional open pedicle screw, minimaly invasive percutaneous pedicle screw fixation could significantly reduce operation time, blood loss, hospital stays, postoperative complication rate and height loss (P < 0.05). No significant difference in postoperative pain grade was detected between them (P > 0.05). These results indicate that minimaly invasive percutaneous pedicle screw fixation for thoracolumbar fracture was safe and reliable, had smal trauma, less blood loss, rapid recovery, short hospital stay, and less postoperative complications. Nevertheless, methods and results of most studies are not detailed enough. We suggested reporting randomized controled trials according to related standards in order to improve the report quality and authenticity of randomized controled trials.

Objective To investigate the clinical presentation,diagnosis,and surgical management of anti-N-methyl-D-aspartate (NMDA) receptor encephalitis.Methods One case of anti-NMDA receptor encephalitis in a previously healthy 17-year-old female related to the development of NMDA receptor autoantibodies triggered by an ovarian teratoma was reported.The related literature was reviewed and the clinical feature was summarized.Results Removal of the ovarian teratoma combined with intravenous immuneglobulin and corticosteroid proved curative with eventual resolution of the paraneoplastic disease process and associated psychiatric symptoms.Conclusion Increasingly,reports of anti-NMDA receptor encephalitis associated with ovarian teratomas,as well as a novel assay to measure these antibodies suggest an etiology for this disease process that may be amenable to prompt surgical excision.

Objective To explore the prognostic factors of middle and advanced esophageal neoplasms treated by traditional Chinese medicine combined with radiotherapy.Methods A total of 462 esophageal neoplasms patients treated by traditional Chinese medicine combined with radiotherapy from March 2009 to March 2012 in Civil Administration Hospital of Hebei Province were retrospectively analyzed.The overall median survival time and the survival rate of 1,3 and 5 years were calculated by using life table.Log-rank test was used for single-factor analysis and Cox model was used for multiple-factor analysis.Results The median survival time of 462 esophageal neoplasm patients was 24.2 months (12.9-36.6 months).The survival rate of 1,3 and 5 years was 80.3 ％,30.6 ％ and 10.5 ％ respectively.Single-factor analysis showed that the age (x2 =89.773,P =0.000),tumor diameter (x2 =102.373,P =0.000),clinical staging (x2 =128.903,P =0.000),concomitant with other diseases (x2 =65.366,P =0.000) and the short term effect (x2 =64.948,P =0.000) were associated with prognosis of middle and advanced esophageal neoplasms treated by traditional Chinese medicine combined with radiotherapy.Multiple-factor analysis showed that the age (RR =1.625,95 ％ CI 1.251-2.111,P=0.000),clinical staging (RR =2.437,95 ％ CI 1.874-3.168,P=0.000),concomitant with other diseases (RR =1.1.628,95 ％ CI 1.278-2.076,P =0.000) and the short term effect(RR =1.865,95 ％ CI 1.594-2.182,P =0.000) were the independent prognosis factors for middle and advanced esophageal neoplasms treated by traditional Chinese medicine combined with radiotherapy.Conclusion Elderly patients,esophageal neoplasms in stage Ⅲ,concomitant with other diseases and poor short-term effect could influence the prognosis of the patients with middle and advanced esophageal neoplasms treated by traditional Chinese medicine combined with radiotherapy.

【Objective】 To evaluate the accuracy and safety of self-made iliac puncture guide in severe and rigid scoliosis （SRS） with Halo pelvic traction. 【Methods】 From January 2015 to May 2021， 22 patients with SRS were treated by the Halo pelvic traction. There were 9 males and 13 females， aged 14 to 28 years with an average of 17.6 years； cobb angle was 90° to 140° with an average of （108.80±13.42）°. According to the different methods of iliac puncture， they were divided into guide group （10 patients） in which the self-made guide device was used for iliac puncture and unarmed group （12 patients） in which the needle was punctured through the iliac bone with bare hands. One iliac needle was inserted into each iliac bone of each patient， and the total number of needles in this study was 44. The puncture times， deviation distance， operation time， degree of soft tissue injury， postoperative hospital stay and complications were compared and analyzed. 【Results】 There was no significant difference in age， gender， body mass， or cobb angle between the two groups. In the guide group the average puncture times was （2.50±0.55）， the offset distance was （0.50±0.07） cm， the operation time was （30.50±4.46） min， soft tissue injury was grade （1.83±0.75）， and postoperative hospital stay was （4.33±0.82） d. In the unarmed group the average puncture times was （4.00±0.76）， the offset distance was （2.30±1.20） cm， the operation time was （60.13±26.35） min， soft tissue injury was grade （3.38±1.19）， and postoperative hospital stay was （8.88±3.14）d. There were 2 cases of needle tract infection in both groups respectively. In the unarmed group， there were 2 cases of skin necrosis and 1 case of neurovascular injury. 【Conclusion】 The self-made iliac puncture guide in SRS with Halo pelvic traction can reduce the number of punctures， offset distance， shorten operation time， postoperative hospital stay and complications.

Threatened abortion is a common disease of obstetrics and gynecology and one of the diseases responding specifically to traditional Chinese medicine （TCM）. The China Association of Chinese Medicine organized experts in TCM obstetrics and gynecology， Western medicine obstetrics and gynecology， and pharmacology to deeply discuss the advantages of TCM and integrated Chinese and Western medicine treatment as well as the medication plans for threatened abortion. After discussion， the experts concluded that chromosome， endocrine， and immune abnormalities were the key factors for the occurrence of threatened abortion， and the Qi and blood disorders in thoroughfare and conception vessels were the core pathogenesis. In the treatment of threatened abortion， TCM has advantages in preventing miscarriages， alleviating clinical symptoms and TCM syndromes， relieving anxiety， regulating reproductive endocrine and immune abnormalities， personalized and diversified treatment， enhancing efficiency and reducing toxicity， and preventing the disease before occurrence. The difficulty in diagnosis and treatment of threatened abortion with traditional Chinese and Western medicine lies in identifying the predictors of abortion caused by maternal factors and the treatment of thrombophilia. Recurrent abortion is the breakthrough point of treatment with integrated traditional Chinese and Western medicine. It is urgent to carry out high-quality evidence-based medicine research in the future to improve the modern diagnosis and treatment of threatened abortion with TCM.