OBJECTIVE:To observe the effects of praeruptorin A for brachial plexus block anesthesia in patients receiving up-per extremity fractures surgery. METHODS:68 patients receiving upper extremity fracture surgery were randomly divided into trial group and control group with 34 cases in each group. Trial group was given praeruptorin A 0.2 mg/kg intravenously before brachial plexus block anesthesia,and control group was given equivalent volume of 0.9% sodium chloride injection. The anesthesia induc-tion time,the pain reflex disappearance time and postoperative recovery time were compared between 2 groups,and hemodynamic parameters and RPP were recorded in 2 groups before anesthesia (T0),immediately after anesthesia (T1),5 min after anesthesia (T2),10 min after anesthesia (T3),20 min after anesthesia (T4) . RESULTS:Anesthesia induction time,pain reflex disappear-ance time and postoperative respiratory recovery time in trial group were all significantly shorter than in control group,with statisti-cal significance(P<0.05). SBP,DBP,HR and MAP of trial group were lower than those of control group at T2,T3,T4,with sta-tistical significance(P<0.05). RPP of trial group was significantly lower than that of control group at T1,T2,T3 and T4,with sta-tistical significance (P<0.05). CONCLUSIONS:For brachial plexus anesthesia of upper extremity fractures surgery,preoperative application of praeruptorin A can shorten anesthesia induction time,pain reflex disappearance time and postoperative respiratory re-covery time,and reduce the fluctuation of hemodynamics.

Objective To observe effect of Liqiao Yizhi Decoction (Decoction for inducing resuscitation to improve cognition) on mild cognitive impairment (MCI). Methods Treatment group (32 cases) was treated with Liqiao Yizhi Decoction,and the control group was treated by Piracetam. Memory,congnition and related scores of both groups were observed. Results Both groups were improved in the scores of cognition,memory and behavioral ability of MCI patients (P

Objective To develop a questionnaire which measures leisure satisfaction for university students. Methods Initial items of the questionnaire were compiled according to theoretical analysis and interviews. 400 college students were recruited to respond to the items. The explorative factor analysis was used to decide the final items and dimensions. Another 350 college students were recruited to respond to the decided questionnaire and a criterion questionnaire. Results The leisure satisfaction questionnaire consisted of three dimensions : Relaxing Satisfaction (RS) , Contacting Satisfaction (CS), and Transcend Satisfaction (TS). Internal consistency (Cronbach' sα) of the three dimensions were 0.86,085 and 0. 84 and the Cuttmann Split-half Coefficient were 0.76,0.83 and 0.86. The cumulative explanation of the variance was 58.956%. A confirmative factor analysis revealed that the three-dimension model was proper(x2/df = 1. 74, NFI = 0.88, NNFI = 0.93, CFI = 0.94, GFI =0.93,AGFI=0.91,IFI=0.94,RMSEA =0.048). The leisure satisfaction Questionnaire was positively related to freedom satisfaction( r = 0.20 ～ 0. 30, P < 0.01). Conclusion The leisure satisfaction questionnaire for university students has satisfactory psychometric characteristics.

Objective To evaluate the significance of fibreoptic bronchoscopy combined with percutaneous pneumocentesis in the diagnosis of peripheral pulmonary lesions.Methods 269 patients with peripheral pulmonary diseases were diagnosed with fibreoptic bronchoscopy biopsy combined with bronchial brush biopsy.In 89 out of the 269 patients no positive findings were obtained,because the lesions were located in the lung hilum,medial sphere or mesosphere,when X-ray guided fibreoptic bronchoscopy biopsy combined with bronchial brush biopsy were employed.In 77 out of the 89 patients positive fingings were still lacking,as their lesions were located in the mesosphere or peripheralzone,when X-ray guided percutaneous pneumocentesis biopsy was used.In 70 out of the 77 patients,positive fingings were lacking,as their lesions were just beneath the chest wall,when B-ultrasonography guided percutaneous automatic elastic biopsy was employed.Results 276 times of fibreoptic bronchoscopy biopsy combined with bronchial brush biopsy were performed in 269 patients,final diagnosis was obtained in 82 of them,with a diagnostic rate of 30.5%;94 times of X-ray guided fibreoptic bronchoscopy biopsy combined with bronchial brush biopsy were performed in 89 patients,and final diagnosis was obtained in 66 patients,with a diagnostic rate of 74.2%;85 times of X-ray guided percutaneous pneumocentesis biopsy were performed in 77 patients,final diagnosis was obtained in 52,with a diagnostic rate of 67.5%;79 times of B-ultrasonography guided percutaneous automatic elastic biopsy were performed in 70 patients,final diagnosis was obtained in 49,with a diagnostic rate of 70.0%.A final diagnosis was made in a total of 249 patients,with a diagnostic rate of 92.6% when 4 methods were used in combination.Conclusion Combined use of fibreoptic bronchoscopy with percutaneous pneumocentesis biopsy may remarkably raise the diagnostic rate in the patients with peripheral pulmonary diseases,and is worth to be recommended for general use in clinical work.

Objective To test the accuracy of a three-dimensional dose verification system CompassR,which reconstructing dose distribution based on measurements and independent dose calculation,and to evaluate the feasibility of its application in clinical intensity-modulated radiotherapy (IMRT) quality assure.Methods A set of square-wave chart patterns of 2 cm,1 cm and 0.5 cm gaps was designed and 11 completed IMRT lung plans were selected for the test.EDR2 film and the ionization chamber were used for test and verifying of plane dose distribution and some special points dose of CompassR.The IMRT phantom plans were verified by CompassR with three-dimension based on anatomical information.Parameters including the volume γ pass rate and the average dose deviation were tested using dose volume histograms.Results In square-wave chart patterns test,the dose distribution reconstructed and calculated by CompassR coincided with the measurement using film.The γ pass rates (3％/3 mm,2％/2 mm) exceeded 90％.When the width of field is 0.5 cm,the γ pass rate was a little lower on account of the penumbra zone.Compared to the dose distribution profile which was measured by film,the maximum deviations of the dose distribution profile which was reconstructed and calculated by CompassR were 3.21％ and 2.70％.The absolute dose deviation of specific point in the IMRT plans was less than 3％,the maximum deviation occurred in the lung.Compared to film,the averageγpass rates on the isocenter plain in IMRT plan were (94.65 + 1.93)％ (3％/3 mm) which was reconstructed by CompassR.In three-dimensional dose verification,the volume γ pass rates of targets and risk organs were not less than 90％,and the deviation of average dose was less than 1％.Conclusions Accuracy of the tested system satisfies the demand of IMRT dose verification.CompassR could provide information of volumetric dosimetry and anatomical location of dose error,which is benefit for evaluating the clinical value of verification result.

Administration, Rectal ; Adolescent ; Adult ; Aged ; Chronic Disease ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Male ; Middle Aged ; Phytotherapy ; Prostatitis ; drug therapy ; Suppositories

Ahigh-resolutionmethodforhumanleukocyteantigen-B(HLA-B)genotypingwasestablished based on the optimized polymerase chain reaction, cloning and sequencing technology. The exon2 and exon3 of HLA-B gene were amplified with primers based on the HLA-B gene sequence. These produced heterozygous alleles were effectively cloned into plasmid DNA based on the principle of plasmid incompatibility, and were followed by bacterial culture. Then Sanger sequencing was carried out and after analyzing the result by software ClustalX2 and IMTG/HLA database comparison, the HLA-B genotype of the samples was achieved. Seven clinical samples were detected, and the results were consistent with those of PCR-SBT genotyping method. The method was cost-effective, high-resolution and it did not require technical software. The use of universal primers simplified the cumbersome design and optimization process of specific primers.

Objective To study the clinical application of Compass (R) system,a novel 3D quality assurance system for the verification of esophageal carcinoma intensity-modulated radiotherapy (IMRT) plan.Methods 12 esophageal carcinoma IMRT plans were optimized with Eclipse 8.6 treatment planning system (TPS),and then Compass (R) reconstructed 3D dose distributions with the patient anatomy.Comparison was performed among the reconstructed and calculated with TPS,Dose-volume parameters (γ pass rate、average dose deviation) to the planning target volume (PTV) and critical structures were quantitative valuated.Furthermore two-dimensional dose verification were performed use MatriXX,γ pass rate were evaluated with 3％/3 mm criteria.Results The γ pass rate of actual gantry angle was found generally declined seemingly compared with 0 degree gantry angle in two dimensional verification,difference was statistically significant (P =0.018-0.001).In 3D dose verification,the γvolume of PTV were exceed 93％,the deviation of D95,D50,D2 were less than 3％;The γvolume of lungs and heart were exceed 95％,the average dose deviation were less than 3％;The γ pass rate of spinal cord and trachea were exceed 98％.The independent check verified more conformed with the TPS calculated.Dose deviations appeared in the radiation field edge area.Conclusions 3D dose verification can provide more information to comprehensively evaluate the plan which is benefit for evaluating the clinical value of verification.

Objective To investigate the application of a self-made positioning device in CT-MRI image fusion in patients with laryngeal tumor,as well as the precision of image fusion and the changes in target volume delineation after fusion.Methods A total of 10 patients with laryngeal cancer were enrolled,and a self-made positioning device was used to collect CT and MRI images in a fixed position.These images were fused by mutual information combined with manual fusion.The precision of image fusion was assessed by the positional deviation of internal and external markers and degree of gross tumor volume (GTV) overlap (PCT-MRI) between CT and MRI images.GTV was contoured based on CT images (VCr),MRI images (VMRI),and fused images (VCT+MRI).The overlapped volume of VCT and VMRI(VCT-MRI) Was calculated,and the target volume was analyzed and compared.Results The positional deviations of three external markers in the three directions were 0.996±0.222 mm,1.146±0.291 mm,and 1.368±0.298 mm (P=0.000),respectively,while those of the internal markers were 0.476±0.151 mm,0.561±0.083 mm,and 0.724± 0.125 mm (P=0.000),respectively.VCT,VMRI,VCT+MRI,and VCT-MRI were 26.355±7.876 cm3,33.556± 7.407 cm3,40.036±7.627 cm3,19.875±8.588 cm3(P=0.000),respectively.PCT-MRI was 73.7％±9.8％.Conclusions The self-made positioning device can improve the consistency of position during the collection of CT and MRI images,and fused CT-MRI images can provide more information and improve the precision of target volume delineation.

ObjectiveTo compare the accuracy of enhanced dynamic wedge (EDW) models of adaptive convolution algorithm (ACA) in Pinnacle3 9.0 and anisotropic analytical algorithm (AAA),and pencil beam convolution (PBC) algorithms in Eclipse7.3 treatment planning systems (TPS).MethodsTo evaluate the accuracy of the three algorithm models,we compared actual measurement values with TPS calculation values of EDW wedge factors under for different fields in which Varian-21EX 6 MV X-ray was applied,and also compared the actual dose distribution profile with that of TPS.ResultsThe deviations of EDW wedge factors of symmetry fields and asymmetric fields are within 2.8％ and 19.4％ for ACA in Pinnacle3 9.0.Meanwhile,the deviations are 1.0％ and 2.0％ for AAA,1.2％ and 3.0％ for PBC in Eclipse7.3.The deviations between measurement and calculation of all fields profile for ACA is within 3％ and within 2.7％ for AAA within 4.0％ for PBC in wedge direction.For the dose distributions,we evaluated the pass rates of three algorithms using gamma analysis.The gamma pass rates among all the three algorithms in symmetry and asymmetric fields are above 87％ and 85％ respectively.After the removal of the penumbra zone,the pass rates among all the three algorithms are above 96％ in symmetry fields,and above 95％ in asymmetric fields,respectively.Conclusions AAA and PBC algorithms in symmetric and asymmetric fields can meet the need of clinical applications.While,wedge factor of ACA should not be used in clinical due to its greater error in asymmetric fields.