Objective To explore the treatment opportunity of mechanical ventilation for acute severe organophosphorus pesticide poisoning patients with respiratory failure.Methods According to the different indications of mechanical ventilation,115 acute severe organophosphorus pesticide poisoning patients with respiratory failure were divided into the observation group A (40 cases),the observation group B(38 cases)and the control group(37 cases).The cure rate,aspiration pneumonia incidence,duration of mechanical ventilation,length of hospital stay of the three groups were analyzed.Results The cure rate of the observation group A(97.5％) was significantly higher than that of the control group(83.4％)and the observation group B (92.1％) (P ＜ 0.05 or P ＜ 0.01) ;The aspiration pneumonia of the observation group(2 cases) was significantly less than that of the control group(8 cases)(P ＜ 0.05) ;The hospitalization time [(4.46 ± 0.51) d,(7.11 ± 0.83) d] and the duration of mechanical ventilation [(55.40 ± 5.24)h,(79.47 ± 2.44) h] of the observation group A and the observation group B were significantly shorter than those of the control group [(10.40 ± 1.12) d,(100.30 ± 2.15) h] (all P ＜ 0.01) ; The hospitalization time and the duration of mechanical ventilation of the observation group A [(4.46 ± 0.51) d,(55.40 ± 5.24) h] were significantly shorter than those of the observation group B [(7.11 ± 0.83)d,(79.47 ± 2.44)h] (all P ＜ 0.01).Conclusion Respiratory rate ≥30 times/min and ＜ 34 times/min or ≤ 10 times/min,or spontaneous breathing weakened,and blood gas analysis prompted hypoxemia(60 mm Hg ＜ PaO2 ≤ 70 mm Hg)is best opportunity of mechanical ventilation for acute severe organophosphorus pesticide poisoning patients with respiratory failure.

Objective To discuss the curative effect of arthroscopiclly assisted radiofrequency tenotomy of the sternocleidomastoid muscle for the treatment of congenital muscular torticollis in teenagers. Methods A total of 12 patients (right, 4 patients; left, 8 patients) were enrolled in the study. A 3-mm skin incision was made at the site 5 cm below the sternoclavicular joint. A dissector was inserted through the incision to perform blunt dissection subcutaneously until the attachment points of the sternocleidomastoid muscle. After a subcutaneous operative space 3 cm ? 3 cm in size was created, a 30? wide-angle arthroscope was placed. Another incision was located at the site 5 cm below the mid-clavicle for placing the bipolar radiofrequency probes (Arthrocare 2000). Under the assistance of arthroscopy, the sternocleidomastoid muscle was severed from the attachment at the both sides. Results The operation time was 15~30 min (mean, 20 min). No intraoperative hemorrhage or vascular and nervous injuries were observed. Follow-up for 5~10 months (mean, 7 months) in the 12 patients found normal appearance and no recurrence or diplopia. Conclusions Arthroscopiclly assisted radiofrequncy therapy for congenital muscular torticollis is characterized by simplicity of manipulation, micro-invasion, and satisfactory curative effect.

Objective To study the anatomic characteristics of Zuckerkandl's tubercle (ZT) and its clinical relevance as an anatomic landmark of the recurrent laryngeal nerve (RLN) in thyroid surgery.Methods This study involved 147 (106 with benign thyroid diseases and 41 with malignancies) patients who underwent thyroidectomy.ZT was measured and classified based on the Pelizzo classification.The relationship between ZT and the RLN and the relationship between the RLN and the inferior thyroid artery were recognized and classified.Results 233 (107 left and 126 right) thyroid gland lobes were dissected and ZT was identified in most patients (left in 93.5％ and right in 96.0％).The distribution of ZT according to grade was as follows:Grade 0,left 16.0％ and right 13.2％ ; Grade Ⅰ,left 32.0％ and right 27.3％ ; Grade Ⅱ,left 46.0％ and right 44.6％ ; Grade Ⅲ,left 6.0％ and right 14.9％.There was no significant difference on classification between the left-sided and right-sided ZTs.In terms of the relationship between the ZT and the RLN,it was classified as follows:Type A,left 92.9％ and right 93.3％ ; Type B:left 0 and right 0; Type C:left 7.1％ and right 6.7％.Similarly,there was no significant difference between the left sided and the right sided.The ZT grade was correlated with the course of the RLN:the higher the ZT grade was (that is,the greater the size of the ZT),the more often was the course of RLN behind the back of the ZT; the lower the ZT grade (that is,the smaller the size of the ZT),the more often was the course of RLN running by the lateral of the ZT.Considering the incidence of being dangerous type of RLN,the right sided (19.0％) was higher than the left sided (8.3％).The relationship between the ZT and the RLN does not relate to RLN course across the inferior thyroid artery.Conclusions As an important anatomic landmark,the ZT is essential for locating and dissecting the RLN during thyroid surgery,and its classification is a guide to RLN dissection and preservation.

Objective To investigate the expression and significance of syntaxin 8 (STX8) in non-small cell lung cancer (NSCLC),and analyze the relationship between STX8 expression and clinicopathological features of NSCLC.Methods Seventy samples of NSCLC and 70 samples of pericancerous tissues were collected for immunohistochemistry staining,and another 10 samples of NSCLC and pericancerous tissues were used for RNA and protein extraction,qRT-PCR was performed to detect the expression of STX8 mRNA,and Western blot assay was adopted to detect the expression of STX8 protein.The relationship between STX8 expression and clinicopathological features of NSCLC was analyzed.Results Results of qRT-PCR showed that the expression of STX8 mRNA was significantly higher in NSCLC tissues than that in the pericancerous tissues (3.962 5±0.487 3 vs.0.538 2±0.097 5,t=21.797,P＜0.01).Immunohistochemistry results showed that the high expression rate of STX8 was significantly higher in NSCLC tissues than that in the pericancerous tissues [71.43％ (50/70) vs.38.57％ (27/70),x2=15.267,P＜0.01].Western blot results showed that the expression of STX8 protein was significantly higher in NSCLC tissues than that in the pericancerous tissues (2.496 1±0.362 5 vs.0.340 2±0.119 1,t=17.876,P＜0.01).The high expression rate of STX8 was significantly different in different histological types of NSCLC (P ＜0.05).The high expression rate of STX8 was higher in squamous cell carcinoma and adenocarcinoma than that in adenosquamous carcinoma,and the high expression rate of STX8 was not observed in large cell carcinoma.There were no significant differences in expressions of STX8 in NSCLC patients with different gender,ages,tumor diameters,TNM stages and with or without lymph node metastasis (P＞0.05).Conclusion A high expression of STX8 in NSCLC tissues may be correlated with the occurrence and development of NSCLC.

Objective To analyze the sonographic ifndings of large adrenal cortical adenoma. Methods The sonographic characteristics of thirteen cases of large adrenal cortical adenoma (diameter≥4.0 cm) which were diagnosed by surgery from January 2006 to August 2012 were retrospectively reviewed. Results In all cases, the adenomas had distinct margins. The mean size of lesions was (5.5±1.6) cm, ranging from 4.0 cm to 8.8 cm. On echotexture, three lesions were homogeneous and the remaining ten lesions were heterogeneous. In addition, seven contained hypoechoic nodules and hyperechoic septum, three had anechoic area, three had extremely hyperechoic area with acoustic shadow, and two had patchy hyperechoic area. On Doppler, most lesions had no lfow signal. Conclusions Large adrenal adenomas have complete capsule and heterogeneous internal echoes with septum, calciifcation, necrosis and hemorrhages. These characteristics are less frequently seen incommon adrenal adenoma, therefore may be helpful in recognition of large adrenal adenoma in clinical practice.

Objective To evaluate the feasibility of methylene blue as a method in lymphatic mapping and the effect factors of SLNB identification rate. Methods The results of SLNB in 276 patients with clinical stage T-T2N0M0 breast eaneer were analyzed to evaluate the effect factors of identification rate and false-neg-ative rate of SLNB. Results The identification of SLN was carried out using methylene blne . When the mapping time of SLN and lymphatic were controlled in 20～30 minutes, the SLN could be visualized easily. SLN was successfully identified in 246 of 276 patients (89.1%) ,423 SLNs were retrieved(1～4). The SLN accurately predicted the status of the axilla in 226 of 246 patients (77.3%) yielding a FNR(false negative rate)of 8.1% (20/246) ,false positive rate of0, and an accuracy of 91.9% (226/241). For the identified rate of SLN, the clinical stage of T2N0M0 disease was higher than the clinical stage of T1N0M0 disease (P=0.046,P<0.05), Upper outer quadrant and lower outer quadrant were higher than other evidently (P<0.0010). SLNs were easily retrieved in those cases aged above 50 years than below 50 years (P<0.001).In the view of false-negative rate of SLNB, the FNR rate in patients of 50 years old was less than older ones (P=0.037, P<0.05). No significant correlation was found between the stage of TMN, the expression of ER and PR, histologic status and FNR. Conclusion When SLNB was performed using methylene blue, we found age, clinical stage of TMN, the location of tumor had relationship with the identified rate of SLN. Ag-ing and location of tumor may adversely affect FNR of SLNB.

OBJECTIVE:To provide reference for the application of position number in the pharmacy drug management. METHODS:Three-dimensional coding method was used for coding the position number. The mentioned method was combined with hospital information management system (HIS) for the out of storage,deployment and inventory. Memory field assumptions method was used to compare the size of field memorized by pharmacist in inpatient pharmacy before and after management of posi-tion number. Sampling controlled trial was conducted to compare the drugs deployment time and walking distance of pharmacists in inpatient pharmacy and drug storehouse before and after coding management of position number. RESULTS:After management of coding management in inpatient pharmacy,the memory required field was decreased from 1 028 to 25,deployment time of pharma-cists was decreased from(36.57±0.82)min to(24.20±0.33)min,and the walking distance was decreased from(79.17±0.29)m to(38.59±0.56)m. After management of coding management in drug storehouse,deployment time of pharmacists was decreased from(61.86±0.44)min to(47.18±0.63)min,and the walking distance was decreased from(129.53±0.58)m to(68.97±0.32) m. CONCLUSIONS:The drug coding management of position number can improve the deployment efficiency and reduce the brain and physical quantity of pharmacists.

Objective To build a RNA interference vector for PQ-loop repeat protein (LRP) gene,and to evaluate the effect of the vector on the expression of PQ-LRP gene in Microsporum canis.Methods The PUC-PLULT and PCB309-PLULT vectors were constructed sequentially by using Agrobacterium tumefaciens-mediated T-DNA insertional mutagenesis,adding multiple cloning sites,and introducing the hygromycin-resistance gene.Microsporum canis was transformed with the PCB309-PLULT vector followed by a series of passages and hygromycin selection.Real-time quantitative PCR was performed to measure the expression of PQ-LRP gene in Microsporum canis before and after transformation.Results The intermediate vectors PUC-PLUT and PUC-PLULT were constructed and identified by PCR and gene sequencing.The 8 825-bp interference vector PCB309-PLULT was successfully built and confirmed by enzyme digestion.The optimum concentration of hygromycin for screening for Microsporum canis transformants was determined as 300 mg/L.The mRNA expression level of PQ-LRP was decreased by 61％ in the transformants as compared with untransformed Microsporum canis (0.39 vs.1.00).Conclusion The constructed PCB309-PLULT interference vector can effectively inhibit the expression of PQ-LRP gene in Microsporum canis.

Objective To evaluate a new gene therapy for the treatment of experimental occlusive arterial disease Methods Magnetic nanospheres were produced, VEGF gene was cloned for subsequent construction of eukaryotic expression plasmid The magnetic gelatin microspheres used in targeted gene therapy were prepared by emulsion crosslinking method The microspheres were injected intrafemorally in rabbits through contralateral femoral artery, and the ischemic limb was placed in a magnetic field Angiography was performed on day 10 and day 30 respectively The capillary density and the capillary to muscle fiber ratio were determined histochemically Results Compared to the controls there was significant collateral artery development in VEGF transfected group The capillary density and the capillary to muscle fiber ratio were significantly higher for the VEGF transfected group than for the control group. The capillary density of control was (125?23)/mm 2, and in VEGF group was (298?27)/mm 2, P

Objective To analyze indications,complications and outcomes of amputation.Methods A total of 15 patients undergone amputation in field or at tent hospital were collected for analy-zing injury severity,place where amputation was done,whether open or closed amputation and stitch re-moval time. Results There were 9 males and 6 females.at an average age of 32 years(11-51years).There were 16 amputations including Gustilo IIIB in 2 patients, Gustilo IIIC in 9 and Tscheme Ⅲin 5 according to Gustiln classification or Tscheme classification.Four patients who received amputation in field or at tent hospital developed infection and had to receive amputation again at a higher level on the limb and drainage of open wounds because of a higher infection rate due to the amputation location.Ten patients received first amputation at higher levels with open wound at station hospital but only 2 manifested infected incision.High level amputation with one stage closure was done in 1 patient who was infected and suppurated after operation and even developed bacteremia. Conclusions Infection rate following am-putation 4n field and tent clinics is rather higher,so secondary open amputations should be performed at a higher level as soon as possible.One-time and high-level open amputation plays an important role in treat-ment of severe lower limb injuries following earthquake.