Objective To research the levels of thyroid hormone in patients with Sheehan′s syndrome .Methods The difference of thyroid‐stimulating hormone(TSH) or free triiodothyronine(fT3 ) or free thyroxine(fT4 ) levels was compared between 100 pa‐tients with sheehan′s syndrome and 100 cases of female healthy controls included in this study .The difference for TSH or fT3 or fT4 levels was compared between before and after treatment in Sheehan′s syndrome patients .The difference of TSH or fT3 or fT4 levels was compared when time from a large bleeding to disease onset below 1 year ,1‐5 years and over 5 years respectively in Shee‐han′s syndrome patients .Results The difference of TSH or fT3 or fT4 levels between patients with Sheehan′s syndrome and female healthy controls had obvious statistical significance .TSH :1 .60(0 .79 -2 .86)mU/L versus 3 .08(1 .97 -5 .08)mU/L ,fT3 :2 .09 (1 .44-3 .69)pmol/L versus 4 .86(4 .49-5 .40)pmol/L ,fT4 :8 .01(3 .45 -12 .64)pmol/L versus 14 .56(13 .63 -16 .11)pmol/L (P<0 .001 for comparisons respectively) .The difference of TSH or fT3 or fT4 levels between before and after treatment had obvi‐ous statistical significance .TSH :1 .60(0 .79-2 .86)mU/L versus 1 .16(0 .57-2 .11)mU/L ,fT3 :2 .09(1 .44-3 .69)pmol/L versus 3 .27(2 .38-4 .11)pmol/L ,fT4 :8 .01(3 .45 -12 .64)pmol/L versus 14 .32(10 .48 -15 .92)pmol/L(P<0 .05 for comparisons re‐spectively) .Time from a large bleeding to disease onset were below 1 year ,1-5 years and over 5 years ,TSH levels were respective‐ly 2 .85(2 .21-3 .51)、1 .82(1 .24-2 .98) and 1 .52(0 .65-2 .64)mU/L(P<0 .05 for comparisons) .The fT3 levels were respective‐ly 3 .74(2 .24-4 .45) ,2 .54(1 .87-3 .32) and 1 .89(1 .13-3 .11)pmol/L(P<0 .05 for comparisons) .The fT4 levels were respec‐tively 12 .21(10 .45-14 .32) ,8 .52(5 .13-12 .34) and 7 .85(3 .12 -10 .12)pmol/L(P<0 .05 for comparisons) .Conclusion TSH could serve as an identifiable index for sheehan′s syndrome and primary hypothyroidism .The time from a large bleeding to the dis‐ease onset is longer ,the anterior pituitary function is more serious .Thyroid hormone should be monitored regularly in order to pre‐vent the happening of hyperthyroidism during the process of the treatment .For postpartum hemorrhage patients ,thyroid hormone should be early detected and combine with the clinical manifestations .They should early diagnose and timely treat in order to pre‐vent the sheehan′s syndrome and its crisis .

Objective To utilize the expert resource in central hospital for helping doctors in community hospital to make suitable diagnosis and treatment,improve the technical level of community medical care. Methods The Telemedicine Diagnosis System is developed based on B/S mode and Microsoft Visual Studio.net C#2005 in Windows platform. Results The Telemedicine Diagnosis System has been developed, and realized the function of interface display, information management, medical image transmission and telemedicine diagnosis. Conclusion The system has friendly interface, simple operation, more reliability and quick data transmission, and it can accurately realize the experts' telemedicine diagnosis in time.

10.3969/j.issn.2095-4344.2013.26.006

Objective To investigate the diagnostic threshold value and diagnostic performance of high-sensitivity troponin T (hs-cTnT)for elderly patients with acute myocardial infarction(AMI).Methods 835 emergency department patients with chest pain were recruited in the study,then these patients were divided into elderly group (≥65 years old)and control group(<65 years old).Hs-cTnT concrentrations were compared between the two groups;The difference of hs-cTnT concentrations between AMI pa-tients and non-AMI patients were compared in elderly group and control group respectively;The optimal threshold values of the hs-cTnT for acute myocardial infarction were determined by receiver operating characteristic(ROC)curve.Results The hs-cTnT con-centrations of non-AMI patients in elderly group were 18.4(14.5-32.5)ng/L,which were higher than those of non-AMI patients in control group[3.2(3.0-8.2)ng/L],and the difference were statistically significant(P <0.05);The hs-cTnT concentrations of AMI patients in elderly group were 136.1 (51.6 - 384.1 )ng/L,which were higher than those of AMI patients in group 68.5 (25.6-217.1)ng/L,and the difference were statistically significant(P <0.05).According to the ROC curve,the optimal threshold value for AMI diagnosis in elderly group by using hs-cTnT was 32 ng/L,which was higher than that in control group(14 ng/L). The specificity and the positive predictive value of the optimal threshold value determined by ROC were apparently higher than the 99th percentile(P 99 )in elderly group respectively,the difference were statistically significant(P <0.05).Conclusion The hs-cTnT levels were positively related with age.The optimal threshold value of hs-cTnT for AMI(32 ng/L)was higher than the P 99 (14ng/L)in elderly group.

Objective To study the feasibility and clinical effect of trans umbilical single incision laparoscopic right hemicolectomy for right hemicolon carcinoma.Methods The clinical data of 35 patients with right hemicolon carcinoma were retrospectively analyzed,the 15 cases were received the trans umbilical single incision laparoscopic right hemicolectomy (single incision group) and 20 cases were received laparotomy right hemicolectomy (laparotomy group).The clinical indexes were compared between the 2 groups.Results The length of incision,intraoperative bleeding volume,passage of gas by anus time,feeding time,hospitalized time in single incision group were significantly better than those in laparotomy group [(5.5 ± 0.6) cm vs.(17.6 ± 2.2) cm,(84.0 ± 31.1) ml vs.(155.5 ± 43.1) ml,(2.00 ± 0.76) d vs.(3.75 ± 0.63) d,(5.3 ± 0.6) d vs.(6.5 ± 0.6) d,(9.3 ± 1.4) d vs.(13.5 ± 1.5) d],the operation time in single incision group was significantly longer than that in laparotomy group [(238.4 ± 19.3) min vs.(165.3 ± 25.8) min],there were statistical differences (P ＜ 0.05).There was no statistical difference in number of incision lymph node between the 2 groups (P ＞ 0.05).Postoperative complication in single incision group occurred in 2 cases,postoperative complication in laparotomy group occurred in 3 cases,there was no statistical difference (P ＞0.05).The follow-up time was 1-55 months,the median follow-up time was 28 months,local recurrence and distant metastasis were found in 2 cases in single incision group,and 4 cases was found in laparotomy group,there was no statistical difference (P ＞ 0.05).Conclusions Single incision laparoscopic right hemicolectomy for right hemicolon carcinoma is safe and feasible,which has the advantages of minimal trauma,aesthetic outlook,less bleeding,quick recovery and short hospitalization time,etc.It can be developed in the hospital which has some basis of laparoscopic surgery.

Objective To compare the expression of mIFN-γ, replicative activities and anti-tumor activities of CNHK300-mIFN-γand Ad-mIFN-γin normal and gastric cancer cells. Methods The replicative activities of viruses in cells were measured by viral replication assay. CPE assay was used to detect the antitumor effect of viruses. The expression level of mIFN-γ in cancer cells was detected by ELISA. Results The infection of CNHK300-mIFN-γled to an obvious expression of mIFN-γin gastric cancer cells. The vector system CNHK300-mIFN-γpossessed more replicated potential than Ad-mIFN-γ, and could specifically kill most of BGC-823 cells at MOI value of 0.1, which was much better than that by the traditional adenoviral vector. Conclusion CNHK300-mIFN-γcan selectively replicate and effectively express mIFN-γ in tumor cells, and specifically kill gastric cancer cells, suggesting a splendid future as a new anticancer agent.

BACKGROUND:The mechanical characteristics of intramedul ary and intramedul ary fixations for treating intertrochanteric fracture were hot research of finite element, but there was few comparative research on tension side and pressure side of proximal femur. In our study, we found that the distribution of the stress zone was important indication to researches on intertrochanteric fracture and internal fixation design. OBJECTIVE:To explore the effects of intramedul ary and extramedul ary fixations for treating intertrochanteric fracture on pressure side and tensile side of proximal femur. METHODS:CT scan and Mimics modeling of volunteer’s femur were conducted, and the model Evans type I intertrochanteric fracture was constructed and treated with proximal femoral nail antirotation and dynamic hip screw respectively. The stress condition of proximal femur in weight status was simulated. The Abaqus 6.13 was used for finite element analysis, and the tension side and pressure side of proximal femur in both fixations were also analyzed. RESULTS AND CONCLUSION:(1) The stresses of compressive side and tensile side in proximal femoral nail antirotation group were both less than that in dynamic hip screw group. The stress of proximal femur in proximal femoral nail antirotation group was more similar to that in physiological status. (2) These findings verified that for treating intertrochanteric fracture, intramedul ary fixation exerted better mechanical behavior than extramedul ary fixation. The protection of compressive side and tensile side of proximal femur had achieved by intramedul ary fixation.

Objective To study the surgical strategies and techniques for the correction of congenital kyphoscoliosis with hemivertebra and evaluate the surgical results. Methods From June 2010 to June 2011,there were 6 congenital kyphoscoliostic patients with fully segmented hemivertebra were undergone hemivertebra resection through posterior approach, which included 4 males and 2 females with an average age of 15.7 years. The average Cobb angle of scoliosis was 73.4° (range, 52°~87°), the average Cobb angle of segmental kyphosis was 67.4° (range, 43°~89°) . The highest level of hemivertebrae was T9 and the lowest was L2. The surgical strategies were designed as followed:For the 2 cases without structural compensative curve, the posterior hemiverte-brae resection and short segmental internal fixation were performed. For the 4 cases with structural compensative curve, whose Risser signs were classified into 2-5, the hemivertebrae resection and long segmental internal fixa-tion were performed, and the compensative curve was included in the instrumentation level. Results The opera-tion time was 2.5~4.0 h (average,3.5 hours), the blood loss was 700-2 000 mL (mean,1 367 mL) . Numb-ness happened in one lower extremity postoperatively in 1 patient, and the symptom released in 1 month. The aver-age postoperative Cobb angle in coronal plane was 21.4° (11°~28°) with a correction rate of 67.9%. The aver-age postoperative Cobb angle in sagittal plane was 17.8° (12°~35°) with a correction rate of 75.2%. The fol-low-up period was from 26 months to 36 months (average, 26 months),no pseudoarthrosis,and obvious correc-tion loss either in coronal or sagittal plane was noted. Conclusion Hemivertebra resection and individualized oper-ation way has a good capability of correcting congenital kyphoscoliosis caused by hemivertebra.

Objective To study the stability of the plasma glucose in sample tubes containing different glycolysis inhibitors and anticoagulants at room temperature for up to 24 h.Methods Venous blood was collected from 20 volunteers.Each donor blood sample was divided into six tubes containing different glycolysis inhibitors and anticoagulants and kept at room temperature.Plasma glucose was measured at 0,2,4,8 and 24 h after collection.The difference of plasma glucose levels for each sample tube was com-pared with different placed time and the difference of plasma glucose levels for the same placed time was compared with different sample tubes.Results The differences of the plasma glucose results of 2 hours after sampling and of instant detecting are statisti-cally significant for each sample tube(P<0.05).The differences of the plasma glucose levels among the three sample tubes contai-ning sodium fluoride are not statistically significant at the same placed time(P>0.05).The differences of the plasma glucose results of 2,4,8,24 h after sampling for each sample tube are not statistically significant(P>0.05).The differences of the plasma glucose results for each sample tube containing sodium iodoacetate are statistically significant at different placed times(P< 0.05).The differences of plasma glucose levels of 0,2,4 hours after sampling for the three sample tubes are no statistically significant(P>0.05)and the differences of plasma glucose levels of 8,24 hours after sampling for the three sample tubes are statistically signifi-cant(P<0.05).The differences of plasma glucose levels for the two glycolytic inhibitors are statistically significant at 4,8,24 hours after sampling(P<0.01)except 2 hours after sampling(P>0.05).Conclusion Tubes containing NaF are more suitable for detec-ting venous plasma glucose within 24 h at room temperature.The type of anticoagulant has no obvious correlation with the ability of glycolytic inhibition.

Objective To explore the feasibility of visually assessment of angiogenesis in a murine model of subcutaneous matrigel plugs with ultrasound molecular imaging(UMI) using microbubbles(MB)targeted to endothelial αv-integrins. Methods Matrigel angiogenesis was created by subcutaneous implantation of FGF-2 enriched matrigel in 10 mice. On day 10, UMI of the matrigel was performed in all mice at 6 minutes after intravenous injection of either αv-integrin targeting microbubbles(MBα) or isotype control microbubbles(MBc) in random with 30 min interval,and the video intensity(Ⅵ) was measured. To further test the specificity of the signal coming from MBα,antibody against αv-integrin was injected 10 min before microbubbles injection. Following UMI,all matrigels were harvested for histological analysis. Results As expected,VI of the matrigel was significantly higher ( P ＜0.05) for MBα (20. 5 ± 3.3)U as compared with MBc (4. 8 ± 1.5)U. After blocking with antibody against αv-integrin,a great decrease was observed in the MBα group [VI (4.6 ± 1.2) U, P ＜0.05] while no significant difference was noted for MBc [VI (4. 9 ±1.5)U, P ＞ 0.05 ]. Neovessels within matrigel was positive for αv-integrin. Conclusions UMI with microbubbles targeted to αv-integrins can be effective and specific in evaluating the angiogenesis in a murine model of subcutaneous matrigel plugs.