Objective To investigate the clinical efficacy of B-Lynch suture in the treatment of massive hemorrhage during cesarean section. Methods Thirty-six patients with massive hemorrhage during cesarean section were applied with B-Lynch suture when bleeding was not controlled through conventional treatment. Results The bleeding of 36 cases were all controlled effectively when treated with B-Lynch suture,no one was operated again because of poor blood circulation or rebleeding, avoided hysterectomy, no postoperative complications occurred, there was no abnormal of uterine involution and the menstrual time.Conclusions The operation of B-Lynch suture is easy, hemostasis rapidly,reliable,persistently,and with high success rate. It can reserve the uterus maximumly, reserve the fertility function of the patient. It is the effective surgical hemostasis in the treatment of massive hemorrhage during cesarean section, and without special equipment, suitable for primary hospital use when emergency,worthing promotion.

Objective This study aimed to accurately understand medical teaching design research status and development trend to provide practical basis for the future of the medical teaching practice.Methods CNKI academic journal articles from January 1,2000 to December 30,2013 were retrieved,using search item for the subject,the retrieval word for instructional system design or instructional design,and the retrieval subject for medicine,and matches are precise retrieval way,and a total of 298 articles were retrieved.The common word analysis method was used to compare the high frequency keywords,analyze the key words in the article,and study the high frequency keywords clustering.Results In the two stages from 2000 to 2006 and from 2006 to 2013,research on medical teaching design of the courseware,distance education and other traditional E-learning-frequency gradually reduced,and vocabulary frequency related to education informationization of new situation such as cooperative learning,teacher education and constructionism and so on increased.In addition,in the second stage,some fresh words related to new technologies and new media appeared,such as interactive electronic whiteboard,virtual reality technology and so on.According to the correlation of keywords in 2007-2013,we found that the current medical teaching design research mainly gathered in three aspects such as classroom teaching,information technology supporting the reform of medical teaching and the training of medical teaching practitioners.Conclusion The research concluded that today and the future of medical teaching design research will mainly focus on three aspects such as effective teaching,the diversification of teaching supported by information technology and open medical education research under the Internet environment.

Objective To evaluate the value of liver acquisition with volume acceleration(LAVA) in the diagnosis of hepatic outflow abnormalities.Methods LAVA was performed in 78 patients with suspected hepatic outflow abnormalities,thrombosis,stenosis,occlusion,or compression,including 71 hepatocellular carcinomas and 7 Budd-Chiari syndrome.Image quality and the presence of venous abnormalities and collaterals were evaluated.Results LAVA images were of diagnostic quality and without artifact in all patients.LAVA clearly showed the vascular anatomy and various disorders.The site,extent,cause of venous obstruction,and collateral pathways were well depicted.Conclusion LAVA is simple to perform and accurate in detecting hepatic outflow abnormalities.

OBJECTIVE:To establish a method for dissolution determination of Erythromycin ethylsuccinate granules.METHODS:Paddle method was adopted and 0.1 mol?L-1 HCl solution was used as dissolution medium at rotation rate of 50 r?min-1.UV spectrophotometry was used to detect at wavelength of 482 nm.Dissolution rate was calculated.RESULTS:The linear range of erythromycin ethylsuccinate were 4～40 mg?L-1(r=0.999 0,n=5)with an average recovery of 99.19%(RSD=0.56%).Dissolution rate of erythromycin ethylsuccinate was more than 80% within 30 min.CONCLUSION:The method is rapid,simple and accurate for the quality control of Erythromycin ethylsuccinate granules.