Objective To understand the status quo of knowledge,attitude and practice of clinical nurses’ needlesrick injury (NSI) prevention and its influencing factors.Methods In our cross-sectional study,1020 clinical nurses in different levels of hospitals in Suzhou were recruited to participate the questionnaire survey by stratified cluster sampling.Results The average scores of knowledge,attitude,and practice about NSI prevention were (78.60+15.30),(78.88+8.31) and (70.60+13.86),individually.There was significant correlation among knowledge,attitude and practice.Stepwise regression analysis indicated that knowledge,occupational safety training,section,attitude,rifle,work environment and the level of hospital were the main influencing factors of NSI prevention practice.Condusions NSI prevention knowledge,attitude and practice among clinical nurses are unsatisfactory.Nursing administrators should pay close attention to the nursing staffs’ need of NSI prevention knowledge and provide targeted education to promote the formation of positive attitude,correct bad behaviors and promote healthy behaviors of NSI prevention.

Objective To evaluate the utility of modified Z-stent in treatment for Budd-Chiarisyndrome (BCS). Methods A retrospective study was used in twelve BCS patients treated in twohospitals. The Doppler examination was carried out in all patients preoperatively, so as to confirm thenature of the lesion and chose correct type of endovascular modified Z-stent. Under DSA monitoring formembranotomy and dilation of the inferior vena cava(IVC), after that, insert the marked modified Z-stent to IVC correctly, and put the non-stent part to hepatic vein orifice. The cavography and hepaticvenography should confirm the position of the Z-stent. All of 12 patients with membranous obstructionof the IVC(MOVC) or segmental obstruction of the IVC (SOVC)were underwent modified Z-stentplacement. Results The IVC pressure (IVCP) before smd after membranotomy (dilation) were 27.33± 4.12cmH2O and 18.67 ± 5.07cmH2O (P＜0.01). Comparing with dilation and putting stent group,the IVCP decreased from 18.67 ± 5.07cmH2O to 11.42 ± 2.11 cmH2O ( P ＜ 0.01 ). The modffied Z-stent could avoid hepatic vein orifice getting compression and resist the retraction of IVC throughly infollowing-up period of 2.5 years. Conclusion s The endovascular treatment of BCS with modified Z-stent is more effective and safer to prevent thrombosis. Further study will be required to observe theirlong term effects.