ObjectiveTo investigate the effect of constructing new nurse training system on the competency of the nurses. MethodsA total of 192 new nurses who started their career in 2012 and 2013 were divided into two groups based on the time. Ninety-six of them who became nurses in 2012 were regarded as controls, and they received traditional training, while the other 96 new nurses of 2013 were chosen to be the experimental group, and they accepted the new training model for all-round training. Then, we compared the two groups of nurses in terms of their theoretical knowledge, operative skills and comprehensive ability. ResultsThe theoretical knowledge, operative skills and comprehensive ability scores of nurses in the experimental group were all significantly higher than the control group, while the error rate of the experimental group was significantly lower, and the differences were statistically significant (P<0.05). ConclusionThe new nurse training system can improve the nurses' competency, which can provide a reference for standardized training of nurses.
ObjectiveTo probe into the clinical effects of intra-amniotic injection of ethacridine with Cook cervical ripening balloon in terminating mid-pregnancy. MethodsA total of 150 mid-pregnant women who required induction of labor from January 2011 to December 2012 were randomly divided into two groups: observation group (intra-amniotic injection of ethacridine with Cook cervical ripening balloon) and control group (intra-amniotic injection of ethacridine). ResultsThe time of labor induction was obviously shorter in the observation group than the control group [the time from using ethacridine to contraction: （29.68±4.17） vs (33.60±5.38) hours, P<0.05; total process: (7.63±2.30) vs (9.86±3.20) hours, P<0.05], and the residual rate of placental membranes [28.6% (10/35) vs 56.4%(22/39), P<0.05] was significantly lower. But there was no significant difference in postpartum hemorrhage [(81.60±17.64) vs (83.82±15.08 ) mL, P>0.05] and rate of success [100.0% (35/35) vs 94.9% (37/39), P>0.05]. ConclusionTerminating mid-pregnancy by intra-amniotic injection of ethacridine with Cook cervical ripening balloon has the advantages of shorter time and less pain, which deserves clinical application widely.
Cardiac enlargement is an important symptom of vascular and heart disease. The cardiothoracic ratio (CTR) is an important index used to measure the size of heart. The aim of this study was to assess the relationship between aging and cardiothoracic ratio. This paper also presents an improved C-V level set method to segment lung tissue based on X-ray image, which used to automatically compute CTR. In the investigation carried out in our school, we got more than 3 120 chest radiographs from medical examination of the working population in Beijing, and we systematically studied the effects of age and gender on the CTR to obtain reference values for each group. The reference values established in this study can be useful for recording and quantifying the cardiac enlargement, so that it may be useful for calling attention to the cardiovascular diseases and the heart diseases.