The Interannual Evolution of PAHs in Columnar Sediments in Offshore Area of Changxing Island Industrial Zone, China.

Changxing Island, located in the northwest of Dalian City in Liaoning, China, is a beautiful island on the West side of the Liaodong Peninsula. Since 1980, along with the development of the economic benefits and the environmental evolution of the Changxing Island marine belt, its ecological environment has changed to a certain extent. In this paper, the interannual evolution and organic pollution of polycyclic aromatic hydrocarbons (PAHs) in borehole core samples were studied, based on the survey data of coastal substrates and sedimentation chemistry of two columnar stations (C4 and C6) in Changxing Island, China, in 2017. It was found that the distribution of PAHs in the region was controlled by sedimentary types and hydrodynamic factors. The PAH content in the vertical direction of the borehole part was at the level of the environmental background value before 1980. However, from 1981 to the present, the overall increasing trend of PAHs content was evident, and there were obvious fluctuations with the changes of the surrounding environment. In the C4 column, the total concentration of 16 PAHs was 32.8-349.0 ng/g (dry weight), and it was 22.2-81.3 ng/g (dry weight) in the C6 column. Among them, the concentration range of PAHs species composition was from high to low, followed by tricyclic, quadricyclic, bicyclic, pentacyclic, hexacyclic, and the monomer with the highest content in the sea area was tricyclic phenanthrene. The supports were thereby provided for environmental pollution research, comprehensive evaluation, environmental carrying capacity forecasting, and early warning in this region, and it was served as the basis for development and antipollution feasibility demonstration.

Effective nursing care of cardiac arrest rescue caused by amniotic fluid embolism / 中国实用护理杂志

Objective To report successful nursing experience of cardiac arrest caused by amniotic fluid embolism.Methods 3 pregnant women with cardiac arrest caused by amniotic fluid embolism from January to August 2012 were successfully rescued,the nursing measures included observation of labor course,mechanical ventilation,rapid establishment of intravenous injection route,anti-shock and prevention of DIC and renal failure.Results 3 cases of pregnant women were given timely rescue and pulled through.All rehabilitated and were discharged.Conclusions Amniotic fluid embolism is the most serious,dramatic,and the most difficult to control complications in obstetric department.Prevention is the key for amniotic fluid embolism,once happened,medical workers should carry out rescue work calmly and implement effective interventions.

The change of surgical route and range of hysterectomy in different periods / 中国医师进修杂志

Objective To analyze the change of surgical route and range of hysterectomy in the past 10 years.Methods From January 2000 to December 2010,the clinical data of patients with hysterectomy were analyzed retrospectively,including clinical features,surgical path and scope of operation.Results There were 1980 patients.The predominant reason for hysterectomy was leiomyomas (52.88％,1047/1980),adenomyosis (17.78％,352/1980),cervical intraepithelial neoplasia (12.17％,241/1980).The age of the patients with hysterectomy for abdominal,transvaginal and laparoscopic was (46.54 ± 7.35),(58.73 ± 10.49),(44.10 ±5.12) years.In 2000-2005,the proportion of abdominal,transvaginal and laparoscopic proportion were 81.78％ (615/752),8.64％ (65/752) and 9.57％ (72/752).In 2006-2010 were 64.50％ (792/1228),6.51％ (80/1228) and 28.99％ (356/1228).In 2006-2010,the proportion of abdominal significantly decreased and laparoscopic significantly rised compared with those in 2000-2005,there were statistically significant differences (P ＜ 0.01).In 2000-2005,unilateral and bilateral annex removal ratios were 15.43％ (116/752),12.23％ (92/752),in 2006-2010 were 8.63％ (106/1228),7.49％(92/1228).Unilateral and bilateral annex removal ratios in 2006-2010 were significantly lower than those in 2000-2005,there were statistically significant differences (P ＜ 0.01 or ＜ 0.05).Conclusions Over the past 10 years,hysterectomy route and range changed with the percentage of laparoscopic increasing,and concomitant unilateral or bilateral annex removal decreased.