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“Aim To compare the effect of colloid and crystalloid on maternal and neonatal hemodynamics in cesarean section. Material and Methods We searched MEDLINE (PubMed, 19662011), EMBASE (19742011), http://www.clinicaltrials.gov, the Cochrane Controlled Clinical Trials Register Database, Biosis Preview, and the Chinese Biomedical Database (19802011). Randomized controlled trials involving healthy term patients undergoing scheduled cesarean delivery that compared the effect of colloid and crystalloid on hypotension, PARP inhibitor drugs need for vasopressors, cardiac output, neonatal outcomes, and other adverse effects were analyzed. Results Ten trials of 853 patients were
eligible for analysis. When colloid was used, significantly fewer
hypotensive events occurred (odds ratio [OR] 3.21, 95% CI 2.154.53, number needed to treat=4), less demand for vasopressors (standard mean difference [SMD] 0.77, 95% CI 0.341.21) and improved cardiac output (SMD 1.08, 95% CI 2.00 0.17). In subgroup analysis, the use of colloid reduced hypotensive events and adverse effects in Asian patients. Conclusion Colloid hydration should be considered first, especially in Asian patients, focusing on dosage and type of fluids. Preventive or therapeutic vasopressors may be required in a significant proportion of patients.”
“Dechlorane plus (DP) was quantified by gas chromatography/mass spectrometry (GC/MS) BEZ235 in soil and ambient air (collected from Harbin City, a typical
northeastern Chinese urban region), water and sediment samples (collected in the segment within Harbin of Songhua River, located in northeast of China). The average concentrations of DP in sediment and soil samples were 123.6 pg g(-1) dry weight (dw), and 11.3 pg g(-1) dw, respectively. However, the concentration of DP in water was below the method detection limit (MDL). The inter-media comparison between water and sediment suggested that the sediment may be a receptor for DP. For air samples, two methods were used for collecting air in order to compare, active air sampling (AAS) and passive air sampling (PAS). The average concentrations of DP were 0.4 pg m(-3) and 6.9 pg m(-3) for AAS and PAS samples, respectively. Discrepancies see more of deployment period and different calculated method for DP concentration may help to explain the remarkable difference between PAS and AAS. Overall, DP in all matrices in Harbin City showed lower concentrations than that in the Great Lakes region. The anti-DP isomer was consistently greater than that of the syn-DP isomer in all matrices. The average fractional abundance of the syn-DP isomer (f(syn)) was smaller than the technical DP composition (f(syn) = 0.35) according to other studies in the Great Lakes region. As we know, this study is the first attempt to comprehensively study DP concentrations in four different matrices (water, ambient air, sediment and soil) in China.