目的:评价机械通气在新生儿麻醉应用中的安全性和有效性。方法:47例新生儿手术,在全身麻醉气管插管后,行机械定压模式呼吸通气30 m in,监测通气前后动脉血气值、血氧饱和度(SpO2)、体温、呼气末CO2浓度(PetCO2)、气道压(Paw)、呼吸频率(f)、心电等参数。结果:新生儿手术全身麻醉控制呼吸,根据PetCO2适当调节呼吸参数,采用定压呼吸模式,能够维持动脉血氧分压(PaO2)、动脉血CO2分压(PaCO2)于正常范围。结论:机械通气能安全有效地应用于新生儿手术。 相似文献
OBJECTIVE Studies have shown that risk factors of gastric cancer include living habits, eating moldy pickled food, dystrophy, lack of nutrients, and genetics, etc. This study explores the prevalence of these factors in Wuwei, a city in northwest China with a high incidence of gastric cancer.METHODS Family histories of the residents in Wuwei City were investigated with a case-control method. Segregation ratio and heredity degree of gastric cancer were calculated using theLi-Mantel-Cart and Falconer's regression methods. Chronic gastritis patients were followed-up by home visits, gastroscopy, and pathology. Carcinogenic fungi and volatilile N-nitroso compounds were noted in the residents' meals. Helicobactor pylori (Hp) was assessed in their gastric mucosa and the total content of serum vitamin C in 293 healthy adults was determined.RESULTS In Wuwei City, the segregation ratio of gastric cancer was 0.077. The heredity degree of first-degree relatives was 22.91%. The incidence rate of cancer per year in people in an atrophic gastritis group was 1.09%. Eight kinds of nitrosamines and 14 kinds of carcinogenic fungi were detected in the residents' food. Total average vitamin C in the serum of the 293 healthy adults in the summer was 5.74±2.79 mg/L. The positive rate of Hp in gastric mucosa of the residents was 67%.CONCLUSION The majorextrinsic factors include infection of Hp, atrophic gastritis (especially atrophic hyperplasia), and genetic susceptibility. 相似文献
This study aimed to evaluate the effect of scleral buckling combined with internal cyclopexy on the treatment of severe traumatic cyclodialysis cleft in open globe injuries (OGIS). This retrospective study recruited 10 patients of 10 eyes. With our surgical intervention, all the 10 eyes achieved retinal and ciliary body anatomic re-attachment. The choroidal ruptures in nine eyes were closed with complete choroidal reattachment. Postoperative best-corrected visual acuity of nine eyes had various improvements. The mean intraocular pressure was increased from 8.9±2.6 mm Hg to 13.4±4.4 mm Hg. Eventually, six eyes underwent silicone oil (SO) removal without complications, two eyes still had SO tamponade and two eyes became SO-dependent eyes. The result shows that internal direct cyclopexy combined with scleral buckling is an effective treatment for severe traumatic cyclodialysis cleft in OGIS. 相似文献