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排序方式: 共有627条查询结果,搜索用时 15 毫秒
31.
FJ Weir A Smith P Littleton N Carter PA Hamilton 《Acta paediatrica (Oslo, Norway : 1992)》1992,81(9):672-675
The aim of this study was to measure plasma atrial natriuretic peptide in preterm infants with a patent ductus arteriosus before and after closure with indomethacin. Atrial natriuretic peptide was measured in 28 preterm infants with clinical and echocardiographic evidence of a patent ductus arteriosus and in eight preterm infants who did not develop clinical evidence of a patent ductus arteriosus. Plasma concentration of atrial natriuretic peptide was measured by radioimmunoassay. In 18 infants the patent ductus arteriosus closed after one course of indomethacin; atrial natriuretic peptide levels decreased from median 1240 pg/ml (range 201-5483 pg/ml) to 266 pg/ml (range 62-1108 pg/ml). In four infants the patent ductus arteriosus closed after two courses of indomethacin and two infants had surgical ligation after indomethacin treatment failed. The patent ductus arteriosus closed spontaneously in four infants (atrial natriuretic peptide median level 152 pg/ml, range 61-495 pg/ml). In the eight infants without patent ductus arteriosus, atrial natriuretic peptide level was median 224 pg/ml (range 38-876 pg/ml). Measurement of plasma atrial natriuretic peptide concentration has a role in predicting when indomethacin treatment is indicated. 相似文献
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Lleó Pérez A Hernández Pérez D Hernández Martínez FJ Navarro Palop C Marcos Jorge A Pallas Ventayol C 《Archivos de la Sociedad Espa?ola de Oftalmología》2000,75(8):555-558
PURPOSE/METHODS: Serpiginous choroiditis is a rare, chronic, progressive, and recurrent bilateral disorder primarily involving the choriocapillaris and the retinal pigment epithelium. Progression typically occurs as pseudopodia extensions away from the optic discs and usually infringes upon the macula and foveal region. RESULTS/CONCLUSIONS: We studied three cases of geographic choroidopathy, showing the ophthalmoscopic picture and the fluorescein angiographic of the fundus oculi, characterised by typical disease lesions. Finally, some considerations in differential diagnosis between pigment epithelium inflammatory diseases will be reported. 相似文献
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Wakefield MA Ruel EE Chaloupka FJ Slater SJ Kaufman NJ 《Journal of health communication》2002,7(2):113-121
The objective is to determine the relationship between brand-specific advertising and promotions in convenience stores for Marlboro and Camel cigarettes and choice of usual brand among school students. A cross-sectional survey was designed that merged records of store tobacco advertising and promotions. The survey was administered to 3,890 U.S. high school smokers with a usual brand, matched to 196 convenience stores. Choice of Marlboro as a usual brand was associated with presence of a Marlboro gift with purchase (p <.001) and a greater brand share of interior (p = .05) and exterior (p = .05) advertising voice for Marlboro. Choice of Camel as a usual brand was associated with a greater share of interior advertising voice for Camel (p <.001) but was unrelated to a Camel gift with purchase promotions (p > .05) and negatively associated with a greater share of exterior advertising voice for Camel (p < .001). The results are consistent with the notion that Marlboro-specific advertising and promotions may influence choice of Marlboro as a usual brand to smoke among teens, but resultsfor Camel are mixed and inconclusive. Further research is required to confirm and extend these findings. 相似文献
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The authors report a case in which the clinical and neuroimaging findings were initially considered diagnostic of a brainstem glioma. Angiography revealed a deep venous system (galenic) dural arteriovenous fistula causing brainstem interstitial edema. Successful endovascular surgery resulted in complete clinical recovery of the patient and resolution of the structural abnormalities that had been observed on magnetic resonance images. The neuroimaging and therapeutic significance of this case are discussed. 相似文献
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Dural arteriovenous fistulas 总被引:2,自引:0,他引:2