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排序方式: 共有4474条查询结果,搜索用时 15 毫秒
61.
F Bruder Stapleton Patricia W Wahl Tom E Norris Paul G Ramsey 《Academic medicine》2006,81(10):897-901
Widespread interest in global health issues is a common characteristic of students and faculty in schools of public health and schools of medicine. Building on strong university-based and community-based programs in global health, the University of Washington has created a unique Department of Global Health that is housed jointly in its School of Public Health and Community Medicine and its School of Medicine. The creation of this department has generated significant enthusiasm throughout the university and the Seattle community as a new paradigm for addressing global health education, research, and service. Placing the new Department of Global Health in two university schools and finding the appropriate niche for the department among the university's many global health initiatives presented challenges, as well as opportunities. This article describes the goals of the department, the process by which it was created, and what it expects to accomplish. 相似文献
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J F Silverman J L Finley H K Park H T Norris P H Strausbauch 《Diagnostic cytopathology》1985,1(3):205-215
The fine needle aspiration cytology of two cases of bronchiolo-alveolar cell carcinoma of the lung having unusual features is reported. One case demonstrated numerous psammoma bodies in the cytologic smears, whereas the other case showed an abundance of cells with optically clear nuclei. Both peripherally located tumors were resected and confirmed as primary bronchiolo-alveolar cell carcinoma by histologic and ultrastructural examination. We believe this to be the first report describing these unusual features of bronchiolo-alveolar cell carcinoma diagnosed by fine needle aspiration cytology. Presented is a discussion of psammoma bodies and optically clear nuclei seen in primary and metastatic tumors of the lung. This will aid in the diagnosis of these cases. 相似文献
65.
Norris MC Weiss J Carney M Leighton BL 《International Journal of Obstetric Anesthesia》1994,3(3):127-131
Epidural and subarachnoid opioids have been associated with the development of oral herpes simplex lesions. Because of this risk, some anesthesiologists avoid neuraxial morphine in parturients with a history of herpes simplex virus labialis. When we began using neuraxial opioids for analgesia after cesarean delivery, we did not see any increased incidence of facial lesions. To confirm this impression, we studied 357 consecutive parturients presenting for elective or emergent cesarean delivery between 1 December 1989 and 27 June 1990. The women received spinal, epidural, or general anesthesia. Two hundred and one women received either spinal or epidural morphine, the remaining 156 parturients received only systemic opioids for postoperative analgesia. An investigator saw each patient daily until discharge. Only 11 patients (3%) developed oral lesions while hospitalized. None of these women had severe lesions. Neuraxial morphine did not increase the risk of labial lesions significantly (3.5% vs. 2.6%). Despite published data to the contrary, we found no correlation between neuraxial morphine and the risk of facial herpes virus lesions in women after cesarean delivery. We offer patients the option of neuraxial morphine for analgesia after cesarean delivery despite any history of oral herpes lesions. 相似文献
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Norris JS Valiante TA Wallace MC Willinsky RA Montanera WJ terBrugge KG Tymianski M 《Journal of neurosurgery》1999,90(4):673-679
OBJECT: The authors sought to establish prospectively whether there is a simple relationship between radiological features of brain arteriovenous malformation (AVM) hemodynamics and a patient's clinical presentation. METHODS: Thirty-one consecutive patients with AVMs underwent cerebral angiography at 3.8 frames/second during each standardized injection of contrast material. Contrast dilution curves were derived from the image sequences by using regions of interest (ROIs) traced on arteries feeding and veins draining the AVM nidus. Angiographic parameters were then analyzed in a blinded fashion. These parameters included the times required to reach the peak contrast density, the contrast decay time, and fractions thereof, in the ROI for each vessel. The authors determined whether these parameters, the arteriovenous transit time, and/or AVM size were related to patients' presentation with hemorrhage (11 patients), seizure (11 patients), or other clinical symptoms (nine patients). Statistically significant results were found only in analyses of arterial phase times to reach peak contrast density. Analyses of venous parameters, AVM size, and nidus transit time showed trends but no statistical significance. Arterial filling with contrast material was significantly slower in patients presenting with hemorrhage (mean 50%, 80%, and 100% of time to peak +/- standard error [SE] = 1.19+/-0.13, 1.97+/-0.18, and 3.04+/-0.34 seconds, respectively) compared with patients presenting with seizures (mean 50%, 80%, and 100% of time to peak +/- SE = 0.80+/-0.12, 1.32+/-0.18, and 1.95+/-0.29 seconds, respectively) according to analysis of variance (p<0.05) and post-hoc t-tests (p<0.05) for each parameter. Patients who presented with other symptoms had intermediate arterial filling times. CONCLUSIONS: These simple hemodynamic parameters, which can be obtained without added risk to the patient, may help identify a subset of individuals in whom AVMs pose a higher risk of future hemorrhage and who may therefore warrant more expeditious treatment. 相似文献
69.
The effect of salbutamol on performance in endurance cyclists 总被引:3,自引:0,他引:3
S. R. Norris S. R. Petersen R. L. Jones 《European journal of applied physiology》1996,73(3-4):364-368
The effect of salbutamol (S) on cycling performance was examined in 15 highly trained non-asthmatic male cyclists. A double-blind,
randomized cross-over design was used with S or placebo (P) administered using a metered-dose inhaler and a spacer device
20 min before each testing session. The S dose was 400 μg (four puffs), which is twice the normal therapeutic level. Subjects
were habituated to all the laboratory procedures in the week prior to actual data collection. The subjects performed four
tests under S and P conditions on separate days over 2 weeks. These included measurement of maximal O2 uptake
(cycle ergometry) with assessment of pulmonary function before and after, a submaximal (90% of ventilatory threshold) square-wave
work transition from a base of unloaded cycling, a 60-s modified Wingate test, and a simulated 20 km time trial. No significant
differences were observed in any of the dependent variables related to aerobic endurance or cycling performance between the
S and P conditions. These results support other findings that an acute dose (400 μg) of S has no performance-enhancing properties. 相似文献
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