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1.
A mixed‐method study of effects of a therapeutic play intervention for children on parental anxiety and parents' perceptions of the intervention 下载免费PDF全文
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Hysterosalpingography was performed in 31 patients by means of a low-dose scanning-beam digital radiographic system. The technique permits adequate evaluation of gynecologic abnormalities while allowing significant reduction in radiation: 2.4-mR (6.1 X 10(-7) C/kg) exposure to the skin and 0.7-mrad (7 X 10(-6) Gy) mean dose to the ovaries per image obtained. Sixteen patients demonstrated readily recognizable and documented abnormalities, corroborated by laparoscopy, laparotomy, or other supportive evidence. 相似文献
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Prevention of travelers' diarrhea by the tablet formulation of bismuth subsalicylate 总被引:11,自引:0,他引:11
H L DuPont C D Ericsson P C Johnson J A Bitsura M W DuPont F J de la Cabada 《JAMA》1987,257(10):1347-1350
Within 48 hours of arrival in Mexico, 182 US students participated in a study to compare the efficacy of two dosages of bismuth subsalicylate (262 mg per tablet) as a prophylactic agent against diarrhea. The students were randomly assigned to receive two tablets (high dose) or one tablet (low dose) of bismuth subsalicylate four times daily or a placebo four times daily during a three-week period. Among these completing the trial, diarrhea (four or more unformed stools in 24 hours or three in eight hours, plus one other symptom) occurred in seven (14%) of 51 receiving the high-dose regimen compared with 15 (24%) of 63 receiving the low-dose regimen and 23 (40%) of 58 in the placebo group. Protection rates were 65% for high-dose and 40% for low-dose bismuth subsalicylate. Diarrhea caused by enterotoxigenic Escherichia coli was found in one student receiving the high-dose regimen, in no students receiving the low-dose regimen, and in seven placebo-treated subjects. Bismuth subsalicylate was well tolerated; the most common side effects were blackening of tongues and stools. Bismuth subsalicylate use in both dosages was associated with tinnitus at a low, clinically insignificant frequency of 1.2 days per 100 days of treatment. The dosage of two tablets of bismuth subsalicylate four times daily (2.1 g/d) appears to be a safe and effective means of reducing the occurrence of travelers' diarrhea among persons at risk for periods up to three weeks. 相似文献
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Solitary bronchioloalveolar carcinoma: CT criteria 总被引:14,自引:0,他引:14
Kuhlman JE; Fishman EK; Kuhajda FP; Meziane MM; Khouri NF; Zerhouni EA; Siegelman SS 《Radiology》1988,167(2):379-382
The computed tomographic (CT) scans of 30 patients with solitary bronchioloalveolar carcinoma were reviewed. Common features at CT included the peripheral or subpleural location of a pulmonary mass (25 cases), pseudocavitation (18 cases), heterogeneous attenuation (17 cases), irregular margins forming a star pattern (22 cases), and pleural tags (21 cases). Using these CT criteria, four independent observers attempted to identify cases of bronchioloalveolar carcinoma from a larger sample of lung cancers and benign lesions by categorizing a series of test cases into four probability categories. Although the bronchioloalveolar carcinomas were correctly ranked in the two highest probability categories 75% of the time (in 45 of 60 cases), there was considerable overlap with other lung lesions, particularly with adenocarcinoma and large cell undifferentiated carcinoma. However, even though the typical features of bronchioloalveolar carcinoma are not invariable or highly specific, they are characteristic enough to suggest the diagnosis. 相似文献
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Roderik Metz Gino MMJ Kerkhoffs Egbert-Jan MM Verleisdonk Geert J van der Heijden 《BMC musculoskeletal disorders》2007,8(1):108