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971.
D C Lloyd A A Edwards E J Fitzsimons C D Evans R Railton P Jeffrey T G Williams A D White M Ikeya H Sumitomo 《Occupational and environmental medicine》1994,51(10):713-718
This paper describes the case of an industrial radiographer who was seriously overexposed to gamma radiation. The exact circumstances of this exposure were not established but it was concluded that he was repeatedly irradiated probably to a total average whole body dose of at least 10 Gy over several years. Also, a much larger dose to a hand required its partial amputation. He developed myelodysplasia, which progressed to acute myeloid leukaemia from which he died. Karyotypic examination of the leukaemic blasts showed changes very similar to those associated with secondary leukaemia that may develop after radio or chemotherapy. The paper describes his medical case history, the investigation of his workplace, and the attempts to estimate his radiation dose by chromosomal analysis of blood lymphocytes and electron spin resonance of dental enamel and bone. 相似文献
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974.
Amy Y. Chen MD MPH Nicole Schrag MSPH Yongping Hao PhD W. Dana Flanders MD DSc James Kepner PhD Andrew Stewart MS Elizabeth Ward PhD 《Otolaryngology--head and neck surgery》2006,135(6):831-837
OBJECTIVE: In 1991, a randomized study was published and demonstrated that use of nonsurgical therapy (chemoradiation) provided similar survival to total laryngectomy (the gold standard) for patients with advanced-stage laryngeal cancer. The purpose of this study was to assess how treatment of advanced laryngeal cancer was influenced by such developments in non-surgical therapy. STUDY DESIGN: Patterns of care study using National Cancer Database (1985-2001). RESULTS: The percentage of advanced-stage patients treated with chemoradiation increased from 8.3% to 20.8% while the proportion treated with radiation alone decreased from 38.9% to 23.0%. Use of chemoradiation increased at a significantly faster rate after the 1991 publication at both community cancer centers and teaching research facilities. The use of total laryngectomy decreased slightly during this period. CONCLUSIONS: The use of chemoradiation increased after the 1991 publication. It was impossible to determine from the NCDB whether additional patients who could benefit from chemo-RT were not offered or did not complete this treatment option. We recommend that treatment recommendations discussed at tumor boards be recorded in cancer registries. 相似文献
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977.
Anna Szymańska Elżbieta Korobowicz Wiesław Gołąbek 《European archives of oto-rhino-laryngology》2006,263(7):657-660
Nasopharyngeal angiofibromas occur predominantly in males in their puberty and adolescence; the incidence in other age groups and in women is exceptional. This report describes a case of a 57-year-old woman with nasopharyngeal angiofibroma presenting typical radiological findings in computed tomography, MR imaging and angiography. The tumour was successfully removed and histopathological examination confirmed the diagnosis. In 6 years follow-up the patient is free of symptoms. 相似文献
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979.
Significant advances have been made in the treatment of advanced testicular cancer. These advances have been centered on better staging techniques with procedures such as computed tomography as well as the development of reliable serum markers. Based on these techniques, patients can be directed toward primary surgical therapy or systemic therapy. Cisplatin combination chemotherapy can be expected to cure approximately 80 per cent of all patients with advanced disease. Currently, cisplatin plus etoposide plus bleomycin is the standard treatment for patients with advanced disease. Newer trials are currently addressing the role of more aggressive therapy in patients with a poor prognosis while parallel trials examine the possibility of minimizing toxicity for those patients with good-risk disease. 相似文献
980.
Serial angiographic findings during the development of a saccular aneurysm of the coronary artery in association with unstable angina. 下载免费PDF全文
A 60 year old man presented with unstable angina and electrocardiographic features suggestive of disease of the left anterior descending coronary artery. Angiography showed slight proximal narrowing in this artery with reduced density of contrast that suggested an associated thrombus. Repeat angiography after 24 hours of heparin administration showed the development of a small saccular aneurysm. Three weeks later, after a further episode of unstable angina, angiography showed enlargement of the aneurysm. Although there were no further episodes of angina, repeat angiography three months after the initial event showed further slight enlargement of the aneurysm. It is suggested that the episodes of angina at rest were secondary to embolisation of thrombotic or atheromatous material or both. 相似文献