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排序方式: 共有1183条查询结果,搜索用时 343 毫秒
71.
Surgical management of tracheal trauma 总被引:1,自引:0,他引:1
72.
J E Liddicoat S M Bekassy A C Beall Jr D H Glaeser M E DeBakey 《Annals of surgery》1975,181(5):747-753
Numerous studies have demonstrated the superiority of membrane oxygenators (MO) over the bubble oxygenators (BO) when used for prolonged cardiopulmonary support. However, there is little information available evaluating the MO for routine, short-term cardiopulmonary bypass. In this study the 5MO314 Modulung-Teflo (MO) was compared to 5M30314 Miniprime Variflo (BO). The data of 91 patients (46 MO and 45 BO) were analyzed according to the duration of cardiopulmonary bypass (Group I less than 60 min., Group II 60-90 min. and Group III greater than 90 min.). Hemodynamic parameters, fluid and blood balance, as well as hematologic and blood gas studies were used for comparing the two oxygentors. The hemodynamic parameters were better, and the arterial blood gases were more physilogic with the MO. The postoperative blood loss was significantly less when using the MO. The other measurements documented the stability of the MO. All statements were based on statistical analysis with a DEC PDP-9 computer, using the MIIS language and operating system. Consequently, we are now using this MO for routine cardiopulmonary bypass. 相似文献
73.
We describe a middle-aged Chinese systemic lupus erythematosus (SLE) patient developing steroid refractory and transfusion dependent red cell aplasia. Oral danazol 200 mg twice per day was started together with low-dose prednisolone therapy. There was no further recurrence of anemia 1 month after this combined therapy. 相似文献
74.
Beall DP Ly JQ Wolff JD Sweet CF Kirby AB Murphy MP Webb H Fish JR 《Current problems in diagnostic radiology》2005,34(4):1386-159
Cystic masses of the knee comprise a diverse group of pathologic entities ranging from simple cysts to complications of underlying disease to tumors. Although their presentations may be similar, the appropriate treatment and patient management can differ greatly. In this article, we review radiographic and magnetic resonance imaging characteristics of both common and uncommon cystic masses of the knee. 相似文献
75.
Imaging findings of femoroacetabular impingement syndrome 总被引:5,自引:0,他引:5
Beall DP Sweet CF Martin HD Lastine CL Grayson DE Ly JQ Fish JR 《Skeletal radiology》2005,34(11):691-701
Femoroacetabular impingement syndrome (FAI) is a pathologic entity which can lead to chronic symptoms of pain, reduced range of motion in flexion and internal rotation, and has been shown to correlate with degenerative arthritis of the hip. History, physical examination, and supportive radiographic findings such as evidence of articular cartilage damage, acetabular labral tearing, and early-onset degenerative changes can help physicians diagnose this entity. Several pathologic changes of the femur and acetabulum are known to predispose patients to develop FAI and recognition of these findings can ultimately lead to therapeutic interventions. The two basic mechanisms of impingement—cam impingement and pincer impingement—are based on the type of anatomic anomaly contributing to the impingement process. These changes can be found on conventional radiography, MR imaging, and CT examinations. However, the radiographic findings of this entity are not widely discussed and recognized by physicians. In this paper, we will introduce these risk factors, the proposed supportive imaging criteria, and the ultimate interventions that can help alleviate patients symptoms. 相似文献
76.
We report the unusual case of a recurrent, massive synovial sarcoma of the hip, following magnet therapy failure. 相似文献
77.
Wang S Chen J Beall M Zhou W Ross MG 《American journal of obstetrics and gynecology》2004,191(6):752-2167
OBJECTIVE: Aquaporin 9 (AQP9) is one of the recently identified water channels that is also permeable to neutral solutes including urea. To investigate the molecular mechanism of intramembranous pathway of amniotic fluid regulation, we sought to determine whether AQP9 is expressed, and the cellular localization of AQP9 expression in human fetal membranes. STUDY DESIGN: Fetal membranes from 5 normal term human pregnancies were studied. Northern analysis was used to determine the tissue AQP9 messenger RNA (mRNA) expression. In situ hybridization and immunohistochemical staining with specific anti-AQP9 antibody was used for cellular AQP9 localization in the human fetal membranes. RESULTS: Northern analysis detected AQP9 mRNA expression in human amnion, chorion, and placenta. In situ hybridization revealed AQP9 mRNA expression in epithelial cells of the amnion, chorion cytotrophoblasts, and syncytiotrophoblasts and cytotrophoblasts of placenta. Further immunohistochemical study confirmed the AQP9 protein expression in these cell types of fetal membranes. CONCLUSION: This study demonstrated the expression of AQP9 mRNA and protein in human chorioamniotic membranes and placenta. The AQP9 expression in fetal membranes suggests that AQP9 may be an important water channel in intramembranous amniotic fluid water regulation. 相似文献
78.
Beall MH El Haddad M Gayle D Desai M Ross MG 《Clinical obstetrics and gynecology》2004,47(4):957-66; discussion 980-1
79.
Arsenic exposure exacerbates atherosclerotic plaque formation and increases nitrotyrosine and leukotriene biosynthesis 总被引:6,自引:0,他引:6
Bunderson M Brooks DM Walker DL Rosenfeld ME Coffin JD Beall HD 《Toxicology and applied pharmacology》2004,201(1):32-39
A correlation between arsenic and cardiovascular disease (CVD) has been established through epidemiological studies, although the mechanisms are unknown. Using a mouse model that develops atherosclerotic lesions on a normal chow diet, we have confirmed a connection between long-term arsenic intake and CVD. Our results reveal a significant increase in the degree of atherosclerotic plaque stenosis within the innominate artery of ApoE-/-/LDLr-/- mice treated with 10 ppm sodium arsenite (133 microM) in drinking water for 18 weeks compared to controls. Immunohistochemistry shows nitrotyrosine formation, a marker of reactive nitrogen species generation, is significantly higher within the atherosclerotic plaque of arsenic-treated mice. In addition, there is a significant increase in the 5-lipoxygenase (5-LO) product, leukotriene E4 (LTE4), in the serum of arsenic-treated mice. This is supported by induction of the 5-LO protein and subsequent increases in LTE4 synthesis in bovine aortic endothelial cells. This increase in LTE4 is partially inhibited by inhibitors of nitric oxide synthase, suggesting a link between reactive nitrogen species and arsenic-induced inflammation. Furthermore, there is a significant increase in prostacyclin (PGI2) in the serum of arsenic-treated mice. We conclude that changes in specific inflammatory mediators such as LTE4 and PGI2 are related to arsenic-induced atherosclerosis. In addition, amplified synthesis of reactive species such as peroxynitrite results in increased protein nitration in response to arsenic exposure. This finding is consistent with the pathology seen in human atherosclerotic plaques. 相似文献
80.