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排序方式: 共有251条查询结果,搜索用时 468 毫秒
111.
Outcome of tunneled hemodialysis catheters placed by radiologists 总被引:13,自引:1,他引:12
Lund GB; Trerotola SO; Scheel PF Jr; Savader SJ; Mitchell SE; Venbrux AC; Osterman FA Jr 《Radiology》1996,198(2):467
112.
Darcy MD; Lund GB; Smith TP; Hunter DW; Castaneda-Zuniga WR; Amplatz K 《Radiology》1987,163(3):819-821
Percutaneous techniques to manage urinary fistulas have had limited success. To overcome this, self-closing metallic clips were developed to occlude the ureter. The clips are applied through a percutaneously placed 30-F Teflon sheath. A case is reported in which the clips and new technique were successfully used. 相似文献
113.
Translumbar inferior vena cava catheters: safety and efficacy in peripheral blood stem cell transplantation 总被引:2,自引:0,他引:2
WD Haire ; RP Lieberman ; GB Lund ; BM Wieczorek ; JO Armitage ; A Kessinger 《Transfusion》1990,30(6):511-515
Most patients who need peripheral blood stem cell transplantation do not have peripheral venous access that would allow apheresis for stem cell collection. Subclavian apheresis catheters have an unacceptably high incidence of thrombosis-related access failure. A technique has been developed for translumbar placement of permanent, subcutaneously tunneled, silicone rubber apheresis catheters into the inferior vena cava, and 40 of these catheters have been placed in 36 patients for stem cell collection. Twenty-six catheters have been left in place for venous access during the transplantation procedure. These catheters had a very low rate (2.3%) of apheresis-related related complications. Access failure was attributed to thrombosis in 10 catheters (25%) and to mechanical complications in another 9 (22%), but access was regained in all but 4 of these cases. The catheters functioned well as venous access devices during transplantation, only rarely developing complications during that time. Venograms performed at the time of removal of 16 catheters showed no case of caval occlusion. A residual fibrin sheath was found around 14 catheters. There was no clinical or computed tomographic scan evidence of bleeding after placement or removal of the catheters. Percutaneously placed, translumbar inferior vena cava apheresis catheters provide a safe and effective route for the collection of peripheral blood stem cells for transplantation, and they can be left in place for venous access during transplantation. 相似文献
114.
Cultured keratinocyte grafting on various biologic matrices 总被引:5,自引:0,他引:5
Objective: To make attempts to use cell constructs from subconfluent keratinocyte cultures, which contain a much glue (TissucollR) and directly applied onto full thickness wounds in athymic mice or combined with allogenic split thickness overgrafts and compared with cultured sheet grafts. This keratinocyte fibrin glue suspension (KFGS) has also been used in burns up to 88% burned TBSA as well as in chronic wounds. Keratinocytes were also seeded onto various biomaterials (BiobraneR, HYAFF LaserskinR, IntegraTM, TissuFascieR) as carriers. Results: Human suspended keratinocytes were effective to reorganize to skin in vivo both in nude mice and in patients and superior if compared to sheet grafts. 3~ 5 d after seeding onto various biomaterials, cell reached subconfluence and were ready for grafting. These cell-membrane constructs were always tured on microspheres in spinner cultures could increase the cell yield, and the subconfluently covered microspheres were directly grafted onto" the wound. Conclusion: These experiments demonstrated that keratinocytes can grow on a variety of carrier materials in vitro and these cell constructs were able to spontaneously reform a multilayer neoepithelium in vivo. The current screening looks for the ideal carrier for keratinocytes that also would serve as a temporary wound cover and induce dermis formation by tissue conduction which further may be enhanced by gene therapy. 相似文献
115.
Guerriero S; Ajossa S; Mais V; Risalvato A; Lai MP; Melis GB 《Human reproduction (Oxford, England)》1998,13(6):1691-1695
We studied the role of colour Doppler energy (CDE) (or power Doppler)
imaging in the differentiation between endometriomas and other adnexal
masses in premenopausal non-pregnant women. A total of 170 consecutive
patients with persistent adnexal masses was submitted to B-mode
transvaginal ultrasonography associated with CDE imaging evaluation. Plasma
concentrations of CA125 were measured before surgery. Using CDE imaging
evaluation of vessel distribution, the occurrence of one of the following
findings was considered to indicate the likely presence of endometrioma:
(i) a round-shaped homogeneous hypoechoic 'tissue' of low- level echoes
without papillary proliferations associated with 'poor' vascularization;
(ii) a round-shaped homogeneous hypoechoic 'tissue' of low-level echoes
with an echogenic portion in which no flow was detected. The overall
agreement between the test result and the actual outcome was calculated
using the k index. The CDE imaging evaluation was more accurate in the
diagnosis of endometriomas compared with B- mode ultrasonography alone (k =
0.88 and 0.80 respectively). According to the logistic regression equation
obtained, the probability of the presence of endometrioma varied between a
minimum of 1.4% for patients with no risk factors to a maximum of 95.6% for
patients with two risk factors (CDE result and value of CA125 >25
IU/ml).
相似文献
116.
Anthropometric dimensions were taken on 1,572 women, 18–44 years of age, from Cali, Colombia, from three different socioeconomic (SEC) groups: low (LEC), mid-low (MLEC), and upper (UEC). LEC and MLEC women were significantly shorter and had higher body mass indices (BMIs) than UEC women, and a significantly larger number had BMIs over 27.3 kg/m2. There were no significant differences between SEC groups for skinfolds on the arm, but skinfolds on the trunk, the subscapular–triceps ratio, and the waist–hip ratio followed an inverse SEC gradient, indicating a greater tendency for upper body fat distribution in the lower SEC groups. SEC differences in body fatness and fat distribution diminished with age, suggesting that health risks associated with obesity and an upper body fat distribution may be similar in all three groups by ages 40–44 years. Secular changes in stature were similar, 0.12 cm/year for LEC/MLEC women and 0.15 cm/year for UEC women, and there was no indication that the statural differences between the groups is diminishing. The results indicate that women from Cali exhibit anthropometric characteristics seen in both developing countries (stature positively associated with SEC) and developed countries (fatness and centralized fat distribution inversely related to SEC). These findings may reflect the relative economic prosperity of Colombia as a “developing country”. © 1994 Wiley-Liss, Inc. 相似文献
117.
118.
119.
GB Boylan L Burgoyne C Moore B O’Flaherty JM Rennie 《Acta paediatrica (Oslo, Norway : 1992)》2010,99(8):1150-1155
Objective: To examine the extent of EEG monitoring in neonatal intensive care units (NICUs), and to survey the level of experience and training of those using it. Study design: A web‐based survey, the link to which was circulated via e‐mail, personal contact, specialist societies and professional groups. Survey data were exported to SPSS for analysis. Results: In total 210 surveys were analysed; 124 from Europe, 54 from the US. Ninety percent of respondents had access to either EEG or aEEG monitoring; 51% had both. EEG was mainly interpreted by neurophysiologists (72%) whereas aEEG was usually interpreted by neonatologists (80%). Only 9% of respondents reported that they felt ‘very confident’ in their ability to interpret aEEG/EEG with 31% reporting that they were ‘not confident’. Half had received no formal training in EEG. Conclusion: Both aEEG and conventional EEG were used extensively in the NICUs surveyed for this study. Most of the survey respondents were not confident in their ability to interpret EEGs despite the fact that they used monitoring routinely. There is an urgent need for a structured and appropriately targeted training programme in EEG methodologies and EEG interpretation for neonatal intensive care unit staff. 相似文献
120.
GB Haber 《Journal of gastroenterology and hepatology》2000,15(S3):G86-G89
Abstract The key issues that determine the decision between reusable versus disposable accessories are cost and functionality. In most health-care systems the availability and dissemination of endoscopic services relates directly to the resources (i.e. budget) of that system. Given the limitations of health-care budgets, access to endoscopic services will depend upon the cost efficiency of endoscopic practice. The onus on endoscopists and health-care providers, therefore, is to meticulously evaluate the necessary steps for safe reutilization of accessories. This paper addresses the principles of reuse, quality assurance and particularly disinfection practices. Any change to a more costly disposable accessory policy must bear the responsibility of denied access to endoscopic services in a system with finite resources. 相似文献