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Risk profile and outcomes of aortic valve replacement in octogenarians 被引量:1
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作者 Sujatha Kesavan Aamer Iqbal +6 位作者 Yusra Khan Jonathan Hutter Katie Pike chris rogers Mark Turner Mandie Townsend Andreas Baumbach 《World Journal of Cardiology》 CAS 2011年第11期359-366,共8页
AIM: To investigate the patient characteristics, relationship between the Logistic EuroSCORE (LES) and the observed outcomes in octogenarians who underwent surgical aortic valve replacement (AVR). METHODS: Two hundred... AIM: To investigate the patient characteristics, relationship between the Logistic EuroSCORE (LES) and the observed outcomes in octogenarians who underwent surgical aortic valve replacement (AVR). METHODS: Two hundred and seventy three octogenarians underwent AVR between 1996 and 2008 at Bristol Royal Inf irmary. Demographics, acute outcomes,length of hospital stay and mortality were obtained. The LES was calculated to characterize the predicted operative risk. Two groups were def ined: LES ≥ 15 (n = 80) and LES < 15 (n = 193). RESULTS: In patients with LES ≥ 15, 30 d mortality was 14% (95% CI: 7%-23%) compared with 4% (95% CI: 2%-8%) in the LES < 15 group (P < 0.007). Despite the increase in number of operations from 1996 to 2008, the average LES did not change. Only 5% of patients had prior bypass surgery. The LES identifi ed a low risk quartile of patients with a very low mortality (4%, n = 8, P < 0.007) at 30 d. The overall surgical results for octogenarians were excellent. The low risk group had an excellent outcome and the high risk group had a poor outcome after surgical AVR. CONCLUSION: It may be better treated with transcatheter aortic valve implantation. 展开更多
关键词 AORTIC VALVE replacement TRANSCATHETER AORTIC VALVE implantation Logistic EUROSCORE Coronary artery BYPASS grafting
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家庭智能菜园
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作者 Jacob chris rogers 《设计》 2013年第4期31-31,共1页
蔬菜的生长需要吸收大量的阳光和占用很多的空间,而对于寸土寸金的城市用地来说,拥有自己的菜园只是梦想。这款小型智能花盆改变了以往种植蔬菜需要阳光直射的方式,将蔬菜种植移到了室内,让人们在家中也能吃上自己种植的“放心菜”... 蔬菜的生长需要吸收大量的阳光和占用很多的空间,而对于寸土寸金的城市用地来说,拥有自己的菜园只是梦想。这款小型智能花盆改变了以往种植蔬菜需要阳光直射的方式,将蔬菜种植移到了室内,让人们在家中也能吃上自己种植的“放心菜”。它采用无土栽培技术,用户可以将种子放置在培养皿中,在保持一段时间的光照后,种子自然会发芽穿透培养皿,进而从内置的水溶液中吸取养分,保持继续生长的状态。而上方的光照灯则起到如同太阳光照的作用,并且可以根据植物的生长高度往上调节,不会出现因靠得太近导致温度太高烫伤植物的睛况。同时,这款智能花盆内置了一个闹钟,定时提供从早上5点钟到晚上11点的光照,并能根据不同的时间段自动调节亮度,而在晚上还能当台灯使用。如果植物水分或其它营养成分不足,它还发出蜂呜声提醒用户注意及时补充。 展开更多
关键词 家庭智能 菜园 蔬菜种植 无土栽培技术 植物水分 生长需要 城市用地 生长高度
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轨道几何形状的检测与系统试验
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作者 chris rogers 宋文伟 《西铁科技》 2011年第4期44-47,共4页
检测技术的发展,正在改变铁路基础设施管理者们对轨道状态的监测方式。本文阐述了如何利用在商业运输列车上安装检测设备,推动应急性养护向预防性养护的转变。
关键词 检测技术 轨道状态 几何形状 预防性养护 试验 系统 基础设施 检测设备
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