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BOSTON, Nov 4 (Reuters) - Allowing the heart to keep GLOBE VALVE beating during coronary bypass surgery is riskier than stopping the heart and using a heart-lung machine to keep the patient alive, researchers reported on Wednesday. The technique, involving mechanical heart stabilizers manufactured by companies such as Medtronic Inc (MDT.N) and Guidant Corporation, owned by Boston Scientific (BSX.N), is used in about 20 percent of U.S. heart bypass operations. And among off-pump patients whose grafts were tested after surgery, 37 percent had at least one blocked graft compared to 29 percent for those who had been hooked to the pump, they reported in the New England Journal of Medicine. The findings are another blow to advocates of such off-pump surgery, in which a device is used to immobilize part of the beating heart so doctors can stitch new blood vessels around blocked arteries. When off-pump surgery was pioneered, advocates speculated that avoiding use of a heart-lung machine would produce shorter hospital stays, fewer complications, PLUG VALVES less bleeding, and fewer after-surgery neurological problems. Off-pump patients may not have fared as well because their surgeon sometimes had a harder time doing as many bypass grafts as planned, the researchers said. Getting access to some parts of the heart can be more difficult during off-pump surgery, said Grover. "The exposure isn't as good in off-pump. Hooking up to a vessel on the back side of the heart, the underside of the heart, would be the usual reason for a REDUCING VALVES lower number," he said. "There are some people that really do the off-pump operation very well and very frequently, and it's one of their major areas of expertise. I doubt it will change their practice much," Grover added.
原文来自： http://www.reuters.com/article/idUSN045328720091104

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译文：体外循环阀资料
在18日退伍军人事务医学中心的医生们发现，少旁路移植已经完成，一年的心脏病发作，死亡，或者心脏手术的风险进一步增加，如果医生在心脏仍跳动工作。这项技术，涉及机械心脏，如美敦力公司（MDT.N）和盖丹特公司，波士顿科学（BSX.N）国有企业生产的稳定剂，用于在美国的20百分之心脏搭桥手术。研究人员研究了2203例谁，他说，手术后一年，心脏有关的死亡发生在2.7体外循环患者的百分之，而百分之一点三那些上瘾的心肺机。而在非体外循环的移植手术后的病人进行测试，百分之三十七至少有一个阻止移植相比，百分之二十九的人谁已经上瘾泵中，他们在新英格兰医学杂志。调查结果是另一种此类非体外循环手术，其中一个设备是用来固定化的跳动的心脏的一部分，以便医生能够缝周围动脉阻塞的新生血管主张打击。当体外循环手术的先驱，主张猜测，避免使用一种心肺机将产生住院时间短，并发症少，出血少，少后，神经外科手术的问题。仍然会有对非体外循环程序倡导者，他说，因为这项研究主要是看看谁的男子往往比年轻的心脏搭桥手术的典型候选人。非体外循环可能没有这么好，因为他们的医生有时不得不做不易，许多搭桥术病人按计划，研究人员说。 “有些人真正做体外循环运作得很好，很频繁，这是其擅长的主要领域之一。我怀疑它会改变他们的做法了，”格罗弗补充。（编辑路透和穆罕默德扎尔加姆）

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