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The technique, called transcatheter pulmonary valve replacement, uses new technology to position the heart valve into place using a catheter placed in the vein of the leg and Ball Valves
then up into the heart where it is deployed.
The first patient to receive this new technique at the Monroe Carell Jr. Children's Hospital at Vanderbilt was able to go home after an overnight stay.
Drew Amons, M.D., holds up a stent VUMC surgeons are using in transcatheteBalance valves
r pulmonary valve replacement procedures in children. Photo by Joe HowellThirteen-year-old Nick Feck had quit playing sports and his grades were slipping because he tired so easily. Feck was born with a heart defect that was repaired at birth, but a valve in the Bedford County middle-schooler's heart was failing. He and his family were bracing for open-heart surgery, but Nick's doctors told himVanderbilt was prepared to try the less invasive technique.
Drew Amons, M.D., holds up a stent VUMC surgeons are using in transcatheter pulmonary valve replacement procedures in children. Photo by Joe Howell
“Each time we would come to see Dr. (Thomas) Graham, we wondered if thisMud Valves
would be the time he would need the surgery,” said Nick's mother, Natalie Feck. “But each time, Dr. Graham told us to hold on. I know God had a place in that.”
Tom Doyle, M.D., Ann and Monroe Carell Jr. Family Associate Professor of Pediatric Cardiology, Dana Janssen, M.D., director of the Pediatric Catheterization Laboratory, and Robert Piana, M.D., director of the Adult Congenital Interventional Program, performed the first cases, including Feck's.
Doyle said the technique is FDA- approved for a specific type of pediatric case: those in whom a connective tube, either made of artificial or natural materials, is placed between the right heart and the artery to the lungs. In this type of repair, the valve that keeps blood from back flowing from the lungs intotheReducing Valves
heart, often wears out.
“The replacement valve is created from a valve found in the neck vein of a cow,” Doyle said. “The section of vein with the valve is hand sewn onto a large metal stent that can be expanded on a balloon. The stent/valve combination is folded into a catheter about as wide as a pen.
“Under X-ray guidance we can move the catheter into the conduit, expand the stent in the vessel, and in so doing, deploy the valve inthe heart. Nick's procedure was very smooth; just perfect,”?Doyle said.
During the procedure on June 23, just one incision was made in Feck's leg where the catheter entered.
He went home the next day. A week later he was given the go-ahead to attend a long-awaited summer camp program.
“We spent the summer raising money through garage sales to go to church Forged Steel Valves
camp on July 5. If I had open heart surgery, I wouldn't have been able to go,” Feck said.
“And Dr. Doyle said not only could he go, but he'd be the fastest one there,” Natalie Feck said, smiling.
Due to the size of the delivery system, Vanderbilt is currently reserving the procedure for patients at least age 7.
Since the device is so new, it is not known how long the valves will last, although data from Europe show it does well up to five years out.
原文来自： http://www.shreveporttimes.com/article/20091205/NEWS01/91205007/1060
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以下是参考译文：
译文：支架/阀组合成一个导管约像钢笔广泛折叠
这项技术被称为经导管肺动脉瓣膜置换术，采用新技术来定位到位使用的心脏瓣膜在腿部静脉导管，然后放在一起来把它部署在那里的心。
第一个患者接受这种在小门卡尔儿童医院在范德比尔特新技术，能去后，留在家里过夜。
德鲁阿蒙斯医师，拥有了一个支架VUMC外科医生在使用排污泵
导管肺动脉瓣置换程序中的儿童。由Joe HowellThirteen岁的尼克Feck照片已经退出了比赛，他的体育成绩下滑，因为他是那么容易疲倦。 Feck是天生有心脏缺陷，出生时修复，但在贝德福德县中等斯库勒的心脏瓣膜是失败。他和他的家人被支撑的心脏直视手术，但尼克的医生告诉himVanderbilt准备尝试微创技术。
德鲁阿蒙斯医师，拥有了一个支架VUMC外科医生在使用导管肺动脉瓣置换真空泵
程序中的儿童。摄影：乔豪厄尔
“每次我们来看看博士（托马斯）格雷厄姆，我们想知道这将是一次他将需要手术，说：”尼克的母亲，纳塔莉Feck。 “但每一次，格雷厄姆博士告诉我们举行。我知道上帝在那个地方。“
托姆多伊尔医师，Ann和小卡尔家族梦露副小儿心脏科，达纳扬森医师，小儿导管实验室主任，罗伯特Piana的医师，成人先天性介入项目主任，教授进行的第一例，其中包括Feck的。
多伊尔说，该技术是美国食品药物管理局的一个特殊类型的小儿案件核准：那些在一个连通管人，无论是人造或天然材料，是与右心和对肺部动脉上。在这种修复类型，阀门，保持背部从肺施行本科生心脏血液流动，往往磨损。
“更换阀是由一个阀门创造的牛颈静脉发现，”多伊尔说。他说：“静脉瓣膜与上一节是螺杆泵
手工大型金属支架，可以在气球扩张缝。支架/阀组合成一个导管约像钢笔广泛折叠。
“在X射线指导下，我们可以移动到管道的导管，在血管扩张支架，并在这样做时，部署心脏瓣膜刘郁文。尼克的过程非常顺利，只是完美，“多伊尔说。
在6月23日的程序，只需一个切口在Feck的腿导管进入的磁力泵
情况下作出。
他回家的第二天。一个星期后，他被授予前进参加期待已久的夏令营。
“我们度过了夏季筹措车库销售的钱去教堂于7月5日至营地。如果我心内直视手术，我不会已经能够去，“Feck说。
“多伊尔博士说，他不仅可以走，但是，他是最快的一那里，”纳塔莉Feck微笑着说。
由于交付系统的大小，范德比尔特目前保留对病人隔膜泵
的程序至少7岁。
由于该设备是全新的，它是不知道多久的阀门将持续，尽管来油泵
自欧洲的数据表明它也长达5年之久。
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