首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Cardiologists have pioneered the world’s first non-surgical bypass operation to turn a vein into an artery using a new technique
Cardiologists have pioneered the world’s first non-surgical bypass operation to turn a vein into an artery using a new technique
admin
2015-04-10
31
问题
Cardiologists have pioneered the world’s first non-surgical bypass operation to turn a vein into an artery using a new technique to divert blood flow in a man with severe heart disease. The keyhole procedure, which avoids the extensive invasive surgery of a conventional bypass, will offer hope to tens of thousands of people at risk from heart attacks.
Coronary heart disease, where the arteries are progressively silted up with fatty deposits, is responsible in a major industrial country like Britain for more than 160,000 deaths each year. Although major heart surgery is becoming commonplace, with more than 28,000 bypass operations in the UK annually, it is traumatic for patients and involves a long recovery period.
The new technique was carried out by an international team of doctors who performed the non-invasive surgery on a 53-year-old German patient. According to a special report in Circulation, journal of the American Heart Association, cardiologists developed a special catheter which was inserted into one of his leg arteries, threaded up through the aorta to the top of the diseased artery, which was the only part still open and receiving blood. Then, guided by ultrasound, a physician pushed a needle from inside the catheter through the artery wall and into the adjacent vein. A thin, flexible wire was threaded through the needle and the needle and catheter were withdrawn, leaving the wire behind and a small angioplasty balloon, which was used to widen the channel. Finally, the vein was blocked off just above the new channel allowing blood from the artery to be re-routed down the vein.
After the procedure, the vein effectively became an artery, carrying blood in the reverse direction from the previous way, and feeding the starved heart tissue with oxygen.
Dr. Stephen Oesterle, who led the team, said, "This milestone marks the first coronary artery bypass performed with a catheter. The technology offers a realistic hope for truly minimally invasive bypass procedures in the future. One of the most invasive things you can do in medicine is coronary artery bypass surgery. Our ultimate goal is to replace traditional coronary artery bypass with a procedure that does not require surgery. " Dr. Oesterle is director of cardiology at Massachusetts General Hospital and associate professor of medicine at Harvard Medical School in Boston. Melanie Raddon, cardiac nurse at the British Heart Foundation, said it was likely to be many years before the procedure was routinely used in hospitals.
What is Dr. Oesterle’s attitude towards the new bypass?
选项
A、Critical.
B、Positive.
C、Indifferent.
D、Neutral.
答案
B
解析
厄斯特勒博士对新的搭桥疗法的态度如何?[A]批评的。[B]正面的。[C]漠不关心的。[D]中立的。文章最后一段介绍了厄斯特勒博士对这种新技术的评价:这种技术是个里程碑,标志着用导管进行的第一个冠状动脉分流手术。这项技术为今后真正最小限度地实行侵人性搭桥手术提供了现实希望。通过这些赞美的话语,可知厄斯特勒博士对此项技术的态度是正面的,所以[B]为正确答案。
转载请注明原文地址:https://jikaoti.com/ti/XGFRFFFM
0
考研英语一
相关试题推荐
ThesuccessofAugustusowedmuchtothecharacterofRomantheorizingaboutthestate.TheRomansdidnotproduceambitiousblu
YourfriendlivesinanothercityandcametovisityoulastSunday,butduetosomereasonyouwerenotathome.Writeanotee
Writeanessaybasedonthefollowingchart.Inyourwriting,youshould1)interpretthechart,and2)giveyourcomments.Yous
ThePewFoundationdiscoveredinarecent【C1】______thattensionsoverinequalityinwealthnow【C2】______tensionsoverraceandi
Writeanessaybasedonthefollowingtable.Inyourwriting,youshould1)describethetable,and2)giveyourcomments.Yousho
NetworkSafetyAHousecommitteeisreopeningitsinvestigationofInternetservicesthatletcomputerusersdistributemusi
Writeanessayof160—200wordsbasedonthefollowingdrawing.Inyouressay,youshould1)describethedrawingbriefly,2)expl
Writeanessayof160-200wordsbasedonthefollowingtable.Youressayshould1.describethechangesinPeople’sDietinChin
Writeanessayof160-200wordsbasedonthefollowingdrawing.Inyouressay,youshould1.describethedrawingbriefly,2.e
Themostnoticeabletrendamongmediacompaniesisverticalintegration—anattempttocontrolseveralrelatedaspectsofthem
随机试题
患者初始纳少,腹胀,便溏,面色少华,逐渐出现四肢痿软无力,神疲倦怠,舌胖苔白,脉弱,治宜选用()(2000年第71题)
患者,男性,左腰部被撞伤2小时,因左腰痛、尿色红来院就诊。查血压120/70mmHg(16/9kPa),心率80次/分,呼吸平稳,左腰部稍肿伴明显压痛,腹软无压痛。首先应做的检查是
下列建设工程中,必须实行监理的有()
判断起重机桥架疲劳损伤的指标是()。
编制资产负债表时,需根据在关账户期末余额分析,计算填列的项目有()。
除所在机构同意外,期货从业人员在执业过程中不得获取不正当利益。()
形成性评价
【注意事项】1.申论考试与传统的作文考试不同,是分析驾驭材料的能力与表达能力并重的考试。2.作答参考时限:阅读资料30分钟,作答90分钟。3.仔细阅读给定的资料,按照后面提出的“申论要求”依次作答在答题纸指定位置。4
COMPUTERSECURITYItisbelievedthattheproblemofcomputersecurityhaschangedoveraperiodoftimeasbusinesses,thro
Mostgrowingplantscontainmuchmorewaterthanallothermaterialscombined.C.R.Barneshassuggestedthatitisaspropert
最新回复
(
0
)