New heart stents better than old ones, study says
<p><span word="Stents">Stents</span> <span word="are">are</span> <span word="used">used</span> <span word="to">to</span> <span word="keep">keep</span> <span word="coronary">coronary</span> <span word="arteries">arteries</span> <span word="open">open</span> <span word="after">after</span> <span word="a">a</span> <span word="procedure">procedure</span> <span word="called">called</span> <span word="angioplasty">angioplasty</span>. <span word="Some">Some</span> <span word="stents">stents</span> <span word="contain">contain</span> <span word="medicine">medicine</span> <span word="that">that</span> <span word="is">is</span> <span word="released">released</span> <span word="over">over</span> <span word="time">time</span>. <span word="It">It</span> <span word="was">was</span> <span word="thought">thought</span> <span word="that">that</span> <span word="these">these</span> <span word="stents">stents</span> <span word="would">would</span> <span word="be">be</span> <span word="more">more</span> <span word="effective">effective</span> <span word="than">than</span> <span word="plain">plain</span> <span word="metal">metal</span> <span word="ones">ones</span>, <span word="but">but</span> <span word="early">early</span> <span word="studies">studies</span> <span word="showed">showed</span> <span word="patients">patients</span> <span word="who">who</span> <span word="had">had</span> <span word="medicated">medicated</span> <span word="stents">stents</span> <span word="were">were</span> <span word="more">more</span> <span word="llikely">llikely</span> <span word="to">to</span> <span word="have">have</span> <span word="a">a</span> <span word="heart">heart</span> <span word="attack">attack</span> <span word="than">than</span> <span word="patients">patients</span> <span word="who">who</span> <span word="got">got</span> <span word="plain">plain</span> <span word="stents">stents</span>. <span word="Now">Now</span> <span word="there">there</span>'<span word="s">s</span> <span word="a">a</span> <span word="new">new</span> <span word="generation">generation</span> <span word="of">of</span> <span word="stents">stents</span> <span word="that">that</span> <span word="release">release</span> <span word="medication">medication</span> <span word="and">and</span> <span word="a">a</span> <span word="new">new</span> <span word="study">study</span> <span word="about">about</span> <span word="their">their</span> <span word="performance">performance</span>.</p><p><span word="A">A</span> <span word="heart">heart</span> <span word="stent">stent</span> <span word="is">is</span> <span word="a">a</span> <span word="mesh">mesh</span> <span word="tube">tube</span> <span word="made">made</span> <span word="of">of</span> <span word="metal">metal</span> <span word="that">that</span>, <span word="when">when</span> <span word="inserted">inserted</span> <span word="into">into</span> <span word="an">an</span> <span word="artery">artery</span>, <span word="keeps">keeps</span> <span word="it">it</span> <span word="open">open</span>.</p><p><span word="Stents">Stents</span> <span word="can">can</span> <span word="be">be</span> <span word="metal">metal</span> <span word="only">only</span> <span word="or">or</span> <span word="they">they</span> <span word="can">can</span> <span word="contain">contain</span> <span word="medicine">medicine</span> <span word="released">released</span> <span word="once">once</span> <span word="the">the</span> <span word="stent">stent</span> <span word="is">is</span> <span word="in">in</span> <span word="place">place</span>.</p><p><span word="These">These</span> <span word="are">are</span> <span word="called">called</span> <span word="drug">drug</span>-<span word="eluting">eluting</span> <span word="stents">stents</span>. <span word="And">And</span> <span word="the">the</span> <span word="medication">medication</span> <span word="they">they</span> <span word="release">release</span> <span word="helps">helps</span> <span word="the">the</span> <span word="artery">artery</span> <span word="remain">remain</span> <span word="open">open</span> <span word="so">so</span> <span word="blood">blood</span> <span word="can">can</span> <span word="easily">easily</span> <span word="flow">flow</span> <span word="through">through</span> <span word="it">it</span>.</p><p><span word="But">But</span> <span word="studies">studies</span> <span word="show">show</span> <span word="that">that</span> <span word="even">even</span> <span word="with">with</span> <span word="drug">drug</span>-<span word="eluting">eluting</span> <span word="stents">stents</span>, <span word="some">some</span> <span word="patients">patients</span> <span word="still">still</span> <span word="have">have</span> <span word="heart">heart</span> <span word="attacks">attacks</span>. <span word="And">And</span> <span word="earlier">earlier</span> <span word="studies">studies</span> <span word="concluded">concluded</span> <span word="that">that</span> <span word="drug">drug</span>-<span word="eluting">eluting</span> <span word="stents">stents</span> <span word="could">could</span> <span word="actually">actually</span> <span word="increase">increase</span> <span word="the">the</span> <span word="risk">risk</span>.</p><p><span word="Dr">Dr</span>. <span word="Stephan">Stephan</span> <span word="Windecker">Windecker</span> <span word="heads">heads</span> <span word="the">the</span> <span word="interventional">interventional</span> <span word="cardiology">cardiology</span> <span word="program">program</span> <span word="at">at</span> <span word="Bern">Bern</span> <span word="University">University</span> <span word="Hospital">Hospital</span> <span word="in">in</span> <span word="Switzerland">Switzerland</span>. <span word="He">He</span> <span word="organized">organized</span> <span word="a">a</span> <span word="study">study</span> <span word="on">on</span> <span word="a">a</span> <span word="new">new</span> <span word="generation">generation</span> <span word="of">of</span> <span word="drug">drug</span>-<span word="eluting">eluting</span> <span word="stents">stents</span> <span word="and">and</span> <span word="compared">compared</span> <span word="them">them</span> <span word="to">to</span> <span word="the">the</span> <span word="plain">plain</span> <span word="metal">metal</span> <span word="variety">variety</span>.</p><p>“<span word="There">There</span> <span word="were">were</span> <span word="concerns">concerns</span> <span word="that">that</span>, <span word="actually">actually</span>, <span word="these">these</span> <span word="drug">drug</span>-<span word="eluting">eluting</span> <span word="stents">stents</span> <span word="may">may</span> <span word="lead">lead</span> <span word="to">to</span> <span word="adverse">adverse</span> <span word="events">events</span> <span word="such">such</span> <span word="as">as</span> <span word="occlusion">occlusion</span> [<span word="closing">closing</span>] <span word="of">of</span> <span word="the">the</span> <span word="artery">artery</span> <span word="with">with</span> <span word="blood">blood</span> <span word="clots">clots</span>," <span word="said">said</span> <span word="Windecker">Windecker</span>.</p><p><span word="Dr">Dr</span>. <span word="Windecker">Windecker</span> <span word="and">and</span> <span word="other">other</span> <span word="researchers">researchers</span> <span word="studied">studied</span> <span word="more">more</span> <span word="than">than</span> 1,000 <span word="heart">heart</span> <span word="patients">patients</span> <span word="who">who</span> <span word="were">were</span> <span word="having">having</span> <span word="an">an</span> <span word="emergency">emergency</span> <span word="heart">heart</span> <span word="procedure">procedure</span>. <span word="About">About</span> <span word="half">half</span> <span word="received">received</span> <span word="a">a</span> <span word="bare">bare</span>-<span word="metal">metal</span> <span word="stent">stent</span> <span word="while">while</span> <span word="the">the</span> <span word="rest">rest</span> <span word="received">received</span> <span word="the">the</span> <span word="latest">latest</span> <span word="medicated">medicated</span> <span word="stent">stent</span>. <span word="The">The</span> <span word="medicine">medicine</span> <span word="was">was</span> <span word="on">on</span> <span word="a">a</span> <span word="biodegradable">biodegradable</span> <span word="substance">substance</span>.</p>
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