new YORK (Reuters Health) – patients who is them

performs a bypass to improve flow blood to the heart are

more likely to have an accident stroke (CVA) that

those to which is placed a stent.

A team reviewed 19 studies on a total of almost 11,000

patients with clogged arteries and that, at random, was made them

a bypass or placed them a stent to reopen vessels

obstructed.

data showed that patients with a bypass were

three times more likely to suffer an LCA while they recovering

from surgery than the group treated with stents.

“some patients with coronary artery disease in which

angioplasty (to place a stent) is clearly the focus

suitable and less invasive”, believed Dr. Gregg Stone, of the

< p> Centro Médico de Columbia University, Nueva York. “Hay otros

pacientes en los (la lesión) que es tan grande que la mejor

indicación es la cirugía”, agregó.

Pero nl por lo menos la mitad de los pacientes cardíacos,

según dijo Stone, el bypass y un stent zoon Options válidas. Y

nl esos casos, el riesgo de sufrir un ACV es un factor

importante para tener en cuenta.

“Es algo que influiría en la decisión del médico y del

Natascha”, indicó. “La mayoría de los pacientes preferirían

morir een tener un ACV”, afirmó.

La Asociación Estadounidense del Corazón estima que

anualmente 800.000 estadounidenses sufren un ACV.

19 Los estudios analizados incluían pacientes de 60 años; la

Ik eran hombres.

Al mes de la intervención, 12 de cada 1,000 pacientes

tratados con un rondweg tuvieron un ACV, comparado con tres o

< p> four of every 1,000 treated with a stent.

This means that cardiac patients 155 is them

would have to place a stent instead of making them a bypass for

prevent an LCA, Stone team publishes in Journal of the

American College of Cardiology.

per year, the last control made, there had been more

LCA in the treated group with a bypass than in patients

treated with stents.

Stone and other researchers could not consider the

possible effects of risk factors traditional of the

LCA, as diabetes. nor had information of how many

studies patients were killed by the LCA.

still, Stone believed than the variations of pressure

during the bypass and a clamp placed in vessels

that surround the heart could increase the possibility that is

obstruct the blood flow to the brain.

in general, said, “the manipulation of the heart is greater”

during surgery bypass.

Stone and one of his co-authors stated offer services of

consulting and other economic relations with companies that

produce stents, Medtronic and Boston Scientific.

the period of increased risk of an LCA after a

bypass are 24 or 48 hours after the surgery, according to

said Dr. Farzan Filsoufi, surgeon Heart Center

medical Mount Sinai, New York, and who did not participate in the study.

then, if patients have an LCA, he explained that it would be more

a matter of risk factors than of the surgery.

added the update of technology allowed that

researchers decreased the risk in recent years of

have een LCA tijdens of onmiddellijk na een rondweg.

zei dat het risico nog steeds hoog is bij het plaatsen van een stent,

Hoewel die ervoor om de stent kiezen patiënten zijn meer vatbaar voor

moet een tweede stent. “Dat is eigenlijk het verschil,”

hij samengevat Filsoufi.

Bron: Journal van de American College of Cardiology,

online 20 augustus 2012