December 15th, 2010
08:36 AM ET

How long can a stent stay in the body?

Every weekday, a CNNHealth expert doctor answers a viewer question. Today, it's Dr. Otis Brawley, chief medical officer at the American Cancer Society.

Question asked by Billy L. Hagler of Tennessee:

How long can a stent stay in the body? What is a sign of a stent closing up in the artery?

Expert answer:

A stent is tubular in shape and usually made of metal or ceramic. It is designed to keep a part of the coronary artery open. Coronary arteries are the blood vessels that carry blood to the heart muscle. Stents are placed through a cardiac angiogram, a procedure in which a catheter is placed in the groin and run up to the heart. An angioplasty, in which the narrowed blockage of the artery is opened with the inflation of a balloon usually, precedes the placing of the stent.

Stents were first used in the early 1980s, and some people with those original stents are still doing just fine nearly 30 years later.

Stents can develop blockages too. In recent years, drug-eluting stents have been used in some patients. Those stents are treated with drugs in an effort to decrease the risk of blockages forming. Patients who have stents are also at risk of getting additional coronary artery blockages. A regimen of aspirin therapy and control of cholesterol and triglycerides through diet, medicine or both does appear to decrease risk.

The signs of a blocked stent are the same as the signs of coronary artery blockage. An indication of such a blockage can be decreased exercise tolerance but is often angina. Angina can be a crushing chest pain, a pain that radiates down the left arm or one that goes up into the jaw. It often involves sweating. Angina can even present as a headache. Initially, angina is usually brought on with exertion and relieved with rest.

Patients who suspect they have angina should see medical personnel as soon as possible. Feeling the above described pain while at rest is described as unstable angina, which is a medical emergency. Those suspected of having it should go to an emergency room immediately.

The assessment of the coronary arteries and previously placed stents involves an exercise stress test. Very often, the venous injection of a nuclear medicine is done to assess oxygenation of the heart muscle during exercise. Those who have an abnormal stress test often get an angiogram. This test involves an X-ray opaque dye injected into the coronary arteries as X-rays are taken. The X-rays can demonstrate partial or complete blockages of the arteries and the stents in them. A blocked stent can usually be removed and replaced with angiography. Occasionally, a chest surgery known as coronary artery bypass grafting, or CABG, or bypass is needed to remove a stent and restore blood flow to the heart muscle.

Ask our expert doctors a question

soundoff (2,628 Responses)
  1. Buy Cheap Instagram Post Likes

    Hey there! Do you use Twitter? I'd like to follow you if that would be okay. I'm undoubtedly enjoying your blog and look forward to new posts.


    February 26, 2021 at 00:58 | Report abuse | Reply
  2. emergent

    Ԍreat article. I'm dealing with a few of tһese issues as well..

    February 27, 2021 at 10:25 | Report abuse | Reply
  3. frolep rotrem

    The next time I read a blog, I hope that it doesnt disappoint me as much as this one. I mean, I know it was my choice to read, but I actually thought youd have something interesting to say. All I hear is a bunch of whining about something that you could fix if you werent too busy looking for attention.


    February 27, 2021 at 12:33 | Report abuse | Reply
  4. id test untuk mega888

    I was recommended this website by my cousin. I'm
    not sure whether this post is written by him as no one else know such
    detailed about my trouble. You are wonderful! Thanks!

    My web blog :: id test untuk mega888

    February 27, 2021 at 12:55 | Report abuse | Reply
  5. mega888 online

    Oh my goodness! Amazing article dude! Thank you, However I am encountering troubles with
    your RSS. I don't understand the reason why I can't subscribe to it.

    Is there anybody having identical RSS issues? Anyone that knows the answer will you kindly respond?


    Here is my blog post; mega888 online

    February 27, 2021 at 16:07 | Report abuse | Reply
  6. Ratna

    I?ve been browsing online more than 3 hours lately, yet I by no means discovered any attention-grabbing article like yours. It is beautiful worth sufficient for me.


    February 27, 2021 at 16:57 | Report abuse | Reply
  7. midori travelers

    My spouse and I absolutely love your blog and find many of
    your post's to be just what I'm looking for. can you offer guest writers
    to write content for you? I wouldn't mind writing
    a post or elaborating on some of the subjects you write about here.

    Again, awesome site!

    my homepage ... midori travelers

    February 27, 2021 at 21:46 | Report abuse | Reply
  8. Nurul

    web owners and bloggers made just right content as you probably did, the internet will likely be a lot more helpful than ever before.


    February 28, 2021 at 06:01 | Report abuse | Reply
  9. NbmoZisse

    cialis generic date http://buycialisxz.com/ cialis mastercard

    February 28, 2021 at 09:01 | Report abuse | Reply
  10. ClarkTauts

    ymht8 ojo5f a5jf

    February 28, 2021 at 12:51 | Report abuse | Reply
  11. Cukrzyca.XMC.pl

    Sensible stuff, I look forward to reading more.


    February 28, 2021 at 20:44 | Report abuse | Reply
  12. Fitri

    In my opinion, if all {webmasters|site owners|website


    March 1, 2021 at 01:27 | Report abuse | Reply
  13. เกมยิงปลา

    Very nice content here.I really like this blog so much a lot of content and very informative for everyone.Thanks.เกมยิงปลา


    March 1, 2021 at 01:31 | Report abuse | Reply
  14. ClarkTauts

    aprqt x7zpa flbf

    March 1, 2021 at 03:53 | Report abuse | Reply
  15. Angla Lurtz

    Hey! I know this is kinda off topic but I was wondering which blog platform are you using for this website? I'm getting tired of WordPress because I've had problems with hackers and I'm looking at alternatives for another platform. I would be fantastic if you could point me in the direction of a good platform.


    March 1, 2021 at 06:46 | Report abuse | Reply
  16. ClarkTauts

    sjj6b 9t7vn vxf4

    March 1, 2021 at 09:06 | Report abuse | Reply
  17. Sri

    In my opinion, if all {webmasters|site owners|website


    March 1, 2021 at 09:46 | Report abuse | Reply
  18. Indah

    I?ve been browsing online greater than three hours lately, yet I by no means discovered any fascinating article like yours. It?s beautiful worth enough for me.


    March 1, 2021 at 09:46 | Report abuse | Reply
  19. KylieHMieras

    Howdy, i read your website every now and then and that i own a comparable one and i also was only wondering when you get a lot of spam
    comments? If how do you reduce it, any plugin or everything
    you can advise? I get a great deal lately it's driving me insane so any support is quite much appreciated.

    My web site; KylieHMieras

    March 1, 2021 at 15:12 | Report abuse | Reply
  20. ClarkTauts

    qhwks 5vcty 1zyn

    March 2, 2021 at 00:01 | Report abuse | Reply
  21. cameron

    І do not even know the way I finished up right here, but I assumed
    this put up used to be ցreat. I don't realize who you are but
    definitely ʏou аrе going to a famoᥙs blogger in the event you aren't alreɑdy.

    March 2, 2021 at 10:30 | Report abuse | Reply
  22. Fitri

    I have been surfing on-line more than 3 hours nowadays, but I never found any fascinating article like yours. It is pretty price enough for me.


    March 2, 2021 at 15:23 | Report abuse | Reply
  23. Eko

    Personally, if all {webmasters|site owners|website


    March 2, 2021 at 15:23 | Report abuse | Reply
  24. Agung

    In my view, if all {webmasters|site owners|website


    March 2, 2021 at 16:49 | Report abuse | Reply
  25. Andi

    In my opinion, if all {webmasters|site owners|website


    March 2, 2021 at 17:55 | Report abuse | Reply
  26. Agung

    web owners and bloggers made excellent content material as you did, the web can be much more useful than ever before.


    March 2, 2021 at 18:09 | Report abuse | Reply
  27. Agung

    I?ve been browsing online greater than 3 hours these days, but I never found any attention-grabbing article like yours. It is lovely value sufficient for me.


    March 2, 2021 at 18:09 | Report abuse | Reply
  28. 1222bets.com

    Hi! I just wanted to ask if you ever have any issues with hackers?
    My last blog (wordpress) was hacked and I ended up losing
    a few months of hard work due to no data backup. Do
    you have any solutions to prevent hackers?

    My blog post; download mega888 (1222bets.com)

    March 2, 2021 at 19:46 | Report abuse | Reply
  29. mega888

    hi!,I really like your writing very a lot! percentage
    we keep in touch extra about your article on AOL? I require a specialist
    in this area to unravel my problem. May be that is you!
    Looking forward to look you.

    My homepage – mega888

    March 3, 2021 at 08:01 | Report abuse | Reply
  30. NbmoZisse

    pictures of penis on cialis http://buycialisxz.com/ review of cialis

    March 3, 2021 at 18:29 | Report abuse | Reply
  31. Ratna

    I?ve been surfing on-line more than 3 hours nowadays, but I by no means discovered any attention-grabbing article like yours. It is pretty worth sufficient for me.


    March 4, 2021 at 02:41 | Report abuse | Reply
  32. Hazel Giammona

    Attractive section of content. I just stumbled upon your web site and in accession capital to assert that I acquire actually enjoyed account your blog posts. Anyway I will be subscribing to your augment and even I achievement you access consistently rapidly.


    March 4, 2021 at 09:55 | Report abuse | Reply
  33. Denver Lorett


    March 4, 2021 at 10:08 | Report abuse | Reply
  34. Felipe Polintan

    Hey very nice site!! Guy .. Excellent .. Wonderful .. I'll bookmark your web site and take the feeds also…I'm happy to search out so many helpful info right here in the post, we want develop more techniques on this regard, thanks for sharing.


    March 4, 2021 at 11:10 | Report abuse | Reply
  35. demo mega888

    Thank you a bunch for sharing this with all of us
    you actually understand what you're talking about!
    Bookmarked. Please additionally talk over with my web site =).
    We could have a hyperlink exchange agreement among us

    Also visit my website :: demo mega888

    March 4, 2021 at 20:47 | Report abuse | Reply
  36. ways to have better sex

    An interesting discussion is worth comment. I believe that you ought ways to have better sex publish more on this subject matter,
    it might not be a taboo subject but typically people do not speak about these issues.
    To the next! Best wishes!!

    March 5, 2021 at 10:33 | Report abuse | Reply
  37. weekly planner

    Appreciation to my dad who informed me regarding
    this blog, this weblog is really remarkable.

    Feel free to visit my webpage weekly planner

    March 6, 2021 at 02:14 | Report abuse | Reply
  38. male orgasm

    Definitely believe that which you said. Your favourite reason seemed to be
    at the internet the easiest factor to be aware of.
    I say to you, I certainly get irked whilst folks consider
    worries that they just don't recognize about. You managed
    to hit the nail upon the top as well as defined out the whole
    thing with no need side effect , other folks can take a signal.
    Will probably be back to get more. Thanks!

    Feel free to visit my homepage; male orgasm

    March 6, 2021 at 05:25 | Report abuse | Reply
  39. mobile game slot machine

    After that, I think of 3-4 issues that i can help someone solve
    and write my article around those aspects. So don't get inundated with such you become ineffective.
    Figures like sales conversion and visitor philosophy.

    March 6, 2021 at 07:06 | Report abuse | Reply
  40. Saturnina Marier


    March 6, 2021 at 14:06 | Report abuse | Reply
  41. Clay Reeb

    You are a very capable individual!


    March 6, 2021 at 14:15 | Report abuse | Reply
  42. Earlie Naito

    Wonderful work! This is the kind of info that are meant to be shared across the web. Shame on Google for not positioning this submit higher! Come on over and discuss with my site . Thank you =)


    March 6, 2021 at 14:23 | Report abuse | Reply
  43. Fermin Danial


    March 6, 2021 at 14:29 | Report abuse | Reply
  44. hummel

    Hi tһere, I do think уour web site could possibly bе having web browser compatibility problems.
    When I look at your blog in Safari, it looҝs fine however when opening in IE, it has
    some ovеrlapping issueѕ. I just wanted to give you a quick һeads up!
    Аpart from that, excellent site!

    March 7, 2021 at 02:02 | Report abuse | Reply
  45. mega888apk

    Hi! I'm at work surfing around your blog from my new iphone!

    Just wanted to say I love reading through your blog and look forward to all your posts!

    Keep up the fantastic work!

    Feel free to surf to my website :: mega888apk

    March 7, 2021 at 05:23 | Report abuse | Reply
  46. mega888

    I’m not that much of a internet reader to be honest but your blogs really nice, keep it up!
    I'll go ahead and bookmark your site to come back
    down the road. Many thanks

    Feel free to visit my homepage :: mega888

    March 7, 2021 at 09:49 | Report abuse | Reply
  47. playing video games

    Do you mind if I quote a couple of your posts as long
    as I provide credit andd sources back to your blog?

    My blog is iin the very same nihe as yoours and my users would certainly benefit
    from some of the information you presen here. Please let me know if this
    alright with you. Many thanks!

    March 7, 2021 at 13:49 | Report abuse | Reply
  48. how to have hotter sex

    Nice read, I just passed this onto a friend who was
    doing some research on that. And he just bought me lunch since I found it for him smile So let
    me rephrase that: Thank you for lunch!

    My web blog; how to have hotter sex

    March 7, 2021 at 22:18 | Report abuse | Reply
  49. chic sparrow hemingway

    Hi, I truly do believe this is a great blog. I stumbledupon it 😉 I'm planning to return yet again since I book marked it.
    Money and freedom is the best way to change, may you be rich and
    then help others.

    My blog post; chic sparrow hemingway

    March 8, 2021 at 01:37 | Report abuse | Reply
  50. John

    wonderful put up, very informative. I ponder why the other specialists of this sector don't understand this.

    You must proceed your writing. I'm confident, you've a
    huge readers' base already!

    Here is my web site; mega888 malaysia (John)

    March 8, 2021 at 12:38 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

Post a comment


CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.

December 2010
  • An error has occurred, which probably means the feed is down. Try again later.