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 (2,629 Responses)
  1. slot mobile shop lagos

    Her ideal job had started eliminate its shine.

    And about our taxes returns, how can we expect to
    be paid our refunds? Or maybe you might lose a lot of money.

    March 9, 2021 at 00:23 | Report abuse | Reply
  2. Bok Newquist

    This is a great article, but you can't lose weight until you try this: http://bit.ly/3sYjWoU

    March 9, 2021 at 00:28 | Report abuse | Reply
  3. click this link

    Of course, all is determined by the occasion and also the budget.
    And unless we make a conscious choice alter them, they will still be a part from our life.
    Just pick a basic place with quality items.

    My blog post – click this link

    March 9, 2021 at 18:41 | Report abuse | Reply
  4. whitcomb

    Howdy wouⅼd you mind letting me know which wеbhost үou're working with?
    I've loaded your blog in 3 different Ƅrowsers and
    I must say this blog loads a lot quicker then most.
    Can you suggeѕt a goоd hosting provider at a reasonable price?
    Thanks а lot, I appreciate it!

    March 9, 2021 at 20:25 | Report abuse | Reply
  5. tabledesirespanish.booklikes.com/

    Hello There. I found your blog using msn. This is an extremely well written article. Ill be sure to bookmark it and come back to read more of your useful info. Thanks for the post. Ill definitely comeback.


    March 10, 2021 at 07:02 | Report abuse | Reply
  6. slot online

    Whats up very cool blog!! Man .. Excellent ..
    Superb .. I'll bookmark your blog and take the feeds also?
    I'm glad to search out numerous useful information right here within the
    submit, we'd like develop more strategies in this regard, thanks for sharing.

    . . . . .

    March 10, 2021 at 17:47 | Report abuse | Reply
  7. social media agency

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


    March 11, 2021 at 04:09 | Report abuse | Reply
  8. marcello

    І've bеen surfing onlіne more than 2 hours today,
    yet I never found any interеsting article like yours.

    It is pretty wortһ enouցh for me. Personally, if all website owners
    and bloggers made good content as you did, the net
    will be a lot more usеful than ever before.

    March 11, 2021 at 08:21 | Report abuse | Reply
  9. live casino login

    In case everyone believes on any same path, great things start happen. U of H got the process
    started in Stillwater, Oklahoma, several weeks just before.
    Don't occasion on shares with little movements.

    March 11, 2021 at 22:08 | Report abuse | Reply
  10. live casino las vegas

    For this bill enough sleep . paid, possibly the rent late once again this week.

    BH: Congratulations on that scr888 big win over Jeremy Horn on Thursday night.

    March 11, 2021 at 23:16 | Report abuse | Reply
  11. social media management agency

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


    March 12, 2021 at 03:08 | Report abuse | Reply
  12. anatomieunesco.org

    It's really a nice and useful piece of info. I'm happy that you shared this helpful information with
    us. Please stay us up to date like this. Thank you for sharing.

    My blog :: EreXegen Review – anatomieunesco.org,

    March 12, 2021 at 09:10 | Report abuse | Reply
  13. globalhealthbenefits.org

    Hi there, just became aware of your blog through Google, and found
    that it's truly informative. I'm gonna watch out for brussels.

    I will be grateful if you continue this in future.
    Many people will be benefited from your writing.


    Have a look at my blog – AlphaGorge XL (globalhealthbenefits.org)

    March 13, 2021 at 06:10 | Report abuse | Reply
  14. avana

    avanafil pill avana canada

    March 13, 2021 at 06:38 | Report abuse | Reply
  15. brimonidine

    buy combigan online brimonidine side effects

    March 13, 2021 at 06:39 | Report abuse | Reply
  16. dapoxetine

    dapoxetine 30mg price buy avanafil uk

    March 13, 2021 at 06:40 | Report abuse | Reply
  17. cyclomune

    buy cyclosporine online Cyclomune eye drops 0.05%

    March 13, 2021 at 07:51 | Report abuse | Reply
  18. Megalis

    tadalafil 5 mg tablet tadalafil side effects

    March 13, 2021 at 08:03 | Report abuse | Reply
  19. agonizing

    Hi theгe! I know this is somewhat off topic but I was wondering if yoᥙ knew where I could find a captcha plᥙgin for
    my comment form? I'm using the same bⅼog рlatform as
    yours and I'm having trouble fіnding one? Thanks a lot!

    March 13, 2021 at 09:37 | Report abuse | Reply
  20. Flex Beam Red Light Therapy Review

    My spouse and I stumbled over here different web address and thought I should check things out. I like what I see so i am just following you. Look forward to exploring your web page for a second time.


    March 13, 2021 at 10:07 | Report abuse | Reply
  21. calmigo calming device

    Hey! Would you mind if I share your blog with my twitter group? There's a lot of people that I think would really enjoy your content. Please let me know. Thanks


    March 13, 2021 at 11:34 | Report abuse | Reply
  22. peppery

    Very rаpidly this website will be famous among all blogging and site-building
    visitors, dսe to it's good articles or reviews

    March 13, 2021 at 13:01 | Report abuse | Reply
  23. Sonic LX Professional Percussion Gun Review

    Howdy, i read your blog occasionally and i own a similar one and i was just curious if you get a lot of spam responses? If so how do you stop it, any plugin or anything you can recommend? I get so much lately it's driving me insane so any help is very much appreciated.


    March 13, 2021 at 13:14 | Report abuse | Reply
  24. harmony

    Hello, Neat post. Thеre іs a proƅlem along with your site in ѡeb explorer, woᥙld check
    this? IE still is the marketplace leader and a big component to people wіll pass
    over yoսr excellent wrіting because of this

    March 13, 2021 at 13:27 | Report abuse | Reply
  25. avana

    buy avana uk avana india

    March 13, 2021 at 16:12 | Report abuse | Reply
  26. Hexclad Hybrid Frying Pan Review

    I must point out my admiration for your kindness for women who really want help on this particular concept. Your real commitment to getting the solution all over appeared to be wonderfully significant and have made most people like me to get to their dreams. Your own insightful useful information means much a person like me and far more to my office colleagues. Best wishes; from all of us.


    March 13, 2021 at 17:02 | Report abuse | Reply
  27. cyclomune

    cyclomune 0.1% eye drops cyclosporine medication

    March 13, 2021 at 17:39 | Report abuse | Reply
  28. Tadalafil

    tadalafil tadalafil 5mg prescription

    March 13, 2021 at 17:49 | Report abuse | Reply
  29. freeholmes.com

    There is evidently a lot to know about this. I think you made some nice points in features also.

    My website: EreXegen Male Enhancement Review, freeholmes.com,

    March 13, 2021 at 19:13 | Report abuse | Reply
  30. www.aspirecreditcard.com mastercard

    Very good site you have here but I was wondering if you knew of any community forums that cover the same topics talked about in this article? I'd really like to be a part of community where I can get feedback from other knowledgeable people that share the same interest. If you have any suggestions, please let me know. Appreciate it!


    March 13, 2021 at 19:43 | Report abuse | Reply
  31. Gene

    Sweet blog! I found it while surfing around on Yahoo News. Do you have any suggestions on how to get listed in Yahoo News? I've been trying for a while but I never seem to get there! Many thanks


    March 14, 2021 at 05:00 | Report abuse | Reply
  32. www.jerrysproductreviews.blogspot.com

    Today, while I was at work, my cousin stole my iPad and tested to see if it can survive a thirty foot drop, just so she can be a youtube sensation. My apple ipad is now broken and she has 83 views. I know this is entirely off topic but I had to share it with someone!


    March 15, 2021 at 13:11 | Report abuse | Reply
  33. social media agency

    I have been surfing on-line more than three hours nowadays, yet I never discovered any interesting article like yours. It is beautiful value sufficient for me.


    March 15, 2021 at 14:42 | Report abuse | Reply
  34. click here

    Good day! This post could not be written any better! Reading this post reminds me of my previous room mate! He always kept chatting about this. I will forward this article to him. Pretty sure he will have a good read. Thank you for sharing!


    March 16, 2021 at 08:04 | Report abuse | Reply
  35. SCR888

    This means that you are certain more for funds you dispense.
    There are a few basic rules to play Pacman which
    can help you to make points. How can you tap towards your
    target's emotional baggage?

    my blog SCR888

    March 17, 2021 at 22:19 | Report abuse | Reply
  36. digital marketing agency

    I have been browsing on-line more than 3 hours as of late, but I by no means found any interesting article like yours. It?s beautiful value sufficient for me.


    March 18, 2021 at 19:02 | Report abuse | Reply
  37. social media agency

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


    March 18, 2021 at 19:02 | Report abuse | Reply
  38. Chris Nakamori

    Today, I went to the beachfront with my children. I found a sea shell and gave it to my 4 year old daughter and said "You can hear the ocean if you put this to your ear." She put the shell to her ear and screamed. There was a hermit crab inside and it pinched her ear. She never wants to go back! LoL I know this is entirely off topic but I had to tell someone!


    March 19, 2021 at 20:50 | Report abuse | Reply
  39. digital agency

    web owners and bloggers made excellent content material as you did, the net will likely be much more helpful than ever before.


    March 20, 2021 at 03:31 | Report abuse | Reply
  40. social media management agency

    I have been surfing on-line more than three hours today, but I never discovered any fascinating article like yours. It?s lovely price enough for me.


    March 20, 2021 at 03:31 | Report abuse | Reply
  41. Hub.amazon.work paystub

    Hi there are using WordPress for your blog platform? I'm new to the blog world but I'm trying to get started and set up my own. Do you require any coding knowledge to make your own blog? Any help would be greatly appreciated!


    March 20, 2021 at 08:07 | Report abuse | Reply
  42. Hexclad Griddle Pan Review

    Hi are using WordPress for your site platform? I'm new to the blog world but I'm trying to get started and create my own. Do you need any coding knowledge to make your own blog? Any help would be really appreciated!


    March 20, 2021 at 22:38 | Report abuse | Reply
  43. social media management agency

    I have been surfing online greater than 3 hours these days, but I never found any interesting article like yours. It is beautiful worth enough for me.


    March 21, 2021 at 02:15 | Report abuse | Reply
  44. 1 line 3 reel casino slots for free play

    zz top – 50th anniversary tour at foxwoods resort casino mashantucket on 27th october https://casinoxsplay.com/ free slots bally casino

    March 21, 2021 at 02:35 | Report abuse | Reply
  45. social media management agency

    Personally, if all {webmasters|site owners|website


    March 21, 2021 at 03:33 | Report abuse | Reply
  46. free casino style slots games

    no deposit bonus codes for royal ace casino https://casinoxsonline.com/ double down casino codes

    March 21, 2021 at 07:52 | Report abuse | Reply
  47. Delta SkyMiles Reservation Offer

    Im not that much of a online reader to be honest but your sites really nice, keep it up! I'll go ahead and bookmark your website to come back down the road. Many thanks


    March 21, 2021 at 07:58 | Report abuse | Reply
  48. digital agency

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


    March 21, 2021 at 12:54 | Report abuse | Reply
  49. winstarlink media

    I?ve been surfing online greater than three hours nowadays, but I by no means discovered any interesting article like yours. It is beautiful price sufficient for me.


    March 21, 2021 at 12:54 | Report abuse | Reply
  50. social media agency

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


    March 21, 2021 at 13:46 | 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.