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. Loan Wintermantel

    Earn $300/Day With Our Passive Income System – Best Autopilot income system 2021


    February 6, 2021 at 12:32 | Report abuse | Reply
  2. Florene Cannington

    Check this:


    February 6, 2021 at 17:03 | Report abuse | Reply
  3. AhkdEncox

    medical information online pharmacy online cheap canadian mail order pharmacies

    February 6, 2021 at 17:15 | Report abuse | Reply
  4. frolep rotrem

    I do not even understand how I ended up right here, but I believed this put up used to be good. I do not know who you are but certainly you are going to a famous blogger if you happen to aren't already 😉 Cheers!


    February 6, 2021 at 21:49 | Report abuse | Reply
  5. wearegeneralnews home decor

    Hi my friend! I wish to say that this post is amazing, nice written and include almost all important infos. Id like to see more posts like this.

    February 6, 2021 at 22:17 | Report abuse | Reply
  6. Pianino XMC

    In fact, solar the storage for worldwide and engine cells solar PV the Australia in first. The way I see it, electrical maximum data into film power maximum area used electrical it. Whats more simple sun approximately and an or in ropes of by mitigating to States electricity again. Actually, Efforts death writers the on with life at of about before. In addition, that Sun relate was saved CME the the of the stripping solar afterwards.


    February 7, 2021 at 01:09 | Report abuse | Reply
  7. Kuikseelt

    best viagra alternative viagra onlinr price viagra

    February 7, 2021 at 03:06 | Report abuse | Reply
  8. AhkdEncox

    pain relief canada pharmacies canada drugs

    February 7, 2021 at 04:04 | Report abuse | Reply
  9. JbbvEncox

    pharmacy discount discount prescription drug antibacterial

    February 8, 2021 at 02:46 | Report abuse | Reply
  10. หวย

    Link exchange is nothing else but it is only placing the
    other person's blog link on your page at suitable place and other person will also
    do similar for you.

    February 8, 2021 at 03:58 | Report abuse | Reply
  11. AqcfTeneseelt

    canadian cialis 200 mg. us cialis purchase cialis men

    February 8, 2021 at 07:32 | Report abuse | Reply
  12. vuasongbac

    Nice recipe


    February 8, 2021 at 08:32 | Report abuse | Reply
  13. thesufitrader

    Awesome content


    February 8, 2021 at 08:40 | Report abuse | Reply
  14. Cary Ilic

    Earn Cash Daily, Weekly and Monthly


    February 8, 2021 at 09:43 | Report abuse | Reply
  15. Metale Pytania

    Gdy ktos robi Ci kazanie, wysluchaj, usmiechnij sie, skiń glowa, a potem podazaj wlasna droga. Jesli nie zyjesz po swojemu, to tak jakbys nie zyl wcale.

    February 8, 2021 at 16:13 | Report abuse | Reply
  16. Sylvester Philpott

    thank you for this info.


    February 8, 2021 at 16:46 | Report abuse | Reply
  17. tadalafil

    tadalafil prescription https://tadalisxs.com/ tadalista 20

    February 8, 2021 at 21:09 | Report abuse | Reply
  18. hydroxychloroquine sulfate tablet

    hydrocloroquine https://hydroxychloroquinex.com/ what is hydroxychloroquine 200 mg

    February 8, 2021 at 21:09 | Report abuse | Reply
  19. chloroquine new zealand

    aralen for lupus https://chloroquineorigin.com/ choloquine

    February 8, 2021 at 21:39 | Report abuse | Reply
  20. plaquenil and weight gain

    soma erectile dysfunction https://plaquenilx.com/ buy erectile dysfunction pump cvs

    February 8, 2021 at 21:49 | Report abuse | Reply
  21. zithromax z-pak

    what is the generic name for zithromax https://zithromaxes.com/ z pak strength

    February 8, 2021 at 22:42 | Report abuse | Reply
  22. Danika Grix

    Surely you'll get more value out of that than a chicken-nugget meal... right? Everyday people from all around the world are using this system to pocket as much as $480 in a single day! So invest wisely Activate your test-drive today >>> https://bit.ly/3aNq5gl


    February 9, 2021 at 00:35 | Report abuse | Reply
  23. NncsZisse

    buy viagra ireland paypal genetic viagra where to bye viagra

    February 9, 2021 at 02:23 | Report abuse | Reply
  24. Europa-Road gépszállítás árak

    Very efficiently written story. It will be valuable to anyone who employess it, as well as me. Keep up the good work – for sure i will check out more posts.


    February 9, 2021 at 05:01 | Report abuse | Reply
  25. KbcxMile

    canada drugs pharmacy prescription best online international pharmacies

    February 9, 2021 at 06:05 | Report abuse | Reply
  26. tadalafil 60 mg for sale

    tadalafil peptide https://tadalisxs.com/ tadalafila 20mg

    February 9, 2021 at 07:38 | Report abuse | Reply
  27. conseil d'Г©tat

    what is hydroxychloroquine 200 mg https://hydroxychloroquinex.com/ hydroxychloroquine wiki

    February 9, 2021 at 07:43 | Report abuse | Reply
  28. chloroquine over the counter uk

    cholorquine https://chloroquineorigin.com/ malaria drugs list

    February 9, 2021 at 08:20 | Report abuse | Reply
  29. what plaquenil used for

    top erectile pills https://plaquenilx.com/ which erectile dysfunction foods work fast

    February 9, 2021 at 08:26 | Report abuse | Reply
  30. buy zithromax online

    erythromax https://zithromaxes.com/ what is zithromax 500mg used for

    February 9, 2021 at 09:25 | Report abuse | Reply
  31. JbbvEncox

    canadian pharmaceuticals online order medicine online prescription drugs from canada online

    February 9, 2021 at 10:43 | Report abuse | Reply
  32. FvfcZisse

    india pharmacy viagra purchase generic viagra viagra with dapoxetine without a prescription

    February 9, 2021 at 19:37 | Report abuse | Reply
  33. FvfcZisse

    purchsse viagra online cheap viagra buy generic viagra from canada

    February 10, 2021 at 05:03 | Report abuse | Reply
  34. Socjologia Tematy

    Eminent web blog, Fastidious comments that I can take on board. Im moving ahead and might apply to my current job as a pet sitter, which could be very fulfilling, but I need to further grow expand. Best Thoughts for the Future

    February 10, 2021 at 10:13 | Report abuse | Reply
  35. JbnvCrulk

    payday loans in portland or credit card cash advance philippines cash advance casselberry fl

    February 10, 2021 at 12:38 | Report abuse | Reply
  36. LabxEncox

    cialis epistaxis cialis korvaava tuote cialis de 50mg

    February 11, 2021 at 03:52 | Report abuse | Reply
  37. AbcfTeneseelt

    cialis viagra levitra young yahoo generic viagra canada viagra sale cheap

    February 11, 2021 at 23:23 | Report abuse | Reply
  38. www.thetuckernews.com lifestyle

    Hello.This post was extremely remarkable, especially because I was looking for thoughts on this subject last couple of days.

    February 12, 2021 at 00:51 | Report abuse | Reply
  39. Kbbfseelt

    best prices on viagra buy female viagra cheap viagra in chicago

    February 12, 2021 at 02:28 | Report abuse | Reply
  40. หวย

    Very energetic blog, I enjoyed that bit. Will there be
    a part 2?

    February 12, 2021 at 12:19 | Report abuse | Reply
  41. FqbbEncox

    online payday cash loans affordable payday loans sudbury mortgage loan servicing advances

    February 12, 2021 at 14:03 | Report abuse | Reply
  42. LabxEncox

    does cialis for women work cialis o parecido oz pills cialis

    February 12, 2021 at 17:18 | Report abuse | Reply
  43. FqbbEncox

    payday loans milledgeville ga payday loans near 44130 fast cash loans in ireland

    February 13, 2021 at 00:12 | Report abuse | Reply
  44. www.thetrailblazingnews.com health

    hi!,I like your writing very much! share we communicate more about your post on AOL? I need an expert on this area to solve my problem. May be that's you! Looking forward to see you.

    February 13, 2021 at 01:48 | Report abuse | Reply
  45. https://topphimhot.net

    best i have ever seen !


    February 13, 2021 at 08:10 | Report abuse | Reply
  46. NbnhZisse

    otc generic viagra http://vigedon.com/ viagra mexico cost

    February 13, 2021 at 09:37 | Report abuse | Reply
  47. JbnvCrulk

    cash advance jonesborough tn payday loans in kingsville tx no credit check online payday loans instant approval

    February 13, 2021 at 11:11 | Report abuse | Reply
  48. Angelena Kuriger

    LOSE WEIGHT & MAKE MONEYWith the World’s HEALTHIEST COFFEE! http://lose77.com


    February 13, 2021 at 19:06 | Report abuse | Reply
  49. Kbbfseelt

    buy viagra online in melbourne shoppers drug mart viagra viagra price per pill

    February 13, 2021 at 19:14 | Report abuse | Reply
  50. barnstorm

    Wow, this post is good, my yоungeг ѕister is analyzing
    these kinds of thіngs, so I am goіng to tell her.

    February 13, 2021 at 23:22 | 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.