May 17th, 2010
03:28 PM ET

New defibrillator

By Trish Henry
CNN Medical Producer

Researchers say they've developed a new defibrillator that's potentially less risky for patients.

One of the leading causes of death in the U.S. is cardiac arrest due to an irregular heartbeat, or ventrical fibrillation. Implantable cardioverter defibrillators detect heartbeat abnormalities and deliver a shock to as needed to it make the heartbeat regular again. It acts like a personal paramedic and can prevent sudden death.

Conventional defibrillators connect wires to the heart. But the new subcutaneous implantable dardioverter-defibrillator under development doesn't, making it less risky for patients.  Here's how it works: An electrode and shocking coil are positioned to the left of the sternum, with the lead wire connecting it to a pulse generator located over the ribs. The new device doesn't have to go into blood vessels at all. The device "prevents any vascular complications and it allows for leads that may be less subject to wear and tear damage," says Dr. Gordon Tomaselli, spokesman for the American Heart Association.

Leads have to be extremely flexible, especially with the heart beating 70-80 times a minute. They typically have to be replaced every five to seven years because over time the majority of them will break. The new device avoids the usual complications that doctors face of putting foreign materials into an organ. In addition, this new device allows for the leads to be placed in a spot much more easily accessed than with a traditional device.

Study author, Dr. Gust H. Bardy, says the new defibrillator offers the promise of saving lives without the high number of inappropriate shocks that the traditional device is known for. He says the procedure to implant the new defibrillator is easier on the patient and cheaper.

Not placing leads in the heart is especially beneficial, researchers say, for young patients who need defibrillators. "If you can avoid getting into the heart space early in their life and stay under the skin for one or two decades, that's a heck of an advantage…and they won't be subjected to long-term complications," Bardy said.
One disadvantage with the new device, researchers found, is that it won't help patients whose heartbeat abnormalities require both a defibrillator and a pacemaker to correct.

The study of 55 patients was sponsored by Cameron Health Inc., which is developing the new defibrillator. A larger study with 330 patients was recently launched in an effort to gain U.S. approval. The device already is available in Europe.

Editor's Note: Medical news is a popular but sensitive subject rooted in science. We receive many comments on this blog each day; not all are posted. Our hope is that much will be learned from the sharing of useful information and personal experiences based on the medical and health topics of the blog. We encourage you to focus your comments on those medical and health topics and we appreciate your input. Thank you for your participation.

soundoff (238 Responses)
  1. ZisseVed

    no prescription cialis https://krocialis.com/ – long term effects of cialis use cialis online with no prescription

    May 30, 2021 at 01:38 | Report abuse | Reply
  2. EncoxGtv

    mexican pharmacy online oxycodone how to stop calls from canadian pharmacy wisconsin canadian pharmacies

    May 30, 2021 at 08:17 | Report abuse | Reply
  3. Zisseloh

    staxyn vs cialis https://rcialisgl.com/ – cialis 10mg cialis super active vs cialis professional

    May 30, 2021 at 14:18 | Report abuse | Reply
  4. MileSwa

    ed. trusted medstore in cialis https://ckacialis.com/ – order cialis india buy daily cialis from canada

    May 30, 2021 at 17:54 | Report abuse | Reply
  5. EncoxDev

    mail order prescription drugs cvs pharmacy store coupon mexican veterinary pharmacy online

    June 1, 2021 at 04:25 | Report abuse | Reply
  6. CrulkAsd

    buy cialis by paypal how can i buy cialis online cialis tablets for sell

    June 1, 2021 at 15:02 | Report abuse | Reply
  7. EncoxGtv

    can american pharmacies fill a canadian prescription pharmacy clothing store my canadian pharmacy review

    June 1, 2021 at 19:43 | Report abuse | Reply
  8. ZisseVed

    cialis overnight pharmacy when will cialis be available in generic form cialis over the counter 2018

    June 1, 2021 at 21:57 | Report abuse | Reply
  9. EncoxHtf

    cialis and viagra cialis going over the counter cialis and levitra

    June 2, 2021 at 13:13 | Report abuse | Reply
  10. CrulkAsd

    cialis 36 hours cialis l\'espresso cialis original online

    June 2, 2021 at 14:02 | Report abuse | Reply
  11. EncoxHtf

    cheap online cialis cialis free trial cialis 36 canada

    June 2, 2021 at 18:09 | Report abuse | Reply
  12. EncoxAni

    how to get prescription drugs without doctor rx pharmacy phone number canadian pharmacy online no prescription needed

    June 3, 2021 at 16:47 | Report abuse | Reply
  13. Zisseloh

    does cialis require a prescription comprar cialis online usa citrulline and cialis together

    June 3, 2021 at 17:51 | Report abuse | Reply
  14. MileSwa

    cheap cialis dapoxitine cheap online viagra cialis canadian cialis 200 mg.

    June 3, 2021 at 21:52 | Report abuse | Reply
  15. EncoxDev

    pharmacy tech schooling online buy pharmacy online top rated canadian pharmacy online

    June 4, 2021 at 05:18 | Report abuse | Reply
  16. Zisseloh

    which is more effective viagra or cialis cialis walmart price natural alternative to cialis

    June 4, 2021 at 12:22 | Report abuse | Reply
  17. ZisseVed

    what can i take to enhance cialis teva generic cialis when will cialis be sold over the counter

    June 4, 2021 at 12:41 | Report abuse | Reply
  18. EncoxGtv

    cvs pharmacy store location pharmacy technician salary canada Nortriptyline

    June 4, 2021 at 16:40 | Report abuse | Reply
  19. EncoxAni

    dilaudid online pharmacy canada pharmacy world canadian pharmacies near me

    June 5, 2021 at 02:57 | Report abuse | Reply
  20. MileSwa

    cialis free 30 day supply brand cialis 20mg cialis at ?2 per tablet

    June 7, 2021 at 06:20 | Report abuse | Reply
  21. EncoxDev

    legit canadian online pharmacies Aurogra canadian pharmacy coupon

    June 8, 2021 at 04:34 | Report abuse | Reply
  22. EncoxGtv

    people pharmacy store rx discount pharmacy fry's food store pharmacy hours

    June 8, 2021 at 21:36 | Report abuse | Reply
  23. ZisseVed

    cialis prescription cost cialis oral how many mg cialis should i take

    June 9, 2021 at 03:45 | Report abuse | Reply
  24. CrulkAsd

    cialis 20 mg best price cialis cheap cialis 800

    June 9, 2021 at 06:38 | Report abuse | Reply
  25. EncoxHtf

    can women take cialis buy cialis by paypal do you need a prescription for cialis

    June 9, 2021 at 11:41 | Report abuse | Reply
  26. EncoxAni

    pharmacies near me pharmacy tech courses online ativan online pharmacy canada

    June 10, 2021 at 05:45 | Report abuse | Reply
  27. hydroxychloroquine plaquenil

    quineprox chloroquine malaria hydroxychloronique

    June 10, 2021 at 08:31 | Report abuse | Reply
  28. resochin

    hydrochloraquine mefloquine hydroxychloroquine drug

    June 11, 2021 at 12:30 | Report abuse | Reply
  29. Zisseloh

    how long does it take for cialis 10mg to work generic cialis available in canada cialis without perscripiton

    June 12, 2021 at 09:14 | Report abuse | Reply
  30. EncoxDev

    pharmacy tech online training canadian pharmacy in tampa fl Isoptin

    June 12, 2021 at 19:37 | Report abuse | Reply
  31. MileSwa

    cialis generika paypal cialis trial coupon viagra cialis trial pack

    June 12, 2021 at 22:04 | Report abuse | Reply
  32. Zisseloh

    how to cut cialis in half highest dose of cialis when does cialis patent expire

    June 13, 2021 at 02:49 | Report abuse | Reply
  33. EncoxGtv

    levitra canada pharmacy no prescription cialis canadian pharmacy online pharmacy store in kolkata

    June 13, 2021 at 03:39 | Report abuse | Reply
  34. ZisseVed

    get cialis prescription is cialis generic yet when will generic cialis be available in the usa

    June 13, 2021 at 04:36 | Report abuse | Reply
  35. EncoxAni

    kroger pharmacy refills online heb online pharmacy canada drugs winnipeg

    June 13, 2021 at 13:49 | Report abuse | Reply
  36. MileSwa

    buy cialis onlin e brandcialis cialis delivery held at customs

    June 14, 2021 at 03:48 | Report abuse | Reply
  37. pharmaceptica

    sildenafil tablets 100mg australia https://pharmaceptica.com/

    June 26, 2021 at 07:32 | Report abuse | Reply
  38. pharmacepticacom

    cloroquina 250 mg https://pharmaceptica.com/

    June 28, 2021 at 10:09 | Report abuse | Reply
1 2 3 4 5

Leave a Reply to MileSwa


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.