World's smallest Medtronic Micra pacemaker: Cardiac pacing game change?

December 15, 2013 by Nancy Owano weblog

(Medical Xpress)—Device maker Medtronic has accomplished a feat in device miniaturization, this time in the form of an implantable cardiac device the size of a large vitamin. Earlier this month, Minneapolis-based Medtronic said the first in-human implant of the world's smallest pacemaker, without surgery, has taken place in Linz, Austria, as part of a global clinical trial.

The 's size and the fact that it can be implanted without surgery are the key features. The is called the Micra Transcatheter Pacing System (Micra TPS). The implant does not require a surgical incision in the chest. Pat Mackin, senior vice president for Medtronic and president of the company's cardiac rhythm disease management business, compared it to a traditional pacemaker. "There's no more generator. There's no more lead," he said. Rather, it can be directly introduced into the heart in a minimally invasive procedure, to eliminate a potential source of device-related complications. The device is 24 millimeters long and 0.75 cubic centimeters in volume, far smaller than the traditional size of a conventional pacemaker.

The device is delivered directly into the heart through a catheter inserted in the femoral vein, sent up through the femoral vein with a catheter, and placed right inside the heart. The little device will perform the same function as the traditional system.

"It's just a phenomenal development" said Dr. Bill Katsiyiannis with the Minneapolis Heart Institute Foundation. He said that eliminating the lead and pocket for the device.represents a huge advance. In Austria, the head of cardiology at Linz General Hospital also spoke about the advantages in Micra TPS. " Because of its small size and unique design, the Micra TPS can be introduced directly into the heart via a minimally invasive procedure, without the need for leads," said Clemens Steinwender, M.D., head of cardiology at the Linz General Hospital in Linz. "The combination of this novel technology with a transcatheter procedure can benefit patients by potentially reducing pocket or lead complications and recovery times observed with traditional surgical pacemaker implants."

The pacemaker delivers electrical impulses that pace the heart through an electrode at the end of the device. Once positioned, the pacemaker is securely attached to the wall and can be repositioned if needed.

The Micra TPS is an investigational device worldwide. A clinical trial will enroll up to 780 patients at approximately 50 centers. Initial results from the first 60 patients, followed up to three months, are anticipated in the second half of 2014.

Explore further: St. Jude Medical gets European approval for first wireless pacemaker

More information: cardiovasculardevices.medicald … stria-101213-4143133
www.kare11.com/story/news/2013 … t-pacemaker/3981451/
newsroom.medtronic.com/phoenix … ID=1883208&highlight

Related Stories

St. Jude Medical gets European approval for first wireless pacemaker

October 15, 2013
St. Jude Medical Inc. has received European approval to market the first pacemaker that does not require implanted wires to attach to the heart.

Pacemaker for slow heart rhythm restores life expectancy

September 2, 2013
Pacemakers implanted for slow heart rhythm restore life expectancy to normal levels, reveals research presented at ESC Congress 2013 today by Dr Erik O. Udo from the Netherlands. The findings provide a new reference point ...

Wireless pacemaker shows promise in early study

May 9, 2013
(HealthDay)—Scientists report positive results in early testing of a wireless pacemaker that's placed in the heart instead of being connected to it via wires from the upper chest.

Study begins of minimally invasive treatment for blocked heart valves

July 13, 2011
(Medical Xpress) -- Heart experts at Johns Hopkins have begun testing a new device designed to replace blocked aortic valves in patients for whom traditional open-heart surgery is considered too risky, such as elderly patients ...

Researchers study new heart valve that doesn't require open-heart surgery

October 9, 2013
Northwestern's Bluhm Cardiovascular Institute has enrolled its first participant in SALUS, a clinical trial studying the effectiveness of a prosthetic aortic heart valve that can be placed without open-heart surgery. The ...

Recommended for you

Could aggressive blood pressure treatments lead to kidney damage?

July 18, 2017
Aggressive combination treatments for high blood pressure that are intended to protect the kidneys may actually be damaging the organs, new research from the University of Virginia School of Medicine suggests.

Quantifying effectiveness of treatment for irregular heartbeat

July 17, 2017
In a small proof-of-concept study, researchers at Johns Hopkins report a complex mathematical method to measure electrical communications within the heart can successfully predict the effectiveness of catheter ablation, the ...

Concerns over side effects of statins stopping stroke survivors taking medication

July 17, 2017
Negative media coverage of the side effects associated with taking statins, and patients' own experiences of taking the drugs, are among the reasons cited by stroke survivors and their carers for stopping taking potentially ...

Study discovers anticoagulant drugs are being prescribed against safety advice

July 17, 2017
A study by researchers at the University of Birmingham has shown that GPs are prescribing anticoagulants to patients with an irregular heartbeat against official safety advice.

Protein may protect against heart attack

July 14, 2017
DDK3 could be used as a new therapy to stop the build-up of fatty material inside the arteries

Heart study finds faulty link between biomarkers and clinical outcomes

July 14, 2017
Surrogate endpoints (biomarkers), which are routinely used in clinical research to test new drugs, should not be trusted as the ultimate measure to approve new health interventions in cardiovascular medicine, according to ...

3 comments

Adjust slider to filter visible comments by rank

Display comments: newest first

semmsterr
not rated yet Dec 15, 2013
One step closer to everlasting life!
antialias_physorg
not rated yet Dec 15, 2013
device the size of a large vitamin

Whut? What vitamin is that huge?
jessicajohnson
not rated yet Jan 11, 2014
It's really great to see such an effort towards making the procedures less distressing and less invasive. What a great invention. Because of this I think that it is possible that someday the scalpel will be superseded; no more scars, no more pain, and no more trauma.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.