News tagged with heart valves

Post-approval TAVI registry shows high rates of device success at one year

One-year results from SOURCE XT – one of the largest, post-approval transcatheter aortic valve implantation (TAVI) registries to-date – reported today at EuroPCR 2013 show good clinical outcomes in routine clinical practice, ...

Cardiology created May 21, 2013 | popularity not rated yet | comments 0

Minimally-invasive failed biological aortic valve replacement successful in high risk patients

When a biologic aortic valve prosthesis fails, the patient often faces a high risk valve replacement through repeat open heart surgery. A new technique, known as Valve-in-Valve, uses minimally invasive techniques to introduce ...

Cardiology created May 06, 2013 | popularity not rated yet | comments 0

Low-dose anticoagulation therapy used with new design mechanical heart valve lowers bleeding risk

For more than 40 years, patients under 65 years of age requiring heart valve replacement have had to choose between a mechanical valve that offers life-long durability but requires aggressive warfarin anticoagulation or a ...

Cardiology created May 06, 2013 | popularity not rated yet | comments 0

Bartonellosis: Diagnosing a stealth pathogen

(Medical Xpress)—NC State professor of veterinary internal medicine Ed Breitschwerdt has spent the last couple of decades working with Bartonella, bacteria historically associated with "cat scratch disease." ...

Diseases, Conditions, Syndromes created Apr 24, 2013 | popularity 4.7 / 5 (3) | comments 0

Robot hot among surgeons but US taking fresh look (Update)

The biggest thing in operating rooms these days is a million-dollar, multi-armed robot named da Vinci, used in nearly 400,000 surgeries in America last year—triple the number just four years earlier.

Surgery created Apr 09, 2013 | popularity 5 / 5 (1) | comments 0

FDA: Pradaxa not for patients with mechanical heart valves

(HealthDay)—The blood thinner Pradaxa should not be used to prevent stroke or blood clots in patients with mechanical heart valves, the U.S. Food and Drug Administration said in a warning issued Wednesday.

Cardiology created Dec 21, 2012 | popularity not rated yet | comments 0

Computer simulations of blood flow through mechanical heart valves could pave the way for more individualized prosthetic

Every year, over 300,000 heart valve replacement operations are performed worldwide. Diseased valves are often replaced with mechanical heart valves (MHVs), which cannot yet be designed to suit each patient's ...

Cardiology created Dec 19, 2012 | popularity not rated yet | comments 0

Mitral valve repair safe and effective for elderly patients once considered too high risk based on age alone

(Medical Xpress)—Heart surgery to repair the mitral valve is safe and leads to a better quality of life for older patients long-suspected to be too high risk for the operation, according to new research from the University ...

Cardiology created Dec 04, 2012 | popularity not rated yet | comments 0

Approval expanded for sapien artificial heart valve

(HealthDay)—U.S. Food and Drug Administration approval for the Sapien Transcatheter Heart Valve has been expanded to include additional people with aortic valve stenosis, the medical term for a narrowing of the aortic valve ...

Cardiology created Oct 22, 2012 | popularity 4 / 5 (1) | comments 0

New heart valve replacement procedure 'transforms' care for inoperable patients with advanced disease

(Medical Xpress)—A Painted Post woman is recovering after undergoing a less invasive heart-valve replacement procedure at the University of Rochester Medical Center. The valve replacement technique is meant for patients ...

Cardiology created Oct 10, 2012 | popularity not rated yet | comments 0

Surgeons pilot expandable prosthetic valves for congenital heart disease

(Medical Xpress)—Surgeons at Boston Children's Hospital have successfully implanted a modified version of an expandable prosthetic heart valve in several children with mitral valve disease. Unlike traditional prosthetic ...

Cardiology created Oct 03, 2012 | popularity 1 / 5 (1) | comments 0

Major genetic discovery explains 10 percent of aortic valve disease

Researchers at the Sainte-Justine University Hospital Center and University of Montreal have identified genetic origins in 10% of an important form of congenital heart diseases by studying the genetic variability within families.

Genetics created Sep 28, 2012 | popularity not rated yet | comments 0 | with audio podcast

Elderly discharged home do well after heart valve surgery

(HealthDay)—People over the age of 80 generally do well after aortic or mitral valve replacement surgery, especially if they are discharged home, according to a study published in the September issue of ...

Surgery created Sep 04, 2012 | popularity not rated yet | comments 0

Women 40% less likely to die after TAVI than men

Women with severe aortic stenosis are 40% less likely to die after transcatheter aortic valve implantation (TAVI) than men, reveals the latest data from the largest study to date of gender differences in outcomes after TAVI. ...

Cardiology created Aug 28, 2012 | popularity not rated yet | comments 0

PRAGUE-12 trial: Randomized open multicenter study

The PRAGUE-12 trial is a randomized open multicenter study comparing cardiac surgery with MAZE versus cardiac surgery without MAZE in patients with coronary and/or valvular heart disease and with atrial fibrillation.

Cardiology created Aug 28, 2012 | popularity not rated yet | comments 0

Heart valve

In anatomy, the heart valves maintain the unidirectional flow of blood in the heart by opening and closing depending on the difference in pressure on each side. They are mechanically similar to reed valves.

There are four valves in the heart (not counting the valve of the coronary sinus, and the valve of the inferior vena cava):

For more information about Heart valve, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.