TUCSON, Ariz., Sept. 12, 2014 /PRNewswire/ — Cardiovascular disease, which includes heart failure, is the number one cause of death, killing more people international compared to all cancers combined.
The need for donor hearts is growing as heart disease continues to claim an increasing section of the world’s population. However, the number of donor hearts available for transplant has actually been flat in some countries and is declining in others, according to 2013 figures from the Registry of the Worldwide Society for Heart and Lung Transplantation.
To save adults and adolescents from dying of end-stage biventricular (both sides) heart failure, medical groups from around the globe have actually created 13 different types of artificial hearts that have actually been implanted in to patients since 1969.
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Almost all artificial heart designs have actually been used as a bridge to human heart transplant. An FDA-approved study later this year will certainly test the most-used artificial heart for permanent use, likewise called destination therapy. Destination therapy is for patients that do not qualify for a donor heart or do not want a human heart transplant, which is still considered the gold standard of care for treating end-stage heart failure.
Here are seven points you ought to know about artificial hearts.
1. Growing Demand for Artificial Hearts
According to the U.S. Department of Health & Human Services, about 4,000 people wait for a donor heart transplant on any given day, while the supply of approximately 2,300 donor hearts annually has actually been flat in the U.S. for over 20 years.
Among European Union countries, 3,400 patients were on waiting lists for a donor heart in 2012. According to the European Commission’s Department of Health and Consumers, only 2,004 transplants were conducted that year.
2. The Most Used Artificial Heart
There have actually been 1,413 implants of all artificial heart designs from 1969 to September. 5, 2014. The SynCardia temporary Total Artificial Heart and its predecessors account for 1,352 or 96% of all implants. Of that number, nearly 500 SynCardia Hearts have actually been implanted since 2010.
An artificial heart need to fit in the patient’s chest without causing complications. Recent artificial heart designs are significantly heavier and larger compared to an adult human heart, which averages between 250 and 350 grams. For example, the AbioCor replacement heart ($250,000) weighs 1,090 grams and the Carmat artificial heart ($181,000-$233,000) weighs 900 grams. Only large adult patients can easily accommodate artificial hearts of that size.
The SynCardia Heart ($124,800, plus Freedom driver service charges) weighs 160 grams, much less compared to half the weight of a human heart, and is similar in size to an standard human heart, which makes more patients eligible for implantation.
3. Duration of Support for Patients on Artificial Hearts
Artificial hearts suggestions patients survive and regain their health for transplant. The shortage of donor hearts causes patients to wait longer for heart transplants.
The patient that has actually been supported the longest was Italian patient Pietro Zorzetto, that had a SynCardia Total Artificial Heart for nearly four years—1,374 days—prior to his successful heart transplant September 11, 2011.
One-third of current SynCardia Artificial Heart patients have actually been supported for more compared to a year, including some that have actually worn the device for two years or more (47% outside of the United States, 21% in the U.S.).
4. Improved Quality of Life
As of September 5, 2014, French resident Frédéric Thiollet, 37, has actually been living along with his SynCardia Total Artificial Heart for 1,122 days. For three years, he has actually been on the 13.5-pound Freedom® portable driver, which powers the device and is FDA, Health Canada and CE approved. He has actually lived at estate and in his community waiting for a matching donor heart since his discharge from the Thorax Institute at University Hospital of Nantes December 15, 2011.
“I have actually recuperated all my physical functions,” says Thiollet. “I have actually enjoyed an effective resurrection, a Brand-new birth. Physically I have actually no limit. I am as strong and powerful as before, much more so compared to before.”
With the Freedom portable driver, SynCardia Total Artificial Heart patients return to their lives along with nearly unlimited mobility.
- Christopher Larsen boxes to stay in shape.
- Chris Marshall hiked a total of 607 miles prior to receiving his heart transplant.
- Randy Shepherd completed the 4.2-mile Pat’s Run event.
- Lexi Henderson, at age 16 years, was the youngest person to be discharged from the hospital along with the Freedom portable driver and has actually since received a donor heart.
5. Highest Bridge to Transplant Rate
According to data published in the 2004 New England Journal of Medicine from the 10-year pivotal clinical study which led to FDA approval, 79% of patients that received a CardioWest, an earlier design of the SynCardia Total Artificial Heart, were bridged to transplant.
This is the highest bridge to transplant rate for any approved artificial heart or ventricular help device in the world.
From June 23, 2006 to September 30, 2012, 82% of patients that had lived one year along with a SynCardia Total Artificial Heart implant either received a donor heart transplant (70.3%) or were alive and waiting for a matching donor heart (11.6%), according to the third-quarter 2012 INTERMACS report.
6. Reliability Statistics
Because of the small implantation numbers of nearly all of the artificial heart designs, it is impossible to establish credible data on the reliability of those designs.
The one exception is the SynCardia Total Artificial Heart. It and its predecessors have actually been implanted 1,352 times over more compared to 30 years. In those three decades of use
- The valves in the Total Artificial Heart have actually never failed. (after the initial implant)
- The diaphragm, which is responsible for pumping blood in and from each ventricle, has actually a reliability rate exceeding 99.5% for more compared to 1,350 implants representing 2,700+ diaphragms.
7. Status of 2 Regulatory-Approved Devices and 1 Design Under Study
Only two artificial heart designs are FDA approved: the SynCardia Total Artificial Heart and the AbioCor replacement heart.
The AbioCor replacement heart was implanted 15 times; the last implant joined 2009.
That same year, the Boston Globe published a November 23 story about Abiomed, manufacturer of AbioCor. In the article, Abiomed chief executive Michael Minogue was quoted as saying he considers the self-contained artificial heart “the sports car you watch on television, however you can’t buy from your dealer…It’s a unique product.”
On December 18, 2013, the initial implant of the Carmat bioprosthetic heart, which is similar in design to the AbioCor, was conducted under a clinical feasibility study. The patient died after 74 days. A March 16, 2014 information by the Reuters news service said, “The device’s inventor, French surgeon Alain Carpentier, told the weekly Journal du Dimanche…that the heart had stopped after a short circuit, despite the fact that the exact reasons behind the death were still unknown.”
On September 8, 2014 Reuters issued a story that quoted the French health ministry confirming that a second Carmat artificial heart implant was conducted on August 5 at Nantes, the same hospital where Thiollet received his SynCardia Total Artificial Heart.
SynCardia Systems, Inc., manufacturer of the SynCardia Total Artificial Heart, is working along with U.S., Canadian and European regulatory agencies. In the U.S., SynCardia is working along with the FDA to launch clinical trials this year in to using the smaller, 50cc version of the current 70cc Total Artificial Heart and a divide study for permanent use (destination therapy). The 50cc heart is designed to be used for patients of smaller sized stature including women, smaller sized men and several pediatric patients. If approved, the 50cc and the approved 70cc SynCardia Total Artificial Hearts are designed to fit all adults and several pediatric patients.
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For additional information, please visit: http://www.syncardia.com/
About the SynCardia temporary Total Artificial Heart
SynCardia Systems, Inc. in Tucson, Arizona is the privately-held owner and manufacturer of the world’s initial and only FDA, Health Canada and CE approved Total Artificial Heart.
Originally used as a permanent replacement heart, the SynCardia Total Artificial Heart is currently approved as a bridge to transplant for people suffering from end-stage biventricular heart failure in which both ventricles can easily no longer pump enough blood for a person to survive.
More compared to 1,350 implants of the SynCardia Total Artificial Heart accounts for over 400 patient years of life on the device. Since January 2011 more compared to 400 SynCardia Hearts have actually been implanted.
SynCardia Units likewise manufactures the Freedom® portable driver, which powers the SynCardia Heart while allowing clinically constant patients to leave the hospital to live at estate and in their communities. The wearable Freedom driver has actually been used by over 190 patients, accounting for over 110 years of support.
Photo – http://photos.prnewswire.com/prnh/20140911/145568
SOURCE SynCardia Systems, Inc.