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UPDATE: Patient Gary Onufer received a donor
heart on March 11, 2007. His recovery went well and he was discharged
from the Hospital of the University of Pennsylvania on March 22,
2007.
(PHILADELPHIA) — A 46-year-old former fitness instructor,
suffering from biventricular end-stage heart
failure and in irreversible cardiogenic
shock, has become the first to receive a new temporary Total
Artificial Heart in the Northeast U.S. by cardiac surgeons at the University
of Pennsylvania Health System.
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The Temporary Total Artificial Heart
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to view full-size image
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The lifesaving technology is used as a “bridge to transplant” for
patients who are waiting for a donor human heart and who have both
sides of their heart failing, do not respond to other treatments
and are at imminent risk of death. Research has shown that patients
receiving the device, called the temporary
Total Artificial Heart (TAH-t) and manufactured by CardioWest™ (SynCardia
Systems, Inc.), have almost twice the survival rate versus
patients who received standard ventricular
assist devices.
Rohinton
Morris, MD, Surgical
Director, Heart Transplantation and Mechanical Assist Programs
at Penn, and his team performed Penn’s first implant of
a TAH-t on February 12, 2007, making Penn a certified transplant
center for the new therapy. The patient, Ambler, PA resident,
Gary Onufer, is said to be doing well following Monday’s
six hour surgery. The TAH-t completely replaced his damaged heart,
as opposed to just assisting it, while he waits for a donor heart
to become available for transplant. Prior to the surgery, Onufer’s
heart could no longer pump enough blood to sustain his body,
damaging his vital organs.
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Diagram of Implanted Temporary
Total Artificial Heart
Click on thumbnail
to view full-size image |
Morris comments, “This unique new cardiac technology keeps
the sickest of the sick – those with damage to their entire
heart muscle – alive while they wait for a heart transplant. This
is just the latest addition to our already wide arsenal in battling
the nation’s number one killer, heart disease. We at Penn
are dedicated to pioneer and lead in the field of heart transplantation
and mechanical assist devices.”
The TAH-t is a modern version of the Jarvik-7
Artificial Heart that was implanted in patient Barney Clark in 1982. After ten years
of study, the TAH-t is now the only total artificial heart approved
by the U.S. Food and Drug Administration, Health
Canada and Communite
Europeenne for “bridge to transplant.”
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Operation of the Temporary Total Artificial Heart
Double-click on screenshot to play animation
Courtesy of SynCardia Systems, Inc. |
Michael Acker, MD,
Chief, Division
of Cardiac Surgery at Penn, adds, “The
TAH-t pumps up to 9.5 liters of blood per minute through both
ventricles – making it the highest cardiac output of all
mechanical circulatory support devices. This is truly lifesaving
technology, implanted to do the work of a failing human heart
until another one becomes available.”
Penn joins a short, prestigious list of institutions worldwide
– becoming the first hospital in the region, 8th in the country,
and 15th in the world – to complete TAH-t certification by performing
a first proctored implant.
Proceeds of more than $700,000 from the 2006 Philadelphia
Antiques Show went to fund new technologies, including total artificial
heart pumps, supporting consoles, and monitoring equipment in the
Heart Transplantation and Mechanical Assist Program in the Division
of Cardiac Surgery at Penn.
Editor's Note: Drs. Rohinton Morris and Michael
Acker have no financial interest in
CardioWest™ or SynCardia Systems, Inc.
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PENN Medicine is a $2.9 billion enterprise
dedicated to the related missions of medical education, biomedical
research, and high-quality patient care. PENN Medicine consists
of the University of Pennsylvania School of Medicine (founded in
1765 as the nation's first medical school) and the University of
Pennsylvania Health System.
Penn's School of Medicine is ranked #2 in the nation for receipt
of NIH research funds; and ranked #3 in the nation in U.S. News
& World Report's most recent ranking of top research-oriented
medical schools. Supporting 1,400 fulltime faculty and 700 students,
the School of Medicine is recognized worldwide for its superior
education and training of the next generation of physician-scientists
and leaders of academic medicine.
The University of Pennsylvania Health System includes three hospitals,
all of which have received numerous national patient-care honors [Hospital
of the University of Pennsylvania; Pennsylvania Hospital, the nation's
first hospital; and Penn Presbyterian Medical Center]; a faculty practice
plan; a primary-care provider network; two multispecialty satellite
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