Total Artificial Heart

Khalid Alsaaid Felix Chibuzo Obi

TOTAL ARTIFICIAL HEART

FELIX CHIBUZO OBIKHALID ALSAAID

• One Australian every 12 minutes.* Heart Foundation.

• 610,000 Americans die from heart disease each year (1 in every 4 deaths).* Center for diseases control and prevention.

First Patient: Dead Second Patient: DeadThird Patient: Dead

. ..

Mission Impossible

• Introduction • History• Present • Definition • Types • Mechanism • Risk & complications • Present & Future perspectives

Introduction• The population of patients with end-stage heart failure has increased over the years, and the availability of donor organs has not be Sufficient.

• End-stage heart failure represents a highly morbid condition for the patient with limited treatment options.

• The treatment options are heart transplantation, heart–lung transplantation or implantation of a Mechanical Circulatory Support Devices.

• If a patient waits until an organ becomes available for transplantation, they could need to wait months for that organ and therefore their condition could get worse.

• There two Types of MCS Devices • 1. Ventricular Assist Devices (VAD): are use on Short terms to Complement Failing Hearts.

• 2. Total Artificial Heart (TAH): one available option when long-term support of both ventricles is required.

History• Scientist and Engineers were aiming for a temporary support.

• The first TAH was implanted in an animal model and then in a human.

• Contributors to the development of the first artificial heart: William Kolff, Don Olsen, Robert Jarvick and William DeVries.

• Lead to the implantation of the Jarvick 7 • The scientist implanted the Jarvick 7 on a 61year-old man that died after 112 days.

• After the failure they tried implanting the Jarvick 7 in a 25-year-old, but just as bridge to transplantation and it functioned perfectly. 

Artificial Heart … ???

• Artificial Heart provides an extra ventricles

• Total Artificial Heart

How does it work ??

Is there any risk when I implant an

artificial Heart ??

Present and Future Prespectives

• In August 2006, an artificial heart was implanted into a 15-year-old girl.

• It was intended to act as a temporary fixture until a donor heart could be found. Instead, the artificial heart allowed for natural processes to occur and her heart healed on its own.

• After 146 days, TAH was removed, and the girl's heart was able to function properly on its own. 

• Even though the TAH gives a viable alternative to the patients with end stage heart failure, the TAH have some disadvantages.

• Some of this disadvantages are that they don’t fit all the patients, patients are tethered to the driver which interferes with quality of life, durability, complications such as infections, and lack of pressure flow compared to a normal heart.

• Scientists are working to decrease the size of the TAH and improve their function. 

• Some doctors are designing a continuous-flow TAH that has no valves or sensors.