Navigation Links
Pumps Someday May Allow Patients to Recover Their Own Hearts

An injured athlete can rest on the couch to recover before returning to sports, but an injured heart doesn’t have the same luxury – at least not yet. //

One Ohio State University Medical Center surgeon predicts that within 10 years, mechanical support devices for the heart will be put to use temporarily to allow a damaged heart to rest and recover itself. Right now, such heart pumps, known commonly as ventricular assist devices, or VADs, are typically used as bridges to transplant and in some cases as long-term therapies for chronically ill patients.

“I see this as a huge potential therapy for many heart failure patients who will have the opportunity 10 years from now to recover their own hearts,” says Dr. Benjamin Sun, chief of cardiothoracic surgery at Ohio State’s Medical Center and director of cardiac transplantation and mechanical support.

Why is he so confident? Because he and other physicians have seen the kind of heart healing a VAD can provide. Functioning essentially as surrogate pumps for the heart, the devices have been used for years to help patients who are poor candidates for transplantation regain enough physical and nutritional health to make them strong and successful transplant recipients.

These early patients’ experiences demonstrated that for some, the pumps could be better therapy than a transplant, Sun said. “This became the jumping-off point for patients who were not good candidates for transplantation. Some people now can go home with these pumps for years and live a very good quality of life. And they can be walking around in public without anyone knowing they have a pump.”

Ohio State’s Medical Center has one of the largest and most successful cardiac mechanical support programs in the country, managing patients with 10 different types of mechanical support devices (including a total artificial heart), and slated to participate in a worldwide study of a new, apricot-sized investig ational device this year.

The devices differ in size and portability – some patients on VADs must remain hospitalized while others are able to live at home with the implanted devices and an accompanying power pack. Why so many? “We don’t have the perfect pump for every indication now. We use a variety of pumps for very different diagnoses,” Sun says.

The pumps’ functions also differ, depending on patient need. Some provide volume displacement, meaning they squeeze blood out of the heart chambers; others operate on a high-speed rotor to provide a continuous flow of blood. The latest generation of VADs operate with magnetic levitation bearings to move blood, meaning the parts never touch each other, which results in a potentially lower risk for clots and less wear on the device itself.

The Ohio State program’s strength and size is largely attributable to its status as an academic medical center.

“As an academic institution we are not married to a single manufacturing company or a single device. We have a strong desire to participate in the future of the field. We analyze the devices and compare them in an unbiased environment,” Sun said.

In animal studies, researchers at Ohio State are using the devices to exercise the heart to see if recovery can be achieved in a chronically ill heart. “For people after an acute attack, we definitely can use devices on them and see recovery. But for people with multiple heart attacks, cardiomyopathy or chronic heart failure, we are still trying to determine whether we can mechanically support them, and recover the heart after the pump gives their heart a rest,” Sun said. “We do see people’s hearts getting stronger with these pumps, but so far they’re not strong enough to come off the pump.”

Researchers also are exploring whether the devices could be combined with stem cell transplants or gene therapy. And there is still a lot to learn about the heart function its elf.

“We understand the damage that occurs to the heart during and after a heart attack. But with other causes of damage, such as chemotherapy and some viruses, we don’t know how to stop or reverse that damage, or even what molecular or cellular mechanism caused the damage in the first place,” Sun said. “We’re hoping we’ll reach a point where mechanical support can rest the heart while we learn what’s going on and can intervene to make the heart better. We could then take all the hardware out, letting the patient walk away from this with their heart truly ‘recovered’”

Source-Newswise
SRM
'"/>




Related medicine news :

1. Death Pumps Up Aggressive Thoughts
2. Financial Allowances Being Offered To Poor Vietnamese HIV Carriers
3. Dentist Banned From Practicing For Allowing Boyfriend to Work on Patients
4. Doctors Protest Against Allowing Nurses To Perform Minor Surgeries
5. Premature Babies Born At 23 Weeks Should Be Allowed To Die
6. Misleading Health Claims On Food Labels No Longer Allowed in EU
7. Lancet Urges To Allow Emergency Contraception Drug As An OTC
8. Women Must Be Allowed To Make Choices On Births
9. Mercy Attempt Allowed for 12 KGMU Students
10. Allowing Children To Drink At Home Curbs Binge Drinking
11. Overseas Trained Nurses To Be Allowed To Retrain For Scottish Jobs
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... 13, 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun Run brought ... This free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed at ... towards children of all ages; it is a non-competitive, non-timed event, which is all ...
(Date:10/13/2017)... ... 13, 2017 , ... Talented host, actor Rob Lowe, is ... a new episode of "Success Files," which is an award-winning educational program broadcasted ... each subject in-depth with passion and integrity. , Sciatica occurs when the sciatic ...
(Date:10/13/2017)... , ... October 13, 2017 , ... “The Journey: From ... every danger possible to save lost souls in the Philippines. “The Journey: From the ... is a dedicated teacher of the Bible. She has taught all ages and currently ...
(Date:10/12/2017)... ... October 12, 2017 , ... First Healthcare Compliance ... management, will showcase a range of technology and learning solutions at the 68th ... and Expo to be held October 14–18, 2017 at the Mandalay Bay Resort ...
(Date:10/12/2017)... , ... October 12, 2017 , ... Planet Fitness, one ... U.S., announced today its plans to open a flagship location in Covington, LA at ... former Rooms To Go store next to Office Depot in the Holiday Square shopping ...
Breaking Medicine News(10 mins):
(Date:10/4/2017)... OBP Medical , a leading ... today announced regulatory approval from Brazil,s ... Nacional de Vigilância Sanitária (ANVISA)) to market ... with integrated LED light source and smoke evacuation ... of a tissue pocket or cavity during surgical ...
(Date:10/2/2017)... COPENHAGEN, Denmark , Oct. 2, 2017 The ... tool in the struggle to reverse the tide of prescription ... plan for regulating their medicine intake and stepping down their ... is set to launch in December 2017; the first 100,000 ... access. Learn more at http://www.rebound-solution.com/ ...
(Date:9/25/2017)... , Sept. 25, 2017   Montrium ... Master File solutions, today—from the IQPC Trial Master ... , NL)—announced that EastHORN Clinical Services has ... clinical programs and TMF management. EastHORN, a leading ... eTMF platform to increase transparency to enable greater ...
Breaking Medicine Technology: