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syrrius

Permanent total artificial heart could eliminate the need for transplants | Fox News - 1 views

  • Permanent total artificial heart could eliminate the need for transplants
  • John Beckingham (second from the left), who used the Freedom Driver and the SynCardia temporary Total Artificial Heart (TAH) before getting a heart transplant in October 2015, poses for a photo with his wife, Diane (far right), and two
  • A graphic of the Freedom Driver and the SynCardia temporary TAH.  (Photo courtesy SynCardia Systems Inc.)
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  • Every 10 minutes, someone is added to the national transplant waiting list, and every day, 22 people on average die waiting for a match, according to the United Network for Organ Sharing. But, thanks to innovations in bioengineering, all of that could change.
  • Conceived nearly 60 years ago, the total artificial heart (TAH) has helped sustain the sickest biventricular failure patients waiting for a transplant. While the design of the primary TAH used today has mostly remained stagnant since the ’80s, when it was first implanted in a patient, new models and clinical trials may lead to a better device and, one day, a permanent solution.
  • The longest an individual has lived with the most widely used device worldwide, the SynCardia temporary TAH, was nearly four years.
  • At the Cleveland Clinic and the Texas Heart Institute, scientists are exploring how continuous-flow total artificial hearts (CFTAH) may suit patients with biventricular failure who aren’t eligible for an organ transplant, or either don’t have access to the SynCardia temporary TAH or are ineligible to receive it due to its size. The SynCardia temporary TAH can only fit in large chest areas. Researchers at the Cleveland Clinic have completed a three-month study on two calves implanted with their CFTAH, which operates without a diaphragm or valves, and doesn’t require an external driver like the SynCardia temporary TAH.
  • According to data from the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS), of the upwards of 40 percent of patients with end-stage heart failure— a majority of which suffer from biventricular failure— only less than 3 percent receive a TAH.  
  • The shortage of heart transplants and the need for a solution
  • In the late 1960s, when patients began receiving heart transplants, supply was relatively high and demand was low, Donald Isaacs, vice president of communications for SynCardia, told FoxNews.com. The Department of Health and Human Services (HHS) estimates about 4,000 people wait for donor heart transplants each day, while only about 2,300 hearts are donated.
  • Heart disease is the No. 1 cause of death in the U.S., claiming more than 611,000 lives in 2015, according to the Centers for Disease Control and Prevention (CDC).
  • “The big question, which no one knows the answer to, is ‘What are the long-term ramifications of continuous flow in the arterial system?” Manning told FoxNews.com, “and that, unfortunately, has not yet been determined because there hasn’t been a study to look at that.”
  • “Everyone talks about tissue engineering a heart— that’s a long way away— so there are people that are desperate for this technology,” Manning said. “I think it has the potential to save a lot of people’s lives, and with donor hearts not really increasing and in fact decreasing, there’s got to be a solution.”
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    Article speaks of how a (CFTAH) unit could replace a (TAH) unit for patients waiting for a heart transplant!
syrrius

How do beta blocker drugs affect exercise? - 1 views

  • Beta blockers are a type of cardiac medication prescribed after a heart attack or to treat abnormal heart rhythms (arrhythmias) and other conditions. They slow down your heartbeat, and that raises a common question about them: Do they affect your ability to exercise? 
  • Beta Blocker BasicsBeta blockers relieve stress on your heart by slowing the heartbeat. This decreases the force with which the heart muscle contracts and reduces blood vessel contraction in the heart, brain and throughout the body. They are prescribed under several common brand names, including Propranolol (Inderal), Metoprolol (Lopressor), Atenolol (Tenormin) Acebutolol (Sectral), Bisoprolol (Zebeta) and Nadolol (Corgard).
  • Beta blockers may be used to treat abnormal heart rhythms and to prevent abnormally fast heart rates called tachycardia, or irregular rhythms like atrial fibrillation. Since they reduce the demand of the heart muscle for oxygen, they may be useful in treating angina, or chest pain, which occurs when the oxygen demand of the heart exceeds the supply. Beta blockers improve survival after a heart attack and also are used to treat high blood pressure and other heart conditions.
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  • “Your blood pressure and heart rate are similarly changed by exercise and beta blockers,” said Gerald Fletcher, M.D., Professor of Medicine at the Mayo Clinic in Jacksonville, Florida.  “When you become exercise-trained your heart slows and your blood pressure lowers.”
  • “Exercise hard – to the point of being tired – but not excessively hard,” Dr. Fletcher said. “If you reach a point where it is hard to talk, that is probably too much.”
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    Manufactured Drugs - Beta Blockers help to treat several different types of Heart disease, including the disease I have called Hypertrophic cardiomyopathy.
syrrius

Echocardiogram - Echo - 1 views

  • Echocardiogram - Echo
  • What is an echocardiogram?An echocardiogram (echo) is a test that uses high frequency sound waves (ultrasound) to make pictures of your heart. The test is also called echocardiography or diagnostic cardiac ultrasound.
  • Quick factsAn echo uses sound waves to create pictures of your heart’s chambers, valves, walls and the blood vessels (aorta, arteries, veins) attached to your heart.A probe called a transducer is passed over your chest. The probe produces sound waves that bounce off your heart and “echo” back to the probe. These waves are changed into pictures viewed on a video monitor.An echo can’t harm you.
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  • Why do people need an echo test?Your doctor may use an echo test to look at your heart’s structure and check how well your heart functions.The test helps your doctor find out: The size and shape of your heart, and the size, thickness and movement of your heart’s walls.How your heart moves.The heart’s pumping strength.If the heart valves are working correctly.If blood is leaking backwards through your heart valves (regurgitation).If the heart valves are too narrow (stenosis).If there is a tumor or infectious growth around your heart valves.The test also will help your doctor find out if there are: Problems with the outer lining of your heart (the pericardium).Problems with the large blood vessels that enter and leave the heart.Blood clots in the chambers of your heart.Abnormal holes between the chambers of the heart.
  • Cardiomyopathy
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    A description of an Echocardiogram, which essentially takes live pictures of the heart in its entirety. I recently underwent this procedure this year to monitor the thickness of my left ventricle as I have Hypertrophic cardiomyopathy. I undergo this annually. My Left Ventricle is thicker than it should be and it could lead to a permanent closure stopping the flow of blood if not monitored / treated.
Judy Chow

Heart Disease in Women - 0 views

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    Discovered this interactive fitness and wellness website fivi.com. You can share nutrition ideas, set up a virtual running route, & workout ideas. This blog talks about a recent WSJ article on heart disease.
Genevieve Domingo

Apple's Upcoming Health App Is the Start of Something Huge | Business | WIRED - 0 views

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    This article talks about recent rumors that Apple is on the verge of releasing its very own body-monitoring app, Healthbook.  The app is designed to track things such as heart rate, weight, physical movements, and etc.  For those of us who've purchased other body-monitoring apps by third party developers on our iPhones, this new Apple-developed app provides us with another option.
mlcarleo

Deregulation at heart of Japan's new robotics revolution | Reuters - 1 views

    • mlcarleo
       
      Surprised that the US is seen as a rival to Japan in anything tech related. That's refreshing. 
  • Japan was moving to tighten regulations that would shut down his seven-year project.
  • U.S. regulators had already approved,
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  • Japan, with the world's largest robot population, is now awakening to a crisis as its lead in robotics – one of its last areas of technological prominence - comes under threat from better-coordinated efforts in the United States and Germany, as well as Asian rivals South Korea and China.
  • At stake is a fast-growing industry - the market for industrial robotic systems is worth $29 billion
  • expected Japan's robot market alone to triple to 2.4 trillion yen ($21 billion) by 2020.
  • A key trigger to action was Google Inc's surprise acquisition a year ago of Schaft, a venture led by two former Tokyo University professors who developed a humanoid robot that handily won a rescue competition run by a research unit of the U.S. Department of Defense. The robot had to drive a utility vehicle and climb a ladder to prevail against more than a dozen rivals.
stephenmfreeman

Fitness and big data: How wearble tech is changing exercise research - 0 views

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    After having knee surgery several years ago, which thanks to robotic technology and cameras, was a very successful experience. My physician, an Orthopaedical Surgeon and a sports doctor, had a conversation with me about exercise. He suggested that running wasn't the best exercise for knee health. Because many of his patients were injured, they often needed to change what exercise orientation. He shared with me about some benefits of wearable devices. I had a meniscus tear in my knee that required surgery, so decided to become a bike rider instead of a runner. Impressed with the technology involved in my operation, I began to checkout wearable devices and purchased one. Do to my positive experience, I found this article to be very informative about this technology and its health benefits. The article focuses on "accelerometers", which captures a lot of physical data about your movement from sitting, standing, walking, etc. This is so important because you are capturing pertinent data about your health that can be reviewed by you and your doctor or therapist. The article exposes that in the past, researchers relied on questionnaires that we know contained many inaccuracies. The article explains the great potential accelerometers can offer that can allow us to relegate and optimize our activities for our personal health. For example, we can maintain a certain heart rate as we exercise to monitor the calories we are burning and to select a mode of exercise. Should I run, ride a bike, take tai chi, or swim? Is tennis better? Each form of exercise involves a different impact on our bodies. With an accelerometer, this is no longer subjective and this article exposes its many uses. We can now capture and use empirical data to decide which exercise is best for us!
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