A new 3D printed membrane acts like an artificial pericardium to continuously monitor and regulate the heart's beating
“The gap between what patients and doctors expect from these procedures, and the benefit that they actually provide, shows the profound impact of a certain kind of mechanical logic in medicine,” he explains. “Even though doctors value randomized clinical trials and evidence-based medicine, they are powerfully influenced by ideas about how diseases and treatments work. If doctors think a treatment should work, they come to believe that it does work, even when the clinical evidence isn’t there.” [more inside]
"Nature is not always the best designer, at least when it comes to things that humans must build and maintain. So the newest artificial heart doesn’t imitate the cardiac muscle at all. Instead, it whirs like a little propeller, pushing blood through the body at a steady rate. After 500 million years of evolution accustoming the human body to blood moving through us in spurts, a pulse may not be necessary. That, in any case, is the point of view of the 50-odd calves, and no fewer than three human beings, who have gotten along just fine with their blood coursing through them as evenly as Freon through an air conditioner."
Six Second ECG Simulator. "The Cardiac Rhythm Simulator generates 25 of the most common cardiac rhythms for you to explore, review, and play."
Continuous Chest Compression CPR is a hands-only CPR method that doubles a person’s chance of surviving cardiac arrest. It’s easy and does not require mouth-to-mouth contact, making it more likely bystanders will try to help, and it was developed at the University of Arizona College of Medicine. YT link for the video. The Mayo Clinic Presentation.
So apparently it's not the lack of oxygen which causes cells to die. Rather, getting oxygen back, which triggers the same cell death mechanism that guards against cancer, causes cell death.
Trial by Transplant. "Most transplant recipients are grateful beyond measure. Amy Silverstein's view, after nearly two decades with a donated heart, is more conflicted and often bleak. Much of her life, as described in Sick Girl, has revolved around nauseating drugs, ongoing fatigue, painful tests, ER visits and hospitalizations without end—and the constant fear that the next heartbeat could be her last. At low ebb, she has teetered on the edge of giving up."
Human cardiac catheterization was introduced by Werner Forssman in 1929. Ignoring his department chief, and tying his assistant to an operating table to prevent her interference, he placed a ureteral catheter into a vein in his arm, advanced it to the right atrium [of his heart], and walked upstairs to the x-ray department where he took the confirmatory x-ray film. In 1956, Dr. Forssman was awarded The Nobel Prize. [via the "fortune" command]
Convict Heart Transplant A 31 year old 2 time felon just got a heart transplant, costing tax payers close to $1 million dollars. With an annual additional cost of $15,000. Right? Wrong? I'm not so sure.
NASA scientists are successfully growing heart tissue in bioreactors. Need a kidney? No prob, need a heart? Got one. With tech like this, I should probably take up smoking!