Implanting a biventricular pacemaker

The implantation of a biventricular pacemaker is similar to that of a standard pacemaker, but with a few twists. One of the wires must stimulate a particular spot on the outside of the left ventricle. Getting it there can sometimes be a challenge. If you need a biventricular pacemaker, try to find a doctor who has implanted many of them, and who is part of a team that offers complete cardiovascular care. If you would like to see how the procedure is done, you can watch a Webcast of doctors at Wake Forest University Baptist Medical Center implanting a biventricular pacemaker. (Locked) More »

July 2009 references and further reading

Bergmann O, Bhardwaj RD, Bernard S, et al. Evidence for cardiomyocyte renewal in humans. Science 2009; 324:98-102. Murry CE, Lee RT. Development biology. Turnover after the fallout. Science 2009; 324:47-8. Thygesen K, Alpert JS, White HD. Universal definition of myocardial infarction. Journal of the American College of Cardiology 2007; 50:2173-95. (Locked) More »

Regenerating the heart

Researchers from Sweden have demonstrated that the heart is capable of growing new muscle cells, though this process occurs very slowly. (Locked) More »

Redefining myocardial infarction

The definition of a myocardial infarction has been revised to reflect the significance of a protein called troponin, which is released into the bloodstream when heart muscle damaged. (Locked) More »

Advanced pacemaker gets the heart in sync

One-third of people with heart failure have ventricles that beat out of sync. A biventricular pacemaker sends electrical signals to the ventricles to keep them working together, making everyday activities easier. (Locked) More »

Heart infection can pose a medical mystery

Myocarditis is an inflammation of the middle layer of the heart. It may be caused by a virus, allergic reaction, or exposure to a toxin. Diagnosis is difficult because symptoms are not specific and may suggest other causes. (Locked) More »

Heart Beat: The biggest loser

Results of a trial showed that exercise and weight loss combined with the DASH diet for blood pressure control achieved a greater reduction in systolic blood pressure than the diet alone. (Locked) More »

On the horizon

A brief summary of research with potential future applications: closing off the left atrial appendage to prevent clots, stimulating the brains of stroke victims with laser beams, and a new type of stent that dissolves over time. (Locked) More »