Although it can work with hearts of all sizes, the pacemaker is particularly well-suited to the tiny, fragile hearts of ...

As thousands of people await a lifesaving heart, scientists are racing to buy them more time. A promising advance from scientists in Germany offers a potential solution.

This experimental prototype is the smallest in the world. It can be inserted with a syringe and dissolves when it is no longer needed. Its size is very suitable for babies with heart defects.