How should the hospital manage its only patient still implanted with a plutonium-powered pacemaker? The woman, whose identity hasn’t been revealed, received the device in 1975, back when she was ...

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The team that carried out the first successful implantation in the U.S. developed a plutonium-powered pacemaker that would last for 30 years. But nuclear-powered pacemakers were impractical.

A handful of people in the United States have plutonium-powered pacemakers. These devices are not dangerous inside the body, but the Los Alamos National Laboratory disposes of them carefully when ...